1 /* file: "dispatch.c" */
4 * Copyright 2004-2009 by Marc Feeley and Vincent St-Amour, All Rights Reserved.
7 #include "picobit-vm.h"
10 env
= cons (arg1
, env
);
15 obj o
= ram_get_car (env
);
16 env
= ram_get_cdr (env
);
20 void pop_procedure () {
24 if (!RAM_CLOSURE(arg1
))
25 TYPE_ERROR("pop_procedure.0", "procedure");
27 entry
= ram_get_entry (arg1
) + CODE_START
;
29 else if (IN_ROM(arg1
)) {
30 if (!ROM_CLOSURE(arg1
))
31 TYPE_ERROR("pop_procedure.1", "procedure");
33 entry
= rom_get_entry (arg1
) + CODE_START
;
36 TYPE_ERROR("pop_procedure.2", "procedure");
39 void handle_arity_and_rest_param () {
42 np
= rom_get (entry
++);
44 if ((np
& 0x80) == 0) {
46 ERROR("handle_arity_and_rest_param.0", "wrong number of arguments");
52 ERROR("handle_arity_and_rest_param.1", "wrong number of arguments");
59 arg3
= cons (arg4
, arg3
);
65 arg1
= cons (arg3
, arg1
);
74 arg1
= cons (arg3
, arg1
);
83 // the second half is a closure
84 arg3
= alloc_ram_cell_init (CLOSURE_FIELD0
| (pc
>> 11),
86 ((pc
& 0x0007) << 5) | (env
>> 8),
88 cont
= alloc_ram_cell_init (COMPOSITE_FIELD0
| (cont
>> 8),
90 CONTINUATION_FIELD2
| (arg3
>> 8),
96 pc
= rom_get (CODE_START
+2);
97 pc
= (CODE_START
+ 4) + (pc
<< 2);
99 glovars
= rom_get (CODE_START
+3); // number of global variables
105 /***************************************************************************/
106 CASE(PUSH_CONSTANT1
);
108 IF_TRACE(printf(" (push-constant "); show (bytecode_lo4
); printf (")\n"));
116 /***************************************************************************/
117 CASE(PUSH_CONSTANT2
);
119 IF_TRACE(printf(" (push-constant "); show (bytecode_lo4
+16); printf (")\n"));
120 arg1
= bytecode_lo4
+16;
126 /***************************************************************************/
129 IF_TRACE(printf(" (push-stack %d)\n", bytecode_lo4
));
133 while (bytecode_lo4
!= 0) {
134 arg1
= ram_get_cdr (arg1
);
138 arg1
= ram_get_car (arg1
);
144 /***************************************************************************/
147 IF_TRACE(printf(" (push-stack %d)\n", bytecode_lo4
+16));
153 while (bytecode_lo4
!= 0) {
154 arg1
= ram_get_cdr (arg1
);
158 arg1
= ram_get_car (arg1
);
164 /***************************************************************************/
167 IF_TRACE(printf(" (push-global %d)\n", bytecode_lo4
));
169 arg1
= get_global (bytecode_lo4
);
175 /***************************************************************************/
178 IF_TRACE(printf(" (set-global %d)\n", bytecode_lo4
));
180 set_global (bytecode_lo4
, POP());
184 /***************************************************************************/
187 IF_TRACE(printf(" (call %d)\n", bytecode_lo4
));
192 handle_arity_and_rest_param ();
203 /***************************************************************************/
206 IF_TRACE(printf(" (jump %d)\n", bytecode_lo4
));
211 handle_arity_and_rest_param ();
221 /***************************************************************************/
224 switch (bytecode_lo4
) {
225 case 0: // call-toplevel
226 FETCH_NEXT_BYTECODE();
229 FETCH_NEXT_BYTECODE();
231 IF_TRACE(printf(" (call-toplevel 0x%04x)\n",
232 ((arg2
<< 8) | bytecode
) + CODE_START
));
234 entry
= (arg2
<< 8) + bytecode
+ CODE_START
;
237 na
= rom_get (entry
++);
250 case 1: // jump-toplevel
251 FETCH_NEXT_BYTECODE();
254 FETCH_NEXT_BYTECODE();
256 IF_TRACE(printf(" (jump-toplevel 0x%04x)\n",
257 ((arg2
<< 8) | bytecode
) + CODE_START
));
259 entry
= (arg2
<< 8) + bytecode
+ CODE_START
;
262 na
= rom_get (entry
++);
275 FETCH_NEXT_BYTECODE();
278 FETCH_NEXT_BYTECODE();
280 IF_TRACE(printf(" (goto 0x%04x)\n",
281 (arg2
<< 8) + bytecode
+ CODE_START
));
283 pc
= (arg2
<< 8) + bytecode
+ CODE_START
;
287 case 3: // goto-if-false
288 FETCH_NEXT_BYTECODE();
291 FETCH_NEXT_BYTECODE();
293 IF_TRACE(printf(" (goto-if-false 0x%04x)\n",
294 (arg2
<< 8) + bytecode
+ CODE_START
));
296 if (POP() == OBJ_FALSE
)
297 pc
= (arg2
<< 8) + bytecode
+ CODE_START
;
302 FETCH_NEXT_BYTECODE();
305 FETCH_NEXT_BYTECODE();
307 IF_TRACE(printf(" (closure 0x%04x)\n", (arg2
<< 8) | bytecode
));
311 entry
= (arg2
<< 8) | bytecode
;
314 alloc_ram_cell_init (CLOSURE_FIELD0
| (arg2
>> 3),
315 ((arg2
& 0x07) << 5) | (bytecode
>> 3),
316 ((bytecode
& 0x07) << 5) | ((arg3
& 0x1f00) >> 8),
327 case 5: // call-toplevel-short
328 FETCH_NEXT_BYTECODE(); // TODO the short version have a lot in common with the long ones, abstract ?
329 // TODO short instructions don't work at the moment
330 IF_TRACE(printf(" (call-toplevel-short 0x%04x)\n",
331 pc
+ bytecode
+ CODE_START
));
333 entry
= pc
+ bytecode
+ CODE_START
;
336 na
= rom_get (entry
++);
348 case 6: // jump-toplevel-short
349 FETCH_NEXT_BYTECODE();
351 IF_TRACE(printf(" (jump-toplevel-short 0x%04x)\n",
352 pc
+ bytecode
+ CODE_START
));
354 entry
= pc
+ bytecode
+ CODE_START
;
357 na
= rom_get (entry
++);
368 case 7: // goto-short
369 FETCH_NEXT_BYTECODE();
371 IF_TRACE(printf(" (goto-short 0x%04x)\n", pc
+ bytecode
+ CODE_START
));
373 pc
= pc
+ bytecode
+ CODE_START
;
377 case 8: // goto-if-false-short
378 FETCH_NEXT_BYTECODE();
380 IF_TRACE(printf(" (goto-if-false-short 0x%04x)\n",
381 pc
+ bytecode
+ CODE_START
));
383 if (POP() == OBJ_FALSE
)
384 pc
= pc
+ bytecode
+ CODE_START
;
388 case 9: // closure-short
389 FETCH_NEXT_BYTECODE();
391 IF_TRACE(printf(" (closure-short 0x%04x)\n", pc
+ bytecode
));
395 entry
= pc
+ bytecode
;
397 arg1
= alloc_ram_cell_init (CLOSURE_FIELD0
| (arg2
>> 3),
398 ((arg2
& 0x07) << 5) | (bytecode
>> 3),
399 ((bytecode
&0x07) <<5) |((arg3
&0x1f00) >>8),
419 case 14: // push_global [long]
420 FETCH_NEXT_BYTECODE();
422 IF_TRACE(printf(" (push-global [long] %d)\n", bytecode
));
424 arg1
= get_global (bytecode
);
430 case 15: // set_global [long]
431 FETCH_NEXT_BYTECODE();
433 IF_TRACE(printf(" (set-global [long] %d)\n", bytecode
));
435 set_global (bytecode
, POP());
442 /***************************************************************************/
443 CASE(PUSH_CONSTANT_LONG
);
445 /* push-constant [long] */
447 FETCH_NEXT_BYTECODE();
449 IF_TRACE(printf(" (push [long] 0x%04x)\n", (bytecode_lo4
<< 8) + bytecode
));
451 // necessary since SIXPIC would have kept the result of the shift at 8 bits
453 arg1
= (arg1
<< 8) | bytecode
;
458 /***************************************************************************/
463 /***************************************************************************/
468 /***************************************************************************/
471 IF_TRACE(printf(" (%s)\n", prim_name
[bytecode_lo4
]));
473 switch (bytecode_lo4
) {
475 arg1
= POP(); prim_numberp (); PUSH_ARG1(); break;
477 arg2
= POP(); arg1
= POP(); prim_add (); PUSH_ARG1(); break;
479 arg2
= POP(); arg1
= POP(); prim_sub (); PUSH_ARG1(); break;
481 arg2
= POP(); arg1
= POP(); prim_mul (); PUSH_ARG1(); break;
483 arg2
= POP(); arg1
= POP(); prim_div (); PUSH_ARG1(); break;
485 arg2
= POP(); arg1
= POP(); prim_rem (); PUSH_ARG1(); break;
487 arg1
= POP(); prim_neg (); PUSH_ARG1(); break;
489 arg2
= POP(); arg1
= POP(); prim_eq (); PUSH_ARG1(); break;
491 arg2
= POP(); arg1
= POP(); prim_lt (); PUSH_ARG1(); break;
493 arg2
= POP(); arg1
= POP(); prim_leq (); PUSH_ARG1(); break;
495 arg2
= POP(); arg1
= POP(); prim_gt (); PUSH_ARG1(); break;
497 arg2
= POP(); arg1
= POP(); prim_geq (); PUSH_ARG1(); break;
499 arg1
= POP(); prim_pairp (); PUSH_ARG1(); break;
501 arg2
= POP(); arg1
= POP(); prim_cons (); PUSH_ARG1(); break;
503 arg1
= POP(); prim_car (); PUSH_ARG1(); break;
505 arg1
= POP(); prim_cdr (); PUSH_ARG1(); break;
510 /***************************************************************************/
513 IF_TRACE(printf(" (%s)\n", prim_name
[bytecode_lo4
+16]));
515 switch (bytecode_lo4
) {
517 arg2
= POP(); arg1
= POP(); prim_set_car (); break;
519 arg2
= POP(); arg1
= POP(); prim_set_cdr (); break;
521 arg1
= POP(); prim_nullp (); PUSH_ARG1(); break;
523 arg2
= POP(); arg1
= POP(); prim_eqp (); PUSH_ARG1(); break;
525 arg1
= POP(); prim_not (); PUSH_ARG1(); break;
527 /* prim #%get-cont */
532 /* prim #%graft-to-cont */
534 arg1
= POP(); /* thunk to call */
535 cont
= POP(); /* continuation */
542 handle_arity_and_rest_param ();
552 /* prim #%return-to-cont */
554 arg1
= POP(); /* value to return */
555 cont
= POP(); /* continuation */
557 arg2
= ram_get_cdr (cont
);
559 pc
= ram_get_entry (arg2
);
561 env
= ram_get_cdr (arg2
);
562 cont
= ram_get_car (cont
);
573 arg1
= POP(); prim_symbolp (); PUSH_ARG1(); break;
576 arg1
= POP(); prim_stringp (); PUSH_ARG1(); break;
578 /* prim #%string->list */
579 arg1
= POP(); prim_string2list (); PUSH_ARG1(); break;
581 /* prim #%list->string */
582 arg1
= POP(); prim_list2string (); PUSH_ARG1(); break;
584 /* prim #%make-u8vector */
585 arg2
= POP(); arg1
= POP(); prim_make_u8vector (); PUSH_ARG1(); break;
587 /* prim #%u8vector-ref */
588 arg2
= POP(); arg1
= POP(); prim_u8vector_ref (); PUSH_ARG1(); break;
590 /* prim #%u8vector-set! */
591 arg3
= POP(); arg2
= POP(); arg1
= POP(); prim_u8vector_set (); break;
596 /***************************************************************************/
599 IF_TRACE(printf(" (%s)\n", prim_name
[bytecode_lo4
+32]));
601 switch (bytecode_lo4
) {
609 prim_clock (); PUSH_ARG1(); break;
612 arg2
= POP(); arg1
= POP(); prim_motor (); break;
615 arg3
= POP(); arg2
= POP(); arg1
= POP(); prim_led (); ;break;
617 /* prim #%led2-color */
618 arg1
= POP(); prim_led2_color (); break;
620 /* prim #%getchar-wait */
621 arg2
= POP(); arg1
= POP(); prim_getchar_wait (); PUSH_ARG1(); break;
624 arg2
= POP(); arg1
= POP(); prim_putchar (); break;
627 arg2
= POP(); arg1
= POP(); prim_beep (); break;
630 arg1
= POP(); prim_adc (); PUSH_ARG1(); break;
632 /* prim #%u8vector? */
633 arg1
= POP(); prim_u8vectorp (); PUSH_ARG1(); break;
636 prim_sernum (); PUSH_ARG1(); break;
638 /* prim #%u8vector-length */
639 arg1
= POP(); prim_u8vector_length (); PUSH_ARG1(); break;
641 /* prim #%u8vector-copy! */
642 arg5
= POP(); arg4
= POP(); arg3
= POP(); arg2
= POP(); arg1
= POP();
643 prim_u8vector_copy (); break;
658 arg2
= ram_get_cdr (cont
);
659 pc
= ram_get_entry (arg2
);
660 env
= ram_get_cdr (arg2
);
661 cont
= ram_get_car (cont
);
669 /***************************************************************************/
673 IF_TRACE(printf(" (%s)\n", prim_name
[bytecode_lo4
]));
675 switch (bytecode_lo4
) {
677 /* prim #%boolean? */
678 arg1
= POP(); prim_booleanp (); PUSH_ARG1(); break;
680 /* prim #%network-init */
681 prim_network_init (); break;
683 /* prim #%network-cleanup */
684 prim_network_cleanup (); break;
686 /* prim #%receive-packet-to-u8vector */
687 arg1
= POP(); prim_receive_packet_to_u8vector (); PUSH_ARG1(); break;
689 /* prim #%send-packet-from-u8vector */
690 arg2
= POP(); arg1
= POP(); prim_send_packet_from_u8vector ();
693 arg2
= POP(); arg1
= POP(); prim_ior (); PUSH_ARG1(); break;
696 arg2
= POP(); arg1
= POP(); prim_xor (); PUSH_ARG1(); break;
722 /***************************************************************************/