1 ; OpenRISC Basic Instruction Set 32-bit (ORBIS) -*- Scheme -*-
2 ; Copyright 2000-2014 Free Software Foundation, Inc.
3 ; Contributed for OR32 by Johan Rydberg, jrydberg@opencores.org
4 ; Modified by Julius Baxter, juliusbaxter@gmail.com
5 ; Modified by Peter Gavin, pgavin@gmail.com
7 ; This program is free software; you can redistribute it and/or modify
8 ; it under the terms of the GNU General Public License as published by
9 ; the Free Software Foundation; either version 3 of the License, or
10 ; (at your option) any later version.
12 ; This program is distributed in the hope that it will be useful,
13 ; but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 ; GNU General Public License for more details.
17 ; You should have received a copy of the GNU General Public License
18 ; along with this program; if not, see <http://www.gnu.org/licenses/>
22 ; Hardware for immediate operands
23 (dnh h-simm16 "16-bit signed immediate" ((MACH ORBIS-MACHS)) (immediate (INT 16)) () () ())
24 (dnh h-uimm16 "16-bit unsigned immediate" () (immediate (UINT 16)) () () ())
25 (dnh h-uimm6 "6-bit unsigned immediate" () (immediate (UINT 6)) () () ())
27 ; Hardware for the (internal) atomic registers
28 (dsh h-atomic-reserve "atomic reserve flag" () (register BI))
29 (dsh h-atomic-address "atomic reserve address" () (register SI))
31 ; Instruction classes.
32 (dnf f-opcode "insn opcode" ((MACH ORBIS-MACHS)) 31 6)
35 (dnf f-r1 "r1" ((MACH ORBIS-MACHS)) 25 5)
36 (dnf f-r2 "r2" ((MACH ORBIS-MACHS)) 20 5)
37 (dnf f-r3 "r3" ((MACH ORBIS-MACHS)) 15 5)
40 (dnf f-op-25-2 "op-25-2" ((MACH ORBIS-MACHS)) 25 2) ;; nop
41 (dnf f-op-25-5 "op-25-5" ((MACH ORBIS-MACHS)) 25 5) ;; sys, trap, *sync, sf*
42 (dnf f-op-16-1 "op-16-1" ((MACH ORBIS-MACHS)) 16 1) ;; movhi,macrc
43 (dnf f-op-7-4 "op-7-4" ((MACH ORBIS-MACHS)) 7 4)
44 (dnf f-op-3-4 "op-3-4" ((MACH ORBIS-MACHS)) 3 4)
45 (dnf f-op-9-2 "op-9-2" ((MACH ORBIS-MACHS)) 9 2) ;; alu ops upper opcode
46 (dnf f-op-9-4 "op-9-4" ((MACH ORBIS-MACHS)) 9 4) ;;
47 (dnf f-op-7-8 "op-7-8" ((MACH ORBIS-MACHS)) 7 8)
48 (dnf f-op-7-2 "op-7-2" ((MACH ORBIS-MACHS)) 7 2) ;; alu lower upper opc,shroti
51 (dnf f-resv-25-26 "resv-25-26" ((MACH ORBIS-MACHS) RESERVED) 25 26)
52 (dnf f-resv-25-10 "resv-25-10" ((MACH ORBIS-MACHS) RESERVED) 25 10)
53 (dnf f-resv-25-5 "resv-25-5" ((MACH ORBIS-MACHS) RESERVED) 25 5)
54 (dnf f-resv-23-8 "resv-23-8" ((MACH ORBIS-MACHS) RESERVED) 23 8)
55 (dnf f-resv-20-21 "resv-20-21" ((MACH ORBIS-MACHS) RESERVED) 20 21)
56 (dnf f-resv-20-5 "resv-20-5" ((MACH ORBIS-MACHS) RESERVED) 20 5)
57 (dnf f-resv-20-4 "resv-20-4" ((MACH ORBIS-MACHS) RESERVED) 20 4)
58 (dnf f-resv-15-8 "resv-15-8" ((MACH ORBIS-MACHS) RESERVED) 15 8)
59 (dnf f-resv-15-6 "resv-15-6" ((MACH ORBIS-MACHS) RESERVED) 15 6)
60 (dnf f-resv-10-11 "resv-10-11" ((MACH ORBIS-MACHS) RESERVED) 10 11)
61 (dnf f-resv-10-7 "resv-10-7" ((MACH ORBIS-MACHS) RESERVED) 10 7)
62 (dnf f-resv-10-3 "resv-10-3" ((MACH ORBIS-MACHS) RESERVED) 10 3)
63 (dnf f-resv-10-1 "resv-10-1" ((MACH ORBIS-MACHS) RESERVED) 10 1)
64 (dnf f-resv-7-4 "resv-7-4" ((MACH ORBIS-MACHS) RESERVED) 7 4)
65 (dnf f-resv-5-2 "resv-5-2" ((MACH ORBIS-MACHS) RESERVED) 5 2)
67 (dnf f-imm16-25-5 "imm16-25-5" ((MACH ORBIS-MACHS)) 25 5)
68 (dnf f-imm16-10-11 "imm16-10-11" ((MACH ORBIS-MACHS)) 10 11)
70 ; PC relative, 26-bit (2 shifted to right)
73 ((MACH ORBIS-MACHS) PCREL-ADDR)
77 ((value pc) (sra SI (sub IAI value pc) (const 2)))
78 ((value pc) (add IAI (sll IAI value (const 2)) pc))
82 (dnf f-uimm16 "uimm16" ((MACH ORBIS-MACHS)) 15 16)
83 (df f-simm16 "simm16" ((MACH ORBIS-MACHS) SIGN-OPT) 15 16 INT #f #f)
84 (dnf f-uimm6 "uimm6" ((MACH ORBIS-MACHS)) 5 6) ;; shroti
88 (comment "16-bit split unsigned immediate")
89 (attrs (MACH ORBIS-MACHS))
91 (subfields f-imm16-25-5 f-imm16-10-11)
93 (set (ifield f-imm16-25-5)
94 (and (srl (ifield f-uimm16-split)
97 (set (ifield f-imm16-10-11)
98 (and (ifield f-uimm16-split)
101 (set (ifield f-uimm16-split)
103 (or (sll (ifield f-imm16-25-5)
105 (ifield f-imm16-10-11)))))
109 (name f-simm16-split)
110 (comment "16-bit split signed immediate")
111 (attrs (MACH ORBIS-MACHS) SIGN-OPT)
113 (subfields f-imm16-25-5 f-imm16-10-11)
115 (set (ifield f-imm16-25-5)
116 (and (sra (ifield f-simm16-split)
119 (set (ifield f-imm16-10-11)
120 (and (ifield f-simm16-split)
123 (set (ifield f-simm16-split)
125 (or (sll (ifield f-imm16-25-5)
127 (ifield f-imm16-10-11)))))
132 ; insn-opcode: bits 31-26
133 (define-normal-insn-enum
134 insn-opcode "insn main opcode enums" ((MACH ORBIS-MACHS)) OPC_ f-opcode
141 ("SYSTRAPSYNCS" #x08)
185 (define-normal-insn-enum insn-opcode-systrapsyncs
186 "systrapsync insn opcode enums" ((MACH ORBIS-MACHS))
187 OPC_SYSTRAPSYNCS_ f-op-25-5
196 (define-normal-insn-enum insn-opcode-movehimacrc
197 "movhi/macrc insn opcode enums" ((MACH ORBIS-MACHS))
198 OPC_MOVHIMACRC_ f-op-16-1
204 (define-normal-insn-enum insn-opcode-mac
205 "multiply/accumulate insn opcode enums" ((MACH ORBIS-MACHS))
212 (define-normal-insn-enum insn-opcode-shorts
213 "shift/rotate insn opcode enums" ((MACH ORBIS-MACHS))
222 (define-normal-insn-enum insn-opcode-extbhs
223 "extend byte/half opcode enums" ((MACH ORBIS-MACHS))
232 (define-normal-insn-enum insn-opcode-extws
233 "extend word opcode enums" ((MACH ORBIS-MACHS))
240 (define-normal-insn-enum insn-opcode-alu-regreg
241 "alu reg/reg insn opcode enums" ((MACH ORBIS-MACHS))
242 OPC_ALU_REGREG_ f-op-3-4
261 (define-normal-insn-enum insn-opcode-setflag
262 "setflag insn opcode enums" ((MACH ORBIS-MACHS))
278 ; Instruction operands.
280 (dnop sys-sr "supervision register" ((MACH ORBIS-MACHS) SEM-ONLY) h-sys-sr f-nil)
281 (dnop sys-esr0 "exception supervision register 0" ((MACH ORBIS-MACHS) SEM-ONLY) h-sys-esr0 f-nil)
282 (dnop sys-epcr0 "exception PC register 0" ((MACH ORBIS-MACHS) SEM-ONLY) h-sys-epcr0 f-nil)
284 (dnop sys-sr-lee "SR little endian enable bit" ((MACH ORBIS-MACHS) SEM-ONLY) h-sys-sr-lee f-nil)
285 (dnop sys-sr-f "SR flag bit" ((MACH ORBIS-MACHS) SEM-ONLY) h-sys-sr-f f-nil)
286 (dnop sys-sr-cy "SR carry bit" ((MACH ORBIS-MACHS) SEM-ONLY) h-sys-sr-cy f-nil)
287 (dnop sys-sr-ov "SR overflow bit" ((MACH ORBIS-MACHS) SEM-ONLY) h-sys-sr-ov f-nil)
288 (dnop sys-sr-ove "SR overflow exception enable bit" ((MACH ORBIS-MACHS) SEM-ONLY) h-sys-sr-ove f-nil)
289 (dnop sys-cpucfgr-ob64s "CPUCFGR ORBIS64 supported bit" ((MACH ORBIS-MACHS) SEM-ONLY) h-sys-cpucfgr-ob64s f-nil)
290 (dnop sys-cpucfgr-nd "CPUCFGR no delay bit" ((MACH ORBIS-MACHS) SEM-ONLY) h-sys-cpucfgr-nd f-nil)
291 (dnop sys-fpcsr-rm "floating point round mode" ((MACH ORBIS-MACHS) SEM-ONLY) h-sys-fpcsr-rm f-nil)
293 (dnop mac-machi "MAC HI result register" ((MACH ORBIS-MACHS) SEM-ONLY) h-mac-machi f-nil)
294 (dnop mac-maclo "MAC LO result register" ((MACH ORBIS-MACHS) SEM-ONLY) h-mac-maclo f-nil)
296 (dnop atomic-reserve "atomic reserve flag" ((MACH ORBIS-MACHS) SEM-ONLY) h-atomic-reserve f-nil)
297 (dnop atomic-address "atomic address" ((MACH ORBIS-MACHS) SEM-ONLY) h-atomic-address f-nil)
299 (dnop uimm6 "uimm6" ((MACH ORBIS-MACHS)) h-uimm6 f-uimm6)
301 (dnop rD "destination register" ((MACH ORBIS-MACHS)) h-gpr f-r1)
302 (dnop rA "source register A" ((MACH ORBIS-MACHS)) h-gpr f-r2)
303 (dnop rB "source register B" ((MACH ORBIS-MACHS)) h-gpr f-r3)
307 (comment "pc-rel 26 bit")
308 (attrs (MACH ORBIS-MACHS))
311 (handlers (parse "disp26"))
316 (comment "16-bit signed immediate")
317 (attrs (MACH ORBIS-MACHS) SIGN-OPT)
320 (handlers (parse "simm16"))
325 (comment "16-bit unsigned immediate")
326 (attrs (MACH ORBIS-MACHS))
329 (handlers (parse "uimm16"))
334 (comment "split 16-bit signed immediate")
335 (attrs (MACH ORBIS-MACHS) SIGN-OPT)
337 (index f-simm16-split)
338 (handlers (parse "simm16"))
343 (comment "split 16-bit unsigned immediate")
344 (attrs (MACH ORBIS-MACHS))
346 (index f-uimm16-split)
347 (handlers (parse "uimm16"))
352 ; Branch releated instructions
354 (define-pmacro (cti-link-return)
355 (set IAI (reg h-gpr 9) (add pc (if sys-cpucfgr-nd 4 8)))
357 (define-pmacro (cti-transfer-control condition target)
358 ;; this mess is necessary because we're
359 ;; skipping the delay slot, but it's
360 ;; actually the start of the next basic
364 (delay 1 (set IAI pc target))
366 (delay 1 (set IAI pc (add pc 4))))
386 (.splice (MACH ORBIS-MACHS) DELAYED-CTI NOT-IN-DELAY-SLOT (.unsplice cti-attrs))
397 "jump (pc-relative iaddr)"
398 (!COND-CTI UNCOND-CTI)
402 (cti-transfer-control 1 disp26)
408 "jump and link (pc-relative iaddr)"
409 (!COND-CTI UNCOND-CTI)
415 (cti-transfer-control 1 disp26)
422 "jump register (absolute iaddr)"
423 (!COND-CTI UNCOND-CTI)
425 (+ OPC_JR (f-resv-25-10 0) rB (f-resv-10-11 0))
427 (cti-transfer-control 1 rB)
433 "jump register and link (absolute iaddr)"
434 (!COND-CTI UNCOND-CTI)
436 (+ OPC_JALR (f-resv-25-10 0) rB (f-resv-10-11 0) )
440 (cti-transfer-control 1 rB)
447 "branch if condition bit not set (pc relative iaddr)"
448 (COND-CTI !UNCOND-CTI)
452 (cti-transfer-control (not sys-sr-f) disp26)
458 "branch if condition bit set (pc relative iaddr)"
459 (COND-CTI !UNCOND-CTI)
463 (cti-transfer-control sys-sr-f disp26)
467 (dni l-trap "trap (exception)"
468 ((MACH ORBIS-MACHS) NOT-IN-DELAY-SLOT)
470 (+ OPC_SYSTRAPSYNCS OPC_SYSTRAPSYNCS_TRAP (f-resv-20-5 0) uimm16)
471 ; Do exception entry handling in C function, PC set based on SR state
472 (raise-exception EXCEPT-TRAP)
477 (dni l-sys "syscall (exception)"
478 ; This function may not be in delay slot
479 ((MACH ORBIS-MACHS) NOT-IN-DELAY-SLOT)
482 (+ OPC_SYSTRAPSYNCS OPC_SYSTRAPSYNCS_SYSCALL (f-resv-20-5 0) uimm16)
483 ; Do exception entry handling in C function, PC set based on SR state
484 (raise-exception EXCEPT-SYSCALL)
488 (dni l-msync "memory sync"
491 (+ OPC_SYSTRAPSYNCS OPC_SYSTRAPSYNCS_MSYNC (f-resv-20-21 0))
496 (dni l-psync "pipeline sync"
499 (+ OPC_SYSTRAPSYNCS OPC_SYSTRAPSYNCS_PSYNC (f-resv-20-21 0))
504 (dni l-csync "context sync"
507 (+ OPC_SYSTRAPSYNCS OPC_SYSTRAPSYNCS_CSYNC (f-resv-20-21 0))
512 (dni l-rfe "return from exception"
513 ; This function may not be in delay slot
514 ((MACH ORBIS-MACHS) NOT-IN-DELAY-SLOT FORCED-CTI)
517 (+ OPC_RFE (f-resv-25-26 0))
518 (c-call VOID "@cpu@_rfe")
525 ; l.nop with immediate must be first so it handles all l.nops in sim
526 (dni l-nop-imm "nop uimm16"
529 (+ OPC_NOP (f-op-25-2 #x1) (f-resv-23-8 0) uimm16)
530 (c-call VOID "@cpu@_nop" (zext UWI uimm16))
534 (if (application-is? SIMULATOR)
540 (+ OPC_NOP (f-op-25-2 #x1) (f-resv-23-8 0) uimm16)
547 (dni l-movhi "movhi reg/uimm16"
549 "l.movhi $rD,$uimm16"
550 (+ OPC_MOVHIMACRC rD (f-resv-20-4 0) OPC_MOVHIMACRC_MOVHI uimm16)
551 (set UWI rD (sll UWI (zext UWI uimm16) (const 16)))
555 (dni l-macrc "macrc reg"
558 (+ OPC_MOVHIMACRC rD (f-resv-20-4 0) OPC_MOVHIMACRC_MACRC (f-uimm16 0))
560 (set UWI rD mac-maclo)
561 (set UWI mac-maclo 0)
562 (set UWI mac-machi 0)
568 ; System releated instructions
572 "l.mfspr $rD,$rA,${uimm16}"
573 (+ OPC_MFSPR rD rA uimm16)
574 (set UWI rD (c-call UWI "@cpu@_mfspr" (or rA (zext UWI uimm16))))
580 "l.mtspr $rA,$rB,${uimm16-split}"
581 (+ OPC_MTSPR rA rB uimm16-split )
582 (c-call VOID "@cpu@_mtspr" (or rA (zext WI uimm16-split)) rB)
588 (define-pmacro (load-store-addr base offset size)
589 (c-call AI "@cpu@_make_load_store_addr" base (ext SI offset) size))
591 (dni l-lwz "l.lwz reg/simm16(reg)"
593 "l.lwz $rD,${simm16}($rA)"
594 (+ OPC_LWZ rD rA simm16)
595 (set UWI rD (zext UWI (mem USI (load-store-addr rA simm16 4))))
600 (dni l-lws "l.lws reg/simm16(reg)"
602 "l.lws $rD,${simm16}($rA)"
603 (+ OPC_LWS rD rA simm16)
604 (set WI rD (ext WI (mem SI (load-store-addr rA simm16 4))))
608 (dni l-lwa "l.lwa reg/simm16(reg)"
610 "l.lwa $rD,${simm16}($rA)"
611 (+ OPC_LWA rD rA simm16)
613 (set UWI rD (zext UWI (mem USI (load-store-addr rA simm16 4))))
614 (set atomic-reserve (const 1))
615 (set atomic-address (load-store-addr rA simm16 4))
620 (dni l-lbz "l.lbz reg/simm16(reg)"
622 "l.lbz $rD,${simm16}($rA)"
623 (+ OPC_LBZ rD rA simm16)
624 (set UWI rD (zext UWI (mem UQI (load-store-addr rA simm16 1))))
628 (dni l-lbs "l.lbs reg/simm16(reg)"
630 "l.lbs $rD,${simm16}($rA)"
631 (+ OPC_LBS rD rA simm16)
632 (set WI rD (ext WI (mem QI (load-store-addr rA simm16 1))))
636 (dni l-lhz "l.lhz reg/simm16(reg)"
638 "l.lhz $rD,${simm16}($rA)"
639 (+ OPC_LHZ rD simm16 rA)
640 (set UWI rD (zext UWI (mem UHI (load-store-addr rA simm16 2))))
644 (dni l-lhs "l.lhs reg/simm16(reg)"
646 "l.lhs $rD,${simm16}($rA)"
647 (+ OPC_LHS rD rA simm16)
648 (set WI rD (ext WI (mem HI (load-store-addr rA simm16 2))))
655 (define-pmacro (store-insn mnemonic opc-op mode size)
657 (dni (.sym l- mnemonic)
658 (.str "l." mnemonic " simm16(reg)/reg")
660 (.str "l." mnemonic " ${simm16-split}($rA),$rB")
661 (+ opc-op rA rB simm16-split)
662 (sequence ((SI addr))
663 (set addr (load-store-addr rA simm16-split size))
664 (set mode (mem mode addr) (trunc mode rB))
665 (if (eq (and addr #xffffffc) atomic-address)
666 (set atomic-reserve (const 0))
674 (store-insn sw OPC_SW USI 4)
675 (store-insn sb OPC_SB UQI 1)
676 (store-insn sh OPC_SH UHI 2)
678 (dni l-swa "l.swa simm16(reg)/reg"
680 "l.swa ${simm16-split}($rA),$rB"
681 (+ OPC_SWA rA rB simm16)
682 (sequence ((SI addr) (BI flag))
683 (set addr (load-store-addr rA simm16-split 4))
684 (set sys-sr-f (and atomic-reserve (eq addr atomic-address)))
686 (set USI (mem USI addr) (trunc USI rB))
688 (set atomic-reserve (const 0))
694 ; Shift and rotate instructions
696 (define-pmacro (shift-insn mnemonic)
698 (dni (.sym l- mnemonic)
699 (.str "l." mnemonic " reg/reg/reg")
701 (.str "l." mnemonic " $rD,$rA,$rB")
702 (+ OPC_ALU rD rA rB (f-resv-10-3 0) (.sym OPC_SHROTS_ (.upcase mnemonic)) (f-resv-5-2 0)
703 OPC_ALU_REGREG_SHROT )
704 (set UWI rD (mnemonic rA rB))
707 (dni (.sym l- mnemonic "i")
708 (.str "l." mnemonic " reg/reg/uimm6")
710 (.str "l." mnemonic "i $rD,$rA,${uimm6}")
711 (+ OPC_SHROTI rD rA (f-resv-15-8 0) (.sym OPC_SHROTS_ (.upcase mnemonic)) uimm6)
712 (set rD (mnemonic rA uimm6))
727 (define-pmacro (alu-insn mnemonic)
729 (dni (.sym l- mnemonic)
730 (.str "l." mnemonic " reg/reg/reg")
732 (.str "l." mnemonic " $rD,$rA,$rB")
733 (+ OPC_ALU rD rA rB (f-resv-10-7 0) (.sym OPC_ALU_REGREG_ (.upcase mnemonic)))
734 (set rD (mnemonic rA rB))
744 (define-pmacro (alu-carry-insn mnemonic)
746 (dni (.sym l- mnemonic)
747 (.str "l." mnemonic " reg/reg/reg")
749 (.str "l." mnemonic " $rD,$rA,$rB")
750 (+ OPC_ALU rD rA rB (f-resv-10-7 #x00) (.sym OPC_ALU_REGREG_ (.upcase mnemonic)))
753 (set BI sys-sr-cy ((.sym mnemonic "c-cflag") WI rA rB 0))
754 (set BI sys-sr-ov ((.sym mnemonic "c-oflag") WI rA rB 0))
755 (set rD (mnemonic WI rA rB))
757 (if (andif sys-sr-ov sys-sr-ove)
758 (raise-exception EXCEPT-RANGE))
768 (dni (l-addc) "l.addc reg/reg/reg"
770 ("l.addc $rD,$rA,$rB")
771 (+ OPC_ALU rD rA rB (f-resv-10-7 #x00) OPC_ALU_REGREG_ADDC)
773 (sequence ((BI tmp-sys-sr-cy))
774 (set BI tmp-sys-sr-cy sys-sr-cy)
775 (set BI sys-sr-cy (addc-cflag WI rA rB tmp-sys-sr-cy))
776 (set BI sys-sr-ov (addc-oflag WI rA rB tmp-sys-sr-cy))
777 (set rD (addc WI rA rB tmp-sys-sr-cy))
779 (if (andif sys-sr-ov sys-sr-ove)
780 (raise-exception EXCEPT-RANGE))
785 (dni (l-mul) "l.mul reg/reg/reg"
787 ("l.mul $rD,$rA,$rB")
788 (+ OPC_ALU rD rA rB (f-resv-10-7 #x30) OPC_ALU_REGREG_MUL)
791 ; 2's complement overflow
792 (set BI sys-sr-ov (mul-o2flag WI rA rB))
793 ; 1's complement overflow
794 (set BI sys-sr-cy (mul-o1flag WI rA rB))
795 (set rD (mul WI rA rB))
797 (if (andif sys-sr-ov sys-sr-ove)
798 (raise-exception EXCEPT-RANGE))
803 (dni (l-mulu) "l.mulu reg/reg/reg"
805 ("l.mulu $rD,$rA,$rB")
806 (+ OPC_ALU rD rA rB (f-resv-10-7 #x30) OPC_ALU_REGREG_MULU)
809 ; 2's complement overflow
811 ; 1's complement overflow
812 (set BI sys-sr-cy (mul-o1flag UWI rA rB))
813 (set rD (mul UWI rA rB))
815 (if (andif sys-sr-ov sys-sr-ove)
816 (raise-exception EXCEPT-RANGE))
821 (dni l-div "divide (signed)"
824 (+ OPC_ALU rD rA rB (f-resv-10-7 #x30) OPC_ALU_REGREG_DIV)
829 (set WI rD (div WI rA rB))
834 (if (andif sys-sr-cy sys-sr-ove)
835 (raise-exception EXCEPT-RANGE))
840 (dni l-divu "divide (unsigned)"
843 (+ OPC_ALU rD rA rB (f-resv-10-7 #x30) OPC_ALU_REGREG_DIVU)
848 (set rD (udiv UWI rA rB))
853 (if (andif sys-sr-cy sys-sr-ove)
854 (raise-exception EXCEPT-RANGE))
859 (dni l-ff1 "find first '1'"
862 (+ OPC_ALU rD rA rB (f-resv-10-7 #x00) OPC_ALU_REGREG_FFL1)
863 (set rD (c-call UWI "@cpu@_ff1" rA))
867 (dni l-fl1 "find last '1'"
870 (+ OPC_ALU rD rA rB (f-resv-10-7 #x10) OPC_ALU_REGREG_FFL1)
871 (set rD (c-call UWI "@cpu@_fl1" rA))
876 (define-pmacro (alu-insn-simm mnemonic)
878 (dni (.sym l- mnemonic "i")
879 (.str "l." mnemonic " reg/reg/simm16")
881 (.str "l." mnemonic "i $rD,$rA,$simm16")
882 (+ (.sym OPC_ (.upcase mnemonic) "I") rD rA simm16)
883 (set rD (mnemonic rA (ext WI simm16)))
889 (define-pmacro (alu-insn-uimm mnemonic)
891 (dni (.sym l- mnemonic "i")
892 (.str "l." mnemonic " reg/reg/uimm16")
894 (.str "l." mnemonic "i $rD,$rA,$uimm16")
895 (+ (.sym OPC_ (.upcase mnemonic) "I") rD rA uimm16)
896 (set rD (mnemonic rA (zext UWI uimm16)))
906 (define-pmacro (alu-carry-insn-simm mnemonic)
908 (dni (.sym l- mnemonic "i")
909 (.str "l." mnemonic "i reg/reg/simm16")
911 (.str "l." mnemonic "i $rD,$rA,$simm16")
912 (+ (.sym OPC_ (.upcase mnemonic) "I") rD rA simm16)
915 (set BI sys-sr-cy ((.sym mnemonic "c-cflag") WI rA (ext WI simm16) 0))
916 (set BI sys-sr-ov ((.sym mnemonic "c-oflag") WI rA (ext WI simm16) 0))
917 (set rD (mnemonic WI rA (ext WI simm16)))
919 (if (andif sys-sr-ov sys-sr-ove)
920 (raise-exception EXCEPT-RANGE))
927 (alu-carry-insn-simm add)
930 ("l.addic reg/reg/simm16")
932 ("l.addic $rD,$rA,$simm16")
933 (+ OPC_ADDIC rD rA simm16)
935 (sequence ((BI tmp-sys-sr-cy))
936 (set BI tmp-sys-sr-cy sys-sr-cy)
937 (set BI sys-sr-cy (addc-cflag WI rA (ext WI simm16) tmp-sys-sr-cy))
938 (set BI sys-sr-ov (addc-oflag WI rA (ext WI simm16) tmp-sys-sr-cy))
939 (set WI rD (addc WI rA (ext WI simm16) tmp-sys-sr-cy))
941 (if (andif sys-sr-ov sys-sr-ove)
942 (raise-exception EXCEPT-RANGE))
948 "l.muli reg/reg/simm16"
950 ("l.muli $rD,$rA,$simm16")
951 (+ OPC_MULI rD rA simm16)
954 ; 2's complement overflow
955 (set sys-sr-ov (mul-o2flag WI rA (ext WI simm16)))
956 ; 1's complement overflow
957 (set sys-sr-cy (mul-o1flag UWI rA (ext UWI simm16)))
958 (set rD (mul WI rA (ext WI simm16)))
960 (if (andif sys-sr-ov sys-sr-ove)
961 (raise-exception EXCEPT-RANGE))
966 (define-pmacro (extbh-insn mnemonic extop extmode truncmode)
968 (dni (.sym l- mnemonic)
969 (.str "l." mnemonic " reg/reg")
971 (.str "l." mnemonic " $rD,$rA")
972 (+ OPC_ALU rD rA (f-resv-15-6 0) (.sym OPC_EXTBHS_ (.upcase mnemonic)) (f-resv-5-2 0) OPC_ALU_REGREG_EXTBH)
973 (set rD (extop extmode (trunc truncmode rA)))
979 (extbh-insn exths ext WI HI)
980 (extbh-insn extbs ext WI QI)
981 (extbh-insn exthz zext UWI UHI)
982 (extbh-insn extbz zext UWI UQI)
984 (define-pmacro (extw-insn mnemonic extop extmode truncmode)
986 (dni (.sym l- mnemonic)
987 (.str "l." mnemonic " reg/reg")
989 (.str "l." mnemonic " $rD,$rA")
990 (+ OPC_ALU rD rA (f-resv-15-6 0) (.sym OPC_EXTWS_ (.upcase mnemonic)) (f-resv-5-2 0) OPC_ALU_REGREG_EXTW)
991 (set rD (extop extmode (trunc truncmode rA)))
997 (extw-insn extws ext WI SI)
998 (extw-insn extwz zext USI USI)
1001 "l.cmov reg/reg/reg"
1002 ((MACH ORBIS-MACHS))
1003 "l.cmov $rD,$rA,$rB"
1004 (+ OPC_ALU rD rA rB (f-resv-10-1 0) (f-op-9-2 0) (f-resv-7-4 0) OPC_ALU_REGREG_CMOV)
1012 ; Compare instructions
1015 (define-pmacro (sf-insn op)
1017 (dni (.sym l- "sf" op "s") ; l-sfgts
1018 (.str "l.sf" op "s reg/reg") ; "l.sfgts reg/reg"
1019 ((MACH ORBIS-MACHS))
1020 (.str "l.sf" op "s $rA,$rB") ; "l.sfgts $rA,$rB"
1021 (+ OPC_SF (.sym "OPC_SF_" (.upcase op) "S") rA rB (f-resv-10-11 0)) ; (+ OPC_SF OPC_SF_GTS rA rB (f-resv-10-11 0))
1022 (set sys-sr-f (op WI rA rB)) ; (set sys-sr-f (gt WI rA rB))
1025 (dni (.sym l- "sf" op "si") ; l-sfgtsi
1026 (.str "l.sf" op "si reg/simm16") ; "l.sfgtsi reg/simm16"
1027 ((MACH ORBIS-MACHS))
1028 (.str "l.sf" op "si $rA,$simm16") ; "l.sfgtsi $rA,$simm16"
1029 (+ OPC_SFI (.sym "OPC_SF_" (.upcase op) "S") rA simm16) ; (+ OPC_SFI OPC_SF_GTS rA simm16)
1030 (set sys-sr-f (op WI rA (ext WI simm16))) ; (set sys-sr-f (gt WI rA (ext WI simm16)))
1033 (dni (.sym l- "sf" op "u") ; l-sfgtu
1034 (.str "l.sf" op "u reg/reg") ; "l.sfgtu reg/reg"
1035 ((MACH ORBIS-MACHS))
1036 (.str "l.sf" op "u $rA,$rB") ; "l.sfgtu $rA,$rB"
1037 (+ OPC_SF (.sym "OPC_SF_" (.upcase op) "U") rA rB (f-resv-10-11 0)) ; (+ OPC_SF OPC_SF_GTU rA rB (f-resv-10-11 0))
1038 (set sys-sr-f ((.sym op "u") WI rA rB)) ; (set sys-sr-f (gtu WI rA rB))
1041 ; immediate is sign extended even for unsigned compare
1042 (dni (.sym l- "sf" op "ui") ; l-sfgtui
1043 (.str "l.sf" op "ui reg/simm16") ; "l.sfgtui reg/uimm16"
1044 ((MACH ORBIS-MACHS))
1045 (.str "l.sf" op "ui $rA,$simm16") ; "l.sfgtui $rA,$simm16"
1046 (+ OPC_SFI (.sym "OPC_SF_" (.upcase op) "U") rA simm16) ; (+ OPC_SFI OPC_SF_GTU rA simm16)
1047 (set sys-sr-f ((.sym op "u") WI rA (ext WI simm16))) ; (set sys-sr-f (gtu WI rA (ext WI simm16)))
1059 (define-pmacro (sf-insn-eq op)
1061 (dni (.sym l- "sf" op)
1062 (.str "l." op " reg/reg")
1063 ((MACH ORBIS-MACHS))
1064 (.str "l.sf" op " $rA,$rB")
1065 (+ OPC_SF (.sym "OPC_SF_" (.upcase op)) rA rB (f-resv-10-11 0))
1066 (set sys-sr-f (op WI rA rB))
1069 (dni (.sym l- "sf" op "i")
1070 (.str "l.sf" op "i reg/simm16")
1071 ((MACH ORBIS-MACHS))
1072 (.str "l.sf" op "i $rA,$simm16")
1073 (+ OPC_SFI (.sym "OPC_SF_" (.upcase op)) rA simm16)
1074 (set sys-sr-f (op WI rA (ext WI simm16)))
1085 ((MACH ORBIS-MACHS))
1087 (+ OPC_MAC (f-op-25-5 0) rA rB (f-resv-10-7 0) OPC_MAC_MAC)
1088 (sequence ((WI prod) (DI result))
1089 (set WI prod (mul WI rA rB))
1090 (set DI result (add (join DI SI mac-machi mac-maclo) (ext DI prod)))
1091 (set SI mac-machi (subword SI result 0))
1092 (set SI mac-maclo (subword SI result 1))
1099 ((MACH ORBIS-MACHS))
1101 (+ OPC_MAC (f-op-25-5 0) rA rB (f-resv-10-7 0) OPC_MAC_MSB)
1102 (sequence ((WI prod) (DI result))
1103 (set WI prod (mul WI rA rB))
1104 (set DI result (sub (join DI SI mac-machi mac-maclo) (ext DI prod)))
1105 (set SI mac-machi (subword SI result 0))
1106 (set SI mac-maclo (subword SI result 1))
1113 ((MACH ORBIS-MACHS))
1114 "l.maci $rA,${simm16}"
1115 (+ OPC_MACI (f-resv-25-5 0) rA simm16)
1116 (sequence ((WI prod) (DI result))
1117 (set WI prod (mul WI (ext WI simm16) rA))
1118 (set DI result (add (join DI SI mac-machi mac-maclo) (ext DI prod)))
1119 (set SI mac-machi (subword SI result 0))
1120 (set SI mac-maclo (subword SI result 1))
1125 (define-pmacro (cust-insn cust-num)
1127 (dni (.sym l- "cust" cust-num)
1128 (.str "l.cust" cust-num)
1129 ((MACH ORBIS-MACHS))
1130 (.str "l.cust" cust-num)
1131 (+ (.sym OPC_CUST cust-num) (f-resv-25-26 0))