-------------------------------------------------------------------------*/
#include <stdio.h>
+#include <stdlib.h>
#include "common.h" // Include everything in the SDCC src directory
#include "newalloc.h"
#include "pcode.h"
#include "ralloc.h"
+#if defined(__BORLANDC__) || defined(_MSC_VER)
+#define STRCASECMP stricmp
+#else
+#define STRCASECMP strcasecmp
+#endif
+
+pCodeOp *popCopyGPR2Bit(pCodeOpReg *pc, int bitval);
+
+
+pCodeOp *newpCodeOpWild(int id, pCodePeep *pcp, pCodeOp *subtype);
+pCode *newpCodeWild(int pCodeID, pCodeOp *optional_operand, pCodeOp *optional_label);
+pCode * findNextInstruction(pCode *pc);
+int getpCode(char *mnem,int dest);
+void pBlockMergeLabels(pBlock *pb);
+char *pCode2str(char *str, int size, pCode *pc);
+
+extern pCodeInstruction *pic14Mnemonics[];
+
+
+/****************************************************************/
+/*
+ * 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];
+unsigned tokIdx=0;
+
+
+typedef enum {
+ PCT_NULL=0,
+ PCT_SPACE=1,
+ PCT_PERCENT,
+ 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];
+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 *);
+} pcPattern;
+
+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
+} 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 void * cvt_altpat_label(void *pp);
+static void * cvt_altpat_comment(void *pp);
+static void * cvt_altpat_mnem0(void *pp);
+static void * cvt_altpat_mnem0a(void *pp);
+static void * cvt_altpat_mnem1(void *pp);
+static void * cvt_altpat_mnem1a(void *pp);
+static void * cvt_altpat_mnem1b(void *pp);
+static void * cvt_altpat_mnem2(void *pp);
+static void * cvt_altpat_mnem2a(void *pp);
+
+pcPattern altArr[] = {
+ {ALT_LABEL, alt_label, cvt_altpat_label},
+ {ALT_COMMENT, alt_comment,cvt_altpat_comment},
+ {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, pc_status.pcop.name))
+ return NULL;
+
+ len = strlen(bit);
+
+ if(len == 1) {
+ // check C,Z
+ if(toupper(*bit) == 'C')
+ return PCOP(popCopyGPR2Bit(&pc_status,PIC_C_BIT));
+ if(toupper(*bit) == 'Z')
+ return PCOP(popCopyGPR2Bit(&pc_status,PIC_Z_BIT));
+ }
+
+ // Check DC
+ if(len ==2 && toupper(bit[0]) == 'D' && toupper(bit[1]) == 'C')
+ return PCOP(popCopyGPR2Bit(&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)
+{
+ parsedPattern *p = pp;
+
+ fprintf(stderr,"altpat_label with ID = %d\n",p->pct[1].tok.n);
+ return newpCodeLabel(-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)
+{
+ parsedPattern *p = pp;
+
+ fprintf(stderr,"altpat_comment = %s\n",p->pct[0].tok.s);
+ return newpCodeCharP(p->pct[0].tok.s);
+
+}
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_mnem0(void *pp)
+{
+ parsedPattern *p = pp;
+ int opcode;
+
+ pCodeInstruction *pci=NULL;
+
+ fprintf(stderr,"altpat_mnem0 %s\n", p->pct[0].tok.s);
+
+ opcode = getpCode(p->pct[0].tok.s,0);
+ if(opcode < 0) {
+ fprintf(stderr, "Bad mnemonic\n");
+ return NULL;
+ }
+
+ pci = PCI(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)
+{
+ parsedPattern *p = pp;
+
+ fprintf(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;
+
+ return 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)
+{
+
+ parsedPattern *p = pp;
+ int opcode;
+
+ pCodeInstruction *pci=NULL;
+ pCodeOp *pcosubtype;
+
+ fprintf(stderr,"altpat_mnem1 %s var %s\n", p->pct[0].tok.s,p[1].pct[0].tok.s);
+
+ opcode = getpCode(p->pct[0].tok.s,0);
+ if(opcode < 0) {
+ fprintf(stderr, "Bad mnemonic\n");
+ return NULL;
+ }
+
+ if(pic14Mnemonics[opcode]->bit_inst)
+ pcosubtype = newpCodeOp(p[1].pct[0].tok.s,PO_BIT);
+ else
+ pcosubtype = newpCodeOp(p[1].pct[0].tok.s,PO_GPR_REGISTER);
+
+
+ pci = PCI(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)
+{
+ parsedPattern *p = pp;
+ int opcode;
+
+ pCodeInstruction *pci=NULL;
+ pCodeOp *pcosubtype;
+
+ fprintf(stderr,"altpat_mnem1a %s var %d\n", p->pct[0].tok.s,p[1].pct[1].tok.n);
+
+ opcode = getpCode(p->pct[0].tok.s,0);
+ if(opcode < 0) {
+ fprintf(stderr, "Bad mnemonic\n");
+ return NULL;
+ }
+
+ if(pic14Mnemonics[opcode]->bit_inst)
+ pcosubtype = newpCodeOpBit(NULL,-1,0);
+ else
+ pcosubtype = newpCodeOp(NULL,PO_GPR_REGISTER);
+
+
+ pci = PCI(newpCode(opcode,
+ newpCodeOpWild(p[1].pct[1].tok.n, curPeep, 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(!pci)
+ fprintf(stderr,"couldn't find mnemonic\n");
+
+
+ return pci;
+}
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_mnem1b(void *pp)
+{
+ parsedPattern *p = pp;
+ int opcode;
+
+ pCodeInstruction *pci=NULL;
+
+ fprintf(stderr,"altpat_mnem1b %s var %d\n", p->pct[0].tok.s,p[1].pct[0].tok.n);
+
+ opcode = getpCode(p->pct[0].tok.s,0);
+ if(opcode < 0) {
+ fprintf(stderr, "Bad mnemonic\n");
+ return NULL;
+ }
+
+ pci = PCI(newpCode(opcode, newpCodeOpLit(p[1].pct[0].tok.n) ));
+
+ if(!pci)
+ fprintf(stderr,"couldn't find mnemonic\n");
+
+
+ return pci;
+}
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+static void * cvt_altpat_mnem2(void *pp)
+{
+ parsedPattern *p = pp;
+ int opcode;
+ int dest;
+
+ pCodeInstruction *pci=NULL;
+ pCodeOp *pcosubtype;
+
+ dest = cvt_extract_destination(&p[3]);
+
+ fprintf(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 = getpCode(p->pct[0].tok.s,dest);
+ if(opcode < 0) {
+ fprintf(stderr, "Bad mnemonic\n");
+ return NULL;
+ }
+
+ if(pic14Mnemonics[opcode]->bit_inst) {
+ 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 = newpCodeOp(p[1].pct[0].tok.s,PO_GPR_REGISTER);
+
+
+ pci = PCI(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)
+{
+ parsedPattern *p = pp;
+ int opcode;
+ int dest;
+
+ pCodeInstruction *pci=NULL;
+ pCodeOp *pcosubtype;
+
+ dest = cvt_extract_destination(&p[3]);
+
+ fprintf(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 = getpCode(p->pct[0].tok.s,dest);
+ if(opcode < 0) {
+ fprintf(stderr, "Bad mnemonic\n");
+ return NULL;
+ }
+
+ if(pic14Mnemonics[opcode]->bit_inst)
+ pcosubtype = newpCodeOp(NULL,PO_BIT);
+ else
+ pcosubtype = newpCodeOp(NULL,PO_GPR_REGISTER);
+
+
+ pci = PCI(newpCode(opcode,
+ newpCodeOpWild(p[1].pct[1].tok.n, curPeep, 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(!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)
+{
+
+ 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_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)) {
+ char buffer[50];
+ int i=0;
+
+ while( (isalpha(*ln) || isdigit(*ln)) && i<49)
+ buffer[i++] = *ln++;
+
+ ln--;
+ buffer[i] = 0;
+
+ tokArr[tokIdx].tok.s = Safe_strdup(buffer);
+ tokArr[tokIdx++].tt = PCT_STRING;
+
+ }
+ }
+
+ /* 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;
+}
+
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+
+
+
+void dump1Token(pCodeTokens tt)
+{
+
+ switch(tt) {
+ case PCT_SPACE:
+ fprintf(stderr, " space ");
+ break;
+ case PCT_PERCENT:
+ fprintf(stderr, " pct ");
+ fputc('%', stderr);
+ break;
+ case PCT_COLON:
+ fprintf(stderr, " col ");
+ fputc(':',stderr);
+ 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 ");
+
+ }
+}
+
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+
+int pcComparePattern(pCodeToken *pct, char *pat, int max_tokens)
+{
+ int i=0;
+
+ if(!pct || !pat || !*pat)
+ return 0;
+
+ //fprintf(stderr,"comparing against:\n");
+
+ while(i < max_tokens) {
+
+ if(*pat == 0){
+ //fprintf(stderr,"matched\n");
+ return (i+1);
+ }
+
+ //dump1Token(*pat); fprintf(stderr,"\n");
+
+ if(pct->tt != *pat)
+ return 0;
+
+
+ pct++;
+ pat++;
+ }
-pCodeOp *newpCodeOpWild(int id, pCodePeep *pcp, pCodeOp *subtype);
-pCode *newpCodeWild(int pCodeID, pCodeOp *optional_operand, pCodeOp *optional_label);
-pCode * findNextInstruction(pCode *pc);
-char *Safe_strdup(char *str);
+ return 0;
+}
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+
+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) {
+ //fprintf(stderr,"matched\n");
+ return i;
+ }
+
+ //dump1Token(*pat); fprintf(stderr,"\n");
+
+ if( !pat || !pat->pcp )
+ return 0;
+
+ if (pat->pcp->pt != *pct)
+ return 0;
+
+ //fprintf(stderr," pct=%d\n",*pct);
+ pct++;
+ pat++;
+ i++;
+ }
+
+ return 0;
+
+}
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+
+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. */
+/*-----------------------------------------------------------------*/
+
+void parseTokens(void)
+{
+ unsigned i;
+ pCode *pc;
+
+ if(!tokIdx)
+ return;
+
+ for(i=0; i<=tokIdx; i++)
+ dump1Token(tokArr[i].tt);
+
+ fputc('\n',stderr);
+
+ {
+ 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){
+ fprintf(stderr," label\n");
+ state = PS_HAVE_LABEL;
+ } else
+ fprintf(stderr," bad state (%d) for label\n",state);
+ break;
+
+ case PCP_STR:
+ fprintf(stderr," %s is",tokArr[ltokIdx].tok.s);
+ switch(state) {
+ case PS_START:
+ case PS_HAVE_LABEL:
+ fprintf(stderr," mnem\n");
+ cPmnem = tokArr[ltokIdx].tok.s;
+ state = PS_HAVE_MNEM;
+ break;
+ case PS_HAVE_MNEM:
+ fprintf(stderr," 1st operand\n");
+ cP1stop = tokArr[ltokIdx].tok.s;
+ //pco1 = newpCodeOp(NULL,PO_GPR_REGISTER);
+ state = PS_HAVE_1OPERAND;
+ break;
+ case PS_HAVE_1OPERAND:
+ fprintf(stderr," error expecting comma\n");
+ break;
+ case PS_HAVE_COMMA:
+ fprintf(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:
+ fprintf(stderr," wild mnem\n");
+ state = PS_HAVE_MNEM;
+ break;
+ case PS_HAVE_MNEM:
+ fprintf(stderr," 1st operand is wild\n");
+ state = PS_HAVE_1OPERAND;
+ break;
+ case PS_HAVE_1OPERAND:
+ fprintf(stderr," error expecting comma\n");
+ break;
+ case PS_HAVE_COMMA:
+ fprintf(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:
+ fprintf(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:
+ fprintf(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){
+ fprintf(stderr," got a comma\n");
+ state = PS_HAVE_COMMA;
+ } else
+ fprintf(stderr," unexpected comma\n");
+ }
+
+ matching = 1;
+ parsedPatArr[lparsedPatIdx].pcp = &pcpArr[lpcpIdx];
+ parsedPatArr[lparsedPatIdx].pct = &tokArr[ltokIdx];
+ lparsedPatIdx++;
+
+ //dump1Token(tokArr[ltokIdx].tt);
+
+ if(advTokIdx(<okIdx, strlen(pcpArr[lpcpIdx].tokens) ) ) {
+ fprintf(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]);
+ if(pc && pc->print)
+ pc->print(stderr,pc);
+ //if(pc && pc->destruct) pc->destruct(pc); dumps core?
+ if(curBlock && pc)
+ addpCode2pBlock(curBlock, pc);
+ }
+ j += c;
+ }
+ k++;
+ }
+ while(j<=lparsedPatIdx && k<ALTPATTERNS);
-/****************************************************************/
/*
- * rootRules - defined in SDCCpeep.c
- * This is a pointer to the (parsed) peephole rules that are
- * defined in peep.def.
- */
+ fprintf(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]);
+ fprintf(stderr," %d",parsedPatArr[j].pcp->pt);
+ j++;
+ }
+ while(j<lparsedPatIdx);
+*/
+ fprintf(stderr,"\n");
-extern peepRule *rootRules;
+ }
-/****************************************************************/
-/****************************************************************/
-typedef struct _DLL {
- struct _DLL *prev;
- struct _DLL *next;
- // void *data;
-} _DLL;
+}
+
+/*-----------------------------------------------------------------*/
+/* */
+/*-----------------------------------------------------------------*/
+void peepRuleBlock2pCodeBlock( lineNode *ln)
+{
+
+ if(!ln)
+ return;
+ for( ; ln; ln = ln->next) {
-typedef struct pCodePeepSnippets
+ fprintf(stderr,"%s\n",ln->line);
+
+ tokenizeLineNode(ln->line);
+ parseTokens();
+
+ }
+}
+
+/*-----------------------------------------------------------------*/
+/* peepRuleCondition */
+/*-----------------------------------------------------------------*/
+static void peepRuleCondition(char *cond)
{
- _DLL dll;
- pCodePeep *peep;
-} pCodePeepSnippets;
+ if(!cond)
+ return;
+ fprintf(stderr,"\nCondition: %s\n",cond);
-static pCodePeepSnippets *peepSnippets=NULL;
+ /* brute force compares for now */
+
+ if(STRCASECMP(cond, "NZ") == 0) {
+ fprintf(stderr,"found NZ\n");
+ curPeep->postFalseCond = PCC_Z;
+
+ }
+
+}
+/*-----------------------------------------------------------------*/
+/* 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. */
+/* */
+/*-----------------------------------------------------------------*/
+
+void peepRules2pCode(peepRule *rules)
+{
+ peepRule *pr;
+
+ pCodePeepSnippets *pcps;
+
+ /* 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) {
+
+ fprintf(stderr,"\nRule:\n\n");
+ pcps = Safe_calloc(1,sizeof(pCodePeepSnippets));
+ curPeep = pcps->peep = Safe_calloc(1,sizeof(pCodePeep));
+
+ curPeep->vars = NULL;
+ curPeep->wildpCodes = NULL; curPeep->wildpCodeOps = NULL;
+ curPeep->postFalseCond = PCC_NONE;
+ curPeep->postTrueCond = PCC_NONE;
+
+ peepSnippets = DLL_append((_DLL*)peepSnippets,(_DLL*)pcps);
+
+ curPeep->target = curBlock = newpCodeChain(NULL, 'W', NULL);
+ sMaxWildVar = 0;
+ sMaxWildMnem = 0;
+
+ /* Convert the target block */
+ peepRuleBlock2pCodeBlock(pr->match);
+
+ fprintf(stderr,"finished target, here it is in pcode form:\n");
+ printpBlock(stderr, curBlock);
+
+ fprintf(stderr,"target with labels merged:\n");
+ pBlockMergeLabels(curBlock);
+ printpBlock(stderr, curBlock);
+
+ fprintf(stderr,"\nReplaced by:\n");
+
+
+ curPeep->replace = curBlock = newpCodeChain(NULL, 'W', NULL);
+
+ /* Convert the replace block */
+ peepRuleBlock2pCodeBlock(pr->replace);
+
+ fprintf(stderr,"finished replace block, here it is in pcode form:\n");
+ printpBlock(stderr, curBlock);
+
+ fprintf(stderr,"replace with labels merged:\n");
+ pBlockMergeLabels(curBlock);
+ printpBlock(stderr, curBlock);
+
+ peepRuleCondition(pr->cond);
+
+ /* The rule has been converted to pCode. Now allocate
+ * space for the wildcards */
+
+ ++sMaxWildVar;
+ curPeep->nvars = sMaxWildVar;
+ curPeep->vars = Safe_calloc(sMaxWildVar, sizeof(char *));
+
+ curPeep->nops = sMaxWildVar;
+ curPeep->wildpCodeOps = Safe_calloc(sMaxWildVar, sizeof(pCodeOp *));
+
+ curPeep->nwildpCodes = ++sMaxWildMnem;
+ curPeep->wildpCodes = Safe_calloc(sMaxWildMnem, sizeof(char *));
+
+
+ //return; // debug ... don't want to go through all the rules yet
+ }
+
+}
void printpCodeString(FILE *of, pCode *pc, int max)
{
void pCodePeepInit(void)
{
+#if 0
pBlock *pb;
// pCode *pc;
pCodePeep *pcp;
/* Declare a peep code snippet */
/* <FIXME> do I really need a separate struct just to DLL the snippets? */
/* e.g. I could put the DLL into the pCodePeep structure */
+
+ /*
+
+ target:
+
+ movwf %1
+ movf %1,w
+
+ replace:
+
+ movwf %1
+
+ Condition:
+ false condition - PCC_Z (Z bit is not used as input to subsequent code)
+ true condition - none
+ */
pcps = Safe_calloc(1,sizeof(pCodePeepSnippets));
pcp = pcps->peep = Safe_calloc(1,sizeof(pCodePeep));
peepSnippets = DLL_append((_DLL*)peepSnippets,(_DLL*)pcps);
peepSnippets = DLL_append((_DLL*)peepSnippets,(_DLL*)pcps);
{
+ /*
+ target:
+
+ btfsc %0
+ goto %1
+ %3
+ %1: %4
+
+ replace:
+ btfss %0
+ %3
+ %1: %4
+
+ The %3 and %4 are wild opcodes. Since the opcodes
+ are stored in a different array than the wild operands,
+ they can have the same indices and not conflict. So
+ below, the %3 is really a %0, %4 is a %1.
+
+ */
pCodeOp *pcl;
pCodeOp *pcw;
pCodeOp *pcwb;
- pcwb = newpCodeOpWild(0,pcp,newpCodeOpBit(NULL,-1));
+ // Create a new wild operand subtyped as a bit
+ pcwb = newpCodeOpWild(0,pcp,newpCodeOpBit(NULL,-1,0));
+
+ // Create a
pb = newpCodeChain(NULL, 'W',newpCode(POC_BTFSC,pcwb));
pcl = newpCodeOpLabel(-1);
-
+#endif
}
/*-----------------------------------------------------------------*/
return 0;
}
+
+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(pcd->label) {
+ pCode *pcl;
+
+ if(!pcs->label)
+ return 0;
+
+ pcl = pcd->label->pc;
+ //labindex = PCOW(pcl)->id;
+ labindex = -PCL(pcl)->key;
+ fprintf(stderr,"label id = %d (labindex = %d)\n",PCL(pcl)->key,labindex);
+ if(peepBlock->vars[labindex] == NULL) {
+ // First time to encounter this label
+ peepBlock->vars[labindex] = PCL(pcs->label->pc)->label;
+ fprintf(stderr,"first time for a label: %d %s\n",labindex, peepBlock->vars[labindex]);
+ } else {
+ if(strcmp(peepBlock->vars[labindex],PCL(pcs->label->pc)->label) != 0) {
+ fprintf(stderr,"labels don't match\n");
+ return 0;
+ }
+ fprintf(stderr,"matched a label\n");
+ }
+ } else {
+ fprintf(stderr,"destination doesn't have a label\n");
+
+ if(pcs->label)
+ return 0;
+ }
+
+ 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 */
+/* */
+/* */
/*-----------------------------------------------------------------*/
+
int pCodePeepMatchLine(pCodePeep *peepBlock, pCode *pcs, pCode *pcd)
{
int index; // index into wild card arrays
pcs->print(stderr,pcs);
pcd->print(stderr,pcd);
+ if(!pCodePeepMatchLabels(peepBlock, pcs, pcd))
+ return 0;
+
/* Compare the operands */
if(PCI(pcd)->pcop) {
if (PCI(pcd)->pcop->type == PO_WILD) {
fprintf(stderr,"destination is wild\n");
#ifdef DEBUG_PCODEPEEP
- if (index > peepBlock->nvars) {
+ if (index > peepBlock->nops) {
fprintf(stderr,"%s - variables exceeded\n",__FUNCTION__);
exit(1);
}
#endif
PCOW(PCI(pcd)->pcop)->matched = PCI(pcs)->pcop;
+ if(!peepBlock->wildpCodeOps[index]) {
+ peepBlock->wildpCodeOps[index] = PCI(pcs)->pcop;
+
+ //if(PCI(pcs)->pcop->type == PO_GPR_TEMP)
+
+ }
{
char *n;
- if(PCI(pcs)->pcop->type == PO_GPR_TEMP)
+ if(PCI(pcs)->pcop->type == PO_GPR_TEMP)
n = PCOR(PCI(pcs)->pcop)->r->name;
else
n = PCI(pcs)->pcop->name;
if(peepBlock->vars[index])
return (strcmp(peepBlock->vars[index],n) == 0);
else {
+ fprintf(stderr,"first time for a variable: %d, %s\n",index,n);
peepBlock->vars[index] = n; //PCI(pcs)->pcop->name;
return 1;
}
}
}
+ /* 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);
if((pcd->type == PC_WILD) && (pcs->type == PC_OPCODE)) {
- int labindex;
index = PCW(pcd)->id;
peepBlock->wildpCodes[PCW(pcd)->id] = pcs;
- /* Check for a label associated with this wild pCode */
- // If the wild card has a label, make sure the source code does too.
- if(PCW(pcd)->label) {
- if(!pcs->label)
- return 0;
-
- labindex = PCOW(PCW(pcd)->label)->id;
- if(peepBlock->vars[labindex] == NULL) {
- // First time to encounter this label
- peepBlock->vars[labindex] = PCL(pcs->label->pc)->label;
- fprintf(stderr,"first time for a label\n");
- } else {
- if(strcmp(peepBlock->vars[labindex],PCL(pcs->label->pc)->label) != 0) {
- fprintf(stderr,"labels don't match\n");
- return 0;
- }
- fprintf(stderr,"matched a label\n");
- }
-
- }
+ if(!pCodePeepMatchLabels(peepBlock, pcs, pcd))
+ return 0;
if(PCW(pcd)->operand) {
PCOW(PCI(pcd)->pcop)->matched = PCI(pcs)->pcop;
if(pcs) {
fprintf(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 */
{
int i;
+ if(!pcp)
+ return;
- for(i=0;i<pcp->nvars; i++)
+ for(i=0;i<pcp->nvars; i++) {
pcp->vars[i] = NULL;
-
+ pcp->wildpCodeOps[i] = NULL;
+ }
}
/*-----------------------------------------------------------------*/
+/* pCodeInsertAfter - splice in the pCode chain starting with pc2 */
+/* into the pCode chain containing pc1 */
/*-----------------------------------------------------------------*/
void pCodeInsertAfter(pCode *pc1, pCode *pc2)
{
if(pc1->next)
pc1->next->prev = pc2;
+ pc2->pb = pc1->pb;
pc2->prev = pc1;
pc1->next = pc2;
switch(pcop->type) {
case PO_CRY:
case PO_BIT:
+ fprintf(stderr,"pCodeOpCopy bit\n");
pcopnew = Safe_calloc(1,sizeof(pCodeOpBit) );
PCOB(pcopnew)->bit = PCOB(pcop)->bit;
PCOB(pcopnew)->inBitSpace = PCOB(pcop)->inBitSpace;
case PO_WILD:
/* Here we expand the wild card into the appropriate type: */
/* By recursively calling pCodeOpCopy */
+ fprintf(stderr,"pCodeOpCopy wild\n");
if(PCOW(pcop)->matched)
pcopnew = pCodeOpCopy(PCOW(pcop)->matched);
else {
break;
case PO_LABEL:
+ fprintf(stderr,"pCodeOpCopy label\n");
pcopnew = Safe_calloc(1,sizeof(pCodeOpLabel) );
PCOLAB(pcopnew)->key = PCOLAB(pcop)->key;
break;
case PO_LITERAL:
case PO_IMMEDIATE:
+ fprintf(stderr,"pCodeOpCopy lit\n");
pcopnew = Safe_calloc(1,sizeof(pCodeOpLit) );
PCOL(pcopnew)->lit = PCOL(pcop)->lit;
break;
case PO_GPR_REGISTER:
case PO_GPR_TEMP:
- case PO_SFR_REGISTER:
+ case PO_GPR_BIT:
+ fprintf(stderr,"pCodeOpCopy GPR register\n");
+ pcopnew = Safe_calloc(1,sizeof(pCodeOpReg) );
+ PCOR(pcopnew)->r = PCOR(pcop)->r;
+ PCOR(pcopnew)->rIdx = PCOR(pcop)->rIdx;
+ fprintf(stderr," register index %d\n", PCOR(pcop)->r->rIdx);
+ break;
+
case PO_DIR:
+ fprintf(stderr,"pCodeOpCopy PO_DIR\n");
+ case PO_SFR_REGISTER:
case PO_STR:
case PO_NONE:
case PO_W:
case PO_STATUS:
case PO_FSR:
case PO_INDF:
+ case PO_PCL:
+ case PO_PCLATH:
+ fprintf(stderr,"pCodeOpCopy register type %d\n", pcop->type);
pcopnew = Safe_calloc(1,sizeof(pCodeOp) );
}
pcopnew->type = pcop->type;
- pcopnew->name = Safe_strdup(pcop->name);
+ if(pcop->name)
+ pcopnew->name = Safe_strdup(pcop->name);
+ else
+ pcopnew->name = NULL;
return pcopnew;
}
{
pCode *pc;
+
while(f && f!=t) {
fprintf(stderr,"delete pCode:\n");
pc = f->next;
f->print(stderr,f);
- //f->delete(f);
+ //f->delete(f); this dumps core...
+
f = pc;
+
}
}
while(peeprules) {
peepBlock = ((pCodePeepSnippets*)peeprules)->peep;
+ if(!peepBlock || !peepBlock->target || !peepBlock->target->pcHead)
+ goto next_rule;
+
pCodePeepClrVars(peepBlock);
pcin = pc;
fprintf(stderr," end of rule\n");
}
- if(matched && pcin) {
+ if(matched) {
/* 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
* the `postFalseCond' as input then we abort the match
*/
fprintf(stderr," matched rule so far, now checking conditions\n");
- if (peepBlock->postFalseCond &&
+ if (pcin && peepBlock->postFalseCond &&
(pCodeSearchCondition(pcin,peepBlock->postFalseCond) > 0) )
matched = 0;
}
- if(matched && pcin) {
+ if(matched) {
pCode *pcprev;
pCode *pcr;
printpCodeString(stderr,peepBlock->target->pcHead,10);
fprintf(stderr,"first thing matched\n");
pc->print(stderr,pc);
- fprintf(stderr,"last thing matched\n");
- pcin->print(stderr,pcin);
+ if(pcin) {
+ fprintf(stderr,"last thing matched\n");
+ pcin->print(stderr,pcin);
+ }
/* Unlink the original code */
pcprev = pc->prev;
pcprev->next = pcin;
- pcin->prev = pc->prev;
- pCodeDeleteChain(pc,pcin);
+ if(pcin)
+ pcin->prev = pc->prev;
+
+ {
+ /* DEBUG */
+ /* Converted the deleted pCodes into comments */
+
+ char buf[256];
+
+ buf[0] = ';';
+ buf[1] = '#';
+
+ while(pc && pc!=pcin) {
+ pCode2str(&buf[2], 254, pc);
+ pCodeInsertAfter(pcprev, newpCodeCharP(buf));
+ pcprev = pcprev->next;
+ pc = pc->next;
+ }
+ }
+
+ if(pcin)
+ pCodeDeleteChain(pc,pcin);
/* Generate the replacement code */
pc = pcprev;
/* 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)
- pcop = pCodeOpCopy(PCI(pcr)->pcop);
-
+ 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;
+ fprintf(stderr,"copying wildopcode\n");
+ if(peepBlock->wildpCodeOps[index])
+ pcop = pCodeOpCopy(peepBlock->wildpCodeOps[index]);
+ else
+ fprintf(stderr,"error, wildopcode in replace but not source?\n");
+ } else
+ pcop = pCodeOpCopy(PCI(pcr)->pcop);
+ }
+ fprintf(stderr,"inserting pCode\n");
pCodeInsertAfter(pc, newpCode(PCI(pcr)->op,pcop));
} else if (pcr->type == PC_WILD) {
pCodeInsertAfter(pc,peepBlock->wildpCodes[PCW(pcr)->id]);
+ } else if (pcr->type == PC_COMMENT) {
+ pCodeInsertAfter(pc, newpCodeCharP( ((pCodeComment *)(pcr))->comment));
}
pc = pc->next;
- pc->print(stderr,pc);
+ if(pc)
+ pc->print(stderr,pc);
pcr = pcr->next;
}
return 1;
}
-
+ next_rule:
peeprules = peeprules->next;
}
return 0;
}
+
+
+
+
+
+
+
+
+
+
+#if 0
+/*******************/
+pCode *parseLineNode(char *ln)
+{
+ char buffer[50], *s;
+ int state=0; //0 label, 1 mnemonic, 2 operand, 3 operand, 4 comment
+ int var;
+ pCode *pc = NULL;
+ // pCodeLabel *pcl = NULL;
+
+ if(!ln || !*ln)
+ return pc;
+
+ s = buffer;
+ *s = 0;
+
+ while(*ln) {
+
+ /* skip white space */
+ while (isspace (*ln))
+ ln++;
+
+ switch(state) {
+
+ case 0: // look for a label
+ case 1: // look for mnemonic
+
+ if(*ln == '%') {
+
+ // Wild
+
+ ln++;
+ if(!isdigit(*ln) )
+ break;
+ //goto next_state;
+
+ var = strtol(ln, &ln, 10);
+ if(*ln == ':') {
+ // valid wild card label
+ fprintf(stderr, " wildcard label: %d\n",var);
+ ln++;
+ } else
+ fprintf(stderr, " wild opcode: %d\n",var), state++;
+
+ } else {
+ // not wild
+ // Extract the label/mnemonic from the line
+
+ s = buffer;
+ while(*ln && !(isspace(*ln) || *ln == ':'))
+ *s++ = *ln++;
+
+ *s = 0;
+ if(*ln == ':')
+ fprintf(stderr," regular label: %s\n",buffer), ln++;
+ else
+ fprintf(stderr," regular mnem: %s\n",buffer), state++;
+ }
+ state++;
+ break;
+
+ default:
+ ln++;
+
+ }
+ }
+
+ return pc;
+
+}
+#endif
projects / fw / sdcc / blobdiff