--- /dev/null
+/*-------------------------------------------------------------------------
+
+ pcodepeep.c - post code generation
+ Written By - Scott Dattalo scott@dattalo.com
+ Ported to PIC16 By - Martin Dubuc m.dubuc@rogers.com
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option) any
+ later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+-------------------------------------------------------------------------*/
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "common.h" // Include everything in the SDCC src directory
+#include "newalloc.h"
+//#define PCODE_DEBUG
+#include "pcode.h"
+#include "pcodeflow.h"
+#include "ralloc.h"
+
+#if defined(__BORLANDC__) || defined(_MSC_VER)
+#define STRCASECMP stricmp
+#else
+#define STRCASECMP strcasecmp
+#endif
+
+pCodeOp *pic16_popCopyGPR2Bit(pCodeOpReg *pc, int bitval);
+
+pCodeOp *pic16_newpCodeOpWild(int id, pCodeWildBlock *pcwb, pCodeOp *subtype);
+pCode *pic16_newpCodeWild(int pCodeID, pCodeOp *optional_operand, pCodeOp *optional_label);
+pCode * pic16_findNextInstruction(pCode *pc);
+int pic16_getpCode(char *mnem,int dest);
+int pic16_getpCodePeepCommand(char *cmd);
+void pic16_pBlockMergeLabels(pBlock *pb);
+char *pCode2str(char *str, int size, pCode *pc);
+char *pic16_get_op( pCodeOp *pcop,char *buf,int buf_size);
+
+extern pCodeInstruction *pic16Mnemonics[];
+
+
+#define IS_PCCOMMENT(x) ( x && (x->type==PC_COMMENT))
+
+/****************************************************************/
+/*
+ * rootRules - defined in SDCCpeep.c
+ * This is a pointer to the (parsed) peephole rules that are
+ * defined in peep.def.
+ */
+
+//extern peepRule *rootRules;
+
+
+
+
+/****************************************************************/
+/****************************************************************/
+typedef struct _DLL {
+ struct _DLL *prev;
+ struct _DLL *next;
+ // void *data;
+} _DLL;
+
+
+typedef struct pCodePeepSnippets
+{
+ _DLL dll;
+ pCodePeep *peep;
+} pCodePeepSnippets;
+
+
+/****************************************************************/
+/* */
+/* peepSnippets - */
+/* */
+/****************************************************************/
+
+static pCodePeepSnippets *peepSnippets=NULL;
+
+/****************************************************************/
+/* */
+/* curPeep */
+/* */
+/****************************************************************/
+
+//static pCodePeep *curPeep=NULL;
+
+/****************************************************************/
+/* */
+/* curBlock */
+/* */
+/****************************************************************/
+
+//static pBlock *curBlock=NULL;
+
+
+/****************************************************************/
+/* */
+/* max wild cards in a peep rule */
+/* */
+/****************************************************************/
+
+//static int sMaxWildVar = 0;
+//static int sMaxWildMnem = 0;
+
+
+typedef struct pCodeToken
+{
+ int tt; // token type;
+ union {
+ char c; // character
+ int n; // number
+ char *s; // string
+ } tok;
+
+} pCodeToken;
+
+pCodeToken tokArr[50];
+static unsigned tokIdx=0;
+
+
+typedef enum {
+ PCT_NULL=0,
+ PCT_SPACE=1,
+ PCT_PERCENT,
+ PCT_LESSTHAN,
+ PCT_GREATERTHAN,
+ PCT_COLON,
+ PCT_COMMA,
+ PCT_COMMENT,
+ PCT_STRING,
+ PCT_NUMBER
+
+} pCodeTokens;
+
+
+typedef struct parsedPattern {
+ struct pcPattern *pcp;
+ pCodeToken *pct;
+} parsedPattern;
+
+#define MAX_PARSEDPATARR 50
+parsedPattern parsedPatArr[MAX_PARSEDPATARR];
+static unsigned int parsedPatIdx=0;
+
+
+typedef enum {
+ PCP_LABEL=1,
+ PCP_NUMBER,
+ PCP_STR,
+ PCP_WILDVAR,
+ PCP_WILDSTR,
+ PCP_COMMA,
+ PCP_COMMENT
+} pCodePatterns;
+
+static char pcpat_label[] = {PCT_PERCENT, PCT_NUMBER, PCT_COLON, 0};
+static char pcpat_number[] = {PCT_NUMBER, 0};
+static char pcpat_string[] = {PCT_STRING, 0};
+static char pcpat_wildString[] = {PCT_PERCENT, PCT_STRING, 0};
+static char pcpat_wildVar[] = {PCT_PERCENT, PCT_NUMBER, 0};
+static char pcpat_comma[] = {PCT_COMMA, 0};
+static char pcpat_comment[] = {PCT_COMMENT, 0};
+
+
+typedef struct pcPattern {
+ char pt; // Pattern type
+ char *tokens; // list of tokens that describe the pattern
+ void * (*f) (void *,pCodeWildBlock *);
+} pcPattern;
+
+static pcPattern pcpArr[] = {
+ {PCP_LABEL, pcpat_label, NULL},
+ {PCP_WILDSTR, pcpat_wildString, NULL},
+ {PCP_STR, pcpat_string, NULL},
+ {PCP_WILDVAR, pcpat_wildVar, NULL},
+ {PCP_COMMA, pcpat_comma, NULL},
+ {PCP_COMMENT, pcpat_comment, NULL},
+ {PCP_NUMBER, pcpat_number, NULL}
+};
+
+#define PCPATTERNS (sizeof(pcpArr)/sizeof(pcPattern))
+
+// Assembly Line Token
+typedef enum {
+ ALT_LABEL=1,
+ ALT_COMMENT,
+ ALT_MNEM0,
+ ALT_MNEM0A,
+ ALT_MNEM1,
+ ALT_MNEM1A,
+ ALT_MNEM1B,
+ ALT_MNEM2,
+ ALT_MNEM2A,
+ ALT_MNEM3
+} altPatterns;
+
+static char alt_comment[] = { PCP_COMMENT, 0};
+static char alt_label[] = { PCP_LABEL, 0};
+static char alt_mnem0[] = { PCP_STR, 0};
+static char alt_mnem0a[] = { PCP_WILDVAR, 0};
+static char alt_mnem1[] = { PCP_STR, PCP_STR, 0};
+static char alt_mnem1a[] = { PCP_STR, PCP_WILDVAR, 0};
+static char alt_mnem1b[] = { PCP_STR, PCP_NUMBER, 0};
+static char alt_mnem2[] = { PCP_STR, PCP_STR, PCP_COMMA, PCP_STR, 0};
+static char alt_mnem2a[] = { PCP_STR, PCP_WILDVAR, PCP_COMMA, PCP_STR, 0};
+static char alt_mnem3[] = { PCP_STR, PCP_STR, PCP_COMMA, PCP_NUMBER, 0};
+
+static void * cvt_altpat_label(void *pp,pCodeWildBlock *pcwb);
+static void * cvt_altpat_comment(void *pp,pCodeWildBlock *pcwb);
+static void * cvt_altpat_mnem0(void *pp,pCodeWildBlock *pcwb);
+static void * cvt_altpat_mnem0a(void *pp,pCodeWildBlock *pcwb);
+static void * cvt_altpat_mnem1(void *pp,pCodeWildBlock *pcwb);
+static void * cvt_altpat_mnem1a(void *pp,pCodeWildBlock *pcwb);
+static void * cvt_altpat_mnem1b(void *pp,pCodeWildBlock *pcwb);
+static void * cvt_altpat_mnem2(void *pp,pCodeWildBlock *pcwb);
+static void * cvt_altpat_mnem2a(void *pp,pCodeWildBlock *pcwb);
+static void * cvt_altpat_mnem3(void *pp,pCodeWildBlock *pcwb);
+
+static pcPattern altArr[] = {
+ {ALT_LABEL, alt_label, cvt_altpat_label},
+ {ALT_COMMENT, alt_comment,cvt_altpat_comment},
+ {ALT_MNEM3, alt_mnem3, cvt_altpat_mnem3},
+ {ALT_MNEM2A, alt_mnem2a, cvt_altpat_mnem2a},
+ {ALT_MNEM2, alt_mnem2, cvt_altpat_mnem2},
+ {ALT_MNEM1B, alt_mnem1b, cvt_altpat_mnem1b},
+ {ALT_MNEM1A, alt_mnem1a, cvt_altpat_mnem1a},
+ {ALT_MNEM1, alt_mnem1, cvt_altpat_mnem1},
+ {ALT_MNEM0A, alt_mnem0a, cvt_altpat_mnem0a},
+ {ALT_MNEM0, alt_mnem0, cvt_altpat_mnem0},
+
+};
+
+#define ALTPATTERNS (sizeof(altArr)/sizeof(pcPattern))
+
+// forward declarations
+static void * DLL_append(_DLL *list, _DLL *next);
+
+/*-----------------------------------------------------------------*/
+/* cvt_extract_destination - helper function extracts the register */
+/* destination from a parsedPattern. */
+/* */
+/*-----------------------------------------------------------------*/
+static int cvt_extract_destination(parsedPattern *pp)
+{
+
+ if(pp->pct[0].tt == PCT_STRING) {
+
+ // just check first letter for now
+
+ if(toupper(*pp->pct[0].tok.s) == 'F')
+ return 1;
+
+ } else if (pp->pct[0].tt == PCT_NUMBER) {
+
+ if(pp->pct[0].tok.n)
+ return 1;
+ }
+
+ return 0;
+
+}
+
+/*-----------------------------------------------------------------*/
+/* pCodeOp *cvt_extract_status(char *reg, char *bit) */
+/* if *reg is the "status" register and *bit is one of the */
+/* status bits, then this function will create a new pCode op */
+/* containing the status register. */
+/*-----------------------------------------------------------------*/
+
+static pCodeOp *cvt_extract_status(char *reg, char *bit)
+{
+ int len;
+
+ if(STRCASECMP(reg, pic16_pc_status.pcop.name))
+ return NULL;
+
+ len = strlen(bit);
+
+ if(len == 1) {
+ // check C,Z
+ if(toupper(*bit) == 'C')
+ return PCOP(pic16_popCopyGPR2Bit(&pic16_pc_status,PIC_C_BIT));
+ if(toupper(*bit) == 'Z')
+ return PCOP(pic16_popCopyGPR2Bit(&pic16_pc_status,PIC_Z_BIT));
+ }
+
+ // Check DC
+ if(len ==2 && toupper(bit[0]) == 'D' && toupper(bit[1]) == 'C')
+ return PCOP(pic16_popCopyGPR2Bit(&pic16_pc_status,PIC_DC_BIT));
+
+ return NULL;
+
+}
+
+/*-----------------------------------------------------------------*/
+/* cvt_altpat_label - convert assembly line type to a pCode label */
+/* INPUT: pointer to the parsedPattern */
+/* */
+/* pp[0] - label */
+/* */
+/* label pattern => '%' number ':' */
+/* at this point, we wish to extract only the 'number' */
+/* */
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_label(void *pp,pCodeWildBlock *pcwb)
+{
+ parsedPattern *p = pp;
+
+ DFPRINTF((stderr,"altpat_label with ID = %d\n",p->pct[1].tok.n));
+ return pic16_newpCodeLabel(NULL,-p->pct[1].tok.n);
+
+}
+
+/*-----------------------------------------------------------------*/
+/* cvt_altpat_comment - convert assembly line type to a comment */
+/* INPUT: pointer to the parsedPattern */
+/* */
+/* pp[0] - comment */
+/* */
+/* */
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_comment(void *pp,pCodeWildBlock *pcwb)
+{
+ parsedPattern *p = pp;
+
+ DFPRINTF((stderr,"altpat_comment = %s\n",p->pct[0].tok.s));
+ return pic16_newpCodeCharP(p->pct[0].tok.s);
+
+}
+
+/*-----------------------------------------------------------------*/
+/* cvt_altpat_mem0 - convert assembly line type to a wild pCode */
+/* instruction */
+/* */
+/* pp[0] - str */
+/* */
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_mnem0(void *pp,pCodeWildBlock *pcwb)
+{
+ parsedPattern *p = pp;
+ int opcode;
+
+ pCodeInstruction *pci=NULL;
+
+ DFPRINTF((stderr,"altpat_mnem0 %s\n", p->pct[0].tok.s));
+
+ opcode = pic16_getpCode(p->pct[0].tok.s,0);
+
+ if(opcode < 0) {
+ /* look for special command strings like _NOTBITSKIP_ */
+
+ //fprintf(stderr, "Bad mnemonic\n");
+
+ opcode = pic16_getpCodePeepCommand(p->pct[0].tok.s);
+ //if(opcode > 0)
+ // fprintf(stderr," but valid peep command: %s, key = %d\n",p->pct[0].tok.s,opcode);
+ return NULL;
+ }
+
+ pci = PCI(pic16_newpCode(opcode, NULL));
+
+ if(!pci)
+ fprintf(stderr,"couldn't find mnemonic\n");
+
+
+ return pci;
+}
+
+/*-----------------------------------------------------------------*/
+/* cvt_altpat_mem0a - convert assembly line type to a wild pCode */
+/* instruction */
+/* */
+/* pp[0] - wild var */
+/* */
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_mnem0a(void *pp, pCodeWildBlock *pcwb)
+{
+ parsedPattern *p = pp;
+
+ DFPRINTF((stderr,"altpat_mnem0a wild mnem # %d\n", p[0].pct[1].tok.n));
+
+ /* Save the index of the maximum wildcard mnemonic */
+
+ //if(p[0].pct[1].tok.n > sMaxWildVar)
+ // sMaxWildMnem = p[0].pct[1].tok.n;
+
+ if(p[0].pct[1].tok.n > pcwb->nwildpCodes)
+ pcwb->nwildpCodes = p[0].pct[1].tok.n;
+
+ return pic16_newpCodeWild(p[0].pct[1].tok.n,NULL,NULL);
+
+}
+
+/*-----------------------------------------------------------------*/
+/* cvt_altpat_mem1 - convert assembly line type to a pCode */
+/* instruction with 1 operand. */
+/* */
+/* pp[0] - mnem */
+/* pp[1] - Operand */
+/* */
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_mnem1(void *pp,pCodeWildBlock *pcwb)
+{
+
+ parsedPattern *p = pp;
+ int opcode;
+
+ pCodeInstruction *pci=NULL;
+ pCodeOp *pcosubtype;
+
+ DFPRINTF((stderr,"altpat_mnem1 %s var %s\n", p->pct[0].tok.s,p[1].pct[0].tok.s));
+
+ opcode = pic16_getpCode(p->pct[0].tok.s,0);
+ if(opcode < 0) {
+ //fprintf(stderr, "Bad mnemonic\n");
+ opcode = pic16_getpCodePeepCommand(p->pct[0].tok.s);
+ //if(opcode > 0)
+ //fprintf(stderr," but valid peep command: %s, key = %d\n",p->pct[0].tok.s,opcode);
+
+ return NULL;
+ }
+
+ if(pic16Mnemonics[opcode]->isBitInst)
+ pcosubtype = pic16_newpCodeOp(p[1].pct[0].tok.s,PO_BIT);
+ else
+ pcosubtype = pic16_newpCodeOp(p[1].pct[0].tok.s,PO_GPR_REGISTER);
+
+
+ pci = PCI(pic16_newpCode(opcode, pcosubtype));
+
+ if(!pci)
+ fprintf(stderr,"couldn't find mnemonic\n");
+
+
+ return pci;
+}
+
+/*-----------------------------------------------------------------*/
+/* cvt_altpat_mem1a - convert assembly line type to a pCode */
+/* instruction with 1 wild operand. */
+/* */
+/* pp[0] - mnem */
+/* pp[1] - wild var */
+/* */
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_mnem1a(void *pp,pCodeWildBlock *pcwb)
+{
+ parsedPattern *p = pp;
+ int opcode;
+
+ pCodeInstruction *pci=NULL;
+ pCodeOp *pcosubtype;
+
+ DFPRINTF((stderr,"altpat_mnem1a %s var %d\n", p->pct[0].tok.s,p[1].pct[1].tok.n));
+
+ opcode = pic16_getpCode(p->pct[0].tok.s,0);
+ if(opcode < 0) {
+ int cmd_id = pic16_getpCodePeepCommand(p->pct[0].tok.s);
+ pCode *pc=NULL;
+
+ if(cmd_id<0) {
+ fprintf(stderr, "Bad mnemonic\n");
+ return NULL;
+ }
+
+ if(p[0].pct[1].tok.n > pcwb->nwildpCodes)
+ pcwb->nwildpCodes = p[0].pct[1].tok.n;
+
+ pc = pic16_newpCodeWild(p[1].pct[1].tok.n,NULL,NULL);
+
+ switch(cmd_id) {
+ case NOTBITSKIP:
+ PCW(pc)->mustNotBeBitSkipInst = 1;
+ break;
+ case BITSKIP:
+ PCW(pc)->mustBeBitSkipInst = 1;
+ break;
+ case INVERTBITSKIP:
+ PCW(pc)->invertBitSkipInst = 1;
+ }
+ return pc;
+ }
+
+ if(pic16Mnemonics[opcode]->isBitInst)
+ pcosubtype = pic16_newpCodeOpBit(NULL,-1,0);
+ else
+ pcosubtype = pic16_newpCodeOp(NULL,PO_GPR_REGISTER);
+
+
+ pci = PCI(pic16_newpCode(opcode,
+ pic16_newpCodeOpWild(p[1].pct[1].tok.n, pcwb, pcosubtype)));
+
+ /* Save the index of the maximum wildcard variable */
+ //if(p[1].pct[1].tok.n > sMaxWildVar)
+ // sMaxWildVar = p[1].pct[1].tok.n;
+
+ if(p[1].pct[1].tok.n > pcwb->nvars)
+ pcwb->nvars = p[1].pct[1].tok.n;
+
+ if(!pci)
+ fprintf(stderr,"couldn't find mnemonic\n");
+
+
+ return pci;
+}
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_mnem1b(void *pp,pCodeWildBlock *pcwb)
+{
+ parsedPattern *p = pp;
+ int opcode;
+
+ pCodeInstruction *pci=NULL;
+
+ DFPRINTF((stderr,"altpat_mnem1b %s var %d\n", p->pct[0].tok.s,p[1].pct[0].tok.n));
+
+ opcode = pic16_getpCode(p->pct[0].tok.s,0);
+ if(opcode < 0) {
+ fprintf(stderr, "Bad mnemonic\n");
+ return NULL;
+ }
+
+ pci = PCI(pic16_newpCode(opcode, pic16_newpCodeOpLit(p[1].pct[0].tok.n) ));
+
+ if(!pci)
+ fprintf(stderr,"couldn't find mnemonic\n");
+
+
+ return pci;
+}
+
+/*-----------------------------------------------------------------*/
+/* cvt_altpat_mnem2 */
+/* */
+/* pp[0] - mnem */
+/* pp[1] - var */
+/* pp[2] - comma */
+/* pp[3] - destination */
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_mnem2(void *pp,pCodeWildBlock *pcwb)
+{
+ parsedPattern *p = pp;
+ int opcode;
+ int dest;
+
+ pCodeInstruction *pci=NULL;
+ pCodeOp *pcosubtype;
+
+ dest = cvt_extract_destination(&p[3]);
+
+ DFPRINTF((stderr,"altpat_mnem2 %s var %s destination %s(%d)\n",
+ p->pct[0].tok.s,
+ p[1].pct[0].tok.s,
+ p[3].pct[0].tok.s,
+ dest));
+
+
+ opcode = pic16_getpCode(p->pct[0].tok.s,dest);
+ if(opcode < 0) {
+ fprintf(stderr, "Bad mnemonic\n");
+ return NULL;
+ }
+
+ if(pic16Mnemonics[opcode]->isBitInst) {
+ pcosubtype = cvt_extract_status(p[1].pct[0].tok.s, p[3].pct[0].tok.s);
+ if(pcosubtype == NULL) {
+ fprintf(stderr, "bad operand?\n");
+ return NULL;
+ }
+
+ } else
+ pcosubtype = pic16_newpCodeOp(p[1].pct[0].tok.s,PO_GPR_REGISTER);
+
+
+ pci = PCI(pic16_newpCode(opcode,pcosubtype));
+
+ if(!pci)
+ fprintf(stderr,"couldn't find mnemonic\n");
+
+ return pci;
+
+}
+
+/*-----------------------------------------------------------------*/
+/* cvt_altpat_mem2a - convert assembly line type to a pCode */
+/* instruction with 1 wild operand and a */
+/* destination operand (e.g. w or f) */
+/* */
+/* pp[0] - mnem */
+/* pp[1] - wild var */
+/* pp[2] - comma */
+/* pp[3] - destination */
+/* */
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_mnem2a(void *pp,pCodeWildBlock *pcwb)
+{
+ parsedPattern *p = pp;
+ int opcode;
+ int dest;
+
+ pCodeInstruction *pci=NULL;
+ pCodeOp *pcosubtype;
+
+ if(!pcwb) {
+ fprintf(stderr,"ERROR %s:%d - can't assemble line\n",__FILE__,__LINE__);
+ return NULL;
+ }
+
+ dest = cvt_extract_destination(&p[3]);
+
+ DFPRINTF((stderr,"altpat_mnem2a %s var %d destination %s(%d)\n",
+ p->pct[0].tok.s,
+ p[1].pct[1].tok.n,
+ p[3].pct[0].tok.s,
+ dest));
+
+
+ opcode = pic16_getpCode(p->pct[0].tok.s,dest);
+ if(opcode < 0) {
+ fprintf(stderr, "Bad mnemonic\n");
+ return NULL;
+ }
+
+ if(pic16Mnemonics[opcode]->isBitInst)
+ pcosubtype = pic16_newpCodeOp(NULL,PO_BIT);
+ else
+ pcosubtype = pic16_newpCodeOp(NULL,PO_GPR_REGISTER);
+
+
+ pci = PCI(pic16_newpCode(opcode,
+ pic16_newpCodeOpWild(p[1].pct[1].tok.n, pcwb, pcosubtype)));
+
+ /* Save the index of the maximum wildcard variable */
+ //if(p[1].pct[1].tok.n > sMaxWildVar)
+ // sMaxWildVar = p[1].pct[1].tok.n;
+
+ if(p[1].pct[1].tok.n > pcwb->nvars)
+ pcwb->nvars = p[1].pct[1].tok.n;
+
+ if(!pci)
+ fprintf(stderr,"couldn't find mnemonic\n");
+
+ return pci;
+
+}
+
+
+/*-----------------------------------------------------------------*/
+/* cvt_altpat_mem3 - convert assembly line type to a pCode */
+/* This rule is for bsf/bcf type instructions */
+/* */
+/* */
+/* pp[0] - mnem */
+/* pp[1] - register */
+/* pp[2] - comma */
+/* pp[3] - number */
+/* */
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_mnem3(void *pp,pCodeWildBlock *pcwb)
+{
+ parsedPattern *p = pp;
+ int opcode;
+ int dest; // or could be bit position in the register
+
+ pCodeInstruction *pci=NULL;
+ pCodeOp *pcosubtype=NULL;
+
+ dest = cvt_extract_destination(&p[3]);
+
+ DFPRINTF((stderr,"altpat_mnem3 %s var %s bit (%d)\n",
+ p->pct[0].tok.s,
+ p[1].pct[0].tok.s,
+ p[3].pct[0].tok.n));
+
+
+ opcode = pic16_getpCode(p->pct[0].tok.s,0);
+ if(opcode < 0) {
+ fprintf(stderr, "Bad mnemonic\n");
+ return NULL;
+ }
+
+
+ if(pic16Mnemonics[opcode]->isBitInst) {
+ //pcosubtype = cvt_extract_status(p[1].pct[0].tok.s, p[3].pct[0].tok.s);
+
+ //if(pcosubtype == NULL) {
+ pcosubtype = pic16_newpCodeOpBit(p[1].pct[0].tok.s,p[3].pct[0].tok.n,0);
+ //}
+ } else
+ pcosubtype = pic16_newpCodeOp(p[1].pct[0].tok.s,PO_GPR_REGISTER);
+
+ if(pcosubtype == NULL) {
+ fprintf(stderr, "Bad operand\n");
+ return NULL;
+ }
+
+ pci = PCI(pic16_newpCode(opcode, pcosubtype));
+
+ if(!pci)
+ fprintf(stderr,"couldn't find mnemonic\n");
+
+ return pci;
+
+}
+
+/*-----------------------------------------------------------------*/
+/* tokenizeLineNode - Convert a string (of char's) that was parsed */
+/* by SDCCpeeph.c into a string of tokens. */
+/* */
+/* */
+/* The tokenizer is of the classic type. When an item is encounterd*/
+/* it is converted into a token. The token is a structure that */
+/* encodes the item's type and it's value (when appropriate). */
+/* */
+/* Accepted token types: */
+/* SPACE NUMBER STRING % : , ; */
+/* */
+/* */
+/* */
+/*-----------------------------------------------------------------*/
+
+
+static void tokenizeLineNode(char *ln)
+{
+ char *lnstart=ln;
+ tokIdx = 0; // Starting off at the beginning
+ tokArr[0].tt = PCT_NULL; // and assume invalid character for first token.
+
+ if(!ln || !*ln)
+ return;
+
+
+ while(*ln) {
+
+ if(isspace(*ln)) {
+ // add a SPACE token and eat the extra spaces.
+ tokArr[tokIdx++].tt = PCT_SPACE;
+ while (isspace (*ln))
+ ln++;
+ continue;
+ }
+
+ if(isdigit(*ln)) {
+
+ tokArr[tokIdx].tt = PCT_NUMBER;
+ tokArr[tokIdx++].tok.n = strtol(ln, &ln, 0);
+
+ continue;
+
+ }
+
+ switch(*ln) {
+ case '%':
+ tokArr[tokIdx++].tt = PCT_PERCENT;
+ break;
+ case '<':
+ tokArr[tokIdx++].tt = PCT_LESSTHAN;
+ break;
+ case '>':
+ tokArr[tokIdx++].tt = PCT_GREATERTHAN;
+ break;
+ case ':':
+ tokArr[tokIdx++].tt = PCT_COLON;
+ break;
+ case ';':
+ tokArr[tokIdx].tok.s = Safe_strdup(ln);
+ tokArr[tokIdx++].tt = PCT_COMMENT;
+ tokArr[tokIdx].tt = PCT_NULL;
+ return;
+ case ',':
+ tokArr[tokIdx++].tt = PCT_COMMA;
+ break;
+
+
+ default:
+ if(isalpha(*ln) || (*ln == '_') ) {
+ char buffer[50];
+ int i=0;
+
+ while( (isalpha(*ln) || isdigit(*ln) || (*ln == '_')) && i<49)
+ buffer[i++] = *ln++;
+
+ ln--;
+ buffer[i] = 0;
+
+ tokArr[tokIdx].tok.s = Safe_strdup(buffer);
+ tokArr[tokIdx++].tt = PCT_STRING;
+
+ } else {
+ fprintf(stderr, "Error while parsing peep rules (check peeph.def)\n");
+ fprintf(stderr, "Line: %s\n",lnstart);
+ fprintf(stderr, "Token: '%c'\n",*ln);
+ exit(1);
+ }
+ }
+
+ /* Advance to next character in input string .
+ * Note, if none of the tests passed above, then
+ * we effectively ignore the `bad' character.
+ * Since the line has already been parsed by SDCCpeeph,
+ * chance are that there are no invalid characters... */
+
+ ln++;
+
+ }
+
+ tokArr[tokIdx].tt = 0;
+}
+
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+
+
+
+static void dump1Token(pCodeTokens tt)
+{
+
+ switch(tt) {
+ case PCT_SPACE:
+ fprintf(stderr, " space ");
+ break;
+ case PCT_PERCENT:
+ fprintf(stderr, " pct %%");
+ break;
+ case PCT_LESSTHAN:
+ fprintf(stderr, " pct <");
+ break;
+ case PCT_GREATERTHAN:
+ fprintf(stderr, " pct >");
+ break;
+ case PCT_COLON:
+ fprintf(stderr, " col :");
+ break;
+ case PCT_COMMA:
+ fprintf(stderr, " comma , ");
+ break;
+ case PCT_COMMENT:
+ fprintf(stderr, " comment ");
+ //fprintf(stderr,"%s",tokArr[i].tok.s);
+ break;
+ case PCT_STRING:
+ fprintf(stderr, " str ");
+ //fprintf(stderr,"%s",tokArr[i].tok.s);
+ break;
+ case PCT_NUMBER:
+ fprintf(stderr, " num ");
+ //fprintf(stderr,"%d",tokArr[i].tok.n);
+ break;
+ case PCT_NULL:
+ fprintf(stderr, " null ");
+
+ }
+
+}
+
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+
+static int pcComparePattern(pCodeToken *pct, char *pat, int max_tokens)
+{
+ int i=0;
+
+ if(!pct || !pat || !*pat)
+ return 0;
+
+ //DFPRINTF((stderr,"comparing against:\n"));
+
+ while(i < max_tokens) {
+
+ if(*pat == 0){
+ //DFPRINTF((stderr,"matched\n"));
+ return (i+1);
+ }
+
+ //dump1Token(*pat); DFPRINTF((stderr,"\n"));
+
+ if(pct->tt != *pat)
+ return 0;
+
+
+ pct++;
+ pat++;
+ }
+
+ return 0;
+
+}
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+
+static int altComparePattern( char *pct, parsedPattern *pat, int max_tokens)
+{
+ int i=0;
+
+ if(!pct || !pat || !*pct)
+ return 0;
+
+
+ while(i < max_tokens) {
+
+ if(*pct == 0) {
+ //DFPRINTF((stderr,"matched\n"));
+ return i;
+ }
+
+ //dump1Token(*pat); DFPRINTF((stderr,"\n"));
+
+ if( !pat || !pat->pcp )
+ return 0;
+
+ if (pat->pcp->pt != *pct)
+ return 0;
+
+ //DFPRINTF((stderr," pct=%d\n",*pct));
+ pct++;
+ pat++;
+ i++;
+ }
+
+ return 0;
+
+}
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+
+static int advTokIdx(int *v, int amt)
+{
+
+ if((unsigned) (*v + amt) > tokIdx)
+ return 1;
+
+ *v += amt;
+ return 0;
+
+}
+
+/*-----------------------------------------------------------------*/
+/* parseTokens - convert the tokens corresponding to a single line */
+/* of a peep hole assembly into a pCode object. */
+/* */
+/* */
+/* */
+/* */
+/* This is a simple parser that looks for strings of the type */
+/* allowed in the peep hole definition file. Essentially the format*/
+/* is the same as a line of assembly: */
+/* */
+/* label: mnemonic op1, op2, op3 ; comment */
+/* */
+/* Some of these items aren't present. It's the job of the parser */
+/* to determine which are and convert those into the appropriate */
+/* pcode. */
+/*-----------------------------------------------------------------*/
+
+static int parseTokens(pCodeWildBlock *pcwb, pCode **pcret)
+{
+ pCode *pc;
+ int error = 0;
+
+ if(!tokIdx)
+ return error;
+
+#ifdef PCODE_DEBUG
+ {
+ unsigned i;
+ for(i=0; i<=tokIdx; i++)
+ dump1Token(tokArr[i].tt);
+ fputc('\n',stderr);
+ }
+#endif
+
+ {
+ int lparsedPatIdx=0;
+ int lpcpIdx;
+ int ltokIdx =0;
+ int matching = 0;
+ int j=0;
+ int k=0;
+
+ char * cPmnem = NULL; // Pointer to non-wild mnemonic (if any)
+ char * cP1stop = NULL;
+ char * cP2ndop = NULL;
+
+ //pCodeOp *pcl = NULL; // Storage for a label
+ //pCodeOp *pco1 = NULL; // 1st operand
+ //pCodeOp *pco2 = NULL; // 2nd operand
+ //pCode *pc = NULL; // Mnemonic
+
+ typedef enum {
+ PS_START,
+ PS_HAVE_LABEL,
+ PS_HAVE_MNEM,
+ PS_HAVE_1OPERAND,
+ PS_HAVE_COMMA,
+ PS_HAVE_2OPERANDS
+ } ParseStates;
+
+ ParseStates state = PS_START;
+
+ do {
+
+ lpcpIdx=0;
+ matching = 0;
+
+ if( ((tokArr[ltokIdx].tt == PCT_SPACE) )
+ && (advTokIdx(<okIdx, 1)) ) // eat space
+ break;
+
+ do {
+ j = pcComparePattern(&tokArr[ltokIdx], pcpArr[lpcpIdx].tokens, tokIdx +1);
+ if( j ) {
+
+ switch(pcpArr[lpcpIdx].pt) {
+ case PCP_LABEL:
+ if(state == PS_START){
+ DFPRINTF((stderr," label\n"));
+ state = PS_HAVE_LABEL;
+ } else
+ DFPRINTF((stderr," bad state (%d) for label\n",state));
+ break;
+
+ case PCP_STR:
+ DFPRINTF((stderr," %s is",tokArr[ltokIdx].tok.s));
+ switch(state) {
+ case PS_START:
+ case PS_HAVE_LABEL:
+ DFPRINTF((stderr," mnem\n"));
+ cPmnem = tokArr[ltokIdx].tok.s;
+ state = PS_HAVE_MNEM;
+ break;
+ case PS_HAVE_MNEM:
+ DFPRINTF((stderr," 1st operand\n"));
+ cP1stop = tokArr[ltokIdx].tok.s;
+ //pco1 = pic16_newpCodeOp(NULL,PO_GPR_REGISTER);
+ state = PS_HAVE_1OPERAND;
+ break;
+ case PS_HAVE_1OPERAND:
+ DFPRINTF((stderr," error expecting comma\n"));
+ break;
+ case PS_HAVE_COMMA:
+ DFPRINTF((stderr," 2 operands\n"));
+ cP2ndop = tokArr[ltokIdx].tok.s;
+ break;
+ case PS_HAVE_2OPERANDS:
+ break;
+ }
+ break;
+
+ case PCP_WILDVAR:
+ switch(state) {
+ case PS_START:
+ case PS_HAVE_LABEL:
+ DFPRINTF((stderr," wild mnem\n"));
+ state = PS_HAVE_MNEM;
+ break;
+ case PS_HAVE_MNEM:
+ DFPRINTF((stderr," 1st operand is wild\n"));
+ state = PS_HAVE_1OPERAND;
+ break;
+ case PS_HAVE_1OPERAND:
+ DFPRINTF((stderr," error expecting comma\n"));
+ break;
+ case PS_HAVE_COMMA:
+ DFPRINTF((stderr," 2nd operand is wild\n"));
+ break;
+ case PS_HAVE_2OPERANDS:
+ break;
+ }
+ break;
+
+ case PCP_NUMBER:
+ switch(state) {
+ case PS_START:
+ case PS_HAVE_LABEL:
+ fprintf(stderr," ERROR number\n");
+ break;
+ case PS_HAVE_MNEM:
+ DFPRINTF((stderr," 1st operand is a number\n"));
+ state = PS_HAVE_1OPERAND;
+ break;
+ case PS_HAVE_1OPERAND:
+ fprintf(stderr," error expecting comma\n");
+ break;
+ case PS_HAVE_COMMA:
+ DFPRINTF((stderr," 2nd operand is a number\n"));
+ break;
+ case PS_HAVE_2OPERANDS:
+ break;
+ }
+ break;
+
+ case PCP_WILDSTR:
+ break;
+ case PCP_COMMA:
+ if(state == PS_HAVE_1OPERAND){
+ DFPRINTF((stderr," got a comma\n"));
+ state = PS_HAVE_COMMA;
+ } else
+ fprintf(stderr," unexpected comma\n");
+ break;
+
+ }
+
+ matching = 1;
+ parsedPatArr[lparsedPatIdx].pcp = &pcpArr[lpcpIdx];
+ parsedPatArr[lparsedPatIdx].pct = &tokArr[ltokIdx];
+ lparsedPatIdx++;
+
+ //dump1Token(tokArr[ltokIdx].tt);
+
+ if(advTokIdx(<okIdx, strlen(pcpArr[lpcpIdx].tokens) ) ) {
+ DFPRINTF((stderr," reached end \n"));
+ matching = 0;
+ //return;
+ }
+ }
+
+
+ } while ((++lpcpIdx < PCPATTERNS) && !matching);
+
+ } while (matching);
+
+ parsedPatArr[lparsedPatIdx].pcp = NULL;
+ parsedPatArr[lparsedPatIdx].pct = NULL;
+
+ j=k=0;
+ do {
+ int c;
+
+ if( (c=altComparePattern( altArr[k].tokens, &parsedPatArr[j],10) ) ) {
+
+ if( altArr[k].f) {
+ pc = altArr[k].f(&parsedPatArr[j],pcwb);
+ //if(pc && pc->print)
+ // pc->print(stderr,pc);
+ //if(pc && pc->destruct) pc->destruct(pc); dumps core?
+
+ //if(curBlock && pc)
+ //pic16_addpCode2pBlock(curBlock, pc);
+ if(pc) {
+ if (pcret) {
+ *pcret = pc;
+ return 0; // Only accept one line for now.
+ } else
+ pic16_addpCode2pBlock(pcwb->pb, pc);
+ } else
+ error++;
+ }
+ j += c;
+ }
+ k++;
+ }
+ while(j<=lparsedPatIdx && k<ALTPATTERNS);
+
+/*
+ DFPRINTF((stderr,"\nConverting parsed line to pCode:\n\n"));
+
+ j = 0;
+ do {
+ if(parsedPatArr[j].pcp && parsedPatArr[j].pcp->f )
+ parsedPatArr[j].pcp->f(&parsedPatArr[j]);
+ DFPRINTF((stderr," %d",parsedPatArr[j].pcp->pt));
+ j++;
+ }
+ while(j<lparsedPatIdx);
+*/
+ DFPRINTF((stderr,"\n"));
+
+ }
+
+ return error;
+}
+
+/*-----------------------------------------------------------------*/
+/* */
+/*-----------------------------------------------------------------*/
+static void peepRuleBlock2pCodeBlock( lineNode *ln, pCodeWildBlock *pcwb)
+{
+
+ if(!ln)
+ return;
+
+ for( ; ln; ln = ln->next) {
+
+ //DFPRINTF((stderr,"%s\n",ln->line));
+
+ tokenizeLineNode(ln->line);
+
+ if(parseTokens(pcwb,NULL)) {
+ int i;
+ fprintf(stderr,"ERROR assembling line:\n%s\n",ln->line);
+ fprintf(stderr,"Tokens:\n");
+ for(i=0; i<5; i++)
+ dump1Token(tokArr[i].tt);
+ fputc('\n',stderr);
+ exit (1);
+ }
+ }
+}
+
+/*-----------------------------------------------------------------*/
+/* */
+/*-----------------------------------------------------------------*/
+pCode *pic16_AssembleLine(char *line)
+{
+ pCode *pc=NULL;
+
+ if(!line || !*line) {
+ fprintf(stderr,"WARNING returning NULL in AssembleLine\n");
+ return NULL;
+ }
+
+ tokenizeLineNode(line);
+
+ if(parseTokens(NULL,&pc))
+ fprintf(stderr, "WARNING: unable to assemble line:\n%s\n",line);
+
+ return pc;
+
+}
+
+/*-----------------------------------------------------------------*/
+/* peepRuleCondition */
+/*-----------------------------------------------------------------*/
+static void peepRuleCondition(char *cond, pCodePeep *pcp)
+{
+ if(!cond || !pcp)
+ return;
+
+ //DFPRINTF((stderr,"\nCondition: %s\n",cond));
+ /* brute force compares for now */
+
+ if(STRCASECMP(cond, "NZ") == 0) {
+ //DFPRINTF((stderr,"found NZ\n"));
+ pcp->postFalseCond = PCC_Z;
+
+ }
+
+}
+
+
+static void initpCodeWildBlock(pCodeWildBlock *pcwb)
+{
+
+ // pcwb = Safe_calloc(1,sizeof(pCodeWildBlock));
+
+ if(!pcwb)
+ return;
+
+ pcwb->vars = NULL;
+ pcwb->wildpCodes = NULL;
+ pcwb->wildpCodeOps = NULL;
+
+ pcwb->nvars = 0;
+ pcwb->nwildpCodes = 0;
+ pcwb->nops = 0;
+
+}
+
+static void postinit_pCodeWildBlock(pCodeWildBlock *pcwb)
+{
+
+ if(!pcwb)
+ return;
+
+ pcwb->nvars+=2;
+ pcwb->nops = pcwb->nvars;
+
+ pcwb->vars = Safe_calloc(pcwb->nvars, sizeof(char *));
+ pcwb->wildpCodeOps = Safe_calloc(pcwb->nvars, sizeof(pCodeOp *));
+
+ pcwb->nwildpCodes+=2;
+ pcwb->wildpCodes = Safe_calloc(pcwb->nwildpCodes, sizeof(pCode *));
+
+}
+
+static void initpCodePeep(pCodePeep *pcp)
+{
+
+ // pcwb = Safe_calloc(1,sizeof(pCodeWildBlock));
+
+ if(!pcp)
+ return;
+
+ initpCodeWildBlock(&pcp->target);
+ pcp->target.pb = pic16_newpCodeChain(NULL, 'W', NULL);
+
+ initpCodeWildBlock(&pcp->replace);
+ pcp->replace.pb = pic16_newpCodeChain(NULL, 'W', NULL);
+
+}
+
+/*-----------------------------------------------------------------*/
+/* peepRules2pCode - parse the "parsed" peep hole rules to generate*/
+/* pCode. */
+/* */
+/* SDCCpeeph parses the peep rules file and extracts variables, */
+/* removes white space, and checks the syntax. This function */
+/* extends that processing to produce pCode objects. You can kind */
+/* think of this function as an "assembler", though instead of */
+/* taking raw text to produce machine code, it produces pCode. */
+/* */
+/*-----------------------------------------------------------------*/
+extern void pic16initpCodePeepCommands(void);
+
+void pic16_peepRules2pCode(peepRule *rules)
+{
+ peepRule *pr;
+
+ pCodePeep *currentRule;
+ pCodePeepSnippets *pcps;
+
+ pic16initpCodePeepCommands();
+
+ /* The rules are in a linked-list. Each rule has two portions */
+ /* There's the `target' and there's the `replace'. The target */
+ /* is compared against the SDCC generated code and if it */
+ /* matches, it gets replaced by the `replace' block of code. */
+ /* */
+ /* Here we loop through each rule and convert the target's and*/
+ /* replace's into pCode target and replace blocks */
+
+ for (pr = rules; pr; pr = pr->next) {
+
+ //DFPRINTF((stderr,"\nRule:\n\n"));
+
+ pcps = Safe_calloc(1,sizeof(pCodePeepSnippets));
+ peepSnippets = DLL_append((_DLL*)peepSnippets,(_DLL*)pcps);
+
+ currentRule = pcps->peep = Safe_calloc(1,sizeof(pCodePeep));
+ initpCodePeep(currentRule);
+
+ /* Convert the target block */
+ peepRuleBlock2pCodeBlock(pr->match, ¤tRule->target);
+
+ //DFPRINTF((stderr,"finished target, here it is in pcode form:\n"));
+ //pic16_printpBlock(stderr, currentRule->target.pb);
+
+ //DFPRINTF((stderr,"target with labels merged:\n"));
+ //pic16_pBlockMergeLabels(curBlock);
+ pic16_pBlockMergeLabels(currentRule->target.pb);
+ //pic16_printpBlock(stderr, currentRule->replace.pb);
+
+ //#ifdef PCODE_DEBUG
+ // pic16_printpBlock(stderr, curBlock);
+ //#endif
+ //DFPRINTF((stderr,"\nReplaced by:\n"));
+
+
+ /* Convert the replace block */
+ peepRuleBlock2pCodeBlock(pr->replace, ¤tRule->replace);
+
+ //DFPRINTF((stderr,"finished replace block, here it is in pcode form:\n"));
+ //pic16_printpBlock(stderr, curBlock);
+
+ //DFPRINTF((stderr,"replace with labels merged:\n"));
+
+ pic16_pBlockMergeLabels(currentRule->replace.pb);
+ //pic16_printpBlock(stderr, currentRule->replace.pb);
+
+ peepRuleCondition(pr->cond,currentRule);
+
+ /* The rule has been converted to pCode. Now allocate
+ * space for the wildcards */
+
+ postinit_pCodeWildBlock(¤tRule->target);
+ postinit_pCodeWildBlock(¤tRule->replace);
+
+ //return; // debug ... don't want to go through all the rules yet
+ }
+
+ {
+ pCodePeep *peepBlock;
+ _DLL *peeprules;
+
+ peeprules = (_DLL *)peepSnippets;
+ //fprintf(stderr,"target rules\n");
+ while(peeprules) {
+ //fprintf(stderr," rule:\n");
+ peepBlock = ((pCodePeepSnippets*)peeprules)->peep;
+ //pic16_printpBlock(stderr, peepBlock->target.pb);
+ peeprules = peeprules->next;
+ }
+ //fprintf(stderr," ... done\n");
+ }
+
+}
+
+static void printpCodeString(FILE *of, pCode *pc, int max)
+{
+ int i=0;
+
+ while(pc && (i++<max)) {
+ pc->print(of,pc);
+ pc = pc->next;
+ }
+}
+
+/*-----------------------------------------------------------------*/
+/* _DLL * DLL_append */
+/* */
+/* Append a _DLL object to the end of a _DLL (doubly linked list) */
+/* If The list to which we want to append is non-existant then one */
+/* is created. Other wise, the end of the list is sought out and */
+/* a new DLL object is appended to it. In either case, the void */
+/* *data is added to the newly created DLL object. */
+/*-----------------------------------------------------------------*/
+
+static void * DLL_append(_DLL *list, _DLL *next)
+{
+ _DLL *b;
+
+
+ /* If there's no list, then create one: */
+ if(!list) {
+ next->next = next->prev = NULL;
+ return next;
+ }
+
+
+ /* Search for the end of the list. */
+ b = list;
+ while(b->next)
+ b = b->next;
+
+ /* Now append the new DLL object */
+ b->next = next;
+ b->next->prev = b;
+ b = b->next;
+ b->next = NULL;
+
+ return list;
+
+}
+
+
+/*-----------------------------------------------------------------
+
+ pCode peephole optimization
+
+
+ The pCode "peep hole" optimization is not too unlike the peep hole
+ optimization in SDCCpeeph.c. The major difference is that here we
+ use pCode's whereas there we use ASCII strings. The advantage with
+ pCode's is that we can ascertain flow information in the instructions
+ being optimized.
+
+
+<FIX ME> - elaborate...
+
+ -----------------------------------------------------------------*/
+
+
+
+/*-----------------------------------------------------------------*/
+/* pCodeSearchCondition - Search a pCode chain for a 'condition' */
+/* */
+/* return conditions */
+/* 1 - The Condition was found for a pCode's input */
+/* 0 - No matching condition was found for the whole chain */
+/* -1 - The Condition was found for a pCode's output */
+/* */
+/*-----------------------------------------------------------------*/
+int pic16_pCodeSearchCondition(pCode *pc, unsigned int cond)
+{
+ //fprintf(stderr,"Checking conditions %d\n",cond);
+ while(pc) {
+
+ /* If we reach a function end (presumably an end since we most
+ probably began the search in the middle of a function), then
+ the condition was not found. */
+ if(pc->type == PC_FUNCTION)
+ return 0;
+
+ if(pc->type == PC_OPCODE) {
+ //fprintf(stderr," checking conditions of: ");
+ //pc->print(stderr,pc);
+ //fprintf(stderr,"\t\tinCond=%d\toutCond=%d\n",PCI(pc)->inCond,PCI(pc)->outCond);
+ if(PCI(pc)->inCond & cond)
+ return 1;
+ if(PCI(pc)->outCond & cond)
+ return -1;
+ }
+
+ pc = pc->next;
+ }
+
+ return 0;
+}
+
+/*-----------------------------------------------------------------
+ * int pCodeOpCompare(pCodeOp *pcops, pCodeOp *pcopd)
+ *
+ * Compare two pCodeOp's and return 1 if they're the same
+ *-----------------------------------------------------------------*/
+static int pCodeOpCompare(pCodeOp *pcops, pCodeOp *pcopd)
+{
+ char b[50], *n2;
+
+ if(!pcops || !pcopd)
+ return 0;
+/*
+ fprintf(stderr," Comparing operands %s",
+ pic16_get_op( pcops,NULL,0));
+
+ fprintf(stderr," to %s\n",
+ pic16_get_op( pcopd,NULL,0));
+*/
+
+ if(pcops->type != pcopd->type) {
+ //fprintf(stderr," - fail - diff types\n");
+ return 0; // different types
+ }
+
+ if(pcops->type == PO_LITERAL) {
+
+ if((PCOL(pcops)->lit >= 0) && (PCOL(pcops)->lit == PCOL(pcopd)->lit))
+ return 1;
+
+ return 0;
+ }
+
+ b[0]=0;
+ pic16_get_op(pcops,b,50);
+
+ n2 = pic16_get_op(pcopd,NULL,0);
+
+ if( !n2 || strcmp(b,n2)) {
+ //fprintf(stderr," - fail - diff names: %s, len=%d, %s, len=%d\n",b,strlen(b), n2, strlen(n2) );
+ return 0; // different names
+ }
+
+ switch(pcops->type) {
+ case PO_DIR:
+ if( PCOR(pcops)->instance != PCOR(pcopd)->instance) {
+ //fprintf(stderr, " - fail different instances\n");
+ return 0;
+ }
+ break;
+ default:
+ break;
+ }
+
+ //fprintf(stderr," - pass\n");
+
+ return 1;
+}
+
+static int pCodePeepMatchLabels(pCodePeep *peepBlock, pCode *pcs, pCode *pcd)
+{
+ int labindex;
+
+ /* Check for a label associated with this wild pCode */
+ // If the wild card has a label, make sure the source code does too.
+ if(PCI(pcd)->label) {
+ pCode *pcl = PCI(pcd)->label->pc;
+
+#ifdef PCODE_DEBUG
+ int li = -PCL(pcl)->key;
+
+ if(peepBlock->target.vars[li] == NULL) {
+ if(PCI(pcs)->label) {
+ DFPRINTF((stderr,"first time for a label: %d %s\n",li,PCL(PCI(pcs)->label->pc)->label));
+ }
+ } else {
+ // DFPRINTF((stderr,"label id = %d \n",PCL(PCI(pcd)->label->pc)->key));
+ DFPRINTF((stderr," label id: %d %s\n",li,peepBlock->target.vars[li]));
+ if(PCI(pcs)->label) {
+ DFPRINTF((stderr," src %s\n",PCL(PCI(pcs)->label->pc)->label));
+ }
+ }
+#endif
+
+
+ if(!PCI(pcs)->label)
+ return 0;
+
+ labindex = -PCL(pcl)->key;
+ if(peepBlock->target.vars[labindex] == NULL) {
+ // First time to encounter this label
+ peepBlock->target.vars[labindex] = PCL(PCI(pcs)->label->pc)->label;
+ DFPRINTF((stderr,"first time for a label: %d %s\n",labindex,PCL(PCI(pcs)->label->pc)->label));
+
+ } else {
+ if(strcmp(peepBlock->target.vars[labindex],PCL(PCI(pcs)->label->pc)->label) != 0) {
+ DFPRINTF((stderr,"labels don't match dest %s != src %s\n",peepBlock->target.vars[labindex],PCL(PCI(pcs)->label->pc)->label));
+ return 0;
+ }
+ DFPRINTF((stderr,"matched a label %d %s -hey\n",labindex,peepBlock->target.vars[labindex]));
+ }
+ } else {
+ //DFPRINTF((stderr,"destination doesn't have a label\n"));
+
+ if(PCI(pcs)->label)
+ return 0;
+
+ //DFPRINTF((stderr,"neither src nor dest have labels\n"));
+
+ }
+
+ return 1;
+
+}
+
+/*-----------------------------------------------------------------*/
+/* pCodePeepMatchLine - Compare source and destination pCodes to */
+/* see they're the same. */
+/* */
+/* In this context, "source" refers to the coded generated by gen.c*/
+/* and "destination" refers to a pcode in a peep rule. If the dest-*/
+/* ination has no wild cards, then MatchLine will compare the two */
+/* pcodes (src and dest) for a one-to-one match. If the destination*/
+/* has wildcards, then those get expanded. When a wild card is */
+/* encountered for the first time it autmatically is considered a */
+/* match and the object that matches it is referenced in the */
+/* variables or opcodes array (depending on the type of match). */
+/* */
+/* */
+/* Inputs: */
+/* *peepBlock - A pointer to the peepBlock that contains the */
+/* entire rule to which the destination pcode belongs*/
+/* *pcs - a pointer to the source pcode */
+/* *pcd - a pointer to the destination pcode */
+/* */
+/* Returns: */
+/* 1 - pcodes match */
+/* 0 - pcodes don't match */
+/* */
+/* */
+/*-----------------------------------------------------------------*/
+
+static int pCodePeepMatchLine(pCodePeep *peepBlock, pCode *pcs, pCode *pcd)
+{
+ int index; // index into wild card arrays
+
+ /* one-for-one match. Here the source and destination opcodes
+ * are not wild. However, there may be a label or a wild operand */
+
+ if(pcs) {
+ if(PCI(pcs)->label) {
+ DFPRINTF((stderr,"Match line source label: %s\n",PCL(PCI(pcs)->label->pc)->label));
+ }
+ }
+
+ if(pcs->type == pcd->type) {
+
+ if(pcs->type == PC_OPCODE) {
+
+ /* If the opcodes don't match then the line doesn't match */
+ if(PCI(pcs)->op != PCI(pcd)->op)
+ return 0;
+
+#ifdef PCODE_DEBUG
+ DFPRINTF((stderr,"%s comparing\n",__FUNCTION__));
+ pcs->print(stderr,pcs);
+ pcd->print(stderr,pcd);
+#endif
+
+ if(!pCodePeepMatchLabels(peepBlock, pcs, pcd))
+ return 0;
+
+ /* Compare the operands */
+ if(PCI(pcd)->pcop) {
+ if (PCI(pcd)->pcop->type == PO_WILD) {
+ index = PCOW(PCI(pcd)->pcop)->id;
+ //DFPRINTF((stderr,"destination is wild\n"));
+#ifdef DEBUG_PCODEPEEP
+ if (index > peepBlock->nops) {
+ DFPRINTF((stderr,"%s - variables exceeded\n",__FUNCTION__));
+ exit(1);
+ }
+#endif
+
+ PCOW(PCI(pcd)->pcop)->matched = PCI(pcs)->pcop;
+ if(!peepBlock->target.wildpCodeOps[index]) {
+ peepBlock->target.wildpCodeOps[index] = PCI(pcs)->pcop;
+
+ //if(PCI(pcs)->pcop->type == PO_GPR_TEMP)
+
+ } else {
+ /*
+ pcs->print(stderr,pcs);
+ pcd->print(stderr,pcd);
+
+ fprintf(stderr, "comparing operands of these instructions, result %d\n",
+ pCodeOpCompare(PCI(pcs)->pcop, peepBlock->target.wildpCodeOps[index])
+ );
+ */
+
+ return pCodeOpCompare(PCI(pcs)->pcop, peepBlock->target.wildpCodeOps[index]);
+ }
+
+ {
+ char *n;
+
+ switch(PCI(pcs)->pcop->type) {
+ case PO_GPR_TEMP:
+ case PO_FSR0:
+ //case PO_INDF0:
+ n = PCOR(PCI(pcs)->pcop)->r->name;
+
+ break;
+ default:
+ n = PCI(pcs)->pcop->name;
+ }
+
+ if(peepBlock->target.vars[index])
+ return (strcmp(peepBlock->target.vars[index],n) == 0);
+ else {
+ DFPRINTF((stderr,"first time for a variable: %d, %s\n",index,n));
+ peepBlock->target.vars[index] = n;
+ return 1;
+ }
+ }
+
+ } else if (PCI(pcd)->pcop->type == PO_LITERAL) {
+ return pCodeOpCompare(PCI(pcs)->pcop, PCI(pcd)->pcop);
+
+ }
+ /* FIXME - need an else to check the case when the destination
+ * isn't a wild card */
+ } else
+ /* The pcd has no operand. Lines match if pcs has no operand either*/
+ return (PCI(pcs)->pcop == NULL);
+ }
+ }
+
+ /* Compare a wild instruction to a regular one. */
+
+ if((pcd->type == PC_WILD) && (pcs->type == PC_OPCODE)) {
+
+ index = PCW(pcd)->id;
+#ifdef PCODE_DEBUG
+ DFPRINTF((stderr,"%s comparing wild cards\n",__FUNCTION__));
+ pcs->print(stderr,pcs);
+ pcd->print(stderr,pcd);
+#endif
+ peepBlock->target.wildpCodes[PCW(pcd)->id] = pcs;
+
+ if(!pCodePeepMatchLabels(peepBlock, pcs, pcd)) {
+ DFPRINTF((stderr," Failing because labels don't match\n"));
+ return 0;
+ }
+
+ if(PCW(pcd)->mustBeBitSkipInst & !(PCI(pcs)->isBitInst && PCI(pcs)->isSkip)) {
+ // doesn't match because the wild pcode must be a bit skip
+ DFPRINTF((stderr," Failing match because bit skip is req\n"));
+ //pcd->print(stderr,pcd);
+ //pcs->print(stderr,pcs);
+ return 0;
+ }
+
+ if(PCW(pcd)->mustNotBeBitSkipInst & (PCI(pcs)->isBitInst && PCI(pcs)->isSkip)) {
+ // doesn't match because the wild pcode must *not* be a bit skip
+ DFPRINTF((stderr," Failing match because shouldn't be bit skip\n"));
+ //pcd->print(stderr,pcd);
+ //pcs->print(stderr,pcs);
+ return 0;
+ }
+
+ if(PCW(pcd)->operand) {
+ PCOW(PCI(pcd)->pcop)->matched = PCI(pcs)->pcop;
+ if(peepBlock->target.vars[index]) {
+ int i = (strcmp(peepBlock->target.vars[index],PCI(pcs)->pcop->name) == 0);
+#ifdef PCODE_DEBUG
+
+ if(i)
+ DFPRINTF((stderr," (matched)\n"));
+ else {
+ DFPRINTF((stderr," (no match: wild card operand mismatch\n"));
+ DFPRINTF((stderr," peepblock= %s, pcodeop= %s\n",
+ peepBlock->target.vars[index],
+ PCI(pcs)->pcop->name));
+ }
+#endif
+ return i;
+ } else {
+ DFPRINTF((stderr," (matched %s\n",PCI(pcs)->pcop->name));
+ peepBlock->target.vars[index] = PCI(pcs)->pcop->name;
+ return 1;
+ }
+ }
+
+ pcs = pic16_findNextInstruction(pcs->next);
+ if(pcs) {
+ //DFPRINTF((stderr," (next to match)\n"));
+ //pcs->print(stderr,pcs);
+ } else if(pcd->next) {
+ /* oops, we ran out of code, but there's more to the rule */
+ return 0;
+ }
+
+ return 1; /* wild card matches */
+ }
+
+ return 0;
+}
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+static void pCodePeepClrVars(pCodePeep *pcp)
+{
+
+ int i;
+ if(!pcp)
+ return;
+/*
+ DFPRINTF((stderr," Clearing peep rule vars\n"));
+ DFPRINTF((stderr," %d %d %d %d %d %d\n",
+ pcp->target.nvars,pcp->target.nops,pcp->target.nwildpCodes,
+ pcp->replace.nvars,pcp->replace.nops,pcp->replace.nwildpCodes));
+*/
+ for(i=0;i<pcp->target.nvars; i++)
+ pcp->target.vars[i] = NULL;
+ for(i=0;i<pcp->target.nops; i++)
+ pcp->target.wildpCodeOps[i] = NULL;
+ for(i=0;i<pcp->target.nwildpCodes; i++)
+ pcp->target.wildpCodes[i] = NULL;
+
+ for(i=0;i<pcp->replace.nvars; i++)
+ pcp->replace.vars[i] = NULL;
+ for(i=0;i<pcp->replace.nops; i++)
+ pcp->replace.wildpCodeOps[i] = NULL;
+ for(i=0;i<pcp->replace.nwildpCodes; i++)
+ pcp->replace.wildpCodes[i] = NULL;
+
+
+
+}
+
+/*-----------------------------------------------------------------*/
+/* pCodeInsertAfter - splice in the pCode chain starting with pc2 */
+/* into the pCode chain containing pc1 */
+/*-----------------------------------------------------------------*/
+void pic16_pCodeInsertAfter(pCode *pc1, pCode *pc2)
+{
+
+ if(!pc1 || !pc2)
+ return;
+
+ pc2->next = pc1->next;
+ if(pc1->next)
+ pc1->next->prev = pc2;
+
+ pc2->pb = pc1->pb;
+ pc2->prev = pc1;
+ pc1->next = pc2;
+
+}
+
+/*-----------------------------------------------------------------*/
+/* pic16_pCodeOpCopy - copy a pcode operator */
+/*-----------------------------------------------------------------*/
+pCodeOp *pic16_pCodeOpCopy(pCodeOp *pcop)
+{
+ pCodeOp *pcopnew=NULL;
+
+ if(!pcop)
+ return NULL;
+
+ switch(pcop->type) {
+ case PO_CRY:
+ case PO_BIT:
+ //DFPRINTF((stderr,"pCodeOpCopy bit\n"));
+ pcopnew = Safe_calloc(1,sizeof(pCodeOpRegBit) );
+ PCORB(pcopnew)->bit = PCORB(pcop)->bit;
+ PCORB(pcopnew)->inBitSpace = PCORB(pcop)->inBitSpace;
+
+ break;
+
+ case PO_WILD:
+ /* Here we expand the wild card into the appropriate type: */
+ /* By recursively calling pCodeOpCopy */
+ //DFPRINTF((stderr,"pCodeOpCopy wild\n"));
+ if(PCOW(pcop)->matched)
+ pcopnew = pic16_pCodeOpCopy(PCOW(pcop)->matched);
+ else {
+ // Probably a label
+ pcopnew = pic16_pCodeOpCopy(PCOW(pcop)->subtype);
+ pcopnew->name = Safe_strdup(PCOW(pcop)->pcwb->vars[PCOW(pcop)->id]);
+ //DFPRINTF((stderr,"copied a wild op named %s\n",pcopnew->name));
+ }
+
+ return pcopnew;
+ break;
+
+ case PO_LABEL:
+ //DFPRINTF((stderr,"pCodeOpCopy label\n"));
+ pcopnew = Safe_calloc(1,sizeof(pCodeOpLabel) );
+ PCOLAB(pcopnew)->key = PCOLAB(pcop)->key;
+ break;
+
+ case PO_IMMEDIATE:
+ pcopnew = Safe_calloc(1,sizeof(pCodeOpImmd) );
+ PCOI(pcopnew)->index = PCOI(pcop)->index;
+ PCOI(pcopnew)->offset = PCOI(pcop)->offset;
+ PCOI(pcopnew)->_const = PCOI(pcop)->_const;
+ break;
+
+ case PO_LITERAL:
+ //DFPRINTF((stderr,"pCodeOpCopy lit\n"));
+ pcopnew = Safe_calloc(1,sizeof(pCodeOpLit) );
+ PCOL(pcopnew)->lit = PCOL(pcop)->lit;
+ break;
+
+#if 0 // mdubuc - To add
+ case PO_REL_ADDR:
+ break;
+#endif
+
+ case PO_GPR_BIT:
+
+ pcopnew = pic16_newpCodeOpBit(pcop->name, PCORB(pcop)->bit,PCORB(pcop)->inBitSpace);
+ PCOR(pcopnew)->r = PCOR(pcop)->r;
+ PCOR(pcopnew)->rIdx = PCOR(pcop)->rIdx;
+ DFPRINTF((stderr," pCodeOpCopy Bit -register index\n"));
+ return pcopnew;
+ break;
+
+ case PO_GPR_REGISTER:
+ case PO_GPR_TEMP:
+ case PO_FSR0:
+ case PO_INDF0:
+ //DFPRINTF((stderr,"pCodeOpCopy GPR register\n"));
+ pcopnew = Safe_calloc(1,sizeof(pCodeOpReg) );
+ PCOR(pcopnew)->r = PCOR(pcop)->r;
+ PCOR(pcopnew)->rIdx = PCOR(pcop)->rIdx;
+ PCOR(pcopnew)->instance = PCOR(pcop)->instance;
+ DFPRINTF((stderr," register index %d\n", PCOR(pcop)->r->rIdx));
+ break;
+
+ case PO_DIR:
+ //fprintf(stderr,"pCodeOpCopy PO_DIR\n");
+ pcopnew = Safe_calloc(1,sizeof(pCodeOpReg) );
+ PCOR(pcopnew)->r = PCOR(pcop)->r;
+ PCOR(pcopnew)->rIdx = PCOR(pcop)->rIdx;
+ PCOR(pcopnew)->instance = PCOR(pcop)->instance;
+ break;
+ case PO_STATUS:
+ DFPRINTF((stderr,"pCodeOpCopy PO_STATUS\n"));
+ case PO_BSR:
+ DFPRINTF((stderr,"pCodeOpCopy PO_BSR\n"));
+ case PO_SFR_REGISTER:
+ case PO_STR:
+ case PO_NONE:
+ case PO_W:
+ case PO_WREG:
+ case PO_INTCON:
+ case PO_PCL:
+ case PO_PCLATH:
+
+ //DFPRINTF((stderr,"pCodeOpCopy register type %d\n", pcop->type));
+ pcopnew = Safe_calloc(1,sizeof(pCodeOp) );
+
+ }
+
+ pcopnew->type = pcop->type;
+ if(pcop->name)
+ pcopnew->name = Safe_strdup(pcop->name);
+ else
+ pcopnew->name = NULL;
+
+ return pcopnew;
+}
+
+
+/*-----------------------------------------------------------------*/
+/* pCodeCopy - copy a pcode */
+/*-----------------------------------------------------------------*/
+static pCode *pCodeInstructionCopy(pCodeInstruction *pci,int invert)
+{
+ pCodeInstruction *new_pci;
+
+ if(invert)
+ new_pci = PCI(pic16_newpCode(pci->inverted_op,pci->pcop));
+ else
+ new_pci = PCI(pic16_newpCode(pci->op,pci->pcop));
+
+ new_pci->pc.pb = pci->pc.pb;
+ new_pci->from = pci->from;
+ new_pci->to = pci->to;
+ new_pci->label = pci->label;
+ new_pci->pcflow = pci->pcflow;
+
+ return PCODE(new_pci);
+}
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+static void pCodeDeleteChain(pCode *f,pCode *t)
+{
+ pCode *pc;
+
+
+ while(f && f!=t) {
+ DFPRINTF((stderr,"delete pCode:\n"));
+ pc = f->next;
+ //f->print(stderr,f);
+ //f->delete(f); this dumps core...
+
+ f = pc;
+
+ }
+
+}
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+int pic16_pCodePeepMatchRule(pCode *pc)
+{
+ pCodePeep *peepBlock;
+ pCode *pct, *pcin;
+ pCodeCSource *pc_cline=NULL;
+ _DLL *peeprules;
+ int matched;
+
+ peeprules = (_DLL *)peepSnippets;
+
+ while(peeprules) {
+ peepBlock = ((pCodePeepSnippets*)peeprules)->peep;
+
+ if(!peepBlock || /*!peepBlock->target ||*/ !peepBlock->target.pb->pcHead) {
+ fprintf(stderr, "skipping rule because target pb is NULL\n");
+ goto next_rule;
+ }
+
+ pCodePeepClrVars(peepBlock);
+/*
+ pcin = pc;
+ if(IS_PCCOMMENT(pcin))
+ pc = pcin = pic16_findNextInstruction(pcin->next);
+*/
+ pcin = pc = pic16_findNextInstruction(pc);
+
+ pct = peepBlock->target.pb->pcHead;
+#ifdef PCODE_DEBUG
+ {
+ pCode *pcr = peepBlock->replace.pb->pcHead;
+ if(pcr) pct->print(stderr,pcr);
+ }
+#endif
+ matched = 0;
+ while(pct && pcin) {
+
+ if(! (matched = pCodePeepMatchLine(peepBlock, pcin,pct)))
+ break;
+
+ pcin = pic16_findNextInstruction(pcin->next);
+ pct = pct->next;
+ //debug:
+ //DFPRINTF((stderr," matched\n"));
+
+ if(!pcin && pct) {
+ DFPRINTF((stderr," partial match... no more code\n"));
+ fprintf(stderr," partial match... no more code\n");
+ matched = 0;
+ }
+ if(!pct) {
+ DFPRINTF((stderr," end of rule\n"));
+ }
+ }
+
+ if(matched && pcin) {
+
+ /* So far we matched the rule up to the point of the conditions .
+ * In other words, all of the opcodes match. Now we need to see
+ * if the post conditions are satisfied.
+ * First we check the 'postFalseCond'. This means that we check
+ * to see if any of the subsequent pCode's in the pCode chain
+ * following the point just past where we have matched depend on
+ * the `postFalseCond' as input then we abort the match
+ */
+ DFPRINTF((stderr," matched rule so far, now checking conditions\n"));
+ //pcin->print(stderr,pcin);
+
+ if (pcin && peepBlock->postFalseCond &&
+ (pic16_pCodeSearchCondition(pcin,peepBlock->postFalseCond) > 0) )
+ matched = 0;
+
+ //fprintf(stderr," condition results = %d\n",pic16_pCodeSearchCondition(pcin,peepBlock->postFalseCond));
+
+
+ //if(!matched) fprintf(stderr,"failed on conditions\n");
+ }
+
+ if(matched) {
+
+ pCode *pcprev;
+ pCode *pcr;
+
+
+ /* We matched a rule! Now we have to go through and remove the
+ inefficient code with the optimized version */
+#ifdef PCODE_DEBUG
+ DFPRINTF((stderr, "Found a pcode peep match:\nRule:\n"));
+ printpCodeString(stderr,peepBlock->target.pb->pcHead,10);
+ DFPRINTF((stderr,"first thing matched\n"));
+ pc->print(stderr,pc);
+ if(pcin) {
+ DFPRINTF((stderr,"last thing matched\n"));
+ pcin->print(stderr,pcin);
+ }
+#endif
+
+
+ /* Unlink the original code */
+ pcprev = pc->prev;
+ pcprev->next = pcin;
+ if(pcin)
+ pcin->prev = pc->prev;
+
+
+#if 0
+ {
+ /* DEBUG */
+ /* Converted the deleted pCodes into comments */
+
+ char buf[256];
+ pCodeCSource *pc_cline2=NULL;
+
+ buf[0] = ';';
+ buf[1] = '#';
+
+ while(pc && pc!=pcin) {
+
+ if(pc->type == PC_OPCODE && PCI(pc)->cline) {
+ if(pc_cline) {
+ pc_cline2->pc.next = PCODE(PCI(pc)->cline);
+ pc_cline2 = PCCS(pc_cline2->pc.next);
+ } else {
+ pc_cline = pc_cline2 = PCI(pc)->cline;
+ pc_cline->pc.seq = pc->seq;
+ }
+ }
+
+ pCode2str(&buf[2], 254, pc);
+ pic16_pCodeInsertAfter(pcprev, pic16_newpCodeCharP(buf));
+ pcprev = pcprev->next;
+ pc = pc->next;
+
+ }
+ if(pc_cline2)
+ pc_cline2->pc.next = NULL;
+ }
+#endif
+
+ if(pcin)
+ pCodeDeleteChain(pc,pcin);
+
+ /* Generate the replacement code */
+ pc = pcprev;
+ pcr = peepBlock->replace.pb->pcHead; // This is the replacement code
+ while (pcr) {
+ pCodeOp *pcop=NULL;
+
+ /* If the replace pcode is an instruction with an operand, */
+ /* then duplicate the operand (and expand wild cards in the process). */
+ if(pcr->type == PC_OPCODE) {
+ if(PCI(pcr)->pcop) {
+ /* The replacing instruction has an operand.
+ * Is it wild? */
+ if(PCI(pcr)->pcop->type == PO_WILD) {
+ int index = PCOW(PCI(pcr)->pcop)->id;
+ //DFPRINTF((stderr,"copying wildopcode\n"));
+ if(peepBlock->target.wildpCodeOps[index])
+ pcop = pic16_pCodeOpCopy(peepBlock->target.wildpCodeOps[index]);
+ else
+ DFPRINTF((stderr,"error, wildopcode in replace but not source?\n"));
+ } else
+ pcop = pic16_pCodeOpCopy(PCI(pcr)->pcop);
+ }
+ //DFPRINTF((stderr,"inserting pCode\n"));
+ pic16_pCodeInsertAfter(pc, pic16_newpCode(PCI(pcr)->op,pcop));
+ } else if (pcr->type == PC_WILD) {
+ if(PCW(pcr)->invertBitSkipInst)
+ DFPRINTF((stderr,"We need to invert the bit skip instruction\n"));
+ pic16_pCodeInsertAfter(pc,
+ pCodeInstructionCopy(PCI(peepBlock->target.wildpCodes[PCW(pcr)->id]),
+ PCW(pcr)->invertBitSkipInst));
+ } else if (pcr->type == PC_COMMENT) {
+ pic16_pCodeInsertAfter(pc, pic16_newpCodeCharP( ((pCodeComment *)(pcr))->comment));
+ }
+
+
+ pc = pc->next;
+#ifdef PCODE_DEBUG
+ DFPRINTF((stderr," NEW Code:"));
+ if(pc) pc->print(stderr,pc);
+#endif
+ pcr = pcr->next;
+ }
+
+ /* We have just replaced the inefficient code with the rule.
+ * Now, we need to re-add the C-source symbols if there are any */
+ pc = pcprev;
+ while(pc_cline ) {
+
+ pc = pic16_findNextInstruction(pc->next);
+ PCI(pc)->cline = pc_cline;
+ pc_cline = PCCS(pc_cline->pc.next);
+
+ }
+
+ return 1;
+ }
+ next_rule:
+ peeprules = peeprules->next;
+ }
+ DFPRINTF((stderr," no rule matched\n"));
+
+ return 0;
+}
projects / fw / sdcc / blobdiff