1 ;;;; that part of the description of the x86-64 instruction set
2 ;;;; which can live on the cross-compilation host
4 ;;;; This software is part of the SBCL system. See the README file for
7 ;;;; This software is derived from the CMU CL system, which was
8 ;;;; written at Carnegie Mellon University and released into the
9 ;;;; public domain. The software is in the public domain and is
10 ;;;; provided with absolutely no warranty. See the COPYING and CREDITS
11 ;;;; files for more information.
14 ;;; FIXME: SB!DISASSEM: prefixes are used so widely in this file that
15 ;;; I wonder whether the separation of the disassembler from the
16 ;;; virtual machine is valid or adds value.
18 ;;; Note: In CMU CL, this used to be a call to SET-DISASSEM-PARAMS.
19 (setf sb
!disassem
:*disassem-inst-alignment-bytes
* 1)
21 ;;; This type is used mostly in disassembly and represents legacy
22 ;;; registers only. R8-R15 are handled separately.
23 (deftype reg
() '(unsigned-byte 3))
25 ;;; This includes legacy registers and R8-R15.
26 (deftype full-reg
() '(unsigned-byte 4))
28 ;;; The XMM registers XMM0 - XMM15.
29 (deftype xmmreg
() '(unsigned-byte 4))
31 ;;; Default word size for the chip: if the operand size /= :dword
32 ;;; we need to output #x66 (or REX) prefix
33 (def!constant
+default-operand-size
+ :dword
)
35 ;;; The default address size for the chip. It could be overwritten
36 ;;; to :dword with a #x67 prefix, but this is never needed by SBCL
37 ;;; and thus not supported by this assembler/disassembler.
38 (def!constant
+default-address-size
+ :qword
)
40 (eval-when (#-sb-xc
:compile-toplevel
:load-toplevel
:execute
)
42 (defun offset-next (value dstate
)
43 (declare (type integer value
)
44 (type sb
!disassem
:disassem-state dstate
))
45 (+ (sb!disassem
:dstate-next-addr dstate
) value
))
47 (defparameter *byte-reg-names
*
48 #(al cl dl bl spl bpl sil dil r8b r9b r10b r11b r12b r13b r14b r15b
))
49 (defparameter *high-byte-reg-names
*
51 (defparameter *word-reg-names
*
52 #(ax cx dx bx sp bp si di r8w r9w r10w r11w r12w r13w r14w r15w
))
53 (defparameter *dword-reg-names
*
54 #(eax ecx edx ebx esp ebp esi edi r8d r9d r10d r11d r12d r13d r14d r15d
))
55 (defparameter *qword-reg-names
*
56 #(rax rcx rdx rbx rsp rbp rsi rdi r8 r9 r10 r11 r12 r13 r14 r15
))
58 ;;; The printers for registers, memory references and immediates need to
59 ;;; take into account the width bit in the instruction, whether a #x66
60 ;;; or a REX prefix was issued, and the contents of the REX prefix.
61 ;;; This is implemented using prefilters to put flags into the slot
62 ;;; INST-PROPERTIES of the DSTATE. These flags are the following
65 ;;; OPERAND-SIZE-8 The width bit was zero
66 ;;; OPERAND-SIZE-16 The "operand size override" prefix (#x66) was found
67 ;;; REX A REX prefix was found
68 ;;; REX-W A REX prefix with the "operand width" bit set was
70 ;;; REX-R A REX prefix with the "register" bit set was found
71 ;;; REX-X A REX prefix with the "index" bit set was found
72 ;;; REX-B A REX prefix with the "base" bit set was found
74 ;;; Return the operand size depending on the prefixes and width bit as
76 (defun inst-operand-size (dstate)
77 (declare (type sb
!disassem
:disassem-state dstate
))
78 (cond ((sb!disassem
:dstate-get-inst-prop dstate
'operand-size-8
)
80 ((sb!disassem
:dstate-get-inst-prop dstate
'rex-w
)
82 ((sb!disassem
:dstate-get-inst-prop dstate
'operand-size-16
)
85 +default-operand-size
+)))
87 ;;; The same as INST-OPERAND-SIZE, but for those instructions (e.g.
88 ;;; PUSH, JMP) that have a default operand size of :qword. It can only
89 ;;; be overwritten to :word.
90 (defun inst-operand-size-default-qword (dstate)
91 (declare (type sb
!disassem
:disassem-state dstate
))
92 (if (sb!disassem
:dstate-get-inst-prop dstate
'operand-size-16
)
96 ;;; Print to STREAM the name of the general-purpose register encoded by
97 ;;; VALUE and of size WIDTH. For robustness, the high byte registers
98 ;;; (AH, BH, CH, DH) are correctly detected, too, although the compiler
99 ;;; does not use them.
100 (defun print-reg-with-width (value width stream dstate
)
101 (declare (type full-reg value
)
103 (type sb
!disassem
:disassem-state dstate
))
104 (princ (if (and (eq width
:byte
)
106 (not (sb!disassem
:dstate-get-inst-prop dstate
'rex
)))
107 (aref *high-byte-reg-names
* (- value
4))
109 (:byte
*byte-reg-names
*)
110 (:word
*word-reg-names
*)
111 (:dword
*dword-reg-names
*)
112 (:qword
*qword-reg-names
*))
115 ;; XXX plus should do some source-var notes
118 (defun print-reg (value stream dstate
)
119 (declare (type full-reg value
)
121 (type sb
!disassem
:disassem-state dstate
))
122 (print-reg-with-width value
123 (inst-operand-size dstate
)
127 (defun print-reg-default-qword (value stream dstate
)
128 (declare (type full-reg value
)
130 (type sb
!disassem
:disassem-state dstate
))
131 (print-reg-with-width value
132 (inst-operand-size-default-qword dstate
)
136 (defun print-byte-reg (value stream dstate
)
137 (declare (type full-reg value
)
139 (type sb
!disassem
:disassem-state dstate
))
140 (print-reg-with-width value
:byte stream dstate
))
142 (defun print-addr-reg (value stream dstate
)
143 (declare (type full-reg value
)
145 (type sb
!disassem
:disassem-state dstate
))
146 (print-reg-with-width value
+default-address-size
+ stream dstate
))
148 ;;; Print a register or a memory reference of the given WIDTH.
149 ;;; If SIZED-P is true, add an explicit size indicator for memory
151 (defun print-reg/mem-with-width
(value width sized-p stream dstate
)
152 (declare (type (or list full-reg
) value
)
153 (type (member :byte
:word
:dword
:qword
) width
)
154 (type boolean sized-p
)
156 (type sb
!disassem
:disassem-state dstate
))
157 (if (typep value
'full-reg
)
158 (print-reg-with-width value width stream dstate
)
159 (print-mem-access value
(and sized-p width
) stream dstate
)))
161 ;;; Print a register or a memory reference. The width is determined by
162 ;;; calling INST-OPERAND-SIZE.
163 (defun print-reg/mem
(value stream dstate
)
164 (declare (type (or list full-reg
) value
)
166 (type sb
!disassem
:disassem-state dstate
))
167 (print-reg/mem-with-width
168 value
(inst-operand-size dstate
) nil stream dstate
))
170 ;; Same as print-reg/mem, but prints an explicit size indicator for
171 ;; memory references.
172 (defun print-sized-reg/mem
(value stream dstate
)
173 (declare (type (or list full-reg
) value
)
175 (type sb
!disassem
:disassem-state dstate
))
176 (print-reg/mem-with-width
177 value
(inst-operand-size dstate
) t stream dstate
))
179 ;;; Same as print-sized-reg/mem, but with a default operand size of
181 (defun print-sized-reg/mem-default-qword
(value stream dstate
)
182 (declare (type (or list full-reg
) value
)
184 (type sb
!disassem
:disassem-state dstate
))
185 (print-reg/mem-with-width
186 value
(inst-operand-size-default-qword dstate
) t stream dstate
))
188 (defun print-sized-byte-reg/mem
(value stream dstate
)
189 (declare (type (or list full-reg
) value
)
191 (type sb
!disassem
:disassem-state dstate
))
192 (print-reg/mem-with-width value
:byte t stream dstate
))
194 (defun print-sized-word-reg/mem
(value stream dstate
)
195 (declare (type (or list full-reg
) value
)
197 (type sb
!disassem
:disassem-state dstate
))
198 (print-reg/mem-with-width value
:word t stream dstate
))
200 (defun print-sized-dword-reg/mem
(value stream dstate
)
201 (declare (type (or list full-reg
) value
)
203 (type sb
!disassem
:disassem-state dstate
))
204 (print-reg/mem-with-width value
:dword t stream dstate
))
206 (defun print-label (value stream dstate
)
207 (declare (ignore dstate
))
208 (sb!disassem
:princ16 value stream
))
210 (defun print-xmmreg (value stream dstate
)
211 (declare (type xmmreg value
)
214 (format stream
"XMM~d" value
))
216 (defun print-xmmreg/mem
(value stream dstate
)
217 (declare (type (or list xmmreg
) value
)
219 (type sb
!disassem
:disassem-state dstate
))
220 (if (typep value
'xmmreg
)
221 (print-xmmreg value stream dstate
)
222 (print-mem-access value nil stream dstate
)))
224 ;; Same as print-xmmreg/mem, but prints an explicit size indicator for
225 ;; memory references.
226 (defun print-sized-xmmreg/mem
(value stream dstate
)
227 (declare (type (or list xmmreg
) value
)
229 (type sb
!disassem
:disassem-state dstate
))
230 (if (typep value
'xmmreg
)
231 (print-xmmreg value stream dstate
)
232 (print-mem-access value
(inst-operand-size dstate
) stream dstate
)))
234 ;;; This prefilter is used solely for its side effects, namely to put
235 ;;; the bits found in the REX prefix into the DSTATE for use by other
236 ;;; prefilters and by printers.
237 (defun prefilter-wrxb (value dstate
)
238 (declare (type (unsigned-byte 4) value
)
239 (type sb
!disassem
:disassem-state dstate
))
240 (sb!disassem
:dstate-put-inst-prop dstate
'rex
)
241 (when (plusp (logand value
#b1000
))
242 (sb!disassem
:dstate-put-inst-prop dstate
'rex-w
))
243 (when (plusp (logand value
#b0100
))
244 (sb!disassem
:dstate-put-inst-prop dstate
'rex-r
))
245 (when (plusp (logand value
#b0010
))
246 (sb!disassem
:dstate-put-inst-prop dstate
'rex-x
))
247 (when (plusp (logand value
#b0001
))
248 (sb!disassem
:dstate-put-inst-prop dstate
'rex-b
))
251 ;;; This prefilter is used solely for its side effect, namely to put
252 ;;; the property OPERAND-SIZE-8 into the DSTATE if VALUE is 0.
253 (defun prefilter-width (value dstate
)
254 (declare (type bit value
)
255 (type sb
!disassem
:disassem-state dstate
))
257 (sb!disassem
:dstate-put-inst-prop dstate
'operand-size-8
))
260 ;;; This prefilter is used solely for its side effect, namely to put
261 ;;; the property OPERAND-SIZE-16 into the DSTATE.
262 (defun prefilter-x66 (value dstate
)
263 (declare (type (eql #x66
) value
)
265 (type sb
!disassem
:disassem-state dstate
))
266 (sb!disassem
:dstate-put-inst-prop dstate
'operand-size-16
))
268 ;;; A register field that can be extended by REX.R.
269 (defun prefilter-reg-r (value dstate
)
270 (declare (type reg value
)
271 (type sb
!disassem
:disassem-state dstate
))
272 (if (sb!disassem
::dstate-get-inst-prop dstate
'rex-r
)
276 ;;; A register field that can be extended by REX.B.
277 (defun prefilter-reg-b (value dstate
)
278 (declare (type reg value
)
279 (type sb
!disassem
:disassem-state dstate
))
280 (if (sb!disassem
::dstate-get-inst-prop dstate
'rex-b
)
284 ;;; Returns either an integer, meaning a register, or a list of
285 ;;; (BASE-REG OFFSET INDEX-REG INDEX-SCALE), where any component
286 ;;; may be missing or nil to indicate that it's not used or has the
287 ;;; obvious default value (e.g., 1 for the index-scale). VALUE is a list
288 ;;; of the mod and r/m field of the ModRM byte of the instruction.
289 ;;; Depending on VALUE a SIB byte and/or an offset may be read. The
290 ;;; REX.B bit from DSTATE is used to extend the sole register or the
291 ;;; BASE-REG to a full register, the REX.X bit does the same for the
293 (defun prefilter-reg/mem
(value dstate
)
294 (declare (type list value
)
295 (type sb
!disassem
:disassem-state dstate
))
296 (let ((mod (first value
))
297 (r/m
(second value
)))
298 (declare (type (unsigned-byte 2) mod
)
299 (type (unsigned-byte 3) r
/m
))
300 (let ((full-reg (if (sb!disassem
:dstate-get-inst-prop dstate
'rex-b
)
303 (declare (type full-reg full-reg
))
309 (let ((sib (sb!disassem
:read-suffix
8 dstate
)))
310 (declare (type (unsigned-byte 8) sib
))
311 (let ((base-reg (ldb (byte 3 0) sib
))
312 (index-reg (ldb (byte 3 3) sib
))
313 (index-scale (ldb (byte 2 6) sib
)))
314 (declare (type (unsigned-byte 3) base-reg index-reg
)
315 (type (unsigned-byte 2) index-scale
))
319 (if (= base-reg
#b101
)
320 (sb!disassem
:read-signed-suffix
32 dstate
)
323 (sb!disassem
:read-signed-suffix
8 dstate
))
325 (sb!disassem
:read-signed-suffix
32 dstate
)))))
326 (list (unless (and (= mod
#b00
) (= base-reg
#b101
))
327 (if (sb!disassem
:dstate-get-inst-prop dstate
'rex-b
)
331 (unless (= index-reg
#b100
)
332 (if (sb!disassem
:dstate-get-inst-prop dstate
'rex-x
)
335 (ash 1 index-scale
))))))
336 ((and (= mod
#b00
) (= r
/m
#b101
))
337 (list 'rip
(sb!disassem
:read-signed-suffix
32 dstate
)))
341 (list full-reg
(sb!disassem
:read-signed-suffix
8 dstate
)))
343 (list full-reg
(sb!disassem
:read-signed-suffix
32 dstate
)))))))
345 (defun read-address (value dstate
)
346 (declare (ignore value
)) ; always nil anyway
347 (sb!disassem
:read-suffix
(width-bits (inst-operand-size dstate
)) dstate
))
349 (defun width-bits (width)
358 ;;;; disassembler argument types
360 ;;; Used to capture the lower four bits of the REX prefix.
361 (sb!disassem
:define-arg-type wrxb
362 :prefilter
#'prefilter-wrxb
)
364 (sb!disassem
:define-arg-type width
365 :prefilter
#'prefilter-width
366 :printer
(lambda (value stream dstate
)
367 (declare (ignore value
))
368 (princ (schar (symbol-name (inst-operand-size dstate
)) 0)
371 ;;; Used to capture the effect of the #x66 operand size override prefix.
372 (sb!disassem
:define-arg-type x66
373 :prefilter
#'prefilter-x66
)
375 (sb!disassem
:define-arg-type displacement
377 :use-label
#'offset-next
378 :printer
(lambda (value stream dstate
)
379 (sb!disassem
:maybe-note-assembler-routine value nil dstate
)
380 (print-label value stream dstate
)))
382 (sb!disassem
:define-arg-type accum
383 :printer
(lambda (value stream dstate
)
384 (declare (ignore value
)
386 (type sb
!disassem
:disassem-state dstate
))
387 (print-reg 0 stream dstate
)))
389 (sb!disassem
:define-arg-type reg
390 :prefilter
#'prefilter-reg-r
391 :printer
#'print-reg
)
393 (sb!disassem
:define-arg-type reg-b
394 :prefilter
#'prefilter-reg-b
395 :printer
#'print-reg
)
397 (sb!disassem
:define-arg-type reg-b-default-qword
398 :prefilter
#'prefilter-reg-b
399 :printer
#'print-reg-default-qword
)
401 (sb!disassem
:define-arg-type imm-addr
402 :prefilter
#'read-address
403 :printer
#'print-label
)
405 ;;; Normally, immediate values for an operand size of :qword are of size
406 ;;; :dword and are sign-extended to 64 bits. For an exception, see the
407 ;;; argument type definition following this one.
408 (sb!disassem
:define-arg-type signed-imm-data
409 :prefilter
(lambda (value dstate
)
410 (declare (ignore value
)) ; always nil anyway
411 (let ((width (width-bits (inst-operand-size dstate
))))
414 (sb!disassem
:read-signed-suffix width dstate
))))
416 ;;; Used by the variant of the MOV instruction with opcode B8 which can
417 ;;; move immediates of all sizes (i.e. including :qword) into a
419 (sb!disassem
:define-arg-type signed-imm-data-upto-qword
420 :prefilter
(lambda (value dstate
)
421 (declare (ignore value
)) ; always nil anyway
422 (sb!disassem
:read-signed-suffix
423 (width-bits (inst-operand-size dstate
))
426 ;;; Used by those instructions that have a default operand size of
427 ;;; :qword. Nevertheless the immediate is at most of size :dword.
428 ;;; The only instruction of this kind having a variant with an immediate
429 ;;; argument is PUSH.
430 (sb!disassem
:define-arg-type signed-imm-data-default-qword
431 :prefilter
(lambda (value dstate
)
432 (declare (ignore value
)) ; always nil anyway
433 (let ((width (width-bits
434 (inst-operand-size-default-qword dstate
))))
437 (sb!disassem
:read-signed-suffix width dstate
))))
439 (sb!disassem
:define-arg-type signed-imm-byte
440 :prefilter
(lambda (value dstate
)
441 (declare (ignore value
)) ; always nil anyway
442 (sb!disassem
:read-signed-suffix
8 dstate
)))
444 (sb!disassem
:define-arg-type imm-byte
445 :prefilter
(lambda (value dstate
)
446 (declare (ignore value
)) ; always nil anyway
447 (sb!disassem
:read-suffix
8 dstate
)))
449 ;;; needed for the ret imm16 instruction
450 (sb!disassem
:define-arg-type imm-word-16
451 :prefilter
(lambda (value dstate
)
452 (declare (ignore value
)) ; always nil anyway
453 (sb!disassem
:read-suffix
16 dstate
)))
455 (sb!disassem
:define-arg-type reg
/mem
456 :prefilter
#'prefilter-reg
/mem
457 :printer
#'print-reg
/mem
)
458 (sb!disassem
:define-arg-type sized-reg
/mem
459 ;; Same as reg/mem, but prints an explicit size indicator for
460 ;; memory references.
461 :prefilter
#'prefilter-reg
/mem
462 :printer
#'print-sized-reg
/mem
)
464 ;;; Arguments of type reg/mem with a fixed size.
465 (sb!disassem
:define-arg-type sized-byte-reg
/mem
466 :prefilter
#'prefilter-reg
/mem
467 :printer
#'print-sized-byte-reg
/mem
)
468 (sb!disassem
:define-arg-type sized-word-reg
/mem
469 :prefilter
#'prefilter-reg
/mem
470 :printer
#'print-sized-word-reg
/mem
)
471 (sb!disassem
:define-arg-type sized-dword-reg
/mem
472 :prefilter
#'prefilter-reg
/mem
473 :printer
#'print-sized-dword-reg
/mem
)
475 ;;; Same as sized-reg/mem, but with a default operand size of :qword.
476 (sb!disassem
:define-arg-type sized-reg
/mem-default-qword
477 :prefilter
#'prefilter-reg
/mem
478 :printer
#'print-sized-reg
/mem-default-qword
)
481 (sb!disassem
:define-arg-type xmmreg
482 :prefilter
#'prefilter-reg-r
483 :printer
#'print-xmmreg
)
485 (sb!disassem
:define-arg-type xmmreg-b
486 :prefilter
#'prefilter-reg-b
487 :printer
#'print-xmmreg
)
489 (sb!disassem
:define-arg-type xmmreg
/mem
490 :prefilter
#'prefilter-reg
/mem
491 :printer
#'print-xmmreg
/mem
)
493 (sb!disassem
:define-arg-type sized-xmmreg
/mem
494 :prefilter
#'prefilter-reg
/mem
495 :printer
#'print-sized-xmmreg
/mem
)
498 (eval-when (:compile-toplevel
:load-toplevel
:execute
)
499 (defparameter *conditions
*
502 (:b .
2) (:nae .
2) (:c .
2)
503 (:nb .
3) (:ae .
3) (:nc .
3)
504 (:eq .
4) (:e .
4) (:z .
4)
511 (:np .
11) (:po .
11)
512 (:l .
12) (:nge .
12)
513 (:nl .
13) (:ge .
13)
514 (:le .
14) (:ng .
14)
515 (:nle .
15) (:g .
15)))
516 (defparameter *condition-name-vec
*
517 (let ((vec (make-array 16 :initial-element nil
)))
518 (dolist (cond *conditions
*)
519 (when (null (aref vec
(cdr cond
)))
520 (setf (aref vec
(cdr cond
)) (car cond
))))
524 ;;; Set assembler parameters. (In CMU CL, this was done with
525 ;;; a call to a macro DEF-ASSEMBLER-PARAMS.)
526 (eval-when (:compile-toplevel
:load-toplevel
:execute
)
527 (setf sb
!assem
:*assem-scheduler-p
* nil
))
529 (sb!disassem
:define-arg-type condition-code
530 :printer
*condition-name-vec
*)
532 (defun conditional-opcode (condition)
533 (cdr (assoc condition
*conditions
* :test
#'eq
)))
535 ;;;; disassembler instruction formats
537 (eval-when (:compile-toplevel
:execute
)
538 (defun swap-if (direction field1 separator field2
)
539 `(:if
(,direction
:constant
0)
540 (,field1
,separator
,field2
)
541 (,field2
,separator
,field1
))))
543 (sb!disassem
:define-instruction-format
(byte 8 :default-printer
'(:name
))
544 (op :field
(byte 8 0))
549 (sb!disassem
:define-instruction-format
(two-bytes 16
550 :default-printer
'(:name
))
551 (op :fields
(list (byte 8 0) (byte 8 8))))
553 (sb!disassem
:define-instruction-format
(three-bytes 24
554 :default-printer
'(:name
))
555 (op :fields
(list (byte 8 0) (byte 8 8) (byte 8 16))))
557 ;;; A one-byte instruction with a #x66 prefix, used to indicate an
558 ;;; operand size of :word.
559 (sb!disassem
:define-instruction-format
(x66-byte 16
560 :default-printer
'(:name
))
561 (x66 :field
(byte 8 0) :value
#x66
)
562 (op :field
(byte 8 8)))
564 ;;; A one-byte instruction with a REX prefix, used to indicate an
565 ;;; operand size of :qword. REX.W must be 1, the other three bits are
567 (sb!disassem
:define-instruction-format
(rex-byte 16
568 :default-printer
'(:name
))
569 (rex :field
(byte 5 3) :value
#b01001
)
570 (op :field
(byte 8 8)))
572 (sb!disassem
:define-instruction-format
(simple 8)
573 (op :field
(byte 7 1))
574 (width :field
(byte 1 0) :type
'width
)
579 (sb!disassem
:define-instruction-format
(rex-simple 16)
580 (rex :field
(byte 4 4) :value
#b0100
)
581 (wrxb :field
(byte 4 0) :type
'wrxb
)
582 (op :field
(byte 7 9))
583 (width :field
(byte 1 8) :type
'width
)
588 ;;; Same as simple, but with direction bit
589 (sb!disassem
:define-instruction-format
(simple-dir 8 :include
'simple
)
590 (op :field
(byte 6 2))
591 (dir :field
(byte 1 1)))
593 ;;; Same as simple, but with the immediate value occurring by default,
594 ;;; and with an appropiate printer.
595 (sb!disassem
:define-instruction-format
(accum-imm 8
597 :default-printer
'(:name
598 :tab accum
", " imm
))
599 (imm :type
'signed-imm-data
))
601 (sb!disassem
:define-instruction-format
(rex-accum-imm 16
603 :default-printer
'(:name
604 :tab accum
", " imm
))
605 (imm :type
'signed-imm-data
))
607 (sb!disassem
:define-instruction-format
(reg-no-width 8
608 :default-printer
'(:name
:tab reg
))
609 (op :field
(byte 5 3))
610 (reg :field
(byte 3 0) :type
'reg-b
)
615 (sb!disassem
:define-instruction-format
(rex-reg-no-width 16
616 :default-printer
'(:name
:tab reg
))
617 (rex :field
(byte 4 4) :value
#b0100
)
618 (wrxb :field
(byte 4 0) :type
'wrxb
)
619 (op :field
(byte 5 11))
620 (reg :field
(byte 3 8) :type
'reg-b
)
625 ;;; Same as reg-no-width, but with a default operand size of :qword.
626 (sb!disassem
:define-instruction-format
(reg-no-width-default-qword 8
627 :include
'reg-no-width
628 :default-printer
'(:name
:tab reg
))
629 (reg :type
'reg-b-default-qword
))
631 ;;; Same as rex-reg-no-width, but with a default operand size of :qword.
632 (sb!disassem
:define-instruction-format
(rex-reg-no-width-default-qword 16
633 :include
'rex-reg-no-width
634 :default-printer
'(:name
:tab reg
))
635 (reg :type
'reg-b-default-qword
))
637 ;;; Adds a width field to reg-no-width. Note that we can't use
638 ;;; :INCLUDE 'REG-NO-WIDTH here to save typing because that would put
639 ;;; the WIDTH field last, but the prefilter for WIDTH must run before
640 ;;; the one for IMM to be able to determine the correct size of IMM.
641 (sb!disassem
:define-instruction-format
(reg 8
642 :default-printer
'(:name
:tab reg
))
643 (op :field
(byte 4 4))
644 (width :field
(byte 1 3) :type
'width
)
645 (reg :field
(byte 3 0) :type
'reg-b
)
650 (sb!disassem
:define-instruction-format
(rex-reg 16
651 :default-printer
'(:name
:tab reg
))
652 (rex :field
(byte 4 4) :value
#b0100
)
653 (wrxb :field
(byte 4 0) :type
'wrxb
)
654 (width :field
(byte 1 11) :type
'width
)
655 (op :field
(byte 4 12))
656 (reg :field
(byte 3 8) :type
'reg-b
)
661 (sb!disassem
:define-instruction-format
(two-bytes 16
662 :default-printer
'(:name
))
663 (op :fields
(list (byte 8 0) (byte 8 8))))
665 (sb!disassem
:define-instruction-format
(reg-reg/mem
16
667 `(:name
:tab reg
", " reg
/mem
))
668 (op :field
(byte 7 1))
669 (width :field
(byte 1 0) :type
'width
)
670 (reg/mem
:fields
(list (byte 2 14) (byte 3 8))
672 (reg :field
(byte 3 11) :type
'reg
)
676 (sb!disassem
:define-instruction-format
(rex-reg-reg/mem
24
678 `(:name
:tab reg
", " reg
/mem
))
679 (rex :field
(byte 4 4) :value
#b0100
)
680 (wrxb :field
(byte 4 0) :type
'wrxb
)
681 (width :field
(byte 1 8) :type
'width
)
682 (op :field
(byte 7 9))
683 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
685 (reg :field
(byte 3 19) :type
'reg
)
689 ;;; same as reg-reg/mem, but with direction bit
690 (sb!disassem
:define-instruction-format
(reg-reg/mem-dir
16
691 :include
'reg-reg
/mem
695 ,(swap-if 'dir
'reg
/mem
", " 'reg
)))
696 (op :field
(byte 6 2))
697 (dir :field
(byte 1 1)))
699 (sb!disassem
:define-instruction-format
(rex-reg-reg/mem-dir
24
700 :include
'rex-reg-reg
/mem
704 ,(swap-if 'dir
'reg
/mem
", " 'reg
)))
705 (op :field
(byte 6 10))
706 (dir :field
(byte 1 9)))
708 (sb!disassem
:define-instruction-format
(x66-reg-reg/mem-dir
24
712 ,(swap-if 'dir
'reg
/mem
", " 'reg
)))
713 (x66 :field
(byte 8 0) :type
'x66
:value
#x66
)
714 (op :field
(byte 6 10))
715 (dir :field
(byte 1 9))
716 (width :field
(byte 1 8) :type
'width
)
717 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
719 (reg :field
(byte 3 19) :type
'reg
))
721 (sb!disassem
:define-instruction-format
(x66-rex-reg-reg/mem-dir
32
725 ,(swap-if 'dir
'reg
/mem
", " 'reg
)))
726 (x66 :field
(byte 8 0) :type
'x66
:value
#x66
)
727 (rex :field
(byte 4 12) :value
#b0100
)
728 (wrxb :field
(byte 4 8) :type
'wrxb
)
729 (op :field
(byte 6 18))
730 (dir :field
(byte 1 17))
731 (width :field
(byte 1 16) :type
'width
)
732 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
734 (reg :field
(byte 3 27) :type
'reg
))
736 ;;; Same as reg-reg/mem, but uses the reg field as a second op code.
737 (sb!disassem
:define-instruction-format
(reg/mem
16
738 :default-printer
'(:name
:tab reg
/mem
))
739 (op :fields
(list (byte 7 1) (byte 3 11)))
740 (width :field
(byte 1 0) :type
'width
)
741 (reg/mem
:fields
(list (byte 2 14) (byte 3 8))
742 :type
'sized-reg
/mem
)
746 (sb!disassem
:define-instruction-format
(rex-reg/mem
24
747 :default-printer
'(:name
:tab reg
/mem
))
748 (rex :field
(byte 4 4) :value
#b0100
)
749 (wrxb :field
(byte 4 0) :type
'wrxb
)
750 (op :fields
(list (byte 7 9) (byte 3 19)))
751 (width :field
(byte 1 8) :type
'width
)
752 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
753 :type
'sized-reg
/mem
)
757 ;;; Same as reg/mem, but without a width field and with a default
758 ;;; operand size of :qword.
759 (sb!disassem
:define-instruction-format
(reg/mem-default-qword
16
760 :default-printer
'(:name
:tab reg
/mem
))
761 (op :fields
(list (byte 8 0) (byte 3 11)))
762 (reg/mem
:fields
(list (byte 2 14) (byte 3 8))
763 :type
'sized-reg
/mem-default-qword
))
765 (sb!disassem
:define-instruction-format
(rex-reg/mem-default-qword
24
766 :default-printer
'(:name
:tab reg
/mem
))
767 (rex :field
(byte 4 4) :value
#b0100
)
768 (wrxb :field
(byte 4 0) :type
'wrxb
)
769 (op :fields
(list (byte 8 8) (byte 3 19)))
770 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
771 :type
'sized-reg
/mem-default-qword
))
773 ;;; Same as reg/mem, but with the immediate value occurring by default,
774 ;;; and with an appropiate printer.
775 (sb!disassem
:define-instruction-format
(reg/mem-imm
16
778 '(:name
:tab reg
/mem
", " imm
))
779 (reg/mem
:type
'sized-reg
/mem
)
780 (imm :type
'signed-imm-data
))
782 (sb!disassem
:define-instruction-format
(rex-reg/mem-imm
24
783 :include
'rex-reg
/mem
785 '(:name
:tab reg
/mem
", " imm
))
786 (reg/mem
:type
'sized-reg
/mem
)
787 (imm :type
'signed-imm-data
))
789 ;;; Same as reg/mem, but with using the accumulator in the default printer
790 (sb!disassem
:define-instruction-format
792 :include
'reg
/mem
:default-printer
'(:name
:tab accum
", " reg
/mem
))
793 (reg/mem
:type
'reg
/mem
) ; don't need a size
794 (accum :type
'accum
))
796 (sb!disassem
:define-instruction-format
(rex-accum-reg/mem
24
797 :include
'rex-reg
/mem
799 '(:name
:tab accum
", " reg
/mem
))
800 (reg/mem
:type
'reg
/mem
) ; don't need a size
801 (accum :type
'accum
))
803 ;;; Same as reg-reg/mem, but with a prefix of #b00001111
804 (sb!disassem
:define-instruction-format
(ext-reg-reg/mem
24
806 `(:name
:tab reg
", " reg
/mem
))
807 (prefix :field
(byte 8 0) :value
#b00001111
)
808 (op :field
(byte 7 9))
809 (width :field
(byte 1 8) :type
'width
)
810 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
812 (reg :field
(byte 3 19) :type
'reg
)
816 (sb!disassem
:define-instruction-format
(ext-reg-reg/mem-no-width
24
818 `(:name
:tab reg
", " reg
/mem
))
819 (prefix :field
(byte 8 0) :value
#b00001111
)
820 (op :field
(byte 8 8))
821 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
823 (reg :field
(byte 3 19) :type
'reg
))
825 (sb!disassem
:define-instruction-format
(rex-ext-reg-reg/mem-no-width
32
827 `(:name
:tab reg
", " reg
/mem
))
828 (rex :field
(byte 4 4) :value
#b0100
)
829 (wrxb :field
(byte 4 0) :type
'wrxb
)
830 (prefix :field
(byte 8 8) :value
#b00001111
)
831 (op :field
(byte 8 16))
832 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
834 (reg :field
(byte 3 27) :type
'reg
))
836 (sb!disassem
:define-instruction-format
(ext-reg/mem-no-width
24
838 `(:name
:tab reg
/mem
))
839 (prefix :field
(byte 8 0) :value
#b00001111
)
840 (op :fields
(list (byte 8 8) (byte 3 19)))
841 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
844 (sb!disassem
:define-instruction-format
(rex-ext-reg/mem-no-width
32
846 `(:name
:tab reg
/mem
))
847 (rex :field
(byte 4 4) :value
#b0100
)
848 (wrxb :field
(byte 4 0) :type
'wrxb
)
849 (prefix :field
(byte 8 8) :value
#b00001111
)
850 (op :fields
(list (byte 8 16) (byte 3 27)))
851 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
854 ;;; reg-no-width with #x0f prefix
855 (sb!disassem
:define-instruction-format
(ext-reg-no-width 16
856 :default-printer
'(:name
:tab reg
))
857 (prefix :field
(byte 8 0) :value
#b00001111
)
858 (op :field
(byte 5 11))
859 (reg :field
(byte 3 8) :type
'reg-b
))
861 ;;; Same as reg/mem, but with a prefix of #b00001111
862 (sb!disassem
:define-instruction-format
(ext-reg/mem
24
863 :default-printer
'(:name
:tab reg
/mem
))
864 (prefix :field
(byte 8 0) :value
#b00001111
)
865 (op :fields
(list (byte 7 9) (byte 3 19)))
866 (width :field
(byte 1 8) :type
'width
)
867 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
868 :type
'sized-reg
/mem
)
872 (sb!disassem
:define-instruction-format
(ext-reg/mem-imm
24
873 :include
'ext-reg
/mem
875 '(:name
:tab reg
/mem
", " imm
))
876 (imm :type
'signed-imm-data
))
878 ;;;; XMM instructions
880 ;;; All XMM instructions use an extended opcode (#x0F as the first
881 ;;; opcode byte). Therefore in the following "EXT" in the name of the
882 ;;; instruction formats refers to the formats that have an additional
883 ;;; prefix (#x66, #xF2 or #xF3).
885 ;;; Instructions having an XMM register as the destination operand
886 ;;; and an XMM register or a memory location as the source operand.
887 ;;; The size of the operands is implicitly given by the instruction.
888 (sb!disassem
:define-instruction-format
(xmm-xmm/mem
24
890 '(:name
:tab reg
", " reg
/mem
))
891 (x0f :field
(byte 8 0) :value
#x0f
)
892 (op :field
(byte 8 8))
893 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
895 (reg :field
(byte 3 19) :type
'xmmreg
))
897 (sb!disassem
:define-instruction-format
(rex-xmm-xmm/mem
32
899 '(:name
:tab reg
", " reg
/mem
))
900 (rex :field
(byte 4 4) :value
#b0100
)
901 (wrxb :field
(byte 4 0) :type
'wrxb
)
902 (x0f :field
(byte 8 8) :value
#x0f
)
903 (op :field
(byte 8 16))
904 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
906 (reg :field
(byte 3 27) :type
'xmmreg
))
908 (sb!disassem
:define-instruction-format
(ext-xmm-xmm/mem
32
910 '(:name
:tab reg
", " reg
/mem
))
911 (prefix :field
(byte 8 0))
912 (x0f :field
(byte 8 8) :value
#x0f
)
913 (op :field
(byte 8 16))
914 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
916 (reg :field
(byte 3 27) :type
'xmmreg
))
918 (sb!disassem
:define-instruction-format
(ext-rex-xmm-xmm/mem
40
920 '(:name
:tab reg
", " reg
/mem
))
921 (prefix :field
(byte 8 0))
922 (rex :field
(byte 4 12) :value
#b0100
)
923 (wrxb :field
(byte 4 8) :type
'wrxb
)
924 (x0f :field
(byte 8 16) :value
#x0f
)
925 (op :field
(byte 8 24))
926 (reg/mem
:fields
(list (byte 2 38) (byte 3 32))
928 (reg :field
(byte 3 35) :type
'xmmreg
))
930 ;;; Same as xmm-xmm/mem etc., but with direction bit.
932 (sb!disassem
:define-instruction-format
(ext-xmm-xmm/mem-dir
32
933 :include
'ext-xmm-xmm
/mem
937 ,(swap-if 'dir
'reg
", " 'reg
/mem
)))
938 (op :field
(byte 7 17))
939 (dir :field
(byte 1 16)))
941 (sb!disassem
:define-instruction-format
(ext-rex-xmm-xmm/mem-dir
40
942 :include
'ext-rex-xmm-xmm
/mem
946 ,(swap-if 'dir
'reg
", " 'reg
/mem
)))
947 (op :field
(byte 7 25))
948 (dir :field
(byte 1 24)))
950 ;;; Instructions having an XMM register as one operand
951 ;;; and a constant (unsigned) byte as the other.
953 (sb!disassem
:define-instruction-format
(ext-xmm-imm 32
955 '(:name
:tab reg
/mem
", " imm
))
956 (prefix :field
(byte 8 0))
957 (x0f :field
(byte 8 8) :value
#x0f
)
958 (op :field
(byte 8 16))
959 (/i
:field
(byte 3 27))
960 (b11 :field
(byte 2 30) :value
#b11
)
961 (reg/mem
:field
(byte 3 24)
963 (imm :type
'imm-byte
))
965 (sb!disassem
:define-instruction-format
(ext-rex-xmm-imm 40
967 '(:name
:tab reg
/mem
", " imm
))
968 (prefix :field
(byte 8 0))
969 (rex :field
(byte 4 12) :value
#b0100
)
970 (wrxb :field
(byte 4 8) :type
'wrxb
)
971 (x0f :field
(byte 8 16) :value
#x0f
)
972 (op :field
(byte 8 24))
973 (/i
:field
(byte 3 35))
974 (b11 :field
(byte 2 38) :value
#b11
)
975 (reg/mem
:field
(byte 3 32)
977 (imm :type
'imm-byte
))
979 ;;; Instructions having an XMM register as one operand and a general-
980 ;;; -purpose register or a memory location as the other operand.
982 (sb!disassem
:define-instruction-format
(xmm-reg/mem
24
984 '(:name
:tab reg
", " reg
/mem
))
985 (x0f :field
(byte 8 0) :value
#x0f
)
986 (op :field
(byte 8 8))
987 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
988 :type
'sized-reg
/mem
)
989 (reg :field
(byte 3 19) :type
'xmmreg
))
991 (sb!disassem
:define-instruction-format
(rex-xmm-reg/mem
32
993 '(:name
:tab reg
", " reg
/mem
))
994 (rex :field
(byte 4 4) :value
#b0100
)
995 (wrxb :field
(byte 4 0) :type
'wrxb
)
996 (x0f :field
(byte 8 8) :value
#x0f
)
997 (op :field
(byte 8 16))
998 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
999 :type
'sized-reg
/mem
)
1000 (reg :field
(byte 3 27) :type
'xmmreg
))
1002 (sb!disassem
:define-instruction-format
(ext-xmm-reg/mem
32
1004 '(:name
:tab reg
", " reg
/mem
))
1005 (prefix :field
(byte 8 0))
1006 (x0f :field
(byte 8 8) :value
#x0f
)
1007 (op :field
(byte 8 16))
1008 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
1009 :type
'sized-reg
/mem
)
1010 (reg :field
(byte 3 27) :type
'xmmreg
))
1012 (sb!disassem
:define-instruction-format
(ext-rex-xmm-reg/mem
40
1014 '(:name
:tab reg
", " reg
/mem
))
1015 (prefix :field
(byte 8 0))
1016 (rex :field
(byte 4 12) :value
#b0100
)
1017 (wrxb :field
(byte 4 8) :type
'wrxb
)
1018 (x0f :field
(byte 8 16) :value
#x0f
)
1019 (op :field
(byte 8 24))
1020 (reg/mem
:fields
(list (byte 2 38) (byte 3 32))
1021 :type
'sized-reg
/mem
)
1022 (reg :field
(byte 3 35) :type
'xmmreg
))
1024 ;;; Instructions having a general-purpose register as one operand and an
1025 ;;; XMM register or a memory location as the other operand.
1027 (sb!disassem
:define-instruction-format
(reg-xmm/mem
24
1029 '(:name
:tab reg
", " reg
/mem
))
1030 (x0f :field
(byte 8 0) :value
#x0f
)
1031 (op :field
(byte 8 8))
1032 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
1033 :type
'sized-xmmreg
/mem
)
1034 (reg :field
(byte 3 19) :type
'reg
))
1036 (sb!disassem
:define-instruction-format
(rex-reg-xmm/mem
32
1038 '(:name
:tab reg
", " reg
/mem
))
1039 (rex :field
(byte 4 4) :value
#b0100
)
1040 (wrxb :field
(byte 4 0) :type
'wrxb
)
1041 (x0f :field
(byte 8 8) :value
#x0f
)
1042 (op :field
(byte 8 16))
1043 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
1044 :type
'sized-xmmreg
/mem
)
1045 (reg :field
(byte 3 27) :type
'reg
))
1047 (sb!disassem
:define-instruction-format
(ext-reg-xmm/mem
32
1049 '(:name
:tab reg
", " reg
/mem
))
1050 (prefix :field
(byte 8 0))
1051 (x0f :field
(byte 8 8) :value
#x0f
)
1052 (op :field
(byte 8 16))
1053 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
1054 :type
'sized-xmmreg
/mem
)
1055 (reg :field
(byte 3 27) :type
'reg
))
1057 (sb!disassem
:define-instruction-format
(ext-rex-reg-xmm/mem
40
1059 '(:name
:tab reg
", " reg
/mem
))
1060 (prefix :field
(byte 8 0))
1061 (rex :field
(byte 4 12) :value
#b0100
)
1062 (wrxb :field
(byte 4 8) :type
'wrxb
)
1063 (x0f :field
(byte 8 16) :value
#x0f
)
1064 (op :field
(byte 8 24))
1065 (reg/mem
:fields
(list (byte 2 38) (byte 3 32))
1066 :type
'sized-xmmreg
/mem
)
1067 (reg :field
(byte 3 35) :type
'reg
))
1069 ;; XMM comparison instruction
1071 (eval-when (:compile-toplevel
:load-toplevel
:execute
)
1072 (defparameter *sse-conditions
* #(:eq
:lt
:le
:unord
:neq
:nlt
:nle
:ord
)))
1074 (sb!disassem
:define-arg-type sse-condition-code
1075 :printer
*sse-conditions
*)
1077 (sb!disassem
:define-instruction-format
(xmm-xmm/mem-cmp
32
1079 '(:name
" " cc
:tab reg
", " reg
/mem
))
1080 (x0f :field
(byte 8 0) :value
#x0f
)
1081 (op :field
(byte 8 8))
1082 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
1084 (reg :field
(byte 3 19) :type
'xmmreg
)
1085 (cc :field
(byte 8 24) :type
'sse-condition-code
))
1087 (sb!disassem
:define-instruction-format
(rex-xmm-xmm/mem-cmp
40
1089 '(:name
" " cc
:tab reg
", " reg
/mem
))
1090 (rex :field
(byte 4 4) :value
#b0100
)
1091 (wrxb :field
(byte 4 0) :type
'wrxb
)
1092 (x0f :field
(byte 8 8) :value
#x0f
)
1093 (op :field
(byte 8 16))
1094 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
1096 (reg :field
(byte 3 27) :type
'xmmreg
)
1097 (cc :field
(byte 8 32) :type
'sse-condition-code
))
1099 (sb!disassem
:define-instruction-format
(ext-xmm-xmm/mem-cmp
40
1101 '(:name
" " cc
:tab reg
", " reg
/mem
))
1102 (prefix :field
(byte 8 0))
1103 (x0f :field
(byte 8 8) :value
#x0f
)
1104 (op :field
(byte 8 16))
1105 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
1107 (reg :field
(byte 3 27) :type
'xmmreg
)
1108 (cc :field
(byte 8 32) :type
'sse-condition-code
))
1110 (sb!disassem
:define-instruction-format
(ext-rex-xmm-xmm/mem-cmp
48
1112 '(:name
" " cc
:tab reg
", " reg
/mem
))
1113 (prefix :field
(byte 8 0))
1114 (rex :field
(byte 4 12) :value
#b0100
)
1115 (wrxb :field
(byte 4 8) :type
'wrxb
)
1116 (x0f :field
(byte 8 16) :value
#x0f
)
1117 (op :field
(byte 8 24))
1118 (reg/mem
:fields
(list (byte 2 38) (byte 3 32))
1120 (reg :field
(byte 3 35) :type
'xmmreg
)
1121 (cc :field
(byte 8 40) :type
'sse-condition-code
))
1123 ;;; XMM instructions with 8 bit immediate data
1125 (sb!disassem
:define-instruction-format
(xmm-xmm/mem-imm
24
1127 '(:name
:tab reg
", " reg
/mem
" " imm
))
1128 (x0f :field
(byte 8 0) :value
#x0f
)
1129 (op :field
(byte 8 8))
1130 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
1132 (reg :field
(byte 3 19) :type
'xmmreg
)
1133 (imm :type
'imm-byte
))
1135 (sb!disassem
:define-instruction-format
(rex-xmm-xmm/mem-imm
32
1137 '(:name
:tab reg
", " reg
/mem
" " imm
))
1138 (rex :field
(byte 4 4) :value
#b0100
)
1139 (wrxb :field
(byte 4 0) :type
'wrxb
)
1140 (x0f :field
(byte 8 8) :value
#x0f
)
1141 (op :field
(byte 8 16))
1142 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
1144 (reg :field
(byte 3 27) :type
'xmmreg
)
1145 (imm :type
'imm-byte
))
1147 (sb!disassem
:define-instruction-format
(ext-xmm-xmm/mem-imm
32
1149 '(:name
:tab reg
", " reg
/mem
" " imm
))
1150 (prefix :field
(byte 8 0))
1151 (x0f :field
(byte 8 8) :value
#x0f
)
1152 (op :field
(byte 8 16))
1153 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
1155 (reg :field
(byte 3 27) :type
'xmmreg
)
1156 (imm :type
'imm-byte
))
1158 (sb!disassem
:define-instruction-format
(ext-rex-xmm-xmm/mem-imm
40
1160 '(:name
:tab reg
", " reg
/mem
" " imm
))
1161 (prefix :field
(byte 8 0))
1162 (rex :field
(byte 4 12) :value
#b0100
)
1163 (wrxb :field
(byte 4 8) :type
'wrxb
)
1164 (x0f :field
(byte 8 16) :value
#x0f
)
1165 (op :field
(byte 8 24))
1166 (reg/mem
:fields
(list (byte 2 38) (byte 3 32))
1168 (reg :field
(byte 3 35) :type
'xmmreg
)
1169 (imm :type
'imm-byte
))
1171 (sb!disassem
:define-instruction-format
(string-op 8
1173 :default-printer
'(:name width
)))
1175 (sb!disassem
:define-instruction-format
(rex-string-op 16
1176 :include
'rex-simple
1177 :default-printer
'(:name width
)))
1179 (sb!disassem
:define-instruction-format
(short-cond-jump 16)
1180 (op :field
(byte 4 4))
1181 (cc :field
(byte 4 0) :type
'condition-code
)
1182 (label :field
(byte 8 8) :type
'displacement
))
1184 (sb!disassem
:define-instruction-format
(short-jump 16
1185 :default-printer
'(:name
:tab label
))
1186 (const :field
(byte 4 4) :value
#b1110
)
1187 (op :field
(byte 4 0))
1188 (label :field
(byte 8 8) :type
'displacement
))
1190 (sb!disassem
:define-instruction-format
(near-cond-jump 16)
1191 (op :fields
(list (byte 8 0) (byte 4 12)) :value
'(#b00001111
#b1000
))
1192 (cc :field
(byte 4 8) :type
'condition-code
)
1193 ;; The disassembler currently doesn't let you have an instruction > 32 bits
1194 ;; long, so we fake it by using a prefilter to read the offset.
1195 (label :type
'displacement
1196 :prefilter
(lambda (value dstate
)
1197 (declare (ignore value
)) ; always nil anyway
1198 (sb!disassem
:read-signed-suffix
32 dstate
))))
1200 (sb!disassem
:define-instruction-format
(near-jump 8
1201 :default-printer
'(:name
:tab label
))
1202 (op :field
(byte 8 0))
1203 ;; The disassembler currently doesn't let you have an instruction > 32 bits
1204 ;; long, so we fake it by using a prefilter to read the address.
1205 (label :type
'displacement
1206 :prefilter
(lambda (value dstate
)
1207 (declare (ignore value
)) ; always nil anyway
1208 (sb!disassem
:read-signed-suffix
32 dstate
))))
1211 (sb!disassem
:define-instruction-format
(cond-set 24
1212 :default-printer
'('set cc
:tab reg
/mem
))
1213 (prefix :field
(byte 8 0) :value
#b00001111
)
1214 (op :field
(byte 4 12) :value
#b1001
)
1215 (cc :field
(byte 4 8) :type
'condition-code
)
1216 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
1217 :type
'sized-byte-reg
/mem
)
1218 (reg :field
(byte 3 19) :value
#b000
))
1220 (sb!disassem
:define-instruction-format
(cond-move 24
1222 '('cmov cc
:tab reg
", " reg
/mem
))
1223 (prefix :field
(byte 8 0) :value
#b00001111
)
1224 (op :field
(byte 4 12) :value
#b0100
)
1225 (cc :field
(byte 4 8) :type
'condition-code
)
1226 (reg/mem
:fields
(list (byte 2 22) (byte 3 16))
1228 (reg :field
(byte 3 19) :type
'reg
))
1230 (sb!disassem
:define-instruction-format
(rex-cond-move 32
1232 '('cmov cc
:tab reg
", " reg
/mem
))
1233 (rex :field
(byte 4 4) :value
#b0100
)
1234 (wrxb :field
(byte 4 0) :type
'wrxb
)
1235 (prefix :field
(byte 8 8) :value
#b00001111
)
1236 (op :field
(byte 4 20) :value
#b0100
)
1237 (cc :field
(byte 4 16) :type
'condition-code
)
1238 (reg/mem
:fields
(list (byte 2 30) (byte 3 24))
1240 (reg :field
(byte 3 27) :type
'reg
))
1242 (sb!disassem
:define-instruction-format
(enter-format 32
1243 :default-printer
'(:name
1245 (:unless
(:constant
0)
1247 (op :field
(byte 8 0))
1248 (disp :field
(byte 16 8))
1249 (level :field
(byte 8 24)))
1251 ;;; Single byte instruction with an immediate byte argument.
1252 (sb!disassem
:define-instruction-format
(byte-imm 16
1253 :default-printer
'(:name
:tab code
))
1254 (op :field
(byte 8 0))
1255 (code :field
(byte 8 8)))
1257 ;;; Two byte instruction with an immediate byte argument.
1259 (sb!disassem
:define-instruction-format
(word-imm 24
1260 :default-printer
'(:name
:tab code
))
1261 (op :field
(byte 16 0))
1262 (code :field
(byte 8 16)))
1265 ;;;; primitive emitters
1267 (define-bitfield-emitter emit-word
16
1270 (define-bitfield-emitter emit-dword
32
1273 ;;; Most uses of dwords are as displacements or as immediate values in
1274 ;;; 64-bit operations. In these cases they are sign-extended to 64 bits.
1275 ;;; EMIT-DWORD is unsuitable there because it accepts values of type
1276 ;;; (OR (SIGNED-BYTE 32) (UNSIGNED-BYTE 32)), so we provide a more
1277 ;;; restricted emitter here.
1278 (defun emit-signed-dword (segment value
)
1279 (declare (type segment segment
)
1280 (type (signed-byte 32) value
))
1281 (declare (inline emit-dword
))
1282 (emit-dword segment value
))
1284 (define-bitfield-emitter emit-qword
64
1287 (define-bitfield-emitter emit-byte-with-reg
8
1288 (byte 5 3) (byte 3 0))
1290 (define-bitfield-emitter emit-mod-reg-r
/m-byte
8
1291 (byte 2 6) (byte 3 3) (byte 3 0))
1293 (define-bitfield-emitter emit-sib-byte
8
1294 (byte 2 6) (byte 3 3) (byte 3 0))
1296 (define-bitfield-emitter emit-rex-byte
8
1297 (byte 4 4) (byte 1 3) (byte 1 2) (byte 1 1) (byte 1 0))
1303 (defun emit-absolute-fixup (segment fixup
&optional quad-p
)
1304 (note-fixup segment
(if quad-p
:absolute64
:absolute
) fixup
)
1305 (let ((offset (fixup-offset fixup
)))
1306 (if (label-p offset
)
1307 (emit-back-patch segment
1309 (lambda (segment posn
)
1310 (declare (ignore posn
))
1311 (let ((val (- (+ (component-header-length)
1312 (or (label-position offset
)
1314 other-pointer-lowtag
)))
1316 (emit-qword segment val
)
1317 (emit-signed-dword segment val
)))))
1319 (emit-qword segment
(or offset
0))
1320 (emit-signed-dword segment
(or offset
0))))))
1322 (defun emit-relative-fixup (segment fixup
)
1323 (note-fixup segment
:relative fixup
)
1324 (emit-signed-dword segment
(or (fixup-offset fixup
) 0)))
1327 ;;;; the effective-address (ea) structure
1329 (defun reg-tn-encoding (tn)
1330 (declare (type tn tn
))
1331 ;; ea only has space for three bits of register number: regs r8
1332 ;; and up are selected by a REX prefix byte which caller is responsible
1333 ;; for having emitted where necessary already
1334 (ecase (sb-name (sc-sb (tn-sc tn
)))
1336 (let ((offset (mod (tn-offset tn
) 16)))
1337 (logior (ash (logand offset
1) 2)
1340 (mod (tn-offset tn
) 8))))
1342 (defstruct (ea (:constructor make-ea
(size &key base index scale disp
))
1344 ;; note that we can represent an EA with a QWORD size, but EMIT-EA
1345 ;; can't actually emit it on its own: caller also needs to emit REX
1347 (size nil
:type
(member :byte
:word
:dword
:qword
))
1348 (base nil
:type
(or tn null
))
1349 (index nil
:type
(or tn null
))
1350 (scale 1 :type
(member 1 2 4 8))
1351 (disp 0 :type
(or (unsigned-byte 32) (signed-byte 32) fixup
)))
1352 (def!method print-object
((ea ea
) stream
)
1353 (cond ((or *print-escape
* *print-readably
*)
1354 (print-unreadable-object (ea stream
:type t
)
1356 "~S~@[ base=~S~]~@[ index=~S~]~@[ scale=~S~]~@[ disp=~S~]"
1360 (let ((scale (ea-scale ea
)))
1361 (if (= scale
1) nil scale
))
1364 (format stream
"~A PTR [" (symbol-name (ea-size ea
)))
1366 (write-string (sb!c
::location-print-name
(ea-base ea
)) stream
)
1368 (write-string "+" stream
)))
1370 (write-string (sb!c
::location-print-name
(ea-index ea
)) stream
))
1371 (unless (= (ea-scale ea
) 1)
1372 (format stream
"*~A" (ea-scale ea
)))
1373 (typecase (ea-disp ea
)
1376 (format stream
"~@D" (ea-disp ea
)))
1378 (format stream
"+~A" (ea-disp ea
))))
1379 (write-char #\
] stream
))))
1381 (defun emit-constant-tn-rip (segment constant-tn reg
)
1382 ;; AMD64 doesn't currently have a code object register to use as a
1383 ;; base register for constant access. Instead we use RIP-relative
1384 ;; addressing. The offset from the SIMPLE-FUN-HEADER to the instruction
1385 ;; is passed to the backpatch callback. In addition we need the offset
1386 ;; from the start of the function header to the slot in the CODE-HEADER
1387 ;; that stores the constant. Since we don't know where the code header
1388 ;; starts, instead count backwards from the function header.
1389 (let* ((2comp (component-info *component-being-compiled
*))
1390 (constants (ir2-component-constants 2comp
))
1391 (len (length constants
))
1392 ;; Both CODE-HEADER and SIMPLE-FUN-HEADER are 16-byte aligned.
1393 ;; If there are an even amount of constants, there will be
1394 ;; an extra qword of padding before the function header, which
1395 ;; needs to be adjusted for. XXX: This will break if new slots
1396 ;; are added to the code header.
1397 (offset (* (- (+ len
(if (evenp len
)
1400 (tn-offset constant-tn
))
1402 ;; RIP-relative addressing
1403 (emit-mod-reg-r/m-byte segment
#b00 reg
#b101
)
1404 (emit-back-patch segment
1406 (lambda (segment posn
)
1407 ;; The addressing is relative to end of instruction,
1408 ;; i.e. the end of this dword. Hence the + 4.
1409 (emit-signed-dword segment
1410 (+ 4 (- (+ offset posn
)))))))
1413 (defun emit-label-rip (segment fixup reg
)
1414 (let ((label (fixup-offset fixup
)))
1415 ;; RIP-relative addressing
1416 (emit-mod-reg-r/m-byte segment
#b00 reg
#b101
)
1417 (emit-back-patch segment
1419 (lambda (segment posn
)
1420 (emit-signed-dword segment
(- (label-position label
)
1424 (defun emit-ea (segment thing reg
&optional allow-constants
)
1427 ;; this would be eleganter if we had a function that would create
1429 (ecase (sb-name (sc-sb (tn-sc thing
)))
1430 ((registers float-registers
)
1431 (emit-mod-reg-r/m-byte segment
#b11 reg
(reg-tn-encoding thing
)))
1433 ;; Convert stack tns into an index off RBP.
1434 (let ((disp (frame-byte-offset (tn-offset thing
))))
1435 (cond ((<= -
128 disp
127)
1436 (emit-mod-reg-r/m-byte segment
#b01 reg
#b101
)
1437 (emit-byte segment disp
))
1439 (emit-mod-reg-r/m-byte segment
#b10 reg
#b101
)
1440 (emit-signed-dword segment disp
)))))
1442 (unless allow-constants
1445 "Constant TNs can only be directly used in MOV, PUSH, and CMP."))
1446 (emit-constant-tn-rip segment thing reg
))))
1448 (let* ((base (ea-base thing
))
1449 (index (ea-index thing
))
1450 (scale (ea-scale thing
))
1451 (disp (ea-disp thing
))
1452 (mod (cond ((or (null base
)
1454 (not (= (reg-tn-encoding base
) #b101
))))
1456 ((and (fixnump disp
) (<= -
128 disp
127))
1460 (r/m
(cond (index #b100
)
1462 (t (reg-tn-encoding base
)))))
1463 (when (and (fixup-p disp
)
1464 (label-p (fixup-offset disp
)))
1467 (return-from emit-ea
(emit-ea segment disp reg allow-constants
)))
1468 (when (and (= mod
0) (= r
/m
#b101
))
1469 ;; this is rip-relative in amd64, so we'll use a sib instead
1470 (setf r
/m
#b100 scale
1))
1471 (emit-mod-reg-r/m-byte segment mod reg r
/m
)
1473 (let ((ss (1- (integer-length scale
)))
1474 (index (if (null index
)
1476 (let ((index (reg-tn-encoding index
)))
1478 (error "can't index off of ESP")
1480 (base (if (null base
)
1482 (reg-tn-encoding base
))))
1483 (emit-sib-byte segment ss index base
)))
1485 (emit-byte segment disp
))
1486 ((or (= mod
#b10
) (null base
))
1488 (emit-absolute-fixup segment disp
)
1489 (emit-signed-dword segment disp
))))))
1491 (typecase (fixup-offset thing
)
1493 (emit-label-rip segment thing reg
))
1495 (emit-mod-reg-r/m-byte segment
#b00 reg
#b100
)
1496 (emit-sib-byte segment
0 #b100
#b101
)
1497 (emit-absolute-fixup segment thing
))))))
1499 (defun byte-reg-p (thing)
1501 (eq (sb-name (sc-sb (tn-sc thing
))) 'registers
)
1502 (member (sc-name (tn-sc thing
)) *byte-sc-names
*)
1505 (defun byte-ea-p (thing)
1507 (ea (eq (ea-size thing
) :byte
))
1509 (and (member (sc-name (tn-sc thing
)) *byte-sc-names
*) t
))
1512 (defun word-reg-p (thing)
1514 (eq (sb-name (sc-sb (tn-sc thing
))) 'registers
)
1515 (member (sc-name (tn-sc thing
)) *word-sc-names
*)
1518 (defun word-ea-p (thing)
1520 (ea (eq (ea-size thing
) :word
))
1521 (tn (and (member (sc-name (tn-sc thing
)) *word-sc-names
*) t
))
1524 (defun dword-reg-p (thing)
1526 (eq (sb-name (sc-sb (tn-sc thing
))) 'registers
)
1527 (member (sc-name (tn-sc thing
)) *dword-sc-names
*)
1530 (defun dword-ea-p (thing)
1532 (ea (eq (ea-size thing
) :dword
))
1534 (and (member (sc-name (tn-sc thing
)) *dword-sc-names
*) t
))
1537 (defun qword-reg-p (thing)
1539 (eq (sb-name (sc-sb (tn-sc thing
))) 'registers
)
1540 (member (sc-name (tn-sc thing
)) *qword-sc-names
*)
1543 (defun qword-ea-p (thing)
1545 (ea (eq (ea-size thing
) :qword
))
1547 (and (member (sc-name (tn-sc thing
)) *qword-sc-names
*) t
))
1550 ;;; Return true if THING is a general-purpose register TN.
1551 (defun register-p (thing)
1553 (eq (sb-name (sc-sb (tn-sc thing
))) 'registers
)))
1555 (defun accumulator-p (thing)
1556 (and (register-p thing
)
1557 (= (tn-offset thing
) 0)))
1559 ;;; Return true if THING is an XMM register TN.
1560 (defun xmm-register-p (thing)
1562 (eq (sb-name (sc-sb (tn-sc thing
))) 'float-registers
)))
1567 (def!constant
+operand-size-prefix-byte
+ #b01100110
)
1569 (defun maybe-emit-operand-size-prefix (segment size
)
1570 (unless (or (eq size
:byte
)
1571 (eq size
:qword
) ; REX prefix handles this
1572 (eq size
+default-operand-size
+))
1573 (emit-byte segment
+operand-size-prefix-byte
+)))
1575 ;;; A REX prefix must be emitted if at least one of the following
1576 ;;; conditions is true:
1577 ;; 1. The operand size is :QWORD and the default operand size of the
1578 ;; instruction is not :QWORD.
1579 ;;; 2. The instruction references an extended register.
1580 ;;; 3. The instruction references one of the byte registers SIL, DIL,
1583 ;;; Emit a REX prefix if necessary. OPERAND-SIZE is used to determine
1584 ;;; whether to set REX.W. Callers pass it explicitly as :DO-NOT-SET if
1585 ;;; this should not happen, for example because the instruction's
1586 ;;; default operand size is qword. R, X and B are NIL or TNs specifying
1587 ;;; registers the encodings of which are extended with the REX.R, REX.X
1588 ;;; and REX.B bit, respectively. To determine whether one of the byte
1589 ;;; registers is used that can only be accessed using a REX prefix, we
1590 ;;; need only to test R and B, because X is only used for the index
1591 ;;; register of an effective address and therefore never byte-sized.
1592 ;;; For R we can avoid to calculate the size of the TN because it is
1593 ;;; always OPERAND-SIZE. The size of B must be calculated here because
1594 ;;; B can be address-sized (if it is the base register of an effective
1595 ;;; address), of OPERAND-SIZE (if the instruction operates on two
1596 ;;; registers) or of some different size (in the instructions that
1597 ;;; combine arguments of different sizes: MOVZX, MOVSX, MOVSXD and
1598 ;;; several SSE instructions, e.g. CVTSD2SI). We don't distinguish
1599 ;;; between general-purpose and floating point registers for this cause
1600 ;;; because only general-purpose registers can be byte-sized at all.
1601 (defun maybe-emit-rex-prefix (segment operand-size r x b
)
1602 (declare (type (member nil
:byte
:word
:dword
:qword
:do-not-set
)
1604 (type (or null tn
) r x b
))
1606 (if (and r
(> (tn-offset r
)
1607 ;; offset of r8 is 16, offset of xmm8 is 8
1608 (if (eq (sb-name (sc-sb (tn-sc r
)))
1615 ;; Assuming R is a TN describing a general-purpose
1616 ;; register, return true if it references register
1618 (<= 8 (tn-offset r
) 15)))
1619 (let ((rex-w (if (eq operand-size
:qword
) 1 0))
1623 (when (or (not (zerop (logior rex-w rex-r rex-x rex-b
)))
1625 (eq operand-size
:byte
)
1628 (eq (operand-size b
) :byte
)
1630 (emit-rex-byte segment
#b0100 rex-w rex-r rex-x rex-b
)))))
1632 ;;; Emit a REX prefix if necessary. The operand size is determined from
1633 ;;; THING or can be overwritten by OPERAND-SIZE. This and REG are always
1634 ;;; passed to MAYBE-EMIT-REX-PREFIX. Additionally, if THING is an EA we
1635 ;;; pass its index and base registers, if it is a register TN, we pass
1637 ;;; In contrast to EMIT-EA above, neither stack TNs nor fixups need to
1638 ;;; be treated specially here: If THING is a stack TN, neither it nor
1639 ;;; any of its components are passed to MAYBE-EMIT-REX-PREFIX which
1640 ;;; works correctly because stack references always use RBP as the base
1641 ;;; register and never use an index register so no extended registers
1642 ;;; need to be accessed. Fixups are assembled using an addressing mode
1643 ;;; of displacement-only or RIP-plus-displacement (see EMIT-EA), so may
1644 ;;; not reference an extended register. The displacement-only addressing
1645 ;;; mode requires that REX.X is 0, which is ensured here.
1646 (defun maybe-emit-rex-for-ea (segment thing reg
&key operand-size
)
1647 (declare (type (or ea tn fixup
) thing
)
1648 (type (or null tn
) reg
)
1649 (type (member nil
:byte
:word
:dword
:qword
:do-not-set
)
1651 (let ((ea-p (ea-p thing
)))
1652 (maybe-emit-rex-prefix segment
1653 (or operand-size
(operand-size thing
))
1655 (and ea-p
(ea-index thing
))
1656 (cond (ea-p (ea-base thing
))
1658 (member (sb-name (sc-sb (tn-sc thing
)))
1659 '(float-registers registers
)))
1663 (defun operand-size (thing)
1666 ;; FIXME: might as well be COND instead of having to use #. readmacro
1667 ;; to hack up the code
1668 (case (sc-name (tn-sc thing
))
1677 ;; added by jrd: float-registers is a separate size (?)
1678 ;; The only place in the code where we are called with THING
1679 ;; being a float-register is in MAYBE-EMIT-REX-PREFIX when it
1680 ;; checks whether THING is a byte register. Thus our result in
1681 ;; these cases could as well be :dword and :qword. I leave it as
1682 ;; :float and :double which is more likely to trigger an aver
1683 ;; instead of silently doing the wrong thing in case this
1684 ;; situation should change. Lutz Euler, 2005-10-23.
1687 (#.
*double-sc-names
*
1689 (#.
*complex-sc-names
*
1692 (error "can't tell the size of ~S ~S" thing
(sc-name (tn-sc thing
))))))
1696 ;; GNA. Guess who spelt "flavor" correctly first time round?
1697 ;; There's a strong argument in my mind to change all uses of
1698 ;; "flavor" to "kind": and similarly with some misguided uses of
1699 ;; "type" here and there. -- CSR, 2005-01-06.
1700 (case (fixup-flavor thing
)
1701 ((:foreign-dataref
) :qword
)))
1705 (defun matching-operand-size (dst src
)
1706 (let ((dst-size (operand-size dst
))
1707 (src-size (operand-size src
)))
1710 (if (eq dst-size src-size
)
1712 (error "size mismatch: ~S is a ~S and ~S is a ~S."
1713 dst dst-size src src-size
))
1717 (error "can't tell the size of either ~S or ~S" dst src
)))))
1719 ;;; Except in a very few cases (MOV instructions A1, A3 and B8 - BF)
1720 ;;; we expect dword data bytes even when 64 bit work is being done.
1721 ;;; But A1 and A3 are currently unused and B8 - BF use EMIT-QWORD
1722 ;;; directly, so we emit all quad constants as dwords, additionally
1723 ;;; making sure that they survive the sign-extension to 64 bits
1725 (defun emit-sized-immediate (segment size value
)
1728 (emit-byte segment value
))
1730 (emit-word segment value
))
1732 (emit-dword segment value
))
1734 (emit-signed-dword segment value
))))
1736 ;;;; general data transfer
1738 ;;; This is the part of the MOV instruction emitter that does moving
1739 ;;; of an immediate value into a qword register. We go to some length
1740 ;;; to achieve the shortest possible encoding.
1741 (defun emit-immediate-move-to-qword-register (segment dst src
)
1742 (declare (type integer src
))
1743 (cond ((typep src
'(unsigned-byte 32))
1744 ;; We use the B8 - BF encoding with an operand size of 32 bits
1745 ;; here and let the implicit zero-extension fill the upper half
1746 ;; of the 64-bit destination register. Instruction size: five
1747 ;; or six bytes. (A REX prefix will be emitted only if the
1748 ;; destination is an extended register.)
1749 (maybe-emit-rex-prefix segment
:dword nil nil dst
)
1750 (emit-byte-with-reg segment
#b10111
(reg-tn-encoding dst
))
1751 (emit-dword segment src
))
1753 (maybe-emit-rex-prefix segment
:qword nil nil dst
)
1754 (cond ((typep src
'(signed-byte 32))
1755 ;; Use the C7 encoding that takes a 32-bit immediate and
1756 ;; sign-extends it to 64 bits. Instruction size: seven
1758 (emit-byte segment
#b11000111
)
1759 (emit-mod-reg-r/m-byte segment
#b11
#b000
1760 (reg-tn-encoding dst
))
1761 (emit-signed-dword segment src
))
1762 ((<= (- (expt 2 64) (expt 2 31))
1765 ;; This triggers on positive integers of 64 bits length
1766 ;; with the most significant 33 bits being 1. We use the
1767 ;; same encoding as in the previous clause.
1768 (emit-byte segment
#b11000111
)
1769 (emit-mod-reg-r/m-byte segment
#b11
#b000
1770 (reg-tn-encoding dst
))
1771 (emit-signed-dword segment
(- src
(expt 2 64))))
1773 ;; We need a full 64-bit immediate. Instruction size:
1775 (emit-byte-with-reg segment
#b10111
(reg-tn-encoding dst
))
1776 (emit-qword segment src
))))))
1778 (define-instruction mov
(segment dst src
)
1779 ;; immediate to register
1780 (:printer reg
((op #b1011
) (imm nil
:type
'signed-imm-data
))
1781 '(:name
:tab reg
", " imm
))
1782 (:printer rex-reg
((op #b1011
) (imm nil
:type
'signed-imm-data-upto-qword
))
1783 '(:name
:tab reg
", " imm
))
1784 ;; absolute mem to/from accumulator
1785 (:printer simple-dir
((op #b101000
) (imm nil
:type
'imm-addr
))
1786 `(:name
:tab
,(swap-if 'dir
'accum
", " '("[" imm
"]"))))
1787 ;; register to/from register/memory
1788 (:printer reg-reg
/mem-dir
((op #b100010
)))
1789 (:printer rex-reg-reg
/mem-dir
((op #b100010
)))
1790 (:printer x66-reg-reg
/mem-dir
((op #b100010
)))
1791 (:printer x66-rex-reg-reg
/mem-dir
((op #b100010
)))
1792 ;; immediate to register/memory
1793 (:printer reg
/mem-imm
((op '(#b1100011
#b000
))))
1794 (:printer rex-reg
/mem-imm
((op '(#b1100011
#b000
))))
1797 (let ((size (matching-operand-size dst src
)))
1798 (maybe-emit-operand-size-prefix segment size
)
1799 (cond ((register-p dst
)
1800 (cond ((integerp src
)
1801 (cond ((eq size
:qword
)
1802 (emit-immediate-move-to-qword-register segment
1805 (maybe-emit-rex-prefix segment size nil nil dst
)
1806 (emit-byte-with-reg segment
1810 (reg-tn-encoding dst
))
1811 (emit-sized-immediate segment size src
))))
1813 (maybe-emit-rex-for-ea segment src dst
)
1818 (emit-ea segment src
(reg-tn-encoding dst
) t
))))
1820 ;; C7 only deals with 32 bit immediates even if the
1821 ;; destination is a 64-bit location. The value is
1822 ;; sign-extended in this case.
1823 (maybe-emit-rex-for-ea segment dst nil
)
1824 (emit-byte segment
(if (eq size
:byte
) #b11000110
#b11000111
))
1825 (emit-ea segment dst
#b000
)
1826 (emit-sized-immediate segment size src
))
1828 (maybe-emit-rex-for-ea segment dst src
)
1829 (emit-byte segment
(if (eq size
:byte
) #b10001000
#b10001001
))
1830 (emit-ea segment dst
(reg-tn-encoding src
)))
1832 ;; Generally we can't MOV a fixupped value into an EA, since
1833 ;; MOV on non-registers can only take a 32-bit immediate arg.
1834 ;; Make an exception for :FOREIGN fixups (pretty much just
1835 ;; the runtime asm, since other foreign calls go through the
1836 ;; the linkage table) and for linkage table references, since
1837 ;; these should always end up in low memory.
1838 (aver (or (eq (fixup-flavor src
) :foreign
)
1839 (eq (fixup-flavor src
) :foreign-dataref
)
1840 (eq (ea-size dst
) :dword
)))
1841 (maybe-emit-rex-for-ea segment dst nil
)
1842 (emit-byte segment
#b11000111
)
1843 (emit-ea segment dst
#b000
)
1844 (emit-absolute-fixup segment src
))
1846 (error "bogus arguments to MOV: ~S ~S" dst src
))))))
1848 (defun emit-move-with-extension (segment dst src signed-p
)
1849 (aver (register-p dst
))
1850 (let ((dst-size (operand-size dst
))
1851 (src-size (operand-size src
))
1852 (opcode (if signed-p
#b10111110
#b10110110
)))
1855 (aver (eq src-size
:byte
))
1856 (maybe-emit-operand-size-prefix segment
:word
)
1857 ;; REX prefix is needed if SRC is SIL, DIL, SPL or BPL.
1858 (maybe-emit-rex-for-ea segment src dst
:operand-size
:word
)
1859 (emit-byte segment
#b00001111
)
1860 (emit-byte segment opcode
)
1861 (emit-ea segment src
(reg-tn-encoding dst
)))
1865 (maybe-emit-rex-for-ea segment src dst
:operand-size dst-size
)
1866 (emit-byte segment
#b00001111
)
1867 (emit-byte segment opcode
)
1868 (emit-ea segment src
(reg-tn-encoding dst
)))
1870 (maybe-emit-rex-for-ea segment src dst
:operand-size dst-size
)
1871 (emit-byte segment
#b00001111
)
1872 (emit-byte segment
(logior opcode
1))
1873 (emit-ea segment src
(reg-tn-encoding dst
)))
1875 (aver (eq dst-size
:qword
))
1876 ;; dst is in reg, src is in modrm
1877 (let ((ea-p (ea-p src
)))
1878 (maybe-emit-rex-prefix segment
(if signed-p
:qword
:dword
) dst
1879 (and ea-p
(ea-index src
))
1880 (cond (ea-p (ea-base src
))
1883 (emit-byte segment
#x63
) ;movsxd
1884 ;;(emit-byte segment opcode)
1885 (emit-ea segment src
(reg-tn-encoding dst
)))))))))
1887 (define-instruction movsx
(segment dst src
)
1888 (:printer ext-reg-reg
/mem-no-width
1889 ((op #b10111110
) (reg/mem nil
:type
'sized-byte-reg
/mem
)))
1890 (:printer rex-ext-reg-reg
/mem-no-width
1891 ((op #b10111110
) (reg/mem nil
:type
'sized-byte-reg
/mem
)))
1892 (:printer ext-reg-reg
/mem-no-width
1893 ((op #b10111111
) (reg/mem nil
:type
'sized-word-reg
/mem
)))
1894 (:printer rex-ext-reg-reg
/mem-no-width
1895 ((op #b10111111
) (reg/mem nil
:type
'sized-word-reg
/mem
)))
1896 (:emitter
(emit-move-with-extension segment dst src
:signed
)))
1898 (define-instruction movzx
(segment dst src
)
1899 (:printer ext-reg-reg
/mem-no-width
1900 ((op #b10110110
) (reg/mem nil
:type
'sized-byte-reg
/mem
)))
1901 (:printer rex-ext-reg-reg
/mem-no-width
1902 ((op #b10110110
) (reg/mem nil
:type
'sized-byte-reg
/mem
)))
1903 (:printer ext-reg-reg
/mem-no-width
1904 ((op #b10110111
) (reg/mem nil
:type
'sized-word-reg
/mem
)))
1905 (:printer rex-ext-reg-reg
/mem-no-width
1906 ((op #b10110111
) (reg/mem nil
:type
'sized-word-reg
/mem
)))
1907 (:emitter
(emit-move-with-extension segment dst src nil
)))
1909 ;;; The regular use of MOVSXD is with an operand size of :qword. This
1910 ;;; sign-extends the dword source into the qword destination register.
1911 ;;; If the operand size is :dword the instruction zero-extends the dword
1912 ;;; source into the qword destination register, i.e. it does the same as
1913 ;;; a dword MOV into a register.
1914 (define-instruction movsxd
(segment dst src
)
1915 (:printer reg-reg
/mem
((op #b0110001
) (width 1)
1916 (reg/mem nil
:type
'sized-dword-reg
/mem
)))
1917 (:printer rex-reg-reg
/mem
((op #b0110001
) (width 1)
1918 (reg/mem nil
:type
'sized-dword-reg
/mem
)))
1919 (:emitter
(emit-move-with-extension segment dst src
:signed
)))
1921 ;;; this is not a real amd64 instruction, of course
1922 (define-instruction movzxd
(segment dst src
)
1923 ; (:printer reg-reg/mem ((op #x63) (reg nil :type 'reg)))
1924 (:emitter
(emit-move-with-extension segment dst src nil
)))
1926 (define-instruction push
(segment src
)
1928 (:printer reg-no-width-default-qword
((op #b01010
)))
1929 (:printer rex-reg-no-width-default-qword
((op #b01010
)))
1931 (:printer reg
/mem-default-qword
((op '(#b11111111
#b110
))))
1932 (:printer rex-reg
/mem-default-qword
((op '(#b11111111
#b110
))))
1934 (:printer byte
((op #b01101010
) (imm nil
:type
'signed-imm-byte
))
1936 (:printer byte
((op #b01101000
)
1937 (imm nil
:type
'signed-imm-data-default-qword
))
1939 ;; ### segment registers?
1942 (cond ((integerp src
)
1943 (cond ((<= -
128 src
127)
1944 (emit-byte segment
#b01101010
)
1945 (emit-byte segment src
))
1947 ;; A REX-prefix is not needed because the operand size
1948 ;; defaults to 64 bits. The size of the immediate is 32
1949 ;; bits and it is sign-extended.
1950 (emit-byte segment
#b01101000
)
1951 (emit-signed-dword segment src
))))
1953 (let ((size (operand-size src
)))
1954 (aver (or (eq size
:qword
) (eq size
:word
)))
1955 (maybe-emit-operand-size-prefix segment size
)
1956 (maybe-emit-rex-for-ea segment src nil
:operand-size
:do-not-set
)
1957 (cond ((register-p src
)
1958 (emit-byte-with-reg segment
#b01010
(reg-tn-encoding src
)))
1960 (emit-byte segment
#b11111111
)
1961 (emit-ea segment src
#b110 t
))))))))
1963 (define-instruction pop
(segment dst
)
1964 (:printer reg-no-width-default-qword
((op #b01011
)))
1965 (:printer rex-reg-no-width-default-qword
((op #b01011
)))
1966 (:printer reg
/mem-default-qword
((op '(#b10001111
#b000
))))
1967 (:printer rex-reg
/mem-default-qword
((op '(#b10001111
#b000
))))
1969 (let ((size (operand-size dst
)))
1970 (aver (or (eq size
:qword
) (eq size
:word
)))
1971 (maybe-emit-operand-size-prefix segment size
)
1972 (maybe-emit-rex-for-ea segment dst nil
:operand-size
:do-not-set
)
1973 (cond ((register-p dst
)
1974 (emit-byte-with-reg segment
#b01011
(reg-tn-encoding dst
)))
1976 (emit-byte segment
#b10001111
)
1977 (emit-ea segment dst
#b000
))))))
1979 (define-instruction xchg
(segment operand1 operand2
)
1980 ;; Register with accumulator.
1981 (:printer reg-no-width
((op #b10010
)) '(:name
:tab accum
", " reg
))
1982 ;; Register/Memory with Register.
1983 (:printer reg-reg
/mem
((op #b1000011
)))
1984 (:printer rex-reg-reg
/mem
((op #b1000011
)))
1986 (let ((size (matching-operand-size operand1 operand2
)))
1987 (maybe-emit-operand-size-prefix segment size
)
1988 (labels ((xchg-acc-with-something (acc something
)
1989 (if (and (not (eq size
:byte
)) (register-p something
))
1991 (maybe-emit-rex-for-ea segment acc something
)
1992 (emit-byte-with-reg segment
1994 (reg-tn-encoding something
)))
1995 (xchg-reg-with-something acc something
)))
1996 (xchg-reg-with-something (reg something
)
1997 (maybe-emit-rex-for-ea segment something reg
)
1998 (emit-byte segment
(if (eq size
:byte
) #b10000110
#b10000111
))
1999 (emit-ea segment something
(reg-tn-encoding reg
))))
2000 (cond ((accumulator-p operand1
)
2001 (xchg-acc-with-something operand1 operand2
))
2002 ((accumulator-p operand2
)
2003 (xchg-acc-with-something operand2 operand1
))
2004 ((register-p operand1
)
2005 (xchg-reg-with-something operand1 operand2
))
2006 ((register-p operand2
)
2007 (xchg-reg-with-something operand2 operand1
))
2009 (error "bogus args to XCHG: ~S ~S" operand1 operand2
)))))))
2011 (define-instruction lea
(segment dst src
)
2012 (:printer rex-reg-reg
/mem
((op #b1000110
)))
2013 (:printer reg-reg
/mem
((op #b1000110
) (width 1)))
2015 (aver (or (dword-reg-p dst
) (qword-reg-p dst
)))
2016 (maybe-emit-rex-for-ea segment src dst
2017 :operand-size
:qword
)
2018 (emit-byte segment
#b10001101
)
2019 (emit-ea segment src
(reg-tn-encoding dst
))))
2021 (define-instruction cmpxchg
(segment dst src
&optional prefix
)
2022 ;; Register/Memory with Register.
2023 (:printer ext-reg-reg
/mem
((op #b1011000
)) '(:name
:tab reg
/mem
", " reg
))
2025 (aver (register-p src
))
2026 (emit-prefix segment prefix
)
2027 (let ((size (matching-operand-size src dst
)))
2028 (maybe-emit-operand-size-prefix segment size
)
2029 (maybe-emit-rex-for-ea segment dst src
)
2030 (emit-byte segment
#b00001111
)
2031 (emit-byte segment
(if (eq size
:byte
) #b10110000
#b10110001
))
2032 (emit-ea segment dst
(reg-tn-encoding src
)))))
2035 ;;;; flag control instructions
2037 ;;; CLC -- Clear Carry Flag.
2038 (define-instruction clc
(segment)
2039 (:printer byte
((op #b11111000
)))
2041 (emit-byte segment
#b11111000
)))
2043 ;;; CLD -- Clear Direction Flag.
2044 (define-instruction cld
(segment)
2045 (:printer byte
((op #b11111100
)))
2047 (emit-byte segment
#b11111100
)))
2049 ;;; CLI -- Clear Iterrupt Enable Flag.
2050 (define-instruction cli
(segment)
2051 (:printer byte
((op #b11111010
)))
2053 (emit-byte segment
#b11111010
)))
2055 ;;; CMC -- Complement Carry Flag.
2056 (define-instruction cmc
(segment)
2057 (:printer byte
((op #b11110101
)))
2059 (emit-byte segment
#b11110101
)))
2061 ;;; LAHF -- Load AH into flags.
2062 (define-instruction lahf
(segment)
2063 (:printer byte
((op #b10011111
)))
2065 (emit-byte segment
#b10011111
)))
2067 ;;; POPF -- Pop flags.
2068 (define-instruction popf
(segment)
2069 (:printer byte
((op #b10011101
)))
2071 (emit-byte segment
#b10011101
)))
2073 ;;; PUSHF -- push flags.
2074 (define-instruction pushf
(segment)
2075 (:printer byte
((op #b10011100
)))
2077 (emit-byte segment
#b10011100
)))
2079 ;;; SAHF -- Store AH into flags.
2080 (define-instruction sahf
(segment)
2081 (:printer byte
((op #b10011110
)))
2083 (emit-byte segment
#b10011110
)))
2085 ;;; STC -- Set Carry Flag.
2086 (define-instruction stc
(segment)
2087 (:printer byte
((op #b11111001
)))
2089 (emit-byte segment
#b11111001
)))
2091 ;;; STD -- Set Direction Flag.
2092 (define-instruction std
(segment)
2093 (:printer byte
((op #b11111101
)))
2095 (emit-byte segment
#b11111101
)))
2097 ;;; STI -- Set Interrupt Enable Flag.
2098 (define-instruction sti
(segment)
2099 (:printer byte
((op #b11111011
)))
2101 (emit-byte segment
#b11111011
)))
2105 (defun emit-random-arith-inst (name segment dst src opcode
2106 &optional allow-constants
)
2107 (let ((size (matching-operand-size dst src
)))
2108 (maybe-emit-operand-size-prefix segment size
)
2111 (cond ((and (not (eq size
:byte
)) (<= -
128 src
127))
2112 (maybe-emit-rex-for-ea segment dst nil
)
2113 (emit-byte segment
#b10000011
)
2114 (emit-ea segment dst opcode allow-constants
)
2115 (emit-byte segment src
))
2116 ((accumulator-p dst
)
2117 (maybe-emit-rex-for-ea segment dst nil
)
2124 (emit-sized-immediate segment size src
))
2126 (maybe-emit-rex-for-ea segment dst nil
)
2127 (emit-byte segment
(if (eq size
:byte
) #b10000000
#b10000001
))
2128 (emit-ea segment dst opcode allow-constants
)
2129 (emit-sized-immediate segment size src
))))
2131 (maybe-emit-rex-for-ea segment dst src
)
2135 (if (eq size
:byte
) #b00000000
#b00000001
)))
2136 (emit-ea segment dst
(reg-tn-encoding src
) allow-constants
))
2138 (maybe-emit-rex-for-ea segment src dst
)
2142 (if (eq size
:byte
) #b00000010
#b00000011
)))
2143 (emit-ea segment src
(reg-tn-encoding dst
) allow-constants
))
2145 (error "bogus operands to ~A" name
)))))
2147 (eval-when (:compile-toplevel
:execute
)
2148 (defun arith-inst-printer-list (subop)
2149 `((accum-imm ((op ,(dpb subop
(byte 3 2) #b0000010
))))
2150 (rex-accum-imm ((op ,(dpb subop
(byte 3 2) #b0000010
))))
2151 (reg/mem-imm
((op (#b1000000
,subop
))))
2152 (rex-reg/mem-imm
((op (#b1000000
,subop
))))
2153 ;; The redundant encoding #x82 is invalid in 64-bit mode,
2154 ;; therefore we force WIDTH to 1.
2155 (reg/mem-imm
((op (#b1000001
,subop
)) (width 1)
2156 (imm nil
:type signed-imm-byte
)))
2157 (rex-reg/mem-imm
((op (#b1000001
,subop
)) (width 1)
2158 (imm nil
:type signed-imm-byte
)))
2159 (reg-reg/mem-dir
((op ,(dpb subop
(byte 3 1) #b000000
))))
2160 (rex-reg-reg/mem-dir
((op ,(dpb subop
(byte 3 1) #b000000
))))))
2163 (define-instruction add
(segment dst src
&optional prefix
)
2164 (:printer-list
(arith-inst-printer-list #b000
))
2166 (emit-prefix segment prefix
)
2167 (emit-random-arith-inst "ADD" segment dst src
#b000
)))
2169 (define-instruction adc
(segment dst src
)
2170 (:printer-list
(arith-inst-printer-list #b010
))
2171 (:emitter
(emit-random-arith-inst "ADC" segment dst src
#b010
)))
2173 (define-instruction sub
(segment dst src
)
2174 (:printer-list
(arith-inst-printer-list #b101
))
2175 (:emitter
(emit-random-arith-inst "SUB" segment dst src
#b101
)))
2177 (define-instruction sbb
(segment dst src
)
2178 (:printer-list
(arith-inst-printer-list #b011
))
2179 (:emitter
(emit-random-arith-inst "SBB" segment dst src
#b011
)))
2181 (define-instruction cmp
(segment dst src
)
2182 (:printer-list
(arith-inst-printer-list #b111
))
2183 (:emitter
(emit-random-arith-inst "CMP" segment dst src
#b111 t
)))
2185 ;;; The one-byte encodings for INC and DEC are used as REX prefixes
2186 ;;; in 64-bit mode so we always use the two-byte form.
2187 (define-instruction inc
(segment dst
)
2188 (:printer reg
/mem
((op '(#b1111111
#b000
))))
2189 (:printer rex-reg
/mem
((op '(#b1111111
#b000
))))
2191 (let ((size (operand-size dst
)))
2192 (maybe-emit-operand-size-prefix segment size
)
2193 (maybe-emit-rex-for-ea segment dst nil
)
2194 (emit-byte segment
(if (eq size
:byte
) #b11111110
#b11111111
))
2195 (emit-ea segment dst
#b000
))))
2197 (define-instruction dec
(segment dst
)
2198 (:printer reg
/mem
((op '(#b1111111
#b001
))))
2199 (:printer rex-reg
/mem
((op '(#b1111111
#b001
))))
2201 (let ((size (operand-size dst
)))
2202 (maybe-emit-operand-size-prefix segment size
)
2203 (maybe-emit-rex-for-ea segment dst nil
)
2204 (emit-byte segment
(if (eq size
:byte
) #b11111110
#b11111111
))
2205 (emit-ea segment dst
#b001
))))
2207 (define-instruction neg
(segment dst
)
2208 (:printer reg
/mem
((op '(#b1111011
#b011
))))
2209 (:printer rex-reg
/mem
((op '(#b1111011
#b011
))))
2211 (let ((size (operand-size dst
)))
2212 (maybe-emit-operand-size-prefix segment size
)
2213 (maybe-emit-rex-for-ea segment dst nil
)
2214 (emit-byte segment
(if (eq size
:byte
) #b11110110
#b11110111
))
2215 (emit-ea segment dst
#b011
))))
2217 (define-instruction mul
(segment dst src
)
2218 (:printer accum-reg
/mem
((op '(#b1111011
#b100
))))
2219 (:printer rex-accum-reg
/mem
((op '(#b1111011
#b100
))))
2221 (let ((size (matching-operand-size dst src
)))
2222 (aver (accumulator-p dst
))
2223 (maybe-emit-operand-size-prefix segment size
)
2224 (maybe-emit-rex-for-ea segment src nil
)
2225 (emit-byte segment
(if (eq size
:byte
) #b11110110
#b11110111
))
2226 (emit-ea segment src
#b100
))))
2228 (define-instruction imul
(segment dst
&optional src1 src2
)
2229 (:printer accum-reg
/mem
((op '(#b1111011
#b101
))))
2230 (:printer rex-accum-reg
/mem
((op '(#b1111011
#b101
))))
2231 (:printer ext-reg-reg
/mem-no-width
((op #b10101111
)))
2232 (:printer rex-ext-reg-reg
/mem-no-width
((op #b10101111
)))
2233 (:printer reg-reg
/mem
((op #b0110100
) (width 1)
2234 (imm nil
:type
'signed-imm-data
))
2235 '(:name
:tab reg
", " reg
/mem
", " imm
))
2236 (:printer rex-reg-reg
/mem
((op #b0110100
) (width 1)
2237 (imm nil
:type
'signed-imm-data
))
2238 '(:name
:tab reg
", " reg
/mem
", " imm
))
2239 (:printer reg-reg
/mem
((op #b0110101
) (width 1)
2240 (imm nil
:type
'signed-imm-byte
))
2241 '(:name
:tab reg
", " reg
/mem
", " imm
))
2242 (:printer rex-reg-reg
/mem
((op #b0110101
) (width 1)
2243 (imm nil
:type
'signed-imm-byte
))
2244 '(:name
:tab reg
", " reg
/mem
", " imm
))
2246 (flet ((r/m-with-immed-to-reg
(reg r
/m immed
)
2247 (let* ((size (matching-operand-size reg r
/m
))
2248 (sx (and (not (eq size
:byte
)) (<= -
128 immed
127))))
2249 (maybe-emit-operand-size-prefix segment size
)
2250 (maybe-emit-rex-for-ea segment r
/m reg
)
2251 (emit-byte segment
(if sx
#b01101011
#b01101001
))
2252 (emit-ea segment r
/m
(reg-tn-encoding reg
))
2254 (emit-byte segment immed
)
2255 (emit-sized-immediate segment size immed
)))))
2257 (r/m-with-immed-to-reg dst src1 src2
))
2260 (r/m-with-immed-to-reg dst dst src1
)
2261 (let ((size (matching-operand-size dst src1
)))
2262 (maybe-emit-operand-size-prefix segment size
)
2263 (maybe-emit-rex-for-ea segment src1 dst
)
2264 (emit-byte segment
#b00001111
)
2265 (emit-byte segment
#b10101111
)
2266 (emit-ea segment src1
(reg-tn-encoding dst
)))))
2268 (let ((size (operand-size dst
)))
2269 (maybe-emit-operand-size-prefix segment size
)
2270 (maybe-emit-rex-for-ea segment dst nil
)
2271 (emit-byte segment
(if (eq size
:byte
) #b11110110
#b11110111
))
2272 (emit-ea segment dst
#b101
)))))))
2274 (define-instruction div
(segment dst src
)
2275 (:printer accum-reg
/mem
((op '(#b1111011
#b110
))))
2276 (:printer rex-accum-reg
/mem
((op '(#b1111011
#b110
))))
2278 (let ((size (matching-operand-size dst src
)))
2279 (aver (accumulator-p dst
))
2280 (maybe-emit-operand-size-prefix segment size
)
2281 (maybe-emit-rex-for-ea segment src nil
)
2282 (emit-byte segment
(if (eq size
:byte
) #b11110110
#b11110111
))
2283 (emit-ea segment src
#b110
))))
2285 (define-instruction idiv
(segment dst src
)
2286 (:printer accum-reg
/mem
((op '(#b1111011
#b111
))))
2287 (:printer rex-accum-reg
/mem
((op '(#b1111011
#b111
))))
2289 (let ((size (matching-operand-size dst src
)))
2290 (aver (accumulator-p dst
))
2291 (maybe-emit-operand-size-prefix segment size
)
2292 (maybe-emit-rex-for-ea segment src nil
)
2293 (emit-byte segment
(if (eq size
:byte
) #b11110110
#b11110111
))
2294 (emit-ea segment src
#b111
))))
2296 (define-instruction bswap
(segment dst
)
2297 (:printer ext-reg-no-width
((op #b11001
)))
2299 (let ((size (operand-size dst
)))
2300 (maybe-emit-rex-prefix segment size nil nil dst
)
2301 (emit-byte segment
#x0f
)
2302 (emit-byte-with-reg segment
#b11001
(reg-tn-encoding dst
)))))
2304 ;;; CBW -- Convert Byte to Word. AX <- sign_xtnd(AL)
2305 (define-instruction cbw
(segment)
2306 (:printer x66-byte
((op #b10011000
)))
2308 (maybe-emit-operand-size-prefix segment
:word
)
2309 (emit-byte segment
#b10011000
)))
2311 ;;; CWDE -- Convert Word To Double Word Extended. EAX <- sign_xtnd(AX)
2312 (define-instruction cwde
(segment)
2313 (:printer byte
((op #b10011000
)))
2315 (maybe-emit-operand-size-prefix segment
:dword
)
2316 (emit-byte segment
#b10011000
)))
2318 ;;; CDQE -- Convert Double Word To Quad Word Extended. RAX <- sign_xtnd(EAX)
2319 (define-instruction cdqe
(segment)
2320 (:printer rex-byte
((op #b10011000
)))
2322 (maybe-emit-rex-prefix segment
:qword nil nil nil
)
2323 (emit-byte segment
#b10011000
)))
2325 ;;; CWD -- Convert Word to Double Word. DX:AX <- sign_xtnd(AX)
2326 (define-instruction cwd
(segment)
2327 (:printer x66-byte
((op #b10011001
)))
2329 (maybe-emit-operand-size-prefix segment
:word
)
2330 (emit-byte segment
#b10011001
)))
2332 ;;; CDQ -- Convert Double Word to Quad Word. EDX:EAX <- sign_xtnd(EAX)
2333 (define-instruction cdq
(segment)
2334 (:printer byte
((op #b10011001
)))
2336 (maybe-emit-operand-size-prefix segment
:dword
)
2337 (emit-byte segment
#b10011001
)))
2339 ;;; CQO -- Convert Quad Word to Octaword. RDX:RAX <- sign_xtnd(RAX)
2340 (define-instruction cqo
(segment)
2341 (:printer rex-byte
((op #b10011001
)))
2343 (maybe-emit-rex-prefix segment
:qword nil nil nil
)
2344 (emit-byte segment
#b10011001
)))
2346 (define-instruction xadd
(segment dst src
&optional prefix
)
2347 ;; Register/Memory with Register.
2348 (:printer ext-reg-reg
/mem
((op #b1100000
)) '(:name
:tab reg
/mem
", " reg
))
2350 (aver (register-p src
))
2351 (emit-prefix segment prefix
)
2352 (let ((size (matching-operand-size src dst
)))
2353 (maybe-emit-operand-size-prefix segment size
)
2354 (maybe-emit-rex-for-ea segment dst src
)
2355 (emit-byte segment
#b00001111
)
2356 (emit-byte segment
(if (eq size
:byte
) #b11000000
#b11000001
))
2357 (emit-ea segment dst
(reg-tn-encoding src
)))))
2362 (defun emit-shift-inst (segment dst amount opcode
)
2363 (let ((size (operand-size dst
)))
2364 (maybe-emit-operand-size-prefix segment size
)
2365 (multiple-value-bind (major-opcode immed
)
2367 (:cl
(values #b11010010 nil
))
2368 (1 (values #b11010000 nil
))
2369 (t (values #b11000000 t
)))
2370 (maybe-emit-rex-for-ea segment dst nil
)
2372 (if (eq size
:byte
) major-opcode
(logior major-opcode
1)))
2373 (emit-ea segment dst opcode
)
2375 (emit-byte segment amount
)))))
2377 (eval-when (:compile-toplevel
:execute
)
2378 (defun shift-inst-printer-list (subop)
2379 `((reg/mem
((op (#b1101000
,subop
)))
2380 (:name
:tab reg
/mem
", 1"))
2381 (rex-reg/mem
((op (#b1101000
,subop
)))
2382 (:name
:tab reg
/mem
", 1"))
2383 (reg/mem
((op (#b1101001
,subop
)))
2384 (:name
:tab reg
/mem
", " 'cl
))
2385 (rex-reg/mem
((op (#b1101001
,subop
)))
2386 (:name
:tab reg
/mem
", " 'cl
))
2387 (reg/mem-imm
((op (#b1100000
,subop
))
2388 (imm nil
:type imm-byte
)))
2389 (rex-reg/mem-imm
((op (#b1100000
,subop
))
2390 (imm nil
:type imm-byte
))))))
2392 (define-instruction rol
(segment dst amount
)
2394 (shift-inst-printer-list #b000
))
2396 (emit-shift-inst segment dst amount
#b000
)))
2398 (define-instruction ror
(segment dst amount
)
2400 (shift-inst-printer-list #b001
))
2402 (emit-shift-inst segment dst amount
#b001
)))
2404 (define-instruction rcl
(segment dst amount
)
2406 (shift-inst-printer-list #b010
))
2408 (emit-shift-inst segment dst amount
#b010
)))
2410 (define-instruction rcr
(segment dst amount
)
2412 (shift-inst-printer-list #b011
))
2414 (emit-shift-inst segment dst amount
#b011
)))
2416 (define-instruction shl
(segment dst amount
)
2418 (shift-inst-printer-list #b100
))
2420 (emit-shift-inst segment dst amount
#b100
)))
2422 (define-instruction shr
(segment dst amount
)
2424 (shift-inst-printer-list #b101
))
2426 (emit-shift-inst segment dst amount
#b101
)))
2428 (define-instruction sar
(segment dst amount
)
2430 (shift-inst-printer-list #b111
))
2432 (emit-shift-inst segment dst amount
#b111
)))
2434 (defun emit-double-shift (segment opcode dst src amt
)
2435 (let ((size (matching-operand-size dst src
)))
2436 (when (eq size
:byte
)
2437 (error "Double shifts can only be used with words."))
2438 (maybe-emit-operand-size-prefix segment size
)
2439 (maybe-emit-rex-for-ea segment dst src
)
2440 (emit-byte segment
#b00001111
)
2441 (emit-byte segment
(dpb opcode
(byte 1 3)
2442 (if (eq amt
:cl
) #b10100101
#b10100100
)))
2443 (emit-ea segment dst
(reg-tn-encoding src
))
2444 (unless (eq amt
:cl
)
2445 (emit-byte segment amt
))))
2447 (eval-when (:compile-toplevel
:execute
)
2448 (defun double-shift-inst-printer-list (op)
2450 (ext-reg-reg/mem-imm
((op ,(logior op
#b100
))
2451 (imm nil
:type signed-imm-byte
)))
2452 (ext-reg-reg/mem
((op ,(logior op
#b101
)))
2453 (:name
:tab reg
/mem
", " 'cl
)))))
2455 (define-instruction shld
(segment dst src amt
)
2456 (:declare
(type (or (member :cl
) (mod 32)) amt
))
2457 (:printer-list
(double-shift-inst-printer-list #b10100000
))
2459 (emit-double-shift segment
#b0 dst src amt
)))
2461 (define-instruction shrd
(segment dst src amt
)
2462 (:declare
(type (or (member :cl
) (mod 32)) amt
))
2463 (:printer-list
(double-shift-inst-printer-list #b10101000
))
2465 (emit-double-shift segment
#b1 dst src amt
)))
2467 (define-instruction and
(segment dst src
)
2469 (arith-inst-printer-list #b100
))
2471 (emit-random-arith-inst "AND" segment dst src
#b100
)))
2473 (define-instruction test
(segment this that
)
2474 (:printer accum-imm
((op #b1010100
)))
2475 (:printer rex-accum-imm
((op #b1010100
)))
2476 (:printer reg
/mem-imm
((op '(#b1111011
#b000
))))
2477 (:printer rex-reg
/mem-imm
((op '(#b1111011
#b000
))))
2478 (:printer reg-reg
/mem
((op #b1000010
)))
2479 (:printer rex-reg-reg
/mem
((op #b1000010
)))
2481 (let ((size (matching-operand-size this that
)))
2482 (maybe-emit-operand-size-prefix segment size
)
2483 (flet ((test-immed-and-something (immed something
)
2484 (cond ((accumulator-p something
)
2485 (maybe-emit-rex-for-ea segment something nil
)
2487 (if (eq size
:byte
) #b10101000
#b10101001
))
2488 (emit-sized-immediate segment size immed
))
2490 (maybe-emit-rex-for-ea segment something nil
)
2492 (if (eq size
:byte
) #b11110110
#b11110111
))
2493 (emit-ea segment something
#b000
)
2494 (emit-sized-immediate segment size immed
))))
2495 (test-reg-and-something (reg something
)
2496 (maybe-emit-rex-for-ea segment something reg
)
2497 (emit-byte segment
(if (eq size
:byte
) #b10000100
#b10000101
))
2498 (emit-ea segment something
(reg-tn-encoding reg
))))
2499 (cond ((integerp that
)
2500 (test-immed-and-something that this
))
2502 (test-immed-and-something this that
))
2504 (test-reg-and-something this that
))
2506 (test-reg-and-something that this
))
2508 (error "bogus operands for TEST: ~S and ~S" this that
)))))))
2510 (define-instruction or
(segment dst src
)
2512 (arith-inst-printer-list #b001
))
2514 (emit-random-arith-inst "OR" segment dst src
#b001
)))
2516 (define-instruction xor
(segment dst src
)
2518 (arith-inst-printer-list #b110
))
2520 (emit-random-arith-inst "XOR" segment dst src
#b110
)))
2522 (define-instruction not
(segment dst
)
2523 (:printer reg
/mem
((op '(#b1111011
#b010
))))
2524 (:printer rex-reg
/mem
((op '(#b1111011
#b010
))))
2526 (let ((size (operand-size dst
)))
2527 (maybe-emit-operand-size-prefix segment size
)
2528 (maybe-emit-rex-for-ea segment dst nil
)
2529 (emit-byte segment
(if (eq size
:byte
) #b11110110
#b11110111
))
2530 (emit-ea segment dst
#b010
))))
2532 ;;;; string manipulation
2534 (define-instruction cmps
(segment size
)
2535 (:printer string-op
((op #b1010011
)))
2536 (:printer rex-string-op
((op #b1010011
)))
2538 (maybe-emit-operand-size-prefix segment size
)
2539 (maybe-emit-rex-prefix segment size nil nil nil
)
2540 (emit-byte segment
(if (eq size
:byte
) #b10100110
#b10100111
))))
2542 (define-instruction ins
(segment acc
)
2543 (:printer string-op
((op #b0110110
)))
2544 (:printer rex-string-op
((op #b0110110
)))
2546 (let ((size (operand-size acc
)))
2547 (aver (accumulator-p acc
))
2548 (maybe-emit-operand-size-prefix segment size
)
2549 (maybe-emit-rex-prefix segment size nil nil nil
)
2550 (emit-byte segment
(if (eq size
:byte
) #b01101100
#b01101101
)))))
2552 (define-instruction lods
(segment acc
)
2553 (:printer string-op
((op #b1010110
)))
2554 (:printer rex-string-op
((op #b1010110
)))
2556 (let ((size (operand-size acc
)))
2557 (aver (accumulator-p acc
))
2558 (maybe-emit-operand-size-prefix segment size
)
2559 (maybe-emit-rex-prefix segment size nil nil nil
)
2560 (emit-byte segment
(if (eq size
:byte
) #b10101100
#b10101101
)))))
2562 (define-instruction movs
(segment size
)
2563 (:printer string-op
((op #b1010010
)))
2564 (:printer rex-string-op
((op #b1010010
)))
2566 (maybe-emit-operand-size-prefix segment size
)
2567 (maybe-emit-rex-prefix segment size nil nil nil
)
2568 (emit-byte segment
(if (eq size
:byte
) #b10100100
#b10100101
))))
2570 (define-instruction outs
(segment acc
)
2571 (:printer string-op
((op #b0110111
)))
2572 (:printer rex-string-op
((op #b0110111
)))
2574 (let ((size (operand-size acc
)))
2575 (aver (accumulator-p acc
))
2576 (maybe-emit-operand-size-prefix segment size
)
2577 (maybe-emit-rex-prefix segment size nil nil nil
)
2578 (emit-byte segment
(if (eq size
:byte
) #b01101110
#b01101111
)))))
2580 (define-instruction scas
(segment acc
)
2581 (:printer string-op
((op #b1010111
)))
2582 (:printer rex-string-op
((op #b1010111
)))
2584 (let ((size (operand-size acc
)))
2585 (aver (accumulator-p acc
))
2586 (maybe-emit-operand-size-prefix segment size
)
2587 (maybe-emit-rex-prefix segment size nil nil nil
)
2588 (emit-byte segment
(if (eq size
:byte
) #b10101110
#b10101111
)))))
2590 (define-instruction stos
(segment acc
)
2591 (:printer string-op
((op #b1010101
)))
2592 (:printer rex-string-op
((op #b1010101
)))
2594 (let ((size (operand-size acc
)))
2595 (aver (accumulator-p acc
))
2596 (maybe-emit-operand-size-prefix segment size
)
2597 (maybe-emit-rex-prefix segment size nil nil nil
)
2598 (emit-byte segment
(if (eq size
:byte
) #b10101010
#b10101011
)))))
2600 (define-instruction xlat
(segment)
2601 (:printer byte
((op #b11010111
)))
2603 (emit-byte segment
#b11010111
)))
2605 (define-instruction rep
(segment)
2607 (emit-byte segment
#b11110011
)))
2609 (define-instruction repe
(segment)
2610 (:printer byte
((op #b11110011
)))
2612 (emit-byte segment
#b11110011
)))
2614 (define-instruction repne
(segment)
2615 (:printer byte
((op #b11110010
)))
2617 (emit-byte segment
#b11110010
)))
2620 ;;;; bit manipulation
2622 (define-instruction bsf
(segment dst src
)
2623 (:printer ext-reg-reg
/mem-no-width
((op #b10111100
)))
2624 (:printer rex-ext-reg-reg
/mem-no-width
((op #b10111100
)))
2626 (let ((size (matching-operand-size dst src
)))
2627 (when (eq size
:byte
)
2628 (error "can't scan bytes: ~S" src
))
2629 (maybe-emit-operand-size-prefix segment size
)
2630 (maybe-emit-rex-for-ea segment src dst
)
2631 (emit-byte segment
#b00001111
)
2632 (emit-byte segment
#b10111100
)
2633 (emit-ea segment src
(reg-tn-encoding dst
)))))
2635 (define-instruction bsr
(segment dst src
)
2636 (:printer ext-reg-reg
/mem-no-width
((op #b10111101
)))
2637 (:printer rex-ext-reg-reg
/mem-no-width
((op #b10111101
)))
2639 (let ((size (matching-operand-size dst src
)))
2640 (when (eq size
:byte
)
2641 (error "can't scan bytes: ~S" src
))
2642 (maybe-emit-operand-size-prefix segment size
)
2643 (maybe-emit-rex-for-ea segment src dst
)
2644 (emit-byte segment
#b00001111
)
2645 (emit-byte segment
#b10111101
)
2646 (emit-ea segment src
(reg-tn-encoding dst
)))))
2648 (defun emit-bit-test-and-mumble (segment src index opcode
)
2649 (let ((size (operand-size src
)))
2650 (when (eq size
:byte
)
2651 (error "can't scan bytes: ~S" src
))
2652 (maybe-emit-operand-size-prefix segment size
)
2653 (cond ((integerp index
)
2654 (maybe-emit-rex-for-ea segment src nil
)
2655 (emit-byte segment
#b00001111
)
2656 (emit-byte segment
#b10111010
)
2657 (emit-ea segment src opcode
)
2658 (emit-byte segment index
))
2660 (maybe-emit-rex-for-ea segment src index
)
2661 (emit-byte segment
#b00001111
)
2662 (emit-byte segment
(dpb opcode
(byte 3 3) #b10000011
))
2663 (emit-ea segment src
(reg-tn-encoding index
))))))
2665 (eval-when (:compile-toplevel
:execute
)
2666 (defun bit-test-inst-printer-list (subop)
2667 `((ext-reg/mem-imm
((op (#b1011101
,subop
))
2668 (reg/mem nil
:type reg
/mem
)
2669 (imm nil
:type imm-byte
)
2671 (ext-reg-reg/mem
((op ,(dpb subop
(byte 3 2) #b1000001
))
2673 (:name
:tab reg
/mem
", " reg
)))))
2675 (define-instruction bt
(segment src index
)
2676 (:printer-list
(bit-test-inst-printer-list #b100
))
2678 (emit-bit-test-and-mumble segment src index
#b100
)))
2680 (define-instruction btc
(segment src index
)
2681 (:printer-list
(bit-test-inst-printer-list #b111
))
2683 (emit-bit-test-and-mumble segment src index
#b111
)))
2685 (define-instruction btr
(segment src index
)
2686 (:printer-list
(bit-test-inst-printer-list #b110
))
2688 (emit-bit-test-and-mumble segment src index
#b110
)))
2690 (define-instruction bts
(segment src index
)
2691 (:printer-list
(bit-test-inst-printer-list #b101
))
2693 (emit-bit-test-and-mumble segment src index
#b101
)))
2696 ;;;; control transfer
2698 (define-instruction call
(segment where
)
2699 (:printer near-jump
((op #b11101000
)))
2700 (:printer reg
/mem-default-qword
((op '(#b11111111
#b010
))))
2701 (:printer rex-reg
/mem-default-qword
((op '(#b11111111
#b010
))))
2705 (emit-byte segment
#b11101000
) ; 32 bit relative
2706 (emit-back-patch segment
2708 (lambda (segment posn
)
2709 (emit-signed-dword segment
2710 (- (label-position where
)
2713 ;; There is no CALL rel64...
2714 (error "Cannot CALL a fixup: ~S" where
))
2716 (maybe-emit-rex-for-ea segment where nil
:operand-size
:do-not-set
)
2717 (emit-byte segment
#b11111111
)
2718 (emit-ea segment where
#b010
)))))
2720 (defun emit-byte-displacement-backpatch (segment target
)
2721 (emit-back-patch segment
2723 (lambda (segment posn
)
2724 (let ((disp (- (label-position target
) (1+ posn
))))
2725 (aver (<= -
128 disp
127))
2726 (emit-byte segment disp
)))))
2728 (define-instruction jmp
(segment cond
&optional where
)
2729 ;; conditional jumps
2730 (:printer short-cond-jump
((op #b0111
)) '('j cc
:tab label
))
2731 (:printer near-cond-jump
() '('j cc
:tab label
))
2732 ;; unconditional jumps
2733 (:printer short-jump
((op #b1011
)))
2734 (:printer near-jump
((op #b11101001
)))
2735 (:printer reg
/mem-default-qword
((op '(#b11111111
#b100
))))
2736 (:printer rex-reg
/mem-default-qword
((op '(#b11111111
#b100
))))
2741 (lambda (segment posn delta-if-after
)
2742 (let ((disp (- (label-position where posn delta-if-after
)
2744 (when (<= -
128 disp
127)
2746 (dpb (conditional-opcode cond
)
2749 (emit-byte-displacement-backpatch segment where
)
2751 (lambda (segment posn
)
2752 (let ((disp (- (label-position where
) (+ posn
6))))
2753 (emit-byte segment
#b00001111
)
2755 (dpb (conditional-opcode cond
)
2758 (emit-signed-dword segment disp
)))))
2759 ((label-p (setq where cond
))
2762 (lambda (segment posn delta-if-after
)
2763 (let ((disp (- (label-position where posn delta-if-after
)
2765 (when (<= -
128 disp
127)
2766 (emit-byte segment
#b11101011
)
2767 (emit-byte-displacement-backpatch segment where
)
2769 (lambda (segment posn
)
2770 (let ((disp (- (label-position where
) (+ posn
5))))
2771 (emit-byte segment
#b11101001
)
2772 (emit-signed-dword segment disp
)))))
2774 (emit-byte segment
#b11101001
)
2775 (emit-relative-fixup segment where
))
2777 (unless (or (ea-p where
) (tn-p where
))
2778 (error "don't know what to do with ~A" where
))
2779 ;; near jump defaults to 64 bit
2780 ;; w-bit in rex prefix is unnecessary
2781 (maybe-emit-rex-for-ea segment where nil
:operand-size
:do-not-set
)
2782 (emit-byte segment
#b11111111
)
2783 (emit-ea segment where
#b100
)))))
2785 (define-instruction ret
(segment &optional stack-delta
)
2786 (:printer byte
((op #b11000011
)))
2787 (:printer byte
((op #b11000010
) (imm nil
:type
'imm-word-16
))
2790 (cond ((and stack-delta
(not (zerop stack-delta
)))
2791 (emit-byte segment
#b11000010
)
2792 (emit-word segment stack-delta
))
2794 (emit-byte segment
#b11000011
)))))
2796 (define-instruction jrcxz
(segment target
)
2797 (:printer short-jump
((op #b0011
)))
2799 (emit-byte segment
#b11100011
)
2800 (emit-byte-displacement-backpatch segment target
)))
2802 (define-instruction loop
(segment target
)
2803 (:printer short-jump
((op #b0010
)))
2805 (emit-byte segment
#b11100010
) ; pfw this was 11100011, or jecxz!!!!
2806 (emit-byte-displacement-backpatch segment target
)))
2808 (define-instruction loopz
(segment target
)
2809 (:printer short-jump
((op #b0001
)))
2811 (emit-byte segment
#b11100001
)
2812 (emit-byte-displacement-backpatch segment target
)))
2814 (define-instruction loopnz
(segment target
)
2815 (:printer short-jump
((op #b0000
)))
2817 (emit-byte segment
#b11100000
)
2818 (emit-byte-displacement-backpatch segment target
)))
2820 ;;;; conditional move
2821 (define-instruction cmov
(segment cond dst src
)
2822 (:printer cond-move
())
2823 (:printer rex-cond-move
())
2825 (aver (register-p dst
))
2826 (let ((size (matching-operand-size dst src
)))
2827 (aver (or (eq size
:word
) (eq size
:dword
) (eq size
:qword
)))
2828 (maybe-emit-operand-size-prefix segment size
))
2829 (maybe-emit-rex-for-ea segment src dst
)
2830 (emit-byte segment
#b00001111
)
2831 (emit-byte segment
(dpb (conditional-opcode cond
) (byte 4 0) #b01000000
))
2832 (emit-ea segment src
(reg-tn-encoding dst
))))
2834 ;;;; conditional byte set
2836 (define-instruction set
(segment dst cond
)
2837 (:printer cond-set
())
2839 (maybe-emit-rex-for-ea segment dst nil
)
2840 (emit-byte segment
#b00001111
)
2841 (emit-byte segment
(dpb (conditional-opcode cond
) (byte 4 0) #b10010000
))
2842 (emit-ea segment dst
#b000
)))
2846 (define-instruction enter
(segment disp
&optional
(level 0))
2847 (:declare
(type (unsigned-byte 16) disp
)
2848 (type (unsigned-byte 8) level
))
2849 (:printer enter-format
((op #b11001000
)))
2851 (emit-byte segment
#b11001000
)
2852 (emit-word segment disp
)
2853 (emit-byte segment level
)))
2855 (define-instruction leave
(segment)
2856 (:printer byte
((op #b11001001
)))
2858 (emit-byte segment
#b11001001
)))
2860 ;;;; interrupt instructions
2862 (defun snarf-error-junk (sap offset
&optional length-only
)
2863 (let* ((length (sb!sys
:sap-ref-8 sap offset
))
2864 (vector (make-array length
:element-type
'(unsigned-byte 8))))
2865 (declare (type sb
!sys
:system-area-pointer sap
)
2866 (type (unsigned-byte 8) length
)
2867 (type (simple-array (unsigned-byte 8) (*)) vector
))
2869 (values 0 (1+ length
) nil nil
))
2871 (sb!kernel
:copy-ub8-from-system-area sap
(1+ offset
)
2873 (collect ((sc-offsets)
2875 (lengths 1) ; the length byte
2877 (error-number (sb!c
:read-var-integer vector index
)))
2880 (when (>= index length
)
2882 (let ((old-index index
))
2883 (sc-offsets (sb!c
:read-var-integer vector index
))
2884 (lengths (- index old-index
))))
2885 (values error-number
2891 (defmacro break-cases
(breaknum &body cases
)
2892 (let ((bn-temp (gensym)))
2893 (collect ((clauses))
2894 (dolist (case cases
)
2895 (clauses `((= ,bn-temp
,(car case
)) ,@(cdr case
))))
2896 `(let ((,bn-temp
,breaknum
))
2897 (cond ,@(clauses))))))
2900 (defun break-control (chunk inst stream dstate
)
2901 (declare (ignore inst
))
2902 (flet ((nt (x) (if stream
(sb!disassem
:note x dstate
))))
2903 ;; FIXME: Make sure that BYTE-IMM-CODE is defined. The genesis
2904 ;; map has it undefined; and it should be easier to look in the target
2905 ;; Lisp (with (DESCRIBE 'BYTE-IMM-CODE)) than to definitively deduce
2906 ;; from first principles whether it's defined in some way that genesis
2908 (case #!-darwin
(byte-imm-code chunk dstate
)
2909 #!+darwin
(word-imm-code chunk dstate
)
2912 (sb!disassem
:handle-break-args
#'snarf-error-junk stream dstate
))
2915 (sb!disassem
:handle-break-args
#'snarf-error-junk stream dstate
))
2917 (nt "breakpoint trap"))
2918 (#.pending-interrupt-trap
2919 (nt "pending interrupt trap"))
2922 (#.fun-end-breakpoint-trap
2923 (nt "function end breakpoint trap"))
2924 (#.single-step-around-trap
2925 (nt "single-step trap (around)"))
2926 (#.single-step-before-trap
2927 (nt "single-step trap (before)")))))
2929 (define-instruction break
(segment code
)
2930 (:declare
(type (unsigned-byte 8) code
))
2931 #!-darwin
(:printer byte-imm
((op #b11001100
)) '(:name
:tab code
)
2932 :control
#'break-control
)
2933 #!+darwin
(:printer word-imm
((op #b0000101100001111
)) '(:name
:tab code
)
2934 :control
#'break-control
)
2936 #!-darwin
(emit-byte segment
#b11001100
)
2937 ;; On darwin, trap handling via SIGTRAP is unreliable, therefore we
2938 ;; throw a sigill with 0x0b0f instead and check for this in the
2939 ;; SIGILL handler and pass it on to the sigtrap handler if
2941 #!+darwin
(emit-word segment
#b0000101100001111
)
2942 (emit-byte segment code
)))
2944 (define-instruction int
(segment number
)
2945 (:declare
(type (unsigned-byte 8) number
))
2946 (:printer byte-imm
((op #b11001101
)))
2950 (emit-byte segment
#b11001100
))
2952 (emit-byte segment
#b11001101
)
2953 (emit-byte segment number
)))))
2955 (define-instruction iret
(segment)
2956 (:printer byte
((op #b11001111
)))
2958 (emit-byte segment
#b11001111
)))
2960 ;;;; processor control
2962 (define-instruction hlt
(segment)
2963 (:printer byte
((op #b11110100
)))
2965 (emit-byte segment
#b11110100
)))
2967 (define-instruction nop
(segment)
2968 (:printer byte
((op #b10010000
)))
2970 (emit-byte segment
#b10010000
)))
2972 (define-instruction wait
(segment)
2973 (:printer byte
((op #b10011011
)))
2975 (emit-byte segment
#b10011011
)))
2977 (defun emit-prefix (segment name
)
2978 (declare (ignorable segment
))
2983 (emit-byte segment
#xf0
))))
2985 ;;; FIXME: It would be better to make the disassembler understand the prefix as part
2986 ;;; of the instructions...
2987 (define-instruction lock
(segment)
2988 (:printer byte
((op #b11110000
)))
2990 (bug "LOCK prefix used as a standalone instruction")))
2992 ;;;; miscellaneous hackery
2994 (define-instruction byte
(segment byte
)
2996 (emit-byte segment byte
)))
2998 (define-instruction word
(segment word
)
3000 (emit-word segment word
)))
3002 (define-instruction dword
(segment dword
)
3004 (emit-dword segment dword
)))
3006 (defun emit-header-data (segment type
)
3007 (emit-back-patch segment
3009 (lambda (segment posn
)
3013 (component-header-length))
3017 (define-instruction simple-fun-header-word
(segment)
3019 (emit-header-data segment simple-fun-header-widetag
)))
3021 (define-instruction lra-header-word
(segment)
3023 (emit-header-data segment return-pc-header-widetag
)))
3025 ;;;; Instructions required to do floating point operations using SSE
3027 (defun emit-sse-inst (segment dst src prefix opcode
&key operand-size
)
3029 (emit-byte segment prefix
))
3031 (maybe-emit-rex-for-ea segment src dst
:operand-size operand-size
)
3032 (maybe-emit-rex-for-ea segment src dst
))
3033 (emit-byte segment
#x0f
)
3034 (emit-byte segment opcode
)
3035 (emit-ea segment src
(reg-tn-encoding dst
)))
3037 ;; 0110 0110:0000 1111:0111 00gg: 11 010 xmmreg:imm8
3039 (defun emit-sse-inst-with-imm (segment dst
/src imm
3044 (emit-byte segment prefix
))
3045 (maybe-emit-rex-prefix segment operand-size dst
/src nil nil
)
3046 (emit-byte segment
#x0F
)
3047 (emit-byte segment opcode
)
3048 (emit-byte segment
(logior (ash (logior #b11000
/i
) 3)
3049 (reg-tn-encoding dst
/src
)))
3050 (emit-byte segment imm
))
3053 ((define-imm-sse-instruction (name opcode
/i
)
3054 `(define-instruction ,name
(segment dst
/src imm
)
3055 (:printer ext-rex-xmm-imm
((prefix #x66
) (op ,opcode
) (/i
,/i
)))
3056 (:printer ext-xmm-imm
((prefix #x66
) (op ,opcode
) (/i
,/i
)))
3058 (emit-sse-inst-with-imm segment dst
/src imm
3060 :operand-size
:do-not-set
)))))
3061 (define-imm-sse-instruction pslldq
#x73
7)
3062 (define-imm-sse-instruction psllw
#x71
6)
3063 (define-imm-sse-instruction pslld
#x72
6)
3064 (define-imm-sse-instruction psllq
#x73
6)
3066 (define-imm-sse-instruction psraw-imm
#x71
4)
3067 (define-imm-sse-instruction psrad-imm
#x72
4)
3069 (define-imm-sse-instruction psrldq
#x73
3)
3070 (define-imm-sse-instruction psrlw
#x71
2)
3071 (define-imm-sse-instruction psrld
#x72
2)
3072 (define-imm-sse-instruction psrlq
#x73
2))
3074 ;;; Emit an SSE instruction that has an XMM register as the destination
3075 ;;; operand and for which the size of the operands is implicitly given
3076 ;;; by the instruction.
3077 (defun emit-regular-sse-inst (segment dst src prefix opcode
)
3078 (aver (xmm-register-p dst
))
3079 (emit-sse-inst segment dst src prefix opcode
3080 :operand-size
:do-not-set
))
3082 ;;; Instructions having an XMM register as the destination operand
3083 ;;; and an XMM register or a memory location as the source operand.
3084 ;;; The operand size is implicitly given by the instruction.
3086 (macrolet ((define-regular-sse-inst (name prefix opcode
)
3087 `(define-instruction ,name
(segment dst src
)
3089 `((:printer ext-xmm-xmm
/mem
3090 ((prefix ,prefix
) (op ,opcode
)))
3091 (:printer ext-rex-xmm-xmm
/mem
3092 ((prefix ,prefix
) (op ,opcode
))))
3093 `((:printer xmm-xmm
/mem
((op ,opcode
)))
3094 (:printer rex-xmm-xmm
/mem
((op ,opcode
)))))
3096 (emit-regular-sse-inst segment dst src
,prefix
,opcode
)))))
3098 (define-regular-sse-inst andpd
#x66
#x54
)
3099 (define-regular-sse-inst andps nil
#x54
)
3100 (define-regular-sse-inst andnpd
#x66
#x55
)
3101 (define-regular-sse-inst andnps nil
#x55
)
3102 (define-regular-sse-inst orpd
#x66
#x56
)
3103 (define-regular-sse-inst orps nil
#x56
)
3104 (define-regular-sse-inst pand
#x66
#xdb
)
3105 (define-regular-sse-inst pandn
#x66
#xdf
)
3106 (define-regular-sse-inst por
#x66
#xeb
)
3107 (define-regular-sse-inst pxor
#x66
#xef
)
3108 (define-regular-sse-inst xorpd
#x66
#x57
)
3109 (define-regular-sse-inst xorps nil
#x57
)
3111 (define-regular-sse-inst comisd
#x66
#x2f
)
3112 (define-regular-sse-inst comiss nil
#x2f
)
3113 (define-regular-sse-inst ucomisd
#x66
#x2e
)
3114 (define-regular-sse-inst ucomiss nil
#x2e
)
3115 ;; integer comparison
3116 (define-regular-sse-inst pcmpeqb
#x66
#x74
)
3117 (define-regular-sse-inst pcmpeqw
#x66
#x75
)
3118 (define-regular-sse-inst pcmpeqd
#x66
#x76
)
3119 (define-regular-sse-inst pcmpgtb
#x66
#x64
)
3120 (define-regular-sse-inst pcmpgtw
#x66
#x65
)
3121 (define-regular-sse-inst pcmpgtd
#x66
#x66
)
3123 (define-regular-sse-inst maxpd
#x66
#x5f
)
3124 (define-regular-sse-inst maxps nil
#x5f
)
3125 (define-regular-sse-inst maxsd
#xf2
#x5f
)
3126 (define-regular-sse-inst maxss
#xf3
#x5f
)
3127 (define-regular-sse-inst minpd
#x66
#x5d
)
3128 (define-regular-sse-inst minps nil
#x5d
)
3129 (define-regular-sse-inst minsd
#xf2
#x5d
)
3130 (define-regular-sse-inst minss
#xf3
#x5d
)
3132 (define-regular-sse-inst pmaxsw
#x66
#xee
)
3133 (define-regular-sse-inst pmaxub
#x66
#xde
)
3134 (define-regular-sse-inst pminsw
#x66
#xea
)
3135 (define-regular-sse-inst pminub
#x66
#xda
)
3137 (define-regular-sse-inst addpd
#x66
#x58
)
3138 (define-regular-sse-inst addps nil
#x58
)
3139 (define-regular-sse-inst addsd
#xf2
#x58
)
3140 (define-regular-sse-inst addss
#xf3
#x58
)
3141 (define-regular-sse-inst divpd
#x66
#x5e
)
3142 (define-regular-sse-inst divps nil
#x5e
)
3143 (define-regular-sse-inst divsd
#xf2
#x5e
)
3144 (define-regular-sse-inst divss
#xf3
#x5e
)
3145 (define-regular-sse-inst mulpd
#x66
#x59
)
3146 (define-regular-sse-inst mulps nil
#x59
)
3147 (define-regular-sse-inst mulsd
#xf2
#x59
)
3148 (define-regular-sse-inst mulss
#xf3
#x59
)
3149 (define-regular-sse-inst rccps nil
#x53
)
3150 (define-regular-sse-inst rcpss
#xf3
#x53
)
3151 (define-regular-sse-inst rsqrtps nil
#x52
)
3152 (define-regular-sse-inst rsqrtss
#xf3
#x52
)
3153 (define-regular-sse-inst sqrtps nil
#x51
)
3154 (define-regular-sse-inst sqrtsd
#xf2
#x51
)
3155 (define-regular-sse-inst sqrtss
#xf3
#x51
)
3156 (define-regular-sse-inst subpd
#x66
#x5c
)
3157 (define-regular-sse-inst subps nil
#x5c
)
3158 (define-regular-sse-inst subsd
#xf2
#x5c
)
3159 (define-regular-sse-inst subss
#xf3
#x5c
)
3160 (define-regular-sse-inst unpckhpd
#x66
#x15
)
3161 (define-regular-sse-inst unpckhps nil
#x15
)
3162 (define-regular-sse-inst unpcklpd
#x66
#x14
)
3163 (define-regular-sse-inst unpcklps nil
#x14
)
3164 ;; integer arithmetic
3165 (define-regular-sse-inst paddb
#x66
#xfc
)
3166 (define-regular-sse-inst paddw
#x66
#xfd
)
3167 (define-regular-sse-inst paddd
#x66
#xfe
)
3168 (define-regular-sse-inst paddq
#x66
#xd4
)
3169 (define-regular-sse-inst paddsb
#x66
#xec
)
3170 (define-regular-sse-inst paddsw
#x66
#xed
)
3171 (define-regular-sse-inst paddusb
#x66
#xdc
)
3172 (define-regular-sse-inst padduwb
#x66
#xdd
)
3173 (define-regular-sse-inst pavgb
#x66
#xe0
)
3174 (define-regular-sse-inst pavgw
#x66
#xe3
)
3175 (define-regular-sse-inst pmaddwd
#x66
#xf5
)
3176 (define-regular-sse-inst pmulhuw
#x66
#xe4
)
3177 (define-regular-sse-inst pmulhw
#x66
#xe5
)
3178 (define-regular-sse-inst pmullw
#x66
#xd5
)
3179 (define-regular-sse-inst pmuludq
#x66
#xf4
)
3180 (define-regular-sse-inst psadbw
#x66
#xf6
)
3181 (define-regular-sse-inst psraw
#x66
#xe1
)
3182 (define-regular-sse-inst psrad
#x66
#xe2
)
3183 (define-regular-sse-inst psubb
#x66
#xf8
)
3184 (define-regular-sse-inst psubw
#x66
#xf9
)
3185 (define-regular-sse-inst psubd
#x66
#xfa
)
3186 (define-regular-sse-inst psubq
#x66
#xfb
)
3187 (define-regular-sse-inst psubsb
#x66
#xd8
)
3188 (define-regular-sse-inst psubsw
#x66
#xd9
)
3190 (define-regular-sse-inst cvtdq2pd
#xf3
#xe6
)
3191 (define-regular-sse-inst cvtdq2ps nil
#x5b
)
3192 (define-regular-sse-inst cvtpd2dq
#xf2
#xe6
)
3193 (define-regular-sse-inst cvtpd2ps
#x66
#x5a
)
3194 (define-regular-sse-inst cvtps2dq
#x66
#x5b
)
3195 (define-regular-sse-inst cvtps2pd nil
#x5a
)
3196 (define-regular-sse-inst cvtsd2ss
#xf2
#x5a
)
3197 (define-regular-sse-inst cvtss2sd
#xf3
#x5a
)
3198 (define-regular-sse-inst cvttpd2dq
#x66
#xe6
)
3199 (define-regular-sse-inst cvttps2dq
#xf3
#x5b
)
3201 (define-regular-sse-inst movntdq
#x66
#xe7
)
3202 (define-regular-sse-inst movntpd
#x66
#x2b
)
3203 (define-regular-sse-inst movntps nil
#x2b
)
3205 (define-regular-sse-inst packsswb
#x66
#x63
)
3206 (define-regular-sse-inst packssdw
#x66
#x6b
)
3207 (define-regular-sse-inst punpckhbw
#x66
#x68
)
3208 (define-regular-sse-inst punpckhwd
#x66
#x69
)
3209 (define-regular-sse-inst punpckhdq
#x66
#x6a
)
3210 (define-regular-sse-inst punpckhqdq
#x66
#x6d
)
3211 (define-regular-sse-inst punpcklbw
#x66
#x60
)
3212 (define-regular-sse-inst punpcklwd
#x66
#x61
)
3213 (define-regular-sse-inst punpckldq
#x66
#x62
)
3214 (define-regular-sse-inst punpcklqdq
#x66
#x6c
))
3216 (macrolet ((define-xmm-shuffle-sse-inst (name prefix opcode
)
3217 `(define-instruction ,name
(segment dst src pattern
)
3219 `((:printer ext-xmm-xmm
/mem-imm
; suboptimal
3220 ((prefix ,prefix
) (op ,opcode
)))
3221 (:printer ext-rex-xmm-xmm
/mem-imm
3222 ((prefix ,prefix
) (op ,opcode
))))
3223 `((:printer xmm-xmm
/mem-imm
((op ,opcode
)))
3224 (:printer rex-xmm-xmm
/mem-imm
((op ,opcode
)))))
3226 (aver (typep pattern
'(unsigned-byte 8)))
3227 (emit-regular-sse-inst segment dst src
,prefix
,opcode
)
3228 (emit-byte segment pattern
)))))
3229 (define-xmm-shuffle-sse-inst pshufd
#x66
#x70
)
3230 (define-xmm-shuffle-sse-inst pshufhw
#xf3
#x70
)
3231 (define-xmm-shuffle-sse-inst pshuflw
#xf2
#x70
)
3232 (define-xmm-shuffle-sse-inst shufpd
#x66
#xc6
)
3233 (define-xmm-shuffle-sse-inst shufps nil
#xc6
))
3235 ;; MASKMOVDQU (dst is DS:RDI)
3236 (define-instruction maskmovdqu
(segment src mask
)
3237 (:printer ext-xmm-xmm
/mem
3238 ((prefix #x66
) (op #xf7
)))
3239 (:printer ext-rex-xmm-xmm
/mem
3240 ((prefix #x66
) (op #xf7
)))
3242 (aver (xmm-register-p src
))
3243 (aver (xmm-register-p mask
))
3244 (emit-regular-sse-inst segment src mask
#x66
#xf7
)))
3246 (macrolet ((define-xmm-comparison-sse-inst (name prefix opcode
&optional name-prefix name-suffix
)
3247 (let ((printer (when name-prefix
3248 `'(,name-prefix cc
,name-suffix
:tab reg
", " reg
/mem
))))
3249 `(define-instruction ,name
(segment op x y
)
3251 `((:printer ext-xmm-xmm
/mem-cmp
3252 ((prefix ,prefix
) (op ,opcode
))
3253 ,@(and printer
`(,printer
)))
3254 (:printer ext-rex-xmm-xmm
/mem-cmp
3255 ((prefix ,prefix
) (op ,opcode
))
3256 ,@(and printer
`(,printer
))))
3257 `((:printer xmm-xmm
/mem-cmp
((op ,opcode
))
3258 ,@(and printer
`(,printer
)))
3259 (:printer rex-xmm-xmm
/mem-cmp
((op ,opcode
))
3260 ,@(and printer
`(,printer
)))))
3262 (let ((code (position op
*sse-conditions
*)))
3264 (emit-regular-sse-inst segment x y
,prefix
,opcode
)
3265 (emit-byte segment code
)))))))
3266 (define-xmm-comparison-sse-inst cmppd
#x66
#xc2
"CMP" "PD")
3267 (define-xmm-comparison-sse-inst cmpps nil
#xc2
"CMP" "PS")
3268 (define-xmm-comparison-sse-inst cmpsd
#xf2
#xc2
"CMP" "SD")
3269 (define-xmm-comparison-sse-inst cmpss
#xf3
#xc2
"CMP" "SS"))
3272 (macrolet ((define-movsd/ss-sse-inst
(name prefix
)
3273 `(define-instruction ,name
(segment dst src
)
3274 (:printer ext-xmm-xmm
/mem-dir
((prefix ,prefix
)
3276 (:printer ext-rex-xmm-xmm
/mem-dir
((prefix ,prefix
)
3279 (cond ((xmm-register-p dst
)
3280 (emit-sse-inst segment dst src
,prefix
#x10
3281 :operand-size
:do-not-set
))
3283 (aver (xmm-register-p src
))
3284 (emit-sse-inst segment src dst
,prefix
#x11
3285 :operand-size
:do-not-set
)))))))
3286 (define-movsd/ss-sse-inst movsd
#xf2
)
3287 (define-movsd/ss-sse-inst movss
#xf3
))
3290 (macrolet ((define-mov-sse-inst (name prefix opcode-from opcode-to
3291 &key force-to-mem reg-reg-name
)
3294 `(define-instruction ,reg-reg-name
(segment dst src
)
3296 (aver (xmm-register-p dst
))
3297 (aver (xmm-register-p src
))
3298 (emit-regular-sse-inst segment dst src
,prefix
,opcode-from
))))
3299 (define-instruction ,name
(segment dst src
)
3301 `((:printer ext-xmm-xmm
/mem
3302 ((prefix ,prefix
) (op ,opcode-from
)))
3303 (:printer ext-rex-xmm-xmm
/mem
3304 ((prefix ,prefix
) (op ,opcode-from
)))
3305 (:printer ext-xmm-xmm
/mem
3306 ((prefix ,prefix
) (op ,opcode-to
))
3307 '(:name
:tab reg
/mem
", " reg
))
3308 (:printer ext-rex-xmm-xmm
/mem
3309 ((prefix ,prefix
) (op ,opcode-to
))
3310 '(:name
:tab reg
/mem
", " reg
)))
3311 `((:printer xmm-xmm
/mem
3312 ((op ,opcode-from
)))
3313 (:printer rex-xmm-xmm
/mem
3314 ((op ,opcode-from
)))
3315 (:printer xmm-xmm
/mem
3317 '(:name
:tab reg
/mem
", " reg
))
3318 (:printer rex-xmm-xmm
/mem
3320 '(:name
:tab reg
/mem
", " reg
))))
3322 (cond ((xmm-register-p dst
)
3324 `(aver (not (or (register-p src
)
3325 (xmm-register-p src
)))))
3326 (emit-regular-sse-inst segment dst src
,prefix
,opcode-from
))
3328 (aver (xmm-register-p src
))
3330 `(aver (not (or (register-p dst
)
3331 (xmm-register-p dst
)))))
3332 (emit-regular-sse-inst segment src dst
,prefix
,opcode-to
))))))))
3334 (define-mov-sse-inst movapd
#x66
#x28
#x29
)
3335 (define-mov-sse-inst movaps nil
#x28
#x29
)
3336 (define-mov-sse-inst movdqa
#x66
#x6f
#x7f
)
3337 (define-mov-sse-inst movdqu
#xf3
#x6f
#x7f
)
3339 ;; use movhps for movlhps and movlps for movhlps
3340 (define-mov-sse-inst movhpd
#x66
#x16
#x17
:force-to-mem t
)
3341 (define-mov-sse-inst movhps nil
#x16
#x17
:reg-reg-name movlhps
)
3342 (define-mov-sse-inst movlpd
#x66
#x12
#x13
:force-to-mem t
)
3343 (define-mov-sse-inst movlps nil
#x12
#x13
:reg-reg-name movhlps
)
3344 (define-mov-sse-inst movupd
#x66
#x10
#x11
)
3345 (define-mov-sse-inst movups nil
#x10
#x11
))
3348 (define-instruction movq
(segment dst src
)
3349 (:printer ext-xmm-xmm
/mem
((prefix #xf3
) (op #x7e
)))
3350 (:printer ext-rex-xmm-xmm
/mem
((prefix #xf3
) (op #x7e
)))
3351 (:printer ext-xmm-xmm
/mem
((prefix #x66
) (op #xd6
))
3352 '(:name
:tab reg
/mem
", " reg
))
3353 (:printer ext-rex-xmm-xmm
/mem
((prefix #x66
) (op #xd6
))
3354 '(:name
:tab reg
/mem
", " reg
))
3356 (cond ((xmm-register-p dst
)
3357 (emit-sse-inst segment dst src
#xf3
#x7e
3358 :operand-size
:do-not-set
))
3360 (aver (xmm-register-p src
))
3361 (emit-sse-inst segment src dst
#x66
#xd6
3362 :operand-size
:do-not-set
)))))
3364 ;;; Instructions having an XMM register as the destination operand
3365 ;;; and a general-purpose register or a memory location as the source
3366 ;;; operand. The operand size is calculated from the source operand.
3368 ;;; MOVD - Move a 32- or 64-bit value from a general-purpose register or
3369 ;;; a memory location to the low order 32 or 64 bits of an XMM register
3370 ;;; with zero extension or vice versa.
3371 ;;; We do not support the MMX version of this instruction.
3372 (define-instruction movd
(segment dst src
)
3373 (:printer ext-xmm-reg
/mem
((prefix #x66
) (op #x6e
)))
3374 (:printer ext-rex-xmm-reg
/mem
((prefix #x66
) (op #x6e
)))
3375 (:printer ext-xmm-reg
/mem
((prefix #x66
) (op #x7e
))
3376 '(:name
:tab reg
/mem
", " reg
))
3377 (:printer ext-rex-xmm-reg
/mem
((prefix #x66
) (op #x7e
))
3378 '(:name
:tab reg
/mem
", " reg
))
3380 (cond ((xmm-register-p dst
)
3381 (emit-sse-inst segment dst src
#x66
#x6e
))
3383 (aver (xmm-register-p src
))
3384 (emit-sse-inst segment src dst
#x66
#x7e
)))))
3386 (macrolet ((define-integer-source-sse-inst (name prefix opcode
&key mem-only
)
3387 `(define-instruction ,name
(segment dst src
)
3389 `((:printer ext-xmm-reg
/mem
((prefix ,prefix
) (op ,opcode
)))
3390 (:printer ext-rex-xmm-reg
/mem
((prefix ,prefix
) (op ,opcode
))))
3391 `((:printer xmm-reg
/mem
((op ,opcode
)))
3392 (:printer rex-xmm-reg
/mem
((op ,opcode
)))))
3395 (aver (xmm-register-p dst
))
3397 `(aver (not (or (register-p src
)
3398 (xmm-register-p src
)))))
3399 (let ((src-size (operand-size src
)))
3400 (aver (or (eq src-size
:qword
) (eq src-size
:dword
))))
3401 (emit-sse-inst segment dst src
,prefix
,opcode
)))))
3402 (define-integer-source-sse-inst cvtsi2sd
#xf2
#x2a
)
3403 (define-integer-source-sse-inst cvtsi2ss
#xf3
#x2a
)
3404 ;; FIXME: memory operand is always a QWORD
3405 (define-integer-source-sse-inst cvtpi2pd
#x66
#x2a
:mem-only t
)
3406 (define-integer-source-sse-inst cvtpi2ps nil
#x2a
:mem-only t
))
3408 ;;; Instructions having a general-purpose register as the destination
3409 ;;; operand and an XMM register or a memory location as the source
3410 ;;; operand. The operand size is calculated from the destination
3413 (macrolet ((define-gpr-destination-sse-inst (name prefix opcode
&key reg-only
)
3414 `(define-instruction ,name
(segment dst src
)
3416 `((:printer ext-reg-xmm
/mem
((prefix ,prefix
) (op ,opcode
)))
3417 (:printer ext-rex-reg-xmm
/mem
((prefix ,prefix
) (op ,opcode
))))
3418 `((:printer reg-xmm
/mem
((op ,opcode
)))
3419 (:printer rex-reg-xmm
/mem
((op ,opcode
)))))
3421 (aver (register-p dst
))
3423 `(aver (xmm-register-p src
)))
3424 (let ((dst-size (operand-size dst
)))
3425 (aver (or (eq dst-size
:qword
) (eq dst-size
:dword
)))
3426 (emit-sse-inst segment dst src
,prefix
,opcode
3427 :operand-size dst-size
))))))
3428 (define-gpr-destination-sse-inst cvtsd2si
#xf2
#x2d
)
3429 (define-gpr-destination-sse-inst cvtss2si
#xf3
#x2d
)
3430 (define-gpr-destination-sse-inst cvttsd2si
#xf2
#x2c
)
3431 (define-gpr-destination-sse-inst cvttss2si
#xf3
#x2c
)
3432 (define-gpr-destination-sse-inst movmskpd
#x66
#x50
:reg-only t
)
3433 (define-gpr-destination-sse-inst movmskps nil
#x50
:reg-only t
)
3434 (define-gpr-destination-sse-inst pmovmskb
#x66
#xd7
:reg-only t
))
3436 ;;; Other SSE instructions
3438 ;; FIXME: is that right!?
3439 (define-instruction movnti
(segment dst src
)
3440 (:printer ext-reg-reg
/mem-no-width
((op #xc3
)))
3441 (:printer rex-ext-reg-reg
/mem-no-width
((op #xc3
)))
3443 (aver (not (or (register-p dst
)
3444 (xmm-register-p dst
))))
3445 (aver (register-p src
))
3446 (maybe-emit-rex-for-ea segment src dst
)
3447 (emit-byte segment
#x0f
)
3448 (emit-byte segment
#xc3
)
3449 (emit-ea segment dst
(reg-tn-encoding src
))))
3451 (define-instruction prefetch
(segment type src
)
3452 (:printer ext-reg
/mem-no-width
((op '(#x18
0)))
3453 '("PREFETCHNTA" :tab reg
/mem
))
3454 (:printer ext-reg
/mem-no-width
((op '(#x18
1)))
3455 '("PREFETCHT0" :tab reg
/mem
))
3456 (:printer ext-reg
/mem-no-width
((op '(#x18
2)))
3457 '("PREFETCHT1" :tab reg
/mem
))
3458 (:printer ext-reg
/mem-no-width
((op '(#x18
3)))
3459 '("PREFETCHT2" :tab reg
/mem
))
3460 (:printer rex-ext-reg
/mem-no-width
((op '(#x18
0)))
3461 '("PREFETCHNTA" :tab reg
/mem
))
3462 (:printer rex-ext-reg
/mem-no-width
((op '(#x18
1)))
3463 '("PREFETCHT0" :tab reg
/mem
))
3464 (:printer rex-ext-reg
/mem-no-width
((op '(#x18
2)))
3465 '("PREFETCHT1" :tab reg
/mem
))
3466 (:printer rex-ext-reg
/mem-no-width
((op '(#x18
3)))
3467 '("PREFETCHT2" :tab reg
/mem
))
3469 (aver (not (or (register-p src
)
3470 (xmm-register-p src
))))
3471 (aver (eq (operand-size src
) :byte
))
3472 (let ((type (position type
#(:nta
:t0
:t1
:t2
))))
3474 (maybe-emit-rex-for-ea segment src nil
)
3475 (emit-byte segment
#x0f
)
3476 (emit-byte segment
#x18
)
3477 (emit-ea segment src type
))))
3479 (define-instruction clflush
(segment src
)
3480 (:printer ext-reg
/mem-no-width
((op '(#xae
7))))
3481 (:printer rex-ext-reg
/mem-no-width
((op '(#xae
7))))
3483 (aver (not (or (register-p src
)
3484 (xmm-register-p src
))))
3485 (aver (eq (operand-size src
) :byte
))
3486 (maybe-emit-rex-for-ea segment src nil
)
3487 (emit-byte segment
#x0f
)
3488 (emit-byte segment
#x18
)
3489 (emit-ea segment src
7)))
3491 (macrolet ((define-fence-instruction (name last-byte
)
3492 `(define-instruction ,name
(segment)
3493 (:printer three-bytes
((op '(#x0f
#xae
,last-byte
))))
3495 (emit-byte segment
#x0f
)
3496 (emit-byte segment
#xae
)
3497 (emit-byte segment
,last-byte
)))))
3498 (define-fence-instruction lfence
#b11101000
)
3499 (define-fence-instruction mfence
#b11110000
)
3500 (define-fence-instruction sfence
#b11111000
))
3502 (define-instruction pause
(segment)
3503 (:printer two-bytes
((op '(#xf3
#x90
))))
3505 (emit-byte segment
#xf3
)
3506 (emit-byte segment
#x90
)))
3508 (define-instruction ldmxcsr
(segment src
)
3509 (:printer ext-reg
/mem-no-width
((op '(#xae
2))))
3510 (:printer rex-ext-reg
/mem-no-width
((op '(#xae
2))))
3512 (aver (not (or (register-p src
)
3513 (xmm-register-p src
))))
3514 (aver (eq (operand-size src
) :dword
))
3515 (maybe-emit-rex-for-ea segment src nil
)
3516 (emit-byte segment
#x0f
)
3517 (emit-byte segment
#xae
)
3518 (emit-ea segment src
2)))
3520 (define-instruction stmxcsr
(segment dst
)
3521 (:printer ext-reg
/mem-no-width
((op '(#xae
3))))
3522 (:printer rex-ext-reg
/mem-no-width
((op '(#xae
3))))
3524 (aver (not (or (register-p dst
)
3525 (xmm-register-p dst
))))
3526 (aver (eq (operand-size dst
) :dword
))
3527 (maybe-emit-rex-for-ea segment dst nil
)
3528 (emit-byte segment
#x0f
)
3529 (emit-byte segment
#xae
)
3530 (emit-ea segment dst
3)))
3534 (define-instruction cpuid
(segment)
3535 (:printer two-bytes
((op '(#b00001111
#b10100010
))))
3537 (emit-byte segment
#b00001111
)
3538 (emit-byte segment
#b10100010
)))
3540 (define-instruction rdtsc
(segment)
3541 (:printer two-bytes
((op '(#b00001111
#b00110001
))))
3543 (emit-byte segment
#b00001111
)
3544 (emit-byte segment
#b00110001
)))
3546 ;;;; Late VM definitions
3548 (defun canonicalize-inline-constant (constant &aux
(alignedp nil
))
3549 (let ((first (car constant
)))
3550 (when (eql first
:aligned
)
3553 (setf first
(car constant
)))
3555 (single-float (setf constant
(list :single-float first
)))
3556 (double-float (setf constant
(list :double-float first
)))
3557 ((complex single-float
)
3558 (setf constant
(list :complex-single-float first
)))
3559 ((complex double-float
)
3560 (setf constant
(list :complex-double-float first
)))))
3561 (destructuring-bind (type value
) constant
3563 ((:byte
:word
:dword
:qword
)
3564 (aver (integerp value
))
3567 (aver (base-char-p value
))
3568 (cons :byte
(char-code value
)))
3570 (aver (characterp value
))
3571 (cons :dword
(char-code value
)))
3573 (aver (typep value
'single-float
))
3574 (cons (if alignedp
:oword
:dword
)
3575 (ldb (byte 32 0) (single-float-bits value
))))
3577 (aver (typep value
'double-float
))
3578 (cons (if alignedp
:oword
:qword
)
3579 (ldb (byte 64 0) (logior (ash (double-float-high-bits value
) 32)
3580 (double-float-low-bits value
)))))
3581 ((:complex-single-float
)
3582 (aver (typep value
'(complex single-float
)))
3583 (cons (if alignedp
:oword
:qword
)
3585 (logior (ash (single-float-bits (imagpart value
)) 32)
3587 (single-float-bits (realpart value
)))))))
3589 (aver (integerp value
))
3590 (cons :oword value
))
3591 ((:complex-double-float
)
3592 (aver (typep value
'(complex double-float
)))
3594 (logior (ash (double-float-high-bits (imagpart value
)) 96)
3595 (ash (double-float-low-bits (imagpart value
)) 64)
3596 (ash (ldb (byte 32 0)
3597 (double-float-high-bits (realpart value
)))
3599 (double-float-low-bits (realpart value
))))))))
3601 (defun inline-constant-value (constant)
3602 (let ((label (gen-label))
3603 (size (ecase (car constant
)
3604 ((:byte
:word
:dword
:qword
) (car constant
))
3605 ((:oword
) :qword
))))
3606 (values label
(make-ea size
3607 :disp
(make-fixup nil
:code-object label
)))))
3609 (defun emit-constant-segment-header (constants optimize
)
3610 (declare (ignore constants
))
3611 (loop repeat
(if optimize
64 16) do
(inst byte
#x90
)))
3613 (defun size-nbyte (size)
3621 (defun sort-inline-constants (constants)
3622 (stable-sort constants
#'> :key
(lambda (constant)
3623 (size-nbyte (caar constant
)))))
3625 (defun emit-inline-constant (constant label
)
3626 (let ((size (size-nbyte (car constant
))))
3627 (emit-alignment (integer-length (1- size
)))
3629 (let ((val (cdr constant
)))
3631 do
(inst byte
(ldb (byte 8 0) val
))
3632 (setf val
(ash val -
8))))))