1 /*-------------------------------------------------------------------------
3 genarith.c - source file for code generation - arithmetic
5 Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998)
6 and - Jean-Louis VERN.jlvern@writeme.com (1999)
7 Bug Fixes - Wojciech Stryjewski wstryj1@tiger.lsu.edu (1999 v2.1.9a)
8 PIC port - Scott Dattalo scott@dattalo.com (2000)
9 PIC16 port - Martin Dubuc m.dubuc@rogers.com (2002)
11 This program is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by the
13 Free Software Foundation; either version 2, or (at your option) any
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 In other words, you are welcome to use, share and improve this program.
26 You are forbidden to forbid anyone else to use, share and improve
27 what you give them. Help stamp out software-hoarding!
30 000123 mlh Moved aopLiteral to SDCCglue.c to help the split
31 Made everything static
32 -------------------------------------------------------------------------*/
38 #include "SDCCglobl.h"
41 #if defined(_MSC_VER) && (_MSC_VER < 1300)
42 #define __FUNCTION__ __FILE__
46 #include "SDCCpeeph.h"
52 #define pic16_emitcode DEBUGpic16_emitcode
55 #define BYTEofLONG(l,b) ( (l>> (b<<3)) & 0xff)
56 void DEBUGpic16_pic16_AopType(int line_no, operand *left, operand *right, operand *result);
57 void pic16_emitpcomment(char *, ...);
58 pCodeOp *pic16_popGet2p(pCodeOp *src, pCodeOp *dst);
59 const char *pic16_AopType(short type)
106 const char *pic16_pCodeOpType( pCodeOp *pcop)
129 case PO_GPR_REGISTER:
130 return "PO_GPR_REGISTER";
134 return "PO_GPR_TEMP";
135 case PO_SFR_REGISTER:
136 return "PO_SFR_REGISTER";
150 return "PO_REL_ADDR";
152 return "PO_IMMEDIATE";
168 return "BAD PO_TYPE";
171 /*-----------------------------------------------------------------*/
172 /* pic16_genPlusIncr :- does addition with increment if possible */
173 /*-----------------------------------------------------------------*/
174 bool pic16_genPlusIncr (iCode *ic)
176 unsigned int icount ;
177 unsigned int size = pic16_getDataSize(IC_RESULT(ic));
179 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
180 DEBUGpic16_emitcode ("; ","result %s, left %s, right %s",
181 pic16_AopType(AOP_TYPE(IC_RESULT(ic))),
182 pic16_AopType(AOP_TYPE(IC_LEFT(ic))),
183 pic16_AopType(AOP_TYPE(IC_RIGHT(ic))));
185 /* will try to generate an increment */
186 /* if the right side is not a literal
188 if (AOP_TYPE(IC_RIGHT(ic)) != AOP_LIT)
191 DEBUGpic16_emitcode ("; ","%s %d",__FUNCTION__,__LINE__);
192 /* if the literal value of the right hand side
193 is greater than 2 then it is faster to add */
194 if ((icount = (unsigned int) floatFromVal (AOP(IC_RIGHT(ic))->aopu.aop_lit)) > 2)
197 /* if increment 16 bits in register */
198 if (pic16_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) &&
203 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(IC_RESULT(ic)),LSB));
204 //pic16_emitcode("incf","%s,f",pic16_aopGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
208 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(IC_RESULT(ic)),offset++));
209 //pic16_emitcode(" incf","%s,f",pic16_aopGet(AOP(IC_RESULT(ic)),offset++,FALSE,FALSE));
215 DEBUGpic16_emitcode ("; ","%s %d",__FUNCTION__,__LINE__);
216 /* if left is in accumulator - probably a bit operation*/ // VR - why this is a bit operation?!
217 if( (AOP_TYPE(IC_LEFT(ic)) == AOP_ACC) &&
218 (AOP_TYPE(IC_RESULT(ic)) == AOP_CRY) ) {
220 pic16_emitpcode(POC_BCF, pic16_popGet(AOP(IC_RESULT(ic)),0));
221 pic16_emitcode("bcf","(%s >> 3), (%s & 7)",
222 AOP(IC_RESULT(ic))->aopu.aop_dir,
223 AOP(IC_RESULT(ic))->aopu.aop_dir);
225 pic16_emitpcode(POC_XORLW,pic16_popGetLit(1));
226 //pic16_emitcode("xorlw","1");
228 pic16_emitpcode(POC_ANDLW,pic16_popGetLit(1));
229 //pic16_emitcode("andlw","1");
232 pic16_emitpcode(POC_BSF, pic16_popGet(AOP(IC_RESULT(ic)),0));
233 pic16_emitcode("bsf","(%s >> 3), (%s & 7)",
234 AOP(IC_RESULT(ic))->aopu.aop_dir,
235 AOP(IC_RESULT(ic))->aopu.aop_dir);
241 /* if the sizes are greater than 1 then we cannot */
242 if (AOP_SIZE(IC_RESULT(ic)) > 1 ||
243 AOP_SIZE(IC_LEFT(ic)) > 1 )
246 /* If we are incrementing the same register by two: */
248 if (pic16_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
251 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(IC_RESULT(ic)),0));
252 //pic16_emitcode("incf","%s,f",pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
257 DEBUGpic16_emitcode ("; ","couldn't increment ");
262 /*-----------------------------------------------------------------*/
263 /* pic16_outBitAcc - output a bit in acc */
264 /*-----------------------------------------------------------------*/
265 void pic16_outBitAcc(operand *result)
267 symbol *tlbl = newiTempLabel(NULL);
268 /* if the result is a bit */
269 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
271 if (AOP_TYPE(result) == AOP_CRY){
272 pic16_aopPut(AOP(result),"a",0);
275 pic16_emitcode("jz","%05d_DS_",tlbl->key+100);
276 pic16_emitcode("mov","a,#01");
277 pic16_emitcode("","%05d_DS_:",tlbl->key+100);
278 pic16_outAcc(result);
282 /*-----------------------------------------------------------------*/
283 /* pic16_genPlusBits - generates code for addition of two bits */
284 /*-----------------------------------------------------------------*/
285 void pic16_genPlusBits (iCode *ic)
288 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
290 DEBUGpic16_emitcode ("; ","result %s, left %s, right %s",
291 pic16_AopType(AOP_TYPE(IC_RESULT(ic))),
292 pic16_AopType(AOP_TYPE(IC_LEFT(ic))),
293 pic16_AopType(AOP_TYPE(IC_RIGHT(ic))));
295 The following block of code will add two bits.
296 Note that it'll even work if the destination is
297 the carry (C in the status register).
298 It won't work if the 'Z' bit is a source or destination.
301 /* If the result is stored in the accumulator (w) */
302 //if(strcmp(pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE),"a") == 0 ) {
303 switch(AOP_TYPE(IC_RESULT(ic))) {
305 pic16_emitpcode(POC_CLRF, pic16_popCopyReg(&pic16_pc_wreg));
306 pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(IC_RIGHT(ic)),0));
307 pic16_emitpcode(POC_XORLW, pic16_popGetLit(1));
308 pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(IC_LEFT(ic)),0));
309 pic16_emitpcode(POC_XORLW, pic16_popGetLit(1));
311 pic16_emitcode("clrw","");
312 pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
313 AOP(IC_RIGHT(ic))->aopu.aop_dir,
314 AOP(IC_RIGHT(ic))->aopu.aop_dir);
315 pic16_emitcode("xorlw","1");
316 pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
317 AOP(IC_LEFT(ic))->aopu.aop_dir,
318 AOP(IC_LEFT(ic))->aopu.aop_dir);
319 pic16_emitcode("xorlw","1");
322 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0));
323 pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(IC_RIGHT(ic)),0));
324 pic16_emitpcode(POC_XORLW, pic16_popGetLit(1));
325 pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(IC_LEFT(ic)),0));
326 pic16_emitpcode(POC_XORLW, pic16_popGetLit(1));
327 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(IC_RESULT(ic)),0));
330 pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(IC_RESULT(ic)),0));
331 pic16_emitpcode(POC_BCF, pic16_popGet(AOP(IC_RESULT(ic)),0));
332 pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(IC_RIGHT(ic)),0));
333 pic16_emitpcode(POC_XORWF, pic16_popGet(AOP(IC_RESULT(ic)),0));
334 pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(IC_LEFT(ic)),0));
335 pic16_emitpcode(POC_XORWF, pic16_popGet(AOP(IC_RESULT(ic)),0));
337 pic16_emitcode("movlw","(1 << (%s & 7))",
338 AOP(IC_RESULT(ic))->aopu.aop_dir,
339 AOP(IC_RESULT(ic))->aopu.aop_dir);
340 pic16_emitcode("bcf","(%s >> 3), (%s & 7)",
341 AOP(IC_RESULT(ic))->aopu.aop_dir,
342 AOP(IC_RESULT(ic))->aopu.aop_dir);
343 pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
344 AOP(IC_RIGHT(ic))->aopu.aop_dir,
345 AOP(IC_RIGHT(ic))->aopu.aop_dir);
346 pic16_emitcode("xorwf","(%s >>3),f",
347 AOP(IC_RESULT(ic))->aopu.aop_dir);
348 pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
349 AOP(IC_LEFT(ic))->aopu.aop_dir,
350 AOP(IC_LEFT(ic))->aopu.aop_dir);
351 pic16_emitcode("xorwf","(%s>>3),f",
352 AOP(IC_RESULT(ic))->aopu.aop_dir);
359 /* This is the original version of this code.
361 * This is being kept around for reference,
362 * because I am not entirely sure I got it right...
364 static void adjustArithmeticResult(iCode *ic)
366 if (AOP_SIZE(IC_RESULT(ic)) == 3 &&
367 AOP_SIZE(IC_LEFT(ic)) == 3 &&
368 !pic16_sameRegs(AOP(IC_RESULT(ic)),AOP(IC_LEFT(ic))))
369 pic16_aopPut(AOP(IC_RESULT(ic)),
370 pic16_aopGet(AOP(IC_LEFT(ic)),2,FALSE,FALSE),
373 if (AOP_SIZE(IC_RESULT(ic)) == 3 &&
374 AOP_SIZE(IC_RIGHT(ic)) == 3 &&
375 !pic16_sameRegs(AOP(IC_RESULT(ic)),AOP(IC_RIGHT(ic))))
376 pic16_aopPut(AOP(IC_RESULT(ic)),
377 pic16_aopGet(AOP(IC_RIGHT(ic)),2,FALSE,FALSE),
380 if (AOP_SIZE(IC_RESULT(ic)) == 3 &&
381 AOP_SIZE(IC_LEFT(ic)) < 3 &&
382 AOP_SIZE(IC_RIGHT(ic)) < 3 &&
383 !pic16_sameRegs(AOP(IC_RESULT(ic)),AOP(IC_LEFT(ic))) &&
384 !pic16_sameRegs(AOP(IC_RESULT(ic)),AOP(IC_RIGHT(ic)))) {
386 sprintf(buffer,"#%d",pointerCode(getSpec(operandType(IC_LEFT(ic)))));
387 pic16_aopPut(AOP(IC_RESULT(ic)),buffer,2);
391 /* This is the pure and virtuous version of this code.
392 * I'm pretty certain it's right, but not enough to toss the old
395 static void adjustArithmeticResult(iCode *ic)
397 if (opIsGptr(IC_RESULT(ic)) &&
398 opIsGptr(IC_LEFT(ic)) &&
399 !pic16_sameRegs(AOP(IC_RESULT(ic)),AOP(IC_LEFT(ic))))
401 pic16_aopPut(AOP(IC_RESULT(ic)),
402 pic16_aopGet(AOP(IC_LEFT(ic)), GPTRSIZE - 1,FALSE,FALSE),
406 if (opIsGptr(IC_RESULT(ic)) &&
407 opIsGptr(IC_RIGHT(ic)) &&
408 !pic16_sameRegs(AOP(IC_RESULT(ic)),AOP(IC_RIGHT(ic))))
410 pic16_aopPut(AOP(IC_RESULT(ic)),
411 pic16_aopGet(AOP(IC_RIGHT(ic)),GPTRSIZE - 1,FALSE,FALSE),
415 if (opIsGptr(IC_RESULT(ic)) &&
416 AOP_SIZE(IC_LEFT(ic)) < GPTRSIZE &&
417 AOP_SIZE(IC_RIGHT(ic)) < GPTRSIZE &&
418 !pic16_sameRegs(AOP(IC_RESULT(ic)),AOP(IC_LEFT(ic))) &&
419 !pic16_sameRegs(AOP(IC_RESULT(ic)),AOP(IC_RIGHT(ic)))) {
421 sprintf(buffer,"#%d",pointerCode(getSpec(operandType(IC_LEFT(ic)))));
422 pic16_aopPut(AOP(IC_RESULT(ic)),buffer,GPTRSIZE - 1);
427 /*-----------------------------------------------------------------*/
428 /* genAddlit - generates code for addition */
429 /*-----------------------------------------------------------------*/
430 static void genAddLit2byte (operand *result, int offr, int lit)
437 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),offr));
440 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(result),offr));
443 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(lit&0xff));
444 pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(result),offr));
449 static void emitMOVWF(operand *reg, int offset)
454 if (AOP_TYPE(reg) == AOP_ACC) {
455 DEBUGpic16_emitcode ("; ***","%s %d ignoring mov into W",__FUNCTION__,__LINE__);
459 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(reg),offset));
463 static void genAddLit (iCode *ic, int lit)
472 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
476 result = IC_RESULT(ic);
477 same = pic16_sameRegs(AOP(left), AOP(result));
478 size = pic16_getDataSize(result);
482 /* Handle special cases first */
484 genAddLit2byte (result, 0, lit);
487 int hi = 0xff & (lit >> 8);
494 DEBUGpic16_emitcode ("; hi = 0","%s %d",__FUNCTION__,__LINE__);
499 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),0));
501 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),MSB16));
504 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(result),0));
505 pic16_emitpcode(POC_INCFSZW, pic16_popGet(AOP(result),0));
506 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),MSB16));
510 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(lit&0xff));
511 pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(result),0));
513 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),MSB16));
521 DEBUGpic16_emitcode ("; hi = 1","%s %d",__FUNCTION__,__LINE__);
524 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),MSB16));
527 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),MSB16));
528 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),0));
530 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),MSB16));
532 case 0xff: /* 0x01ff */
533 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(result),0));
534 pic16_emitpcode(POC_INCFSZW, pic16_popGet(AOP(result),0));
535 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),MSB16));
536 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),MSB16));
541 DEBUGpic16_emitcode ("; hi = ff","%s %d",__FUNCTION__,__LINE__);
545 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(result),MSB16));
548 pic16_emitpcode(POC_INCFSZ, pic16_popGet(AOP(result),0));
549 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(result),MSB16));
551 /* case 0xff: * 0xffff *
552 pic16_emitpcode(POC_INCFSZW, pic16_popGet(AOP(result),0,FALSE,FALSE));
553 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),MSB16,FALSE,FALSE));
554 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(result),0,FALSE,FALSE));
558 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(lo));
559 pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(result),0));
561 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(result),MSB16));
568 DEBUGpic16_emitcode ("; hi is generic","%d %s %d",hi,__FUNCTION__,__LINE__);
573 genAddLit2byte (result, MSB16, hi);
576 pic16_emitpcode(POC_MOVLW,pic16_popGetLit((hi+1)&0xff));
577 pic16_emitpcode(POC_INCFSZ, pic16_popGet(AOP(result),0));
578 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(hi));
579 pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(result),MSB16));
581 /* case 0xff: * 0xHHff *
582 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(result),0,FALSE,FALSE));
583 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(result),MSB16,FALSE,FALSE));
584 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(hi));
585 pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(result),MSB16,FALSE,FALSE));
587 */ default: /* 0xHHLL */
588 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(lo));
589 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),0));
590 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(hi));
592 pic16_emitpcode(POC_MOVLW,pic16_popGetLit((hi+1) & 0xff));
593 pic16_emitpcode(POC_ADDWF,pic16_popGet(AOP(result),MSB16));
602 DEBUGpic16_emitcode ("; add lit to long","%s %d",__FUNCTION__,__LINE__);
605 lo = BYTEofLONG(lit,0);
613 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),offset));
616 pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(result),offset));
617 pic16_emitpcode(POC_ANDLW, pic16_popGetLit(1));
618 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offset));
620 default: /* carry_info = 3 */
622 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),offset));
628 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(lo));
633 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offset));
636 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(lo));
641 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(lo+1));
642 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offset));
647 /* no carry info from previous step */
648 /* this means this is the first time to add */
653 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),offset));
657 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(lo));
658 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offset));
660 carry_info = 3; /* Were adding only one byte and propogating the carry */
671 lo = BYTEofLONG(lit,0);
676 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),0,FALSE,FALSE));
679 pic16_emitpcode(POC_MOVLW,pic16_popGetLit(lo));
680 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),0,FALSE,FALSE));
683 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),1,FALSE,FALSE));
685 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),2,FALSE,FALSE));
687 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(result),3,FALSE,FALSE));
697 DEBUGpic16_emitcode ("; left and result aren't same","%s %d",__FUNCTION__,__LINE__);
701 if(AOP_TYPE(left) == AOP_ACC) {
702 /* left addend is already in accumulator */
705 //pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0,FALSE,FALSE));
709 pic16_emitpcode(POC_ADDLW, pic16_popGetLit(lit & 0xff));
710 //pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0,FALSE,FALSE));
714 /* left addend is in a register */
717 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),0));
718 emitMOVWF(result, 0);
719 //pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0,FALSE,FALSE));
723 pic16_emitpcode(POC_INCFW, pic16_popGet(AOP(left),0));
724 //pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0,FALSE,FALSE));
728 pic16_emitpcode(POC_DECFW, pic16_popGet(AOP(left),0));
729 //pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0,FALSE,FALSE));
733 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit & 0xff));
734 pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(left),0));
735 //pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0,FALSE,FALSE));
743 /* left is not the accumulator */
745 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit & 0xff));
746 pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(left),0));
748 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),0));
749 /* We don't know the state of the carry bit at this point */
752 //pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),0,FALSE,FALSE));
759 /* The ls byte of the lit must've been zero - that
760 means we don't have to deal with carry */
762 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit & 0xff));
763 pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(left),offset));
764 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(left),offset));
769 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit & 0xff));
770 //pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset,FALSE,FALSE));
771 emitMOVWF(result,offset);
772 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),offset));
774 pic16_emitpcode(POC_INCFSZW,pic16_popGet(AOP(left),offset));
775 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offset));
779 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),offset));
780 pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(result),offset));
781 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),offset));
782 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result),offset));
790 /*-----------------------------------------------------------------*/
791 /* pic16_genPlus - generates code for addition */
792 /*-----------------------------------------------------------------*/
793 void pic16_genPlus (iCode *ic)
795 int i, size, offset = 0;
796 operand *result, *left, *right;
798 /* special cases :- */
799 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
802 result = IC_RESULT(ic);
804 right = IC_RIGHT(ic);
805 pic16_aopOp (left,ic,FALSE);
806 pic16_aopOp (right,ic,FALSE);
807 pic16_aopOp (result,ic,TRUE);
808 DEBUGpic16_pic16_AopType(__LINE__,left, right, result);
809 // pic16_DumpOp("(left)",left);
811 /* if literal, literal on the right or
812 if left requires ACC or right is already
815 if ( (AOP_TYPE(left) == AOP_LIT) || (pic16_sameRegs(AOP(right), AOP(result))) ) {
821 /* if both left & right are in bit space */
822 if (AOP_TYPE(left) == AOP_CRY &&
823 AOP_TYPE(right) == AOP_CRY) {
824 pic16_genPlusBits (ic);
828 /* if left in bit space & right literal */
829 if (AOP_TYPE(left) == AOP_CRY &&
830 AOP_TYPE(right) == AOP_LIT) {
831 /* if result in bit space */
832 if(AOP_TYPE(result) == AOP_CRY){
833 if((unsigned long)floatFromVal(AOP(right)->aopu.aop_lit) != 0L) {
834 pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(result),0));
835 if (!pic16_sameRegs(AOP(left), AOP(result)) )
836 pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(left),0));
837 pic16_emitpcode(POC_XORWF, pic16_popGet(AOP(result),0));
840 size = pic16_getDataSize(result);
842 MOVA(pic16_aopGet(AOP(right),offset,FALSE,FALSE));
843 pic16_emitcode("addc","a,#00 ;%d",__LINE__);
844 pic16_aopPut(AOP(result),"a",offset++);
850 /* if I can do an increment instead
851 of add then GOOD for ME */
852 if (pic16_genPlusIncr (ic) == TRUE)
855 size = pic16_getDataSize(IC_RESULT(ic));
857 if(AOP(IC_RIGHT(ic))->type == AOP_LIT) {
858 /* Add a literal to something else */
860 unsigned lit = (unsigned) floatFromVal(AOP(IC_RIGHT(ic))->aopu.aop_lit);
864 DEBUGpic16_emitcode(";","adding lit to something. size %d",size);
869 } else if(AOP_TYPE(IC_RIGHT(ic)) == AOP_CRY) {
871 pic16_emitcode(";bitadd","right is bit: %s",pic16_aopGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
872 pic16_emitcode(";bitadd","left is bit: %s",pic16_aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
873 pic16_emitcode(";bitadd","result is bit: %s",pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
875 /* here we are adding a bit to a char or int */
877 if (pic16_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
879 pic16_emitpcode(POC_BTFSC , pic16_popGet(AOP(IC_RIGHT(ic)),0));
880 pic16_emitpcode(POC_INCF , pic16_popGet(AOP(IC_RESULT(ic)),0));
882 pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
883 AOP(IC_RIGHT(ic))->aopu.aop_dir,
884 AOP(IC_RIGHT(ic))->aopu.aop_dir);
885 pic16_emitcode(" incf","%s,f", pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
888 if(AOP_TYPE(IC_LEFT(ic)) == AOP_ACC) {
889 pic16_emitpcode(POC_BTFSC , pic16_popGet(AOP(IC_RIGHT(ic)),0));
890 pic16_emitpcode(POC_XORLW , pic16_popGetLit(1));
892 pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
893 AOP(IC_RIGHT(ic))->aopu.aop_dir,
894 AOP(IC_RIGHT(ic))->aopu.aop_dir);
895 pic16_emitcode(" xorlw","1");
897 pic16_emitpcode(POC_MOVFW , pic16_popGet(AOP(IC_LEFT(ic)),0));
898 pic16_emitpcode(POC_BTFSC , pic16_popGet(AOP(IC_RIGHT(ic)),0));
899 pic16_emitpcode(POC_INCFW , pic16_popGet(AOP(IC_LEFT(ic)),0));
901 pic16_emitcode("movf","%s,w", pic16_aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
902 pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
903 AOP(IC_RIGHT(ic))->aopu.aop_dir,
904 AOP(IC_RIGHT(ic))->aopu.aop_dir);
905 pic16_emitcode(" incf","%s,w", pic16_aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
908 if(AOP_TYPE(IC_RESULT(ic)) != AOP_ACC) {
910 if(AOP_TYPE(IC_RESULT(ic)) == AOP_CRY) {
911 pic16_emitpcode(POC_ANDLW , pic16_popGetLit(1));
912 pic16_emitpcode(POC_BCF , pic16_popGet(AOP(IC_RESULT(ic)),0));
914 pic16_emitpcode(POC_BSF , pic16_popGet(AOP(IC_RESULT(ic)),0));
916 pic16_emitpcode(POC_MOVWF , pic16_popGet(AOP(IC_RESULT(ic)),0));
917 pic16_emitcode("movwf","%s", pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
924 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
925 if (pic16_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
927 pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(IC_RIGHT(ic)),0));
928 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(IC_RESULT(ic)),0));
930 pic16_emitcode("clrz","");
932 pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
933 AOP(IC_RIGHT(ic))->aopu.aop_dir,
934 AOP(IC_RIGHT(ic))->aopu.aop_dir);
935 pic16_emitcode(" incf","%s,f", pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
939 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_LEFT(ic)),0));
940 pic16_emitpcode(POC_BTFSC, pic16_popGet(AOP(IC_RIGHT(ic)),0));
941 pic16_emitpcode(POC_INCFW, pic16_popGet(AOP(IC_LEFT(ic)),0));
942 //pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
943 emitMOVWF(IC_RIGHT(ic),0);
945 pic16_emitcode("movf","%s,w", pic16_aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
946 pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
947 AOP(IC_RIGHT(ic))->aopu.aop_dir,
948 AOP(IC_RIGHT(ic))->aopu.aop_dir);
949 pic16_emitcode(" incf","%s,w", pic16_aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
950 pic16_emitcode("movwf","%s", pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
956 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(IC_RESULT(ic)),offset++));
957 //pic16_emitcode(" incf","%s,f", pic16_aopGet(AOP(IC_RIGHT(ic)),offset++,FALSE,FALSE));
965 // Note: the following is an example of WISC code, eg.
966 // it's supposed to run on a Weird Instruction Set Computer :o)
968 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
970 if ( AOP_TYPE(left) == AOP_ACC) {
971 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
972 pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(right),0));
973 if ( AOP_TYPE(result) != AOP_ACC)
974 pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(result),0));
975 goto release; // we're done, since WREG is 1 byte
979 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
981 size = min( AOP_SIZE(result), AOP_SIZE(right) );
984 if(pic16_debug_verbose)
985 fprintf(stderr, "%s:%d size of operands: %d\n", __FILE__, __LINE__, size);
987 if ((AOP_TYPE(left) == AOP_PCODE) && (
988 (AOP(left)->aopu.pcop->type == PO_LITERAL) ||
989 // (AOP(left)->aopu.pcop->type == PO_DIR) || // patch 9
990 (AOP(left)->aopu.pcop->type == PO_IMMEDIATE)))
992 // add to literal operand
995 for(i=0; i<size; i++) {
996 if (AOP_TYPE(right) == AOP_ACC) {
997 pic16_emitpcode(POC_ADDLW, pic16_popGet(AOP(left),i));
999 pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(left),i));
1000 if(i) { // add with carry
1001 pic16_emitpcode(POC_ADDFWC, pic16_popGet(AOP(right),i));
1002 } else { // add without
1003 pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(right),i));
1006 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),i));
1009 // add leftover bytes
1010 if (SPEC_USIGN(getSpec(operandType(right)))) {
1011 // right is unsigned
1012 for(i=size; i< AOP_SIZE(result); i++) {
1013 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),i));
1014 pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(left),i));
1015 pic16_emitpcode(POC_ADDWFC, pic16_popGet(AOP(result),i));
1019 // right is signed, oh dear ...
1020 for(i=size; i< AOP_SIZE(result); i++) {
1021 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),i));
1022 pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(result),size-1,FALSE,FALSE),7,0));
1023 pic16_emitpcode(POC_COMF, pic16_popGet(AOP(result),i));
1024 pic16_emitpcode(POC_MOVLW, pic16_popGet(AOP(left),i));
1025 pic16_emitpcode(POC_ADDWFC, pic16_popGet(AOP(result),i));
1035 for(i=0; i<size; i++) {
1036 if (AOP_TYPE(right) != AOP_ACC)
1037 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(right),i));
1038 if (pic16_sameRegs(AOP(left), AOP(result)))
1040 if(i) { // add with carry
1041 pic16_emitpcode(POC_ADDWFC, pic16_popGet(AOP(left),i));
1042 } else { // add without
1043 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(left),i));
1045 } else { // not same
1046 if(i) { // add with carry
1047 pic16_emitpcode(POC_ADDFWC, pic16_popGet(AOP(left),i));
1048 } else { // add without
1049 pic16_emitpcode(POC_ADDFW, pic16_popGet(AOP(left),i));
1051 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),i));
1055 // add leftover bytes
1056 if (SPEC_USIGN(getSpec(operandType(right)))) {
1057 // right is unsigned
1058 for(i=size; i< AOP_SIZE(result); i++) {
1059 if (pic16_sameRegs(AOP(left), AOP(result)))
1061 pic16_emitpcode(POC_CLRF, pic16_popCopyReg(&pic16_pc_wreg));
1062 pic16_emitpcode(POC_ADDWFC, pic16_popGet(AOP(left),i));
1063 } else { // not same
1064 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),i));
1065 pic16_emitpcode(POC_ADDWFC, pic16_popGet(AOP(result),i));
1070 for(i=size; i< AOP_SIZE(result); i++) {
1071 pic16_emitpcode(POC_CLRF, pic16_popCopyReg(&pic16_pc_wreg));
1072 pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(right),size-1,FALSE,FALSE),7,0));
1073 pic16_emitpcode(POC_COMFW, pic16_popCopyReg(&pic16_pc_wreg));
1074 if (pic16_sameRegs(AOP(left), AOP(result)))
1076 pic16_emitpcode(POC_ADDWFC, pic16_popGet(AOP(left),i));
1077 } else { // not same
1078 pic16_emitpcode(POC_ADDFWC, pic16_popGet(AOP(left),i));
1079 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),i));
1088 // TODO: anything from here to before "release:" is probably obsolete and should be removed
1089 // when the regression tests are stable
1091 if (AOP_SIZE(IC_RESULT(ic)) > AOP_SIZE(IC_RIGHT(ic))) {
1092 int sign = !(SPEC_USIGN(getSpec(operandType(IC_LEFT(ic)))) |
1093 SPEC_USIGN(getSpec(operandType(IC_RIGHT(ic)))) );
1096 /* Need to extend result to higher bytes */
1097 size = AOP_SIZE(IC_RESULT(ic)) - AOP_SIZE(IC_RIGHT(ic)) - 1;
1099 /* First grab the carry from the lower bytes */
1100 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1101 pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1105 /* Now this is really horrid. Gotta check the sign of the addends and propogate
1108 pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(IC_LEFT(ic)),offset-1,FALSE,FALSE),7,0));
1109 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1110 pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(IC_RIGHT(ic)),offset-1,FALSE,FALSE),7,0));
1111 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1113 /* if chars or ints or being signed extended to longs: */
1115 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0));
1116 pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(IC_RESULT(ic)),offset,FALSE,FALSE),7,0));
1117 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0xff));
1125 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1127 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1134 //adjustArithmeticResult(ic);
1137 pic16_freeAsmop(IC_LEFT(ic),NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
1138 pic16_freeAsmop(IC_RIGHT(ic),NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
1139 pic16_freeAsmop(IC_RESULT(ic),NULL,ic,TRUE);
1142 /*-----------------------------------------------------------------*/
1143 /* pic16_genMinusDec :- does subtraction with decrement if possible */
1144 /*-----------------------------------------------------------------*/
1145 bool pic16_genMinusDec (iCode *ic)
1147 unsigned int icount ;
1148 unsigned int size = pic16_getDataSize(IC_RESULT(ic));
1150 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1151 /* will try to generate an increment */
1152 /* if the right side is not a literal
1154 if ((AOP_TYPE(IC_RIGHT(ic)) != AOP_LIT) ||
1155 (AOP_TYPE(IC_LEFT(ic)) == AOP_CRY) ||
1156 (AOP_TYPE(IC_RESULT(ic)) == AOP_CRY) )
1159 DEBUGpic16_emitcode ("; lit val","%d",(unsigned int) floatFromVal (AOP(IC_RIGHT(ic))->aopu.aop_lit));
1161 /* if the literal value of the right hand side
1162 is greater than 4 then it is not worth it */
1163 if ((icount = (unsigned int) floatFromVal (AOP(IC_RIGHT(ic))->aopu.aop_lit)) > 2)
1166 /* if decrement 16 bits in register */
1167 if (pic16_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) &&
1172 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(IC_RESULT(ic)),LSB));
1173 pic16_emitpcode(POC_INCFSZW, pic16_popGet(AOP(IC_RESULT(ic)),LSB));
1174 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(IC_RESULT(ic)),MSB16));
1175 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(IC_RESULT(ic)),MSB16));
1177 pic16_emitcode("decf","%s,f",pic16_aopGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
1178 pic16_emitcode("incfsz","%s,w",pic16_aopGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
1179 pic16_emitcode(" decf","%s,f",pic16_aopGet(AOP(IC_RESULT(ic)),MSB16,FALSE,FALSE));
1181 /* size is 3 or 4 */
1182 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0xff));
1183 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(IC_RESULT(ic)),LSB));
1185 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(IC_RESULT(ic)),MSB16));
1187 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(IC_RESULT(ic)),MSB24));
1189 pic16_emitcode("movlw","0xff");
1190 pic16_emitcode("addwf","%s,f",pic16_aopGet(AOP(IC_RESULT(ic)),LSB,FALSE,FALSE));
1193 pic16_emitcode("addwf","%s,f",pic16_aopGet(AOP(IC_RESULT(ic)),MSB16,FALSE,FALSE));
1195 pic16_emitcode("addwf","%s,f",pic16_aopGet(AOP(IC_RESULT(ic)),MSB24,FALSE,FALSE));
1199 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(IC_RESULT(ic)),MSB32));
1201 pic16_emitcode("skpnc","");
1203 pic16_emitcode("addwf","%s,f",pic16_aopGet(AOP(IC_RESULT(ic)),MSB32,FALSE,FALSE));
1212 /* if the sizes are greater than 1 then we cannot */
1213 if (AOP_SIZE(IC_RESULT(ic)) > 1 ||
1214 AOP_SIZE(IC_LEFT(ic)) > 1 )
1217 /* we can if the aops of the left & result match or
1218 if they are in registers and the registers are the
1220 if (pic16_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic)))) {
1223 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(IC_RESULT(ic)),0));
1225 //pic16_emitcode ("decf","%s,f",pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
1230 DEBUGpic16_emitcode ("; returning"," result=%s, left=%s",
1231 pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE),
1232 pic16_aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
1235 pic16_emitcode("decf","%s,w",pic16_aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
1236 pic16_emitcode("movwf","%s",pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
1238 pic16_emitpcode(POC_DECFW, pic16_popGet(AOP(IC_LEFT(ic)),0));
1239 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(IC_RESULT(ic)),0));
1247 /*-----------------------------------------------------------------*/
1248 /* pic16_addSign - propogate sign bit to higher bytes */
1249 /*-----------------------------------------------------------------*/
1250 void pic16_addSign(operand *result, int offset, int sign)
1252 int size = (pic16_getDataSize(result) - offset);
1253 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1256 if(sign && offset) {
1259 pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),offset));
1260 pic16_emitpcode(POC_BTFSC,pic16_newpCodeOpBit(pic16_aopGet(AOP(result),offset-1,FALSE,FALSE),7,0));
1261 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(result),offset));
1264 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0));
1265 pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(result),offset-1,FALSE,FALSE),7,0));
1266 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0xff));
1268 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result),offset+size));
1273 pic16_emitpcode(POC_CLRF,pic16_popGet(AOP(result),offset++));
1277 /*-----------------------------------------------------------------*/
1278 /* pic16_genMinusBits - generates code for subtraction of two bits */
1279 /*-----------------------------------------------------------------*/
1280 void pic16_genMinusBits (iCode *ic)
1282 symbol *lbl = newiTempLabel(NULL);
1283 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1284 if (AOP_TYPE(IC_RESULT(ic)) == AOP_CRY){
1285 pic16_emitcode("mov","c,%s",AOP(IC_LEFT(ic))->aopu.aop_dir);
1286 pic16_emitcode("jnb","%s,%05d_DS_",AOP(IC_RIGHT(ic))->aopu.aop_dir,(lbl->key+100));
1287 pic16_emitcode("cpl","c");
1288 pic16_emitcode("","%05d_DS_:",(lbl->key+100));
1289 pic16_outBitC(IC_RESULT(ic));
1292 pic16_emitcode("mov","c,%s",AOP(IC_RIGHT(ic))->aopu.aop_dir);
1293 pic16_emitcode("subb","a,acc");
1294 pic16_emitcode("jnb","%s,%05d_DS_",AOP(IC_LEFT(ic))->aopu.aop_dir,(lbl->key+100));
1295 pic16_emitcode("inc","a");
1296 pic16_emitcode("","%05d_DS_:",(lbl->key+100));
1297 pic16_aopPut(AOP(IC_RESULT(ic)),"a",0);
1298 pic16_addSign(IC_RESULT(ic), MSB16, SPEC_USIGN(getSpec(operandType(IC_RESULT(ic)))));
1302 /*-----------------------------------------------------------------*/
1303 /* pic16_genMinus - generates code for subtraction */
1304 /*-----------------------------------------------------------------*/
1305 void pic16_genMinus (iCode *ic)
1307 int size, offset = 0, same=0;
1308 unsigned long lit = 0L;
1310 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1311 pic16_aopOp (IC_LEFT(ic),ic,FALSE);
1312 pic16_aopOp (IC_RIGHT(ic),ic,FALSE);
1313 pic16_aopOp (IC_RESULT(ic),ic,TRUE);
1315 if (AOP_TYPE(IC_RESULT(ic)) == AOP_CRY &&
1316 AOP_TYPE(IC_RIGHT(ic)) == AOP_LIT) {
1317 operand *t = IC_RIGHT(ic);
1318 IC_RIGHT(ic) = IC_LEFT(ic);
1322 DEBUGpic16_emitcode ("; ","result %s, left %s, right %s",
1323 pic16_AopType(AOP_TYPE(IC_RESULT(ic))),
1324 pic16_AopType(AOP_TYPE(IC_LEFT(ic))),
1325 pic16_AopType(AOP_TYPE(IC_RIGHT(ic))));
1327 /* special cases :- */
1328 /* if both left & right are in bit space */
1329 if (AOP_TYPE(IC_LEFT(ic)) == AOP_CRY &&
1330 AOP_TYPE(IC_RIGHT(ic)) == AOP_CRY) {
1331 pic16_genPlusBits (ic);
1335 /* if I can do an decrement instead
1336 of subtract then GOOD for ME */
1337 // if (pic16_genMinusDec (ic) == TRUE)
1340 size = pic16_getDataSize(IC_RESULT(ic));
1341 same = pic16_sameRegs(AOP(IC_RIGHT(ic)), AOP(IC_RESULT(ic)));
1343 if(AOP(IC_RIGHT(ic))->type == AOP_LIT) {
1344 /* Add a literal to something else */
1346 lit = (unsigned long)floatFromVal(AOP(IC_RIGHT(ic))->aopu.aop_lit);
1349 genAddLit ( ic, lit);
1352 /* add the first byte: */
1353 pic16_emitcode("movlw","0x%x", lit & 0xff);
1354 pic16_emitcode("addwf","%s,f", pic16_aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
1355 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit & 0xff));
1356 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(IC_LEFT(ic)),0));
1368 if((lit & 0xff) == 0xff) {
1369 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(0xff));
1371 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(IC_LEFT(ic)),offset));
1373 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit & 0xff));
1375 pic16_emitpcode(POC_MOVLW, pic16_popGetLit((lit+1) & 0xff));
1376 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(IC_LEFT(ic)),offset));
1380 /* do the rlf known zero trick here */
1381 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(1));
1383 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(IC_LEFT(ic)),offset));
1388 } else if(AOP_TYPE(IC_RIGHT(ic)) == AOP_CRY) {
1391 pic16_emitcode(";bitsub","right is bit: %s",pic16_aopGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
1392 pic16_emitcode(";bitsub","left is bit: %s",pic16_aopGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
1393 pic16_emitcode(";bitsub","result is bit: %s",pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
1395 /* here we are subtracting a bit from a char or int */
1397 if (pic16_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
1399 pic16_emitpcode(POC_BTFSC , pic16_popGet(AOP(IC_RIGHT(ic)),0));
1400 pic16_emitpcode(POC_DECF , pic16_popGet(AOP(IC_RESULT(ic)),0));
1402 pic16_emitcode("btfsc","(%s >> 3), (%s & 7)",
1403 AOP(IC_RIGHT(ic))->aopu.aop_dir,
1404 AOP(IC_RIGHT(ic))->aopu.aop_dir);
1405 pic16_emitcode(" incf","%s,f", pic16_aopGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
1408 if(AOP_TYPE(IC_LEFT(ic)) == AOP_ACC) {
1409 pic16_emitpcode(POC_BTFSC , pic16_popGet(AOP(IC_RIGHT(ic)),0));
1410 pic16_emitpcode(POC_XORLW , pic16_popGetLit(1));
1411 }else if( (AOP_TYPE(IC_LEFT(ic)) == AOP_IMMD) ||
1412 (AOP_TYPE(IC_LEFT(ic)) == AOP_LIT) ) {
1414 lit = (unsigned long)floatFromVal(AOP(IC_LEFT(ic))->aopu.aop_lit);
1416 if(AOP_TYPE(IC_RESULT(ic)) == AOP_CRY) {
1417 if (pic16_sameRegs(AOP(IC_RIGHT(ic)), AOP(IC_RESULT(ic))) ) {
1419 pic16_emitpcode(POC_MOVLW , pic16_popGet(AOP(IC_RIGHT(ic)),0));
1420 pic16_emitpcode(POC_XORWF , pic16_popGet(AOP(IC_RIGHT(ic)),0));
1423 pic16_emitpcode(POC_BCF , pic16_popGet(AOP(IC_RESULT(ic)),0));
1425 pic16_emitpcode(POC_BTFSS , pic16_popGet(AOP(IC_RIGHT(ic)),0));
1427 pic16_emitpcode(POC_BTFSC , pic16_popGet(AOP(IC_RIGHT(ic)),0));
1428 pic16_emitpcode(POC_BSF , pic16_popGet(AOP(IC_RESULT(ic)),0));
1432 pic16_emitpcode(POC_MOVLW , pic16_popGetLit(lit & 0xff));
1433 pic16_emitpcode(POC_BTFSC , pic16_popGet(AOP(IC_RIGHT(ic)),0));
1434 pic16_emitpcode(POC_MOVLW , pic16_popGetLit((lit-1) & 0xff));
1435 pic16_emitpcode(POC_MOVWF , pic16_popGet(AOP(IC_RESULT(ic)),0));
1440 pic16_emitpcode(POC_MOVFW , pic16_popGet(AOP(IC_LEFT(ic)),0));
1441 pic16_emitpcode(POC_BTFSC , pic16_popGet(AOP(IC_RIGHT(ic)),0));
1442 pic16_emitpcode(POC_DECFW , pic16_popGet(AOP(IC_LEFT(ic)),0));
1445 if(AOP_TYPE(IC_RESULT(ic)) != AOP_ACC) {
1447 pic16_emitpcode(POC_MOVWF , pic16_popGet(AOP(IC_RESULT(ic)),0));
1450 pic16_emitpcode(POC_ANDLW , pic16_popGetLit(1));
1452 pic16_emitpcode(POC_BCF , pic16_popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
1454 pic16_emitpcode(POC_BSF , pic16_popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
1461 } else if(// (AOP_TYPE(IC_LEFT(ic)) == AOP_IMMD) ||
1462 (AOP(IC_LEFT(ic))->type == AOP_LIT) &&
1463 (AOP_TYPE(IC_RIGHT(ic)) != AOP_ACC)) {
1465 lit = (unsigned long)floatFromVal(AOP(IC_LEFT(ic))->aopu.aop_lit);
1466 DEBUGpic16_emitcode ("; left is lit","line %d result %s, left %s, right %s",__LINE__,
1467 pic16_AopType(AOP_TYPE(IC_RESULT(ic))),
1468 pic16_AopType(AOP_TYPE(IC_LEFT(ic))),
1469 pic16_AopType(AOP_TYPE(IC_RIGHT(ic))));
1472 if( (size == 1) && ((lit & 0xff) == 0) ) {
1473 /* res = 0 - right */
1474 if (pic16_sameRegs(AOP(IC_RIGHT(ic)), AOP(IC_RESULT(ic))) ) {
1475 pic16_emitpcode(POC_COMF, pic16_popGet(AOP(IC_RIGHT(ic)),0));
1476 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(IC_RIGHT(ic)),0));
1478 pic16_emitpcode(POC_COMFW, pic16_popGet(AOP(IC_RIGHT(ic)),0));
1479 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(IC_RESULT(ic)),0));
1480 pic16_emitpcode(POC_INCF, pic16_popGet(AOP(IC_RESULT(ic)),0));
1485 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_RIGHT(ic)),0));
1486 pic16_emitpcode(POC_SUBLW, pic16_popGetLit(lit & 0xff));
1487 pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(IC_RESULT(ic)),0));
1495 /* This is the last byte in a multibyte subtraction
1496 * There are a couple of tricks we can do by not worrying about
1497 * propogating the carry */
1499 /* 0xff - x == ~x */
1501 pic16_emitpcode(POC_COMF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1503 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1505 pic16_emitpcode(POC_COMFW, pic16_popGet(AOP(IC_RIGHT(ic)),offset));
1506 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1508 pic16_emitpcode(POC_DECF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1511 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_RIGHT(ic)),offset));
1513 pic16_emitpcode(POC_INCFW, pic16_popGet(AOP(IC_RIGHT(ic)),offset));
1514 pic16_emitpcode(POC_SUBLW, pic16_popGetLit(lit & 0xff));
1515 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1524 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit & 0xff));
1526 pic16_emitpcode(POC_MOVLW, pic16_popGetLit((lit & 0xff)-1));
1527 pic16_emitpcode(POC_SUBWF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1530 pic16_emitpcode(POC_SUBWF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1536 pic16_emitpcode(POC_MOVLW, pic16_popGetLit(lit & 0xff));
1537 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1539 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1541 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_RIGHT(ic)),offset));
1543 pic16_emitpcode(POC_INCFSZW,pic16_popGet(AOP(IC_RIGHT(ic)),offset));
1544 pic16_emitpcode(POC_SUBWF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1551 DEBUGpic16_emitcode ("; ","line %d result %s, left %s, right %s",__LINE__,
1552 pic16_AopType(AOP_TYPE(IC_RESULT(ic))),
1553 pic16_AopType(AOP_TYPE(IC_LEFT(ic))),
1554 pic16_AopType(AOP_TYPE(IC_RIGHT(ic))));
1556 if(AOP_TYPE(IC_LEFT(ic)) == AOP_ACC) {
1557 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1558 pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(IC_RIGHT(ic)),0));
1559 pic16_emitpcode(POC_SUBLW, pic16_popGetLit(0));
1560 pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(IC_RESULT(ic)),0));
1563 if ( AOP_TYPE(IC_LEFT(ic)) == AOP_ACC) {
1564 pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(IC_RIGHT(ic)),0));
1565 pic16_emitpcode(POC_SUBLW, pic16_popGetLit(0));
1566 if ( AOP_TYPE(IC_RESULT(ic)) != AOP_ACC)
1567 pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(IC_RESULT(ic)),0));
1570 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1571 if(AOP_TYPE(IC_RIGHT(ic)) != AOP_ACC)
1572 pic16_emitpcode(POC_MOVFW,pic16_popGet(AOP(IC_RIGHT(ic)),0));
1574 if (pic16_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) )
1575 pic16_emitpcode(POC_SUBWF, pic16_popGet(AOP(IC_LEFT(ic)),0));
1577 if( (AOP_TYPE(IC_LEFT(ic)) == AOP_IMMD) ||
1578 (AOP_TYPE(IC_LEFT(ic)) == AOP_LIT) ) {
1579 pic16_emitpcode(POC_SUBLW, pic16_popGet(AOP(IC_LEFT(ic)),0));
1581 pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(IC_LEFT(ic)),0));
1583 if ( AOP_TYPE(IC_RESULT(ic)) != AOP_ACC) {
1584 if ( AOP_TYPE(IC_RESULT(ic)) == AOP_CRY) {
1585 pic16_emitpcode(POC_BCF , pic16_popGet(AOP(IC_RESULT(ic)),0));
1587 pic16_emitpcode(POC_BSF , pic16_popGet(AOP(IC_RESULT(ic)),0));
1589 pic16_emitpcode(POC_MOVWF,pic16_popGet(AOP(IC_RESULT(ic)),0));
1596 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_RIGHT(ic)),0,FALSE,FALSE));
1598 if (pic16_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
1599 pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
1601 pic16_emitpcode(POC_SUBFW, pic16_popGet(AOP(IC_LEFT(ic)),0,FALSE,FALSE));
1602 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(IC_RESULT(ic)),0,FALSE,FALSE));
1609 if (!pic16_sameRegs(AOP(IC_LEFT(ic)), AOP(IC_RESULT(ic))) ) {
1610 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_LEFT(ic)),offset));
1611 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1613 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(IC_RIGHT(ic)),offset));
1615 pic16_emitpcode(POC_INCFSZW,pic16_popGet(AOP(IC_RIGHT(ic)),offset));
1616 pic16_emitpcode(POC_SUBWF, pic16_popGet(AOP(IC_RESULT(ic)),offset));
1624 // adjustArithmeticResult(ic);
1627 pic16_freeAsmop(IC_LEFT(ic),NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
1628 pic16_freeAsmop(IC_RIGHT(ic),NULL,ic,(RESULTONSTACK(ic) ? FALSE : TRUE));
1629 pic16_freeAsmop(IC_RESULT(ic),NULL,ic,TRUE);
1633 /*-----------------------------------------------------------------*
1634 * pic_genUMult8XLit_8 - unsigned multiplication of two 8-bit numbers.
1637 *-----------------------------------------------------------------*/
1638 void pic16_genUMult8XLit_8 (operand *left,
1646 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1648 if (AOP_TYPE(right) != AOP_LIT){
1649 fprintf(stderr,"%s %d - right operand is not a literal\n",__FILE__,__LINE__);
1653 lit = (unsigned int)floatFromVal(AOP(right)->aopu.aop_lit);
1655 pic16_emitpcomment("Unrolled 8 X 8 multiplication");
1656 pic16_emitpcomment("FIXME: the function does not support result==WREG");
1658 same = pic16_sameRegs(AOP(left), AOP(result));
1662 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),0));
1665 // its faster to left shift
1667 pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(left),0));
1671 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 0));
1672 pic16_emitpcode(POC_MULLW, pic16_popGetLit(lit));
1673 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_prodl),
1674 pic16_popGet(AOP(result), 0)));
1678 // operands different
1681 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result), 0));
1685 pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left), 0));
1686 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 0));
1689 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 0));
1690 pic16_emitpcode(POC_MULLW, pic16_popGetLit(lit));
1691 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_prodl),
1692 pic16_popGet(AOP(result), 0)));
1698 /*-----------------------------------------------------------------------*
1699 * pic_genUMult16XLit_16 - unsigned multiplication of two 16-bit numbers *
1700 *-----------------------------------------------------------------------*/
1701 void pic16_genUMult16XLit_16 (operand *left,
1705 pCodeOp *pct1, *pct2, *pct3, *pct4;
1710 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1712 if (AOP_TYPE(right) != AOP_LIT){
1713 fprintf(stderr,"%s %d - right operand is not a literal\n",__FILE__,__LINE__);
1717 lit = (unsigned int)floatFromVal(AOP(right)->aopu.aop_lit);
1720 same = pic16_sameRegs(AOP(left), AOP(result));
1724 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),0));
1725 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),1));
1728 // its faster to left shift
1730 pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(left),0));
1731 pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(left),1));
1735 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1737 pct1 = pic16_popGetTempReg();
1738 pct2 = pic16_popGetTempReg();
1739 pct3 = pic16_popGetTempReg();
1740 pct4 = pic16_popGetTempReg();
1742 pic16_emitpcode(POC_MOVLW, pic16_popGetLit( lit & 0xff));
1743 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 0));
1744 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1745 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct1)));
1746 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1747 pic16_popCopyReg(&pic16_pc_prodh), pic16_pCodeOpCopy(pct2)));
1749 /* WREG still holds the low literal */
1750 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 1));
1751 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1752 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct3)));
1754 pic16_emitpcode(POC_MOVLW, pic16_popGetLit( lit>>8 ));
1755 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 0));
1756 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1757 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct4)));
1760 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1761 pct1, pic16_popGet(AOP(result), 0)));
1762 pic16_emitpcode(POC_MOVFW, pic16_pCodeOpCopy(pct2));
1763 pic16_emitpcode(POC_ADDFW, pic16_pCodeOpCopy(pct3));
1764 pic16_emitpcode(POC_ADDFWC, pic16_pCodeOpCopy(pct4));
1765 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 1));
1767 pic16_popReleaseTempReg( pct4 );
1768 pic16_popReleaseTempReg( pct3 );
1769 pic16_popReleaseTempReg( pct2 );
1770 pic16_popReleaseTempReg( pct1 );
1774 // operands different
1777 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result), 0));
1778 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result), 1));
1782 pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left), 0));
1783 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 0));
1784 pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left), 1));
1785 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 1));
1789 pic16_emitpcode(POC_MOVLW, pic16_popGetLit( lit & 0xff));
1790 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 0));
1791 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1792 pic16_popCopyReg(&pic16_pc_prodl), pic16_popGet(AOP(result), 0)));
1793 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1794 pic16_popCopyReg(&pic16_pc_prodh), pic16_popGet(AOP(result), 1)));
1796 /* WREG still holds the low literal */
1797 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 1));
1798 pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_prodl));
1799 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result), 1));
1801 pic16_emitpcode(POC_MOVLW, pic16_popGetLit( lit>>8 ));
1802 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 0));
1803 pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_prodl));
1804 pic16_emitpcode(POC_ADDWFC, pic16_popGet(AOP(result), 1));
1812 /*-----------------------------------------------------------------*
1813 * genUMult8X8_8 - unsigned multiplication of two 8-bit numbers.
1816 *-----------------------------------------------------------------*/
1817 void pic16_genUMult8X8_8 (operand *left,
1822 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1825 if (AOP_TYPE(right) == AOP_LIT) {
1826 pic16_genUMult8XLit_8(left,right,result);
1836 /* if result == right then exchange left and right */
1837 if(pic16_sameRegs(AOP(result), AOP(right))) {
1844 if(AOP_TYPE(left) != AOP_ACC) {
1846 if(AOP_TYPE(right) != AOP_ACC) {
1847 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 0));
1848 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 0));
1850 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 0));
1853 // left is WREG, right cannot be WREG (or can?!)
1854 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(right), 0));
1857 /* result is in PRODL:PRODH */
1858 if(AOP_TYPE(result) != AOP_ACC) {
1859 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(pic16_popCopyReg(&pic16_pc_prodl),
1860 pic16_popGet(AOP(result), 0)));
1862 pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_prodl));
1866 /*------------------------------------------------------------------*
1867 * genUMult16X16_16 - unsigned multiplication of two 16-bit numbers *
1868 *------------------------------------------------------------------*/
1869 void pic16_genUMult16X16_16 (operand *left,
1874 pCodeOp *pct1, *pct2, *pct3, *pct4;
1876 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1879 if (AOP_TYPE(right) == AOP_LIT) {
1880 pic16_genUMult8XLit_8(left,right,result);
1888 /* if result == right then exchange left and right */
1889 if(pic16_sameRegs(AOP(result), AOP(right))) {
1897 if(pic16_sameRegs(AOP(result), AOP(left))) {
1899 pct1 = pic16_popGetTempReg();
1900 pct2 = pic16_popGetTempReg();
1901 pct3 = pic16_popGetTempReg();
1902 pct4 = pic16_popGetTempReg();
1904 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 0));
1905 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 0));
1906 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1907 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct1)));
1908 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1909 pic16_popCopyReg(&pic16_pc_prodh), pic16_pCodeOpCopy(pct2)));
1911 /* WREG still holds the lower left */
1912 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 1));
1913 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1914 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct3)));
1916 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 1));
1917 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 0));
1918 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1919 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct4)));
1922 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1923 pic16_pCodeOpCopy( pct1 ), pic16_popGet(AOP(result), 0)));
1924 pic16_emitpcode(POC_MOVFW, pic16_pCodeOpCopy( pct2 ));
1925 pic16_emitpcode(POC_ADDFW, pic16_pCodeOpCopy(pct3));
1926 pic16_emitpcode(POC_ADDFWC, pic16_pCodeOpCopy(pct4));
1927 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 1));
1929 pic16_popReleaseTempReg( pct4 );
1930 pic16_popReleaseTempReg( pct3 );
1931 pic16_popReleaseTempReg( pct2 );
1932 pic16_popReleaseTempReg( pct1 );
1936 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 0));
1937 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 0));
1938 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1939 pic16_popCopyReg(&pic16_pc_prodl), pic16_popGet(AOP(result), 0)));
1940 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
1941 pic16_popCopyReg(&pic16_pc_prodh), pic16_popGet(AOP(result), 1)));
1943 /* WREG still holds the lower left */
1944 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 1));
1945 pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_prodl));
1946 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result), 1));
1948 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 1));
1949 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 0));
1950 pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_prodl));
1951 pic16_emitpcode(POC_ADDWFC, pic16_popGet(AOP(result), 1));
1956 void pic16_genSMult16X16_16(operand *left,
1964 /*-----------------------------------------------------------------*
1965 * pic16_genSMult8X8_16 - signed multiplication of two 8-bit numbers
1967 * this routine will call the unsigned multiply routine and then
1968 * post-fix the sign bit.
1969 *-----------------------------------------------------------------*/
1970 void pic16_genSMult8X8_8 (operand *left,
1973 pCodeOpReg *result_hi)
1975 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
1979 result_hi = PCOR(pic16_popGet(AOP(result),1));
1983 pic16_genUMult8X8_8(left,right,result);
1987 pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(left),0,FALSE,FALSE),7,0));
1988 pic16_emitpcode(POC_SUBWF, pic16_popCopyReg(result_hi));
1989 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left),0));
1990 pic16_emitpcode(POC_BTFSC, pic16_newpCodeOpBit(pic16_aopGet(AOP(right),0,FALSE,FALSE),7,0));
1991 pic16_emitpcode(POC_SUBWF, pic16_popGet(AOP(result),1));
1996 /*-----------------------------------------------------------------*
1997 * pic16_genMult8X8_8 - multiplication of two 8-bit numbers *
1998 *-----------------------------------------------------------------*/
1999 void pic16_genMult8X8_8 (operand *left,
2003 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
2005 if(AOP_TYPE(right) == AOP_LIT)
2006 pic16_genUMult8XLit_8(left,right,result);
2008 pic16_genUMult8X8_8(left,right,result);
2012 /*-----------------------------------------------------------------*
2013 * pic16_genMult16X16_16 - multiplication of two 16-bit numbers *
2014 *-----------------------------------------------------------------*/
2015 void pic16_genMult16X16_16 (operand *left,
2019 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
2021 if (AOP_TYPE(right) == AOP_LIT)
2022 pic16_genUMult16XLit_16(left,right,result);
2024 pic16_genUMult16X16_16(left,right,result);
2031 /*-----------------------------------------------------------------------*
2032 * pic_genUMult32XLit_32 - unsigned multiplication of two 32-bit numbers *
2033 *-----------------------------------------------------------------------*/
2034 void pic16_genUMult32XLit_32 (operand *left,
2038 pCodeOp *pct1, *pct2, *pct3, *pct4;
2043 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
2045 if (AOP_TYPE(right) != AOP_LIT){
2046 fprintf(stderr,"%s %d - right operand is not a literal\n",__FILE__,__LINE__);
2050 lit = (unsigned int)floatFromVal(AOP(right)->aopu.aop_lit);
2053 same = pic16_sameRegs(AOP(left), AOP(result));
2057 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),0));
2058 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result),1));
2061 // its faster to left shift
2063 pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(left),0));
2064 pic16_emitpcode(POC_RLCF, pic16_popGet(AOP(left),1));
2068 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
2070 pct1 = pic16_popGetTempReg();
2071 pct2 = pic16_popGetTempReg();
2072 pct3 = pic16_popGetTempReg();
2073 pct4 = pic16_popGetTempReg();
2075 pic16_emitpcode(POC_MOVLW, pic16_popGetLit( lit & 0xff));
2076 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 0));
2077 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2078 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct1)));
2079 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2080 pic16_popCopyReg(&pic16_pc_prodh), pic16_pCodeOpCopy(pct2)));
2082 /* WREG still holds the low literal */
2083 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 1));
2084 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2085 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct3)));
2087 pic16_emitpcode(POC_MOVLW, pic16_popGetLit( lit>>8 ));
2088 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 0));
2089 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2090 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct4)));
2093 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2094 pct1, pic16_popGet(AOP(result), 0)));
2095 pic16_emitpcode(POC_MOVFW, pic16_pCodeOpCopy(pct2));
2096 pic16_emitpcode(POC_ADDFW, pic16_pCodeOpCopy(pct3));
2097 pic16_emitpcode(POC_ADDFWC, pic16_pCodeOpCopy(pct4));
2098 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 1));
2100 pic16_popReleaseTempReg( pct4 );
2101 pic16_popReleaseTempReg( pct3 );
2102 pic16_popReleaseTempReg( pct2 );
2103 pic16_popReleaseTempReg( pct1 );
2107 // operands different
2110 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result), 0));
2111 pic16_emitpcode(POC_CLRF, pic16_popGet(AOP(result), 1));
2115 pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left), 0));
2116 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 0));
2117 pic16_emitpcode(POC_RLCFW, pic16_popGet(AOP(left), 1));
2118 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 1));
2122 pic16_emitpcode(POC_MOVLW, pic16_popGetLit( lit & 0xff));
2123 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 0));
2124 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2125 pic16_popCopyReg(&pic16_pc_prodl), pic16_popGet(AOP(result), 0)));
2126 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2127 pic16_popCopyReg(&pic16_pc_prodh), pic16_popGet(AOP(result), 1)));
2129 /* WREG still holds the low literal */
2130 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 1));
2131 pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_prodl));
2132 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result), 1));
2134 pic16_emitpcode(POC_MOVLW, pic16_popGetLit( lit>>8 ));
2135 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(left), 0));
2136 pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_prodl));
2137 pic16_emitpcode(POC_ADDWFC, pic16_popGet(AOP(result), 1));
2145 /*------------------------------------------------------------------*
2146 * genUMult32X32_32 - unsigned multiplication of two 32-bit numbers *
2147 *------------------------------------------------------------------*/
2148 void pic16_genUMult32X32_32 (operand *left,
2153 pCodeOp *pct1, *pct2, *pct3, *pct4;
2155 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
2158 if (AOP_TYPE(right) == AOP_LIT) {
2159 pic16_genUMult8XLit_8(left,right,result);
2167 /* if result == right then exchange left and right */
2168 if(pic16_sameRegs(AOP(result), AOP(right))) {
2176 if(pic16_sameRegs(AOP(result), AOP(left))) {
2178 pct1 = pic16_popGetTempReg();
2179 pct2 = pic16_popGetTempReg();
2180 pct3 = pic16_popGetTempReg();
2181 pct4 = pic16_popGetTempReg();
2183 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 0));
2184 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 0));
2185 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2186 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct1)));
2187 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2188 pic16_popCopyReg(&pic16_pc_prodh), pic16_pCodeOpCopy(pct2)));
2190 /* WREG still holds the lower left */
2191 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 1));
2192 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2193 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct3)));
2195 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 1));
2196 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 0));
2197 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2198 pic16_popCopyReg(&pic16_pc_prodl), pic16_pCodeOpCopy(pct4)));
2201 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2202 pic16_pCodeOpCopy( pct1 ), pic16_popGet(AOP(result), 0)));
2203 pic16_emitpcode(POC_MOVFW, pic16_pCodeOpCopy( pct2 ));
2204 pic16_emitpcode(POC_ADDFW, pic16_pCodeOpCopy(pct3));
2205 pic16_emitpcode(POC_ADDFWC, pic16_pCodeOpCopy(pct4));
2206 pic16_emitpcode(POC_MOVWF, pic16_popGet(AOP(result), 1));
2208 pic16_popReleaseTempReg( pct4 );
2209 pic16_popReleaseTempReg( pct3 );
2210 pic16_popReleaseTempReg( pct2 );
2211 pic16_popReleaseTempReg( pct1 );
2215 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 0));
2216 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 0));
2217 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2218 pic16_popCopyReg(&pic16_pc_prodl), pic16_popGet(AOP(result), 0)));
2219 pic16_emitpcode(POC_MOVFF, pic16_popGet2p(
2220 pic16_popCopyReg(&pic16_pc_prodh), pic16_popGet(AOP(result), 1)));
2222 /* WREG still holds the lower left */
2223 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 1));
2224 pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_prodl));
2225 pic16_emitpcode(POC_ADDWF, pic16_popGet(AOP(result), 1));
2227 pic16_emitpcode(POC_MOVFW, pic16_popGet(AOP(left), 1));
2228 pic16_emitpcode(POC_MULWF, pic16_popGet(AOP(right), 0));
2229 pic16_emitpcode(POC_MOVFW, pic16_popCopyReg(&pic16_pc_prodl));
2230 pic16_emitpcode(POC_ADDWFC, pic16_popGet(AOP(result), 1));
2235 /*-----------------------------------------------------------------*
2236 * pic16_genMult32X32_32 - multiplication of two 32-bit numbers *
2237 *-----------------------------------------------------------------*/
2238 void pic16_genMult32X32_32 (operand *left,
2242 DEBUGpic16_emitcode ("; ***","%s %d",__FUNCTION__,__LINE__);
2244 if (AOP_TYPE(right) == AOP_LIT)
2245 pic16_genUMult32XLit_32(left,right,result);
2247 pic16_genUMult32X32_32(left,right,result);
2258 /*-----------------------------------------------------------------*/
2259 /* constMult - generates code for multiplication by a constant */
2260 /*-----------------------------------------------------------------*/
2261 void genMultConst(unsigned C)
2265 unsigned sr3; // Shift right 3
2271 Convert a string of 3 binary 1's in the lit into
2275 mask = 7 << ( (size*8) - 3);
2279 while(mask < (1<<size*8)) {
2281 if( (mask & lit) == lit) {
2284 /* We found 3 (or more) consecutive 1's */
2286 lsb = mask & ~(mask & (mask-1)); // lsb of mask.
2288 consecutive_bits = ((lit + lsb) & lit) ^ lit;
2290 lit ^= consecutive_bits;
2294 sr3 |= (consecutive + lsb);