#include "pcode.h"
#include "ralloc.h"
+
+#if defined(__BORLANDC__) || defined(_MSC_VER)
+#define STRCASECMP stricmp
+#else
+#define STRCASECMP strcasecmp
+#endif
+
// Eventually this will go into device dependent files:
pCodeOpReg pc_status = {{PO_STATUS, "STATUS"}, -1, NULL,NULL};
pCodeOpReg pc_indf = {{PO_INDF, "INDF"}, -1, NULL,NULL};
pCodeOpReg pc_fsr = {{PO_FSR, "FSR"}, -1, NULL,NULL};
+pCodeOpReg pc_pcl = {{PO_PCL, "PCL"}, -1, NULL,NULL};
+pCodeOpReg pc_pclath = {{PO_PCLATH, "PCLATH"}, -1, NULL,NULL};
+
+static int mnemonics_initialized = 0;
+
+
+static hTab *pic14MnemonicsHash = NULL;
-//static char *PIC_mnemonics[] = {
-static char *scpADDLW = "ADDLW";
-static char *scpADDWF = "ADDWF";
-static char *scpANDLW = "ANDLW";
-static char *scpANDWF = "ANDWF";
-static char *scpBCF = "BCF";
-static char *scpBSF = "BSF";
-static char *scpBTFSC = "BTFSC";
-static char *scpBTFSS = "BTFSS";
-static char *scpCALL = "CALL";
-static char *scpCOMF = "COMF";
-static char *scpCLRF = "CLRF";
-static char *scpCLRW = "CLRW";
-static char *scpDECF = "DECF";
-static char *scpDECFSZ = "DECFSZ";
-static char *scpGOTO = "GOTO";
-static char *scpINCF = "INCF";
-static char *scpINCFSZ = "INCFSZ";
-static char *scpIORLW = "IORLW";
-static char *scpIORWF = "IORWF";
-static char *scpMOVF = "MOVF";
-static char *scpMOVLW = "MOVLW";
-static char *scpMOVWF = "MOVWF";
-static char *scpNEGF = "NEGF";
-static char *scpRETLW = "RETLW";
-static char *scpRETURN = "RETURN";
-static char *scpSUBLW = "SUBLW";
-static char *scpSUBWF = "SUBWF";
-static char *scpTRIS = "TRIS";
-static char *scpXORLW = "XORLW";
-static char *scpXORWF = "XORWF";
static pFile *the_pFile = NULL;
/* Forward declarations */
/****************************************************************/
-static void unlink(pCode *pc);
+static void unlinkPC(pCode *pc);
static void genericAnalyze(pCode *pc);
static void AnalyzeGOTO(pCode *pc);
static void AnalyzeSKIP(pCode *pc);
static char *get_op( pCodeInstruction *pcc);
int pCodePeepMatchLine(pCodePeep *peepBlock, pCode *pcs, pCode *pcd);
int pCodePeepMatchRule(pCode *pc);
-
-
-char *Safe_strdup(char *str)
+void pBlockStats(FILE *of, pBlock *pb);
+
+
+pCodeInstruction pciADDWF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_ADDWF,
+ "ADDWF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ (PCC_W | PCC_REGISTER), // inCond
+ (PCC_REGISTER | PCC_Z) // outCond
+};
+
+pCodeInstruction pciADDFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_ADDWF,
+ "ADDWF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ (PCC_W | PCC_REGISTER), // inCond
+ (PCC_W | PCC_Z) // outCond
+};
+
+pCodeInstruction pciADDLW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_ADDLW,
+ "ADDLW",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_W, // inCond
+ (PCC_W | PCC_Z | PCC_C | PCC_DC) // outCond
+};
+
+pCodeInstruction pciANDLW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_ANDLW,
+ "ANDLW",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_W, // inCond
+ (PCC_W | PCC_Z) // outCond
+};
+
+pCodeInstruction pciANDWF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_ANDWF,
+ "ANDWF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ (PCC_W | PCC_REGISTER), // inCond
+ (PCC_REGISTER | PCC_Z) // outCond
+};
+
+pCodeInstruction pciANDFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_ANDWF,
+ "ANDWF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ (PCC_W | PCC_REGISTER), // inCond
+ (PCC_W | PCC_Z) // outCond
+};
+
+pCodeInstruction pciBCF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_BCF,
+ "BCF",
+ NULL, // operand
+ 2, // num ops
+ 0,1, // dest, bit instruction
+ PCC_NONE, // inCond
+ PCC_EXAMINE_PCOP // outCond
+};
+
+pCodeInstruction pciBSF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_BSF,
+ "BSF",
+ NULL, // operand
+ 2, // num ops
+ 0,1, // dest, bit instruction
+ PCC_NONE, // inCond
+ PCC_EXAMINE_PCOP // outCond
+};
+
+pCodeInstruction pciBTFSC = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ AnalyzeSKIP,
+ genericDestruct,
+ genericPrint},
+ POC_BTFSC,
+ "BTFSC",
+ NULL, // operand
+ 2, // num ops
+ 0,1, // dest, bit instruction
+ PCC_EXAMINE_PCOP, // inCond
+ PCC_NONE // outCond
+};
+
+pCodeInstruction pciBTFSS = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ AnalyzeSKIP,
+ genericDestruct,
+ genericPrint},
+ POC_BTFSS,
+ "BTFSS",
+ NULL, // operand
+ 2, // num ops
+ 0,1, // dest, bit instruction
+ PCC_EXAMINE_PCOP, // inCond
+ PCC_NONE // outCond
+};
+
+pCodeInstruction pciCALL = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_CALL,
+ "CALL",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_NONE, // inCond
+ PCC_NONE // outCond
+};
+
+pCodeInstruction pciCOMF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_COMF,
+ "COMF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_REGISTER // outCond
+};
+
+pCodeInstruction pciCOMFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_COMFW,
+ "COMF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_W // outCond
+};
+
+pCodeInstruction pciCLRF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_CLRF,
+ "CLRF",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_REGISTER // outCond
+};
+
+pCodeInstruction pciCLRW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_CLRW,
+ "CLRW",
+ NULL, // operand
+ 0, // num ops
+ 0,0, // dest, bit instruction
+ PCC_W, // inCond
+ PCC_W // outCond
+};
+
+pCodeInstruction pciDECF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_DECF,
+ "DECF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_REGISTER // outCond
+};
+
+pCodeInstruction pciDECFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_DECFW,
+ "DECF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_W // outCond
+};
+
+pCodeInstruction pciDECFSZ = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ AnalyzeSKIP,
+ genericDestruct,
+ genericPrint},
+ POC_DECFSZ,
+ "DECFSZ",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_REGISTER // outCond
+};
+
+pCodeInstruction pciDECFSZW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ AnalyzeSKIP,
+ genericDestruct,
+ genericPrint},
+ POC_DECFSZW,
+ "DECFSZ",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_W // outCond
+};
+
+pCodeInstruction pciGOTO = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ AnalyzeGOTO,
+ genericDestruct,
+ genericPrint},
+ POC_GOTO,
+ "GOTO",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_NONE, // inCond
+ PCC_NONE // outCond
+};
+
+
+pCodeInstruction pciINCF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_INCF,
+ "INCF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_REGISTER // outCond
+};
+
+pCodeInstruction pciINCFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_INCFW,
+ "INCF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_W // outCond
+};
+
+pCodeInstruction pciINCFSZ = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ AnalyzeSKIP,
+ genericDestruct,
+ genericPrint},
+ POC_INCFSZ,
+ "INCFSZ",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_REGISTER // outCond
+};
+
+pCodeInstruction pciINCFSZW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ AnalyzeSKIP,
+ genericDestruct,
+ genericPrint},
+ POC_INCFSZW,
+ "INCFSZ",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_W // outCond
+};
+
+pCodeInstruction pciIORWF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_IORWF,
+ "IORWF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ (PCC_W | PCC_REGISTER), // inCond
+ (PCC_REGISTER | PCC_Z) // outCond
+};
+
+pCodeInstruction pciIORFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_IORWF,
+ "IORWF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ (PCC_W | PCC_REGISTER), // inCond
+ (PCC_W | PCC_Z) // outCond
+};
+
+pCodeInstruction pciIORLW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_IORLW,
+ "IORLW",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_W, // inCond
+ (PCC_W | PCC_Z) // outCond
+};
+
+pCodeInstruction pciMOVF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_MOVF,
+ "MOVF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_Z // outCond
+};
+
+pCodeInstruction pciMOVFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_MOVFW,
+ "MOVF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ (PCC_W | PCC_Z) // outCond
+};
+
+pCodeInstruction pciMOVWF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_MOVWF,
+ "MOVWF",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_W, // inCond
+ 0 // outCond
+};
+
+pCodeInstruction pciMOVLW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_MOVLW,
+ "MOVLW",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_NONE, // inCond
+ PCC_W // outCond
+};
+
+pCodeInstruction pciNEGF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_NEGF,
+ "NEGF",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_REGISTER, // inCond
+ PCC_NONE // outCond
+};
+
+
+pCodeInstruction pciRETLW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ AnalyzeRETURN,
+ genericDestruct,
+ genericPrint},
+ POC_RETLW,
+ "RETLW",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_NONE, // inCond
+ PCC_W // outCond
+};
+
+pCodeInstruction pciRETURN = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ AnalyzeRETURN,
+ genericDestruct,
+ genericPrint},
+ POC_RETURN,
+ "RETURN",
+ NULL, // operand
+ 0, // num ops
+ 0,0, // dest, bit instruction
+ PCC_NONE, // inCond
+ PCC_W // outCond
+};
+
+
+pCodeInstruction pciRLF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_RLF,
+ "RLF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ (PCC_C | PCC_REGISTER), // inCond
+ (PCC_REGISTER | PCC_Z | PCC_C | PCC_DC) // outCond
+};
+
+pCodeInstruction pciRLFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_RLFW,
+ "RLF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ (PCC_C | PCC_REGISTER), // inCond
+ (PCC_W | PCC_Z | PCC_C | PCC_DC) // outCond
+};
+
+pCodeInstruction pciRRF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_RRF,
+ "RRF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ (PCC_C | PCC_REGISTER), // inCond
+ (PCC_REGISTER | PCC_Z | PCC_C | PCC_DC) // outCond
+};
+
+pCodeInstruction pciRRFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_RRFW,
+ "RRF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ (PCC_C | PCC_REGISTER), // inCond
+ (PCC_W | PCC_Z | PCC_C | PCC_DC) // outCond
+};
+
+pCodeInstruction pciSUBWF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_SUBWF,
+ "SUBWF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ (PCC_W | PCC_REGISTER), // inCond
+ (PCC_REGISTER | PCC_Z) // outCond
+};
+
+pCodeInstruction pciSUBFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_SUBWF,
+ "SUBWF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ (PCC_W | PCC_REGISTER), // inCond
+ (PCC_W | PCC_Z) // outCond
+};
+
+pCodeInstruction pciSUBLW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_SUBLW,
+ "SUBLW",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_W, // inCond
+ (PCC_W | PCC_Z | PCC_C | PCC_DC) // outCond
+};
+
+pCodeInstruction pciSWAPF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_SWAPF,
+ "SWAPF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ (PCC_REGISTER), // inCond
+ (PCC_REGISTER) // outCond
+};
+
+pCodeInstruction pciSWAPFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_SWAPFW,
+ "SWAPF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ (PCC_REGISTER), // inCond
+ (PCC_W) // outCond
+};
+pCodeInstruction pciTRIS = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_TRIS,
+ "TRIS",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_NONE, // inCond
+ PCC_NONE
+};
+
+
+pCodeInstruction pciXORWF = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_XORWF,
+ "XORWF",
+ NULL, // operand
+ 2, // num ops
+ 1,0, // dest, bit instruction
+ (PCC_W | PCC_REGISTER), // inCond
+ (PCC_REGISTER | PCC_Z) // outCond
+};
+
+pCodeInstruction pciXORFW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_XORWF,
+ "XORWF",
+ NULL, // operand
+ 2, // num ops
+ 0,0, // dest, bit instruction
+ (PCC_W | PCC_REGISTER), // inCond
+ (PCC_W | PCC_Z) // outCond
+};
+
+pCodeInstruction pciXORLW = {
+ {PC_OPCODE, NULL, NULL, 0, NULL, NULL, NULL, NULL,
+ genericAnalyze,
+ genericDestruct,
+ genericPrint},
+ POC_XORLW,
+ "XORLW",
+ NULL, // operand
+ 1, // num ops
+ 0,0, // dest, bit instruction
+ PCC_W, // inCond
+ (PCC_W | PCC_Z | PCC_C | PCC_DC) // outCond
+};
+
+
+#define MAX_PIC14MNEMONICS 100
+pCodeInstruction *pic14Mnemonics[MAX_PIC14MNEMONICS];
+
+/*-----------------------------------------------------------------*/
+/* SAFE_snprintf - like snprintf except the string pointer is */
+/* after the string has been printed to. This is */
+/* useful for printing to string as though if it */
+/* were a stream. */
+/*-----------------------------------------------------------------*/
+void SAFE_snprintf(char **str, size_t *size, const char *format, ...)
{
- char *copy;
+ va_list val;
+ int len;
- if(!str)
- return NULL;
-
- copy = strdup(str);
- if(!copy) {
- fprintf(stderr, "out of memory %s,%d\n",__FUNCTION__,__LINE__);
- exit(1);
- }
+ if(!str || !*str)
+ return;
- return copy;
+ va_start(val, format);
+#if 0
+ // Alas, vsnprintf is not ANSI standard, and does not exist
+ // on Solaris (and probably other non-Gnu flavored Unixes).
+ vsnprintf(*str, *size, format, val);
+#else
+ // This, of course, is *not* safe, despite the name.
+ vsprintf(*str, format, val);
+#endif
+ va_end (val);
+
+ len = strlen(*str);
+ *str += len;
+ *size -= len;
+
}
void pCodeInitRegisters(void)
}
+/*-----------------------------------------------------------------*/
+/* mnem2key - convert a pic mnemonic into a hash key */
+/* (BTW - this spreads the mnemonics quite well) */
+/* */
+/*-----------------------------------------------------------------*/
+
+int mnem2key(char const *mnem)
+{
+ int key = 0;
+
+ if(!mnem)
+ return 0;
+
+ while(*mnem) {
+
+ key += toupper(*mnem++) +1;
+
+ }
+
+ return (key & 0x1f);
+
+}
+
+void pic14initMnemonics(void)
+{
+ int i = 0;
+ int key;
+ // char *str;
+ pCodeInstruction *pci;
+
+ if(mnemonics_initialized)
+ return;
+
+ pic14Mnemonics[POC_ADDLW] = &pciADDLW;
+ pic14Mnemonics[POC_ADDWF] = &pciADDWF;
+ pic14Mnemonics[POC_ADDFW] = &pciADDFW;
+ pic14Mnemonics[POC_ANDLW] = &pciANDLW;
+ pic14Mnemonics[POC_ANDWF] = &pciANDWF;
+ pic14Mnemonics[POC_ANDFW] = &pciANDFW;
+ pic14Mnemonics[POC_BCF] = &pciBCF;
+ pic14Mnemonics[POC_BSF] = &pciBSF;
+ pic14Mnemonics[POC_BTFSC] = &pciBTFSC;
+ pic14Mnemonics[POC_BTFSS] = &pciBTFSS;
+ pic14Mnemonics[POC_CALL] = &pciCALL;
+ pic14Mnemonics[POC_COMF] = &pciCOMF;
+ pic14Mnemonics[POC_COMFW] = &pciCOMFW;
+ pic14Mnemonics[POC_CLRF] = &pciCLRF;
+ pic14Mnemonics[POC_CLRW] = &pciCLRW;
+ pic14Mnemonics[POC_DECF] = &pciDECF;
+ pic14Mnemonics[POC_DECFW] = &pciDECFW;
+ pic14Mnemonics[POC_DECFSZ] = &pciDECFSZ;
+ pic14Mnemonics[POC_DECFSZW] = &pciDECFSZW;
+ pic14Mnemonics[POC_GOTO] = &pciGOTO;
+ pic14Mnemonics[POC_INCF] = &pciINCF;
+ pic14Mnemonics[POC_INCFW] = &pciINCFW;
+ pic14Mnemonics[POC_INCFSZ] = &pciINCFSZ;
+ pic14Mnemonics[POC_INCFSZW] = &pciINCFSZW;
+ pic14Mnemonics[POC_IORLW] = &pciIORLW;
+ pic14Mnemonics[POC_IORWF] = &pciIORWF;
+ pic14Mnemonics[POC_IORFW] = &pciIORFW;
+ pic14Mnemonics[POC_MOVF] = &pciMOVF;
+ pic14Mnemonics[POC_MOVFW] = &pciMOVFW;
+ pic14Mnemonics[POC_MOVLW] = &pciMOVLW;
+ pic14Mnemonics[POC_MOVWF] = &pciMOVWF;
+ pic14Mnemonics[POC_NEGF] = &pciNEGF;
+ pic14Mnemonics[POC_RETLW] = &pciRETLW;
+ pic14Mnemonics[POC_RETURN] = &pciRETURN;
+ pic14Mnemonics[POC_RLF] = &pciRLF;
+ pic14Mnemonics[POC_RLFW] = &pciRLFW;
+ pic14Mnemonics[POC_RRF] = &pciRRF;
+ pic14Mnemonics[POC_RRFW] = &pciRRFW;
+ pic14Mnemonics[POC_SUBLW] = &pciSUBLW;
+ pic14Mnemonics[POC_SUBWF] = &pciSUBWF;
+ pic14Mnemonics[POC_SUBFW] = &pciSUBFW;
+ pic14Mnemonics[POC_SWAPF] = &pciSWAPF;
+ pic14Mnemonics[POC_SWAPFW] = &pciSWAPFW;
+ pic14Mnemonics[POC_TRIS] = &pciTRIS;
+ pic14Mnemonics[POC_XORLW] = &pciXORLW;
+ pic14Mnemonics[POC_XORWF] = &pciXORWF;
+ pic14Mnemonics[POC_XORFW] = &pciXORFW;
+
+ for(i=0; i<MAX_PIC14MNEMONICS; i++)
+ if(pic14Mnemonics[i])
+ hTabAddItem(&pic14MnemonicsHash, mnem2key(pic14Mnemonics[i]->mnemonic), pic14Mnemonics[i]);
+ pci = hTabFirstItem(pic14MnemonicsHash, &key);
+
+ while(pci) {
+ fprintf( stderr, "element %d key %d, mnem %s\n",i++,key,pci->mnemonic);
+ pci = hTabNextItem(pic14MnemonicsHash, &key);
+ }
+
+ mnemonics_initialized = 1;
+}
+
+int getpCode(char *mnem,unsigned dest)
+{
+
+ pCodeInstruction *pci;
+ int key = mnem2key(mnem);
+
+ if(!mnemonics_initialized)
+ pic14initMnemonics();
+
+ pci = hTabFirstItemWK(pic14MnemonicsHash, key);
+
+ while(pci) {
+
+ if(STRCASECMP(pci->mnemonic, mnem) == 0) {
+ if((pci->num_ops <= 1) || (pci->dest == dest))
+ return(pci->op);
+ }
+
+ pci = hTabNextItemWK (pic14MnemonicsHash);
+
+ }
+
+ return -1;
+}
+
char getpBlock_dbName(pBlock *pb)
{
if(!pb)
return;
for(pb = the_pFile->pbHead; pb; pb = pb->next) {
- if(getpBlock_dbName(pb) == dbName)
+ if(getpBlock_dbName(pb) == dbName) {
+ pBlockStats(of,pb);
printpBlock(of,pb);
+ }
}
}
printf("pcode is alive!\n");
+ //initMnemonics();
+
if(the_pFile) {
pBlock *pb;
}
}
}
+/*-----------------------------------------------------------------*/
+/* int RegCond(pCodeOp *pcop) - if pcop points to the STATUS reg- */
+/* ister, RegCond will return the bit being referenced. */
+/* */
+/* fixme - why not just OR in the pcop bit field */
+/*-----------------------------------------------------------------*/
+
static int RegCond(pCodeOp *pcop)
{
pCode *newpCode (PIC_OPCODE op, pCodeOp *pcop)
{
pCodeInstruction *pci ;
-
+ if(!mnemonics_initialized)
+ pic14initMnemonics();
+
pci = Safe_calloc(1, sizeof(pCodeInstruction));
- pci->pc.analyze = genericAnalyze; // pointers to the generic functions, it
- pci->pc.destruct = genericDestruct; // doesn't hurt to think about C++ virtual
- pci->pc.print = genericPrint; // functions here.
- pci->pc.type = PC_OPCODE; //
- pci->op = op; // the "opcode" for the instruction.
- pci->pc.prev = pci->pc.next = NULL; // The pCode gets linked in later
- pci->pcop = pcop; // The operand of the instruction
- pci->dest = 0; // e.g. W or F
- pci->bit_inst = 0; // e.g. btfxx instructions
- pci->num_ops = 2; // Most instructions have two ops...
- pci->inCond = pci->outCond = PCC_NONE; /* input/output conditions. This is used during
- * optimization to ascertain instruction dependencies.
- * For example, if an instruction affects the Z bit,
- * then the output condition for this instruction
- * is "z bit is affected". The "conditions" are bit
- * constants defined in pcode.h. */
- pci->pc.from = pci->pc.to = NULL; // Flow linkages are defined later
- pci->pc.label = NULL; // Labels get merged into instructions here.
- pci->pc.pb = NULL; // The pBlock to which this instruction belongs
-
- if(pcop && pcop->name)
- printf("newpCode operand name %s\n",pcop->name);
-
- // The most pic dependent portion of the pCode logic:
- switch(op) {
-
- case POC_ANDLW:
- pci->inCond = PCC_W;
- pci->outCond = PCC_W | PCC_Z;
- pci->mnemonic = scpANDLW;
- pci->num_ops = 1;
- break;
- case POC_ANDWF:
- pci->dest = 1;
- pci->inCond = PCC_W | PCC_REGISTER;
- pci->outCond = PCC_REGISTER | PCC_Z;
- pci->mnemonic = scpANDWF;
- break;
- case POC_ANDFW:
- pci->inCond = PCC_W | PCC_REGISTER;
- pci->outCond = PCC_W | PCC_Z;
- pci->mnemonic = scpANDWF;
- break;
+ if((op>=0) && (op < MAX_PIC14MNEMONICS) && pic14Mnemonics[op]) {
+ memcpy(pci, pic14Mnemonics[op], sizeof(pCodeInstruction));
+ pci->pcop = pcop;
- case POC_ADDLW:
- pci->inCond = PCC_W;
- pci->outCond = PCC_W | PCC_Z | PCC_C | PCC_DC;
- pci->mnemonic = scpADDLW;
- pci->num_ops = 1;
- break;
- case POC_ADDWF:
- pci->dest = 1;
- pci->inCond = PCC_W | PCC_REGISTER;
- pci->outCond = PCC_REGISTER | PCC_Z | PCC_C | PCC_DC;
- pci->mnemonic = scpADDWF;
- break;
- case POC_ADDFW:
- pci->inCond = PCC_W | PCC_REGISTER;
- pci->outCond = PCC_W | PCC_Z | PCC_C | PCC_DC;
- pci->mnemonic = scpADDWF;
- break;
+ if(pci->inCond == PCC_EXAMINE_PCOP)
+ pci->inCond = RegCond(pcop);
- case POC_BCF:
- pci->bit_inst = 1;
- pci->mnemonic = scpBCF;
- pci->outCond = RegCond(pcop);
- break;
- case POC_BSF:
- pci->bit_inst = 1;
- pci->mnemonic = scpBSF;
- pci->outCond = RegCond(pcop);
- break;
- case POC_BTFSC:
- pci->bit_inst = 1;
- pci->mnemonic = scpBTFSC;
- pci->pc.analyze = AnalyzeSKIP;
- pci->inCond = RegCond(pcop);
- break;
- case POC_BTFSS:
- pci->bit_inst = 1;
- pci->mnemonic = scpBTFSS;
- pci->pc.analyze = AnalyzeSKIP;
- pci->inCond = RegCond(pcop);
- break;
- case POC_CALL:
- pci->num_ops = 1;
- pci->mnemonic = scpCALL;
- break;
- case POC_COMF:
- pci->mnemonic = scpCOMF;
- break;
- case POC_CLRF:
- pci->num_ops = 1;
- pci->mnemonic = scpCLRF;
- break;
- case POC_CLRW:
- pci->num_ops = 0;
- pci->mnemonic = scpCLRW;
- break;
- case POC_DECF:
- pci->dest = 1;
- case POC_DECFW:
- pci->mnemonic = scpDECF;
- break;
- case POC_DECFSZ:
- pci->dest = 1;
- case POC_DECFSZW:
- pci->mnemonic = scpDECFSZ;
- pci->pc.analyze = AnalyzeSKIP;
- break;
- case POC_GOTO:
- pci->num_ops = 1;
- pci->mnemonic = scpGOTO;
- pci->pc.analyze = AnalyzeGOTO;
- break;
- case POC_INCF:
- pci->dest = 1;
- case POC_INCFW:
- pci->mnemonic = scpINCF;
- break;
- case POC_INCFSZ:
- pci->dest = 1;
- case POC_INCFSZW:
- pci->mnemonic = scpINCFSZ;
- pci->pc.analyze = AnalyzeSKIP;
- break;
- case POC_IORLW:
- pci->num_ops = 1;
- pci->mnemonic = scpIORLW;
- break;
- case POC_IORWF:
- pci->dest = 1;
- case POC_IORFW:
- pci->mnemonic = scpIORWF;
- break;
- case POC_MOVF:
- pci->dest = 1;
- case POC_MOVFW:
- pci->mnemonic = scpMOVF;
- break;
- case POC_MOVLW:
- pci->num_ops = 1;
- pci->mnemonic = scpMOVLW;
- break;
- case POC_MOVWF:
- pci->num_ops = 1;
- pci->mnemonic = scpMOVWF;
- break;
- case POC_NEGF:
- pci->mnemonic = scpNEGF;
- break;
- case POC_RETLW:
- pci->num_ops = 1;
- pci->mnemonic = scpRETLW;
- pci->pc.analyze = AnalyzeRETURN;
- break;
- case POC_RETURN:
- pci->num_ops = 0;
- pci->mnemonic = scpRETURN;
- pci->pc.analyze = AnalyzeRETURN;
- break;
- case POC_SUBLW:
- pci->mnemonic = scpSUBLW;
- pci->num_ops = 1;
- break;
- case POC_SUBWF:
- pci->dest = 1;
- case POC_SUBFW:
- pci->mnemonic = scpSUBWF;
- break;
- case POC_TRIS:
- pci->mnemonic = scpTRIS;
- break;
- case POC_XORLW:
- pci->num_ops = 1;
- pci->mnemonic = scpXORLW;
- break;
- case POC_XORWF:
- pci->dest = 1;
- case POC_XORFW:
- pci->mnemonic = scpXORWF;
- break;
+ if(pci->outCond == PCC_EXAMINE_PCOP)
+ pci->outCond = RegCond(pcop);
- default:
- pci->pc.print = genericPrint;
+ return (pCode *)pci;
}
-
- return (pCode *)pci;
+
+ fprintf(stderr, "pCode mnemonic error %s,%d\n",__FUNCTION__,__LINE__);
+ exit(1);
+
+ return NULL;
}
/*-----------------------------------------------------------------*/
/* line (of assembly code) is declared matched. Note that the */
/* operand may be wild too. */
/* */
+/* Note, a wild instruction is specified just like a wild var: */
+/* %4 ; A wild instruction, */
+/* See the peeph.def file for additional examples */
+/* */
/*-----------------------------------------------------------------*/
pCode *newpCodeWild(int pCodeID, pCodeOp *optional_operand, pCodeOp *optional_label)
pcw->pc.destruct = genericDestruct;
pcw->pc.print = genericPrint;
- pcw->id = pCodeID;
+ pcw->id = pCodeID; // this is the 'n' in %n
pcw->operand = optional_operand;
pcw->label = optional_label;
pcc->pc.destruct = genericDestruct;
pcc->pc.print = genericPrint;
- pcc->comment = Safe_strdup(cP);
+ if(cP)
+ pcc->comment = Safe_strdup(cP);
+ else
+ pcc->comment = NULL;
return ( (pCode *)pcc);
}
+/*-----------------------------------------------------------------*/
+/* pCodeLabelDestruct - free memory used by a label. */
+/*-----------------------------------------------------------------*/
+static void pCodeLabelDestruct(pCode *pc)
+{
+
+ if(!pc)
+ return;
+
+ if((pc->type == PC_LABEL) && PCL(pc)->label)
+ free(PCL(pc)->label);
+
+ free(pc);
+
+}
pCode *newpCodeLabel(int key)
{
pcl->pc.pb = NULL;
pcl->pc.analyze = genericAnalyze;
- pcl->pc.destruct = genericDestruct;
+ pcl->pc.destruct = pCodeLabelDestruct;
pcl->pc.print = pCodePrintLabel;
pcl->key = key;
+ pcl->label = NULL;
if(key>0) {
sprintf(s,"_%05d_DS_",key);
- pcl->label = Safe_strdup(s);
- } else
- pcl->label = NULL;
+ if(s)
+ pcl->label = Safe_strdup(s);
+ }
+
return ( (pCode *)pcl);
{
pCode *pc = newpCodeLabel(-1);
- PCL(pc)->label = Safe_strdup(str);
+ if(str)
+ PCL(pc)->label = Safe_strdup(str);
+ else
+ PCL(pc)->label = NULL;
return pc;
}
pBlock *PpB;
- _ALLOC(PpB,sizeof(pBlock));
+ PpB = Safe_calloc(1,sizeof(pBlock) );
PpB->next = PpB->prev = NULL;
PpB->function_entries = PpB->function_exits = PpB->function_calls = NULL;
return pB;
}
-/*-----------------------------------------------------------------*/
-/*-----------------------------------------------------------------*/
-
-pCodeOp *newpCodeOp(char *name, PIC_OPTYPE type)
-{
- pCodeOp *pcop;
-
- pcop = Safe_calloc(1,sizeof(pCodeOp) );
- pcop->type = type;
- pcop->name = Safe_strdup(name);
-
- return pcop;
-}
-
/*-----------------------------------------------------------------*/
/* newpCodeOpLabel - Create a new label given the key */
/* Note, a negative key means that the label is part of wild card */
pcop = Safe_calloc(1,sizeof(pCodeOpLabel) );
pcop->type = PO_LABEL;
+ pcop->name = NULL;
if(key>0) {
sprintf(s,"_%05d_DS_",key);
- pcop->name = Safe_strdup(s);
- } else
- pcop->name = NULL;
+ if(s)
+ pcop->name = Safe_strdup(s);
+ }
+
((pCodeOpLabel *)pcop)->key = key;
return pcop;
}
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
pCodeOp *newpCodeOpLit(int lit)
{
char *s = buffer;
pCodeOp *pcop;
- _ALLOC(pcop,sizeof(pCodeOpLit) );
+ pcop = Safe_calloc(1,sizeof(pCodeOpLit) );
pcop->type = PO_LITERAL;
- sprintf(s,"0x%02x",lit);
- _ALLOC_ATOMIC(pcop->name,strlen(s)+1);
- strcpy(pcop->name,s);
+ pcop->name = NULL;
+ if(lit>=0) {
+ sprintf(s,"0x%02x",lit);
+ if(s)
+ pcop->name = Safe_strdup(s);
+ }
+
+
((pCodeOpLit *)pcop)->lit = lit;
return pcop;
}
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
pCodeOp *newpCodeOpWild(int id, pCodePeep *pcp, pCodeOp *subtype)
{
char *s = buffer;
return pcop;
}
-pCodeOp *newpCodeOpBit(char *s, int bit)
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+pCodeOp *newpCodeOpBit(char *s, int bit, int inBitSpace)
{
pCodeOp *pcop;
- _ALLOC(pcop,sizeof(pCodeOpBit) );
+ pcop = Safe_calloc(1,sizeof(pCodeOpBit) );
pcop->type = PO_BIT;
- pcop->name = Safe_strdup(s);
- PCOB(pcop)->bit = bit;
- if(bit>=0)
- PCOB(pcop)->inBitSpace = 1;
+ if(s)
+ pcop->name = Safe_strdup(s);
else
- PCOB(pcop)->inBitSpace = 0;
+ pcop->name = NULL;
+
+ PCOB(pcop)->bit = bit;
+ PCOB(pcop)->inBitSpace = inBitSpace;
+
+ return pcop;
+}
+
+pCodeOp *newpCodeOpReg(int rIdx)
+{
+ pCodeOp *pcop;
+
+ pcop = Safe_calloc(1,sizeof(pCodeOpReg) );
+
+ PCOR(pcop)->rIdx = rIdx;
+ PCOR(pcop)->r = pic14_regWithIdx(rIdx);
+ pcop->type = PCOR(pcop)->r->pc_type;
+
+ return pcop;
+}
+
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
+
+pCodeOp *newpCodeOp(char *name, PIC_OPTYPE type)
+{
+ pCodeOp *pcop;
+
+ switch(type) {
+ case PO_BIT:
+ pcop = newpCodeOpBit(name, -1,0);
+ break;
+
+ case PO_LITERAL:
+ pcop = newpCodeOpLit(-1);
+ break;
+
+ case PO_LABEL:
+ pcop = newpCodeOpLabel(-1);
+ break;
+
+ default:
+ pcop = Safe_calloc(1,sizeof(pCodeOp) );
+ pcop->type = type;
+ if(name)
+ pcop->name = Safe_strdup(name);
+ else
+ pcop->name = NULL;
+ }
return pcop;
}
/*-----------------------------------------------------------------*/
void addpCode2pBlock(pBlock *pb, pCode *pc)
{
-
- pb->pcTail->next = pc;
- pc->prev = pb->pcTail;
- pc->next = NULL;
- pc->pb = pb;
- pb->pcTail = pc;
+ if(!pb->pcHead) {
+ /* If this is the first pcode to be added to a block that
+ * was initialized with a NULL pcode, then go ahead and
+ * make this pcode the head and tail */
+ pb->pcHead = pb->pcTail = pc;
+ } else {
+ pb->pcTail->next = pc;
+ pc->prev = pb->pcTail;
+ pc->next = NULL;
+ pc->pb = pb;
+ pb->pcTail = pc;
+ }
}
/*-----------------------------------------------------------------*/
if(!the_pFile) {
/* First time called, we'll pass through here. */
- _ALLOC(the_pFile,sizeof(the_pFile));
+ _ALLOC(the_pFile,sizeof(pFile));
the_pFile->pbHead = the_pFile->pbTail = pb;
the_pFile->functions = NULL;
return;
/* */
/*-----------------------------------------------------------------*/
-static void unlink(pCode *pc)
+static void unlinkPC(pCode *pc)
{
- if(pc && pc->prev && pc->next) {
- pc->prev->next = pc->next;
- pc->next->prev = pc->prev;
+
+ if(pc) {
+
+ if(pc->prev)
+ pc->prev->next = pc->next;
+ if(pc->next)
+ pc->next->prev = pc->prev;
+
+ pc->prev = pc->next = NULL;
}
}
static void genericDestruct(pCode *pc)
{
- unlink(pc);
-
fprintf(stderr,"warning, calling default pCode destructor\n");
+
+ unlinkPC(pc);
+
free(pc);
+
}
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
void pBlockRegs(FILE *of, pBlock *pb)
{
r = setFirstItem(pb->registers);
while (r) {
- fprintf(of," %s\n",r->name);
r = setNextItem(pb->registers);
}
}
switch(pcc->pcop->type) {
case PO_FSR:
+ r = pic14_regWithIdx(PCOR(pcc->pcop)->rIdx);
+ return r->name;
+ break;
case PO_GPR_TEMP:
+ case PO_GPR_BIT:
r = pic14_regWithIdx(PCOR(pcc->pcop)->r->rIdx);
- fprintf(stderr,"getop: getting %s\nfrom:\n",r->name); //pcc->pcop->name);
+ //fprintf(stderr,"getop: getting %s\nfrom:\n",r->name); //pcc->pcop->name);
pBlockRegs(stderr,pcc->pc.pb);
return r->name;
fprintf(of,"pcodeopprint\n");
}
+char *pCode2str(char *str, int size, pCode *pc)
+{
+ char *s = str;
+
+ switch(pc->type) {
+
+ case PC_OPCODE:
+
+ SAFE_snprintf(&s,&size, "\t%s\t", PCI(pc)->mnemonic);
+
+ if( (PCI(pc)->num_ops >= 1) && (PCI(pc)->pcop)) {
+
+ if(PCI(pc)->bit_inst) {
+ if(PCI(pc)->pcop->type == PO_BIT) {
+ if( (((pCodeOpBit *)(PCI(pc)->pcop))->inBitSpace) )
+ SAFE_snprintf(&s,&size,"(%s >> 3), (%s & 7)",
+ PCI(pc)->pcop->name ,
+ PCI(pc)->pcop->name );
+ else
+ SAFE_snprintf(&s,&size,"%s,%d", get_op(PCI(pc)),
+ (((pCodeOpBit *)(PCI(pc)->pcop))->bit ));
+ } else if(PCI(pc)->pcop->type == PO_GPR_BIT) {
+ SAFE_snprintf(&s,&size,"%s,%d", get_op(PCI(pc)),PCORB(PCI(pc)->pcop)->bit);
+ }else
+ SAFE_snprintf(&s,&size,"%s,0 ; ?bug", get_op(PCI(pc)));
+ //PCI(pc)->pcop->t.bit );
+ } else {
+
+ if(PCI(pc)->pcop->type == PO_BIT) {
+ if( PCI(pc)->num_ops == 2)
+ SAFE_snprintf(&s,&size,"(%s >> 3),%c",get_op(PCI(pc)),((PCI(pc)->dest) ? 'F':'W'));
+ else
+ SAFE_snprintf(&s,&size,"(1 << (%s & 7))",get_op(PCI(pc)));
+
+ }else {
+ SAFE_snprintf(&s,&size,"%s",get_op(PCI(pc)));
+
+ if( PCI(pc)->num_ops == 2)
+ SAFE_snprintf(&s,&size,",%c", ( (PCI(pc)->dest) ? 'F':'W'));
+ }
+ }
+
+ }
+ break;
+
+ case PC_COMMENT:
+ /* assuming that comment ends with a \n */
+ SAFE_snprintf(&s,&size,";%s", ((pCodeComment *)pc)->comment);
+ break;
+
+ case PC_LABEL:
+ SAFE_snprintf(&s,&size,";label=%s, key=%d\n",PCL(pc)->label,PCL(pc)->key);
+ break;
+ case PC_FUNCTION:
+ SAFE_snprintf(&s,&size,";modname=%s,function=%s: id=%d\n",PCF(pc)->modname,PCF(pc)->fname);
+ break;
+ case PC_WILD:
+ SAFE_snprintf(&s,&size,";\tWild opcode: id=%d\n",PCW(pc)->id);
+ break;
+
+ }
+
+ return str;
+
+}
+
/*-----------------------------------------------------------------*/
/* genericPrint - the contents of a pCode to a file */
/*-----------------------------------------------------------------*/
// If the opcode has a label, print that first
{
pBranch *pbl = pc->label;
- while(pbl) {
+ while(pbl && pbl->pc) {
if(pbl->pc->type == PC_LABEL)
pCodePrintLabel(of, pbl->pc);
pbl = pbl->next;
}
}
- fprintf(of, "\t%s\t", PCI(pc)->mnemonic);
- if( (PCI(pc)->num_ops >= 1) && (PCI(pc)->pcop)) {
-
- if(PCI(pc)->bit_inst) {
- if(PCI(pc)->pcop->type == PO_BIT) {
- if( (((pCodeOpBit *)(PCI(pc)->pcop))->inBitSpace) )
- fprintf(of,"(%s >> 3), (%s & 7)",
- PCI(pc)->pcop->name ,
- PCI(pc)->pcop->name );
- else
- fprintf(of,"%s,%d", get_op(PCI(pc)), (((pCodeOpBit *)(PCI(pc)->pcop))->bit ));
- } else
- fprintf(of,"%s,0 ; ?bug", get_op(PCI(pc)));
- //PCI(pc)->pcop->t.bit );
- } else {
-
- if(PCI(pc)->pcop->type == PO_BIT) {
- if( PCI(pc)->num_ops == 2)
- fprintf(of,"(%s >> 3),%c",get_op(PCI(pc)),((PCI(pc)->dest) ? 'F':'W'));
- else
- fprintf(of,"(1 << (%s & 7))",get_op(PCI(pc)));
-/*
- if( PCI(pc)->num_ops == 2)
- fprintf(of,"(%s >> 3),%c",PCI(pc)->pcop->name,((PCI(pc)->dest) ? 'F':'W'));
- else
- fprintf(of,"(1 << (%s & 7))",PCI(pc)->pcop->name);
-*/
- }else {
- fprintf(of,"%s",get_op(PCI(pc)));
+ {
+ char str[256];
+
+ pCode2str(str, 256, pc);
- if( PCI(pc)->num_ops == 2)
- fprintf(of,",%c", ( (PCI(pc)->dest) ? 'F':'W'));
- }
- }
+ fprintf(of,"%s",str);
}
{
case PC_WILD:
fprintf(of,";\tWild opcode: id=%d\n",PCW(pc)->id);
+ if(pc->label)
+ pCodePrintLabel(of, pc->label->pc);
+
if(PCW(pc)->operand) {
fprintf(of,";\toperand ");
pCodeOpPrint(of,PCW(pc)->operand );
else if (PCL(pc)->key >=0)
fprintf(of,"_%05d_DS_:\n",PCL(pc)->key);
else
- fprintf(of,";wild card label\n");
+ fprintf(of,";wild card label: id=%d\n",-PCL(pc)->key);
}
/*-----------------------------------------------------------------*/
+/* unlinkpCodeFromBranch - Search for a label in a pBranch and */
+/* remove it if it is found. */
+/*-----------------------------------------------------------------*/
+static void unlinkpCodeFromBranch(pCode *pcl , pCode *pc)
+{
+ pBranch *b, *bprev;
+
+ bprev = NULL;
+ b = pcl->label;
+ while(b) {
+ if(b->pc == pc) {
+
+ /* Found a label */
+ if(bprev) {
+ bprev->next = b->next; /* Not first pCode in chain */
+ free(b);
+ } else {
+ pc->destruct(pc);
+ pcl->label = b->next; /* First pCode in chain */
+ free(b);
+ }
+ return; /* A label can't occur more than once */
+ }
+ bprev = b;
+ b = b->next;
+ }
+
+}
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
static pBranch * pBranchAppend(pBranch *h, pBranch *n)
{
pBranch *b;
} else
npc = npc->next;
}
+ /* reached the end of the pcode chain without finding
+ * an instruction we could link to. */
+ }
+ }
+}
+
+/*-----------------------------------------------------------------*/
+int compareLabel(pCode *pc, pCodeOpLabel *pcop_label)
+{
+ pBranch *pbr;
+
+ if(pc->type == PC_LABEL) {
+ if( ((pCodeLabel *)pc)->key == pcop_label->key)
+ return TRUE;
+ }
+ if(pc->type == PC_OPCODE) {
+ pbr = pc->label;
+ while(pbr) {
+ if(pbr->pc->type == PC_LABEL) {
+ if( ((pCodeLabel *)(pbr->pc))->key == pcop_label->key)
+ return TRUE;
+ }
+ pbr = pbr->next;
}
}
+
+ return FALSE;
}
/*-----------------------------------------------------------------*/
{
pBlock *pb;
pCode *pc;
- pBranch *pbr;
if(!the_pFile)
return NULL;
for(pb = the_pFile->pbHead; pb; pb = pb->next) {
- for(pc = pb->pcHead; pc; pc = pc->next) {
- if(pc->type == PC_LABEL) {
- if( ((pCodeLabel *)pc)->key == pcop_label->key)
- return pc;
- }
- if(pc->type == PC_OPCODE) {
- pbr = pc->label;
- while(pbr) {
- if(pbr->pc->type == PC_LABEL) {
- if( ((pCodeLabel *)(pbr->pc))->key == pcop_label->key)
- return pc;
- }
- pbr = pbr->next;
- }
- }
-
- }
+ for(pc = pb->pcHead; pc; pc = pc->next)
+ if(compareLabel(pc,pcop_label))
+ return pc;
+
}
fprintf(stderr,"Couldn't find label %s", pcop_label->pcop.name);
{
while(pc) {
- if(pc->type == PC_OPCODE)
+ if((pc->type == PC_OPCODE) || (pc->type == PC_WILD))
return pc;
pc = pc->next;
}
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
void AnalyzepBlock(pBlock *pb)
{
if(PCI(pc)->pcop && PCI(pc)->pcop->type == PO_GPR_TEMP) {
/* Loop through all of the registers declared so far in
- this block and see if we find this new there */
+ this block and see if we find this one there */
regs *r = setFirstItem(pb->registers);
}
}
+/*-----------------------------------------------------------------*/
+/*-----------------------------------------------------------------*/
int OptimizepBlock(pBlock *pb)
{
pCode *pc;
if(!pb || !peepOptimizing)
return 0;
- fprintf(stderr," Optimizing pBlock\n");
-
+ fprintf(stderr," Optimizing pBlock: %c\n",getpBlock_dbName(pb));
for(pc = pb->pcHead; pc; pc = pc->next)
matches += pCodePeepMatchRule(pc);
return matches;
}
+
+/*-----------------------------------------------------------------*/
+/* pBlockRemoveUnusedLabels - remove the pCode labels from the */
+/*-----------------------------------------------------------------*/
+pCode * findInstructionUsingLabel(pCodeLabel *pcl, pCode *pcs)
+{
+ pCode *pc;
+
+ for(pc = pcs; pc; pc = pc->next) {
+
+ if((pc->type == PC_OPCODE) &&
+ (PCI(pc)->pcop) &&
+ (PCI(pc)->pcop->type == PO_LABEL) &&
+ (PCOLAB(PCI(pc)->pcop)->key == pcl->key))
+ return pc;
+ }
+
+
+ return NULL;
+}
+
+/*-----------------------------------------------------------------*/
+/* pBlockRemoveUnusedLabels - remove the pCode labels from the */
+/* pCode chain if they're not used. */
+/*-----------------------------------------------------------------*/
+void pBlockRemoveUnusedLabels(pBlock *pb)
+{
+ pCode *pc; pCodeLabel *pcl;
+
+ if(!pb)
+ return;
+
+ for(pc = pb->pcHead; pc; pc = pc->next) {
+
+ if(pc->type == PC_LABEL)
+ pcl = PCL(pc);
+ else if (pc->label)
+ pcl = PCL(pc->label->pc);
+ else continue;
+
+ /* This pCode is a label, so search the pBlock to see if anyone
+ * refers to it */
+
+ if( (pcl->key>0) && (!findInstructionUsingLabel(pcl, pb->pcHead))) {
+ /* Couldn't find an instruction that refers to this label
+ * So, unlink the pCode label from it's pCode chain
+ * and destroy the label */
+
+ fprintf(stderr," !!! REMOVED A LABEL !!! key = %d\n", pcl->key);
+
+ if(pc->type == PC_LABEL) {
+ unlinkPC(pc);
+ pCodeLabelDestruct(pc);
+ } else {
+ unlinkpCodeFromBranch(pc, PCODE(pcl));
+ /*if(pc->label->next == NULL && pc->label->pc == NULL) {
+ free(pc->label);
+ }*/
+ }
+
+ }
+ }
+
+}
+
+
/*-----------------------------------------------------------------*/
/* pBlockMergeLabels - remove the pCode labels from the pCode */
/* chain and put them into pBranches that are */
if(!pb)
return;
+ /* First, Try to remove any unused labels */
+ //pBlockRemoveUnusedLabels(pb);
+
+ /* Now loop through the pBlock and merge the labels with the opcodes */
+
for(pc = pb->pcHead; pc; pc = pc->next) {
if(pc->type == PC_LABEL) {
+ fprintf(stderr,"Checking label key = %d\n",PCL(pc)->key);
if( !(pcnext = findNextInstruction(pc)) )
return; // Couldn't find an instruction associated with this label
// Unlink the pCode label from it's pCode chain
- if(pc->prev)
- pc->prev->next = pc->next;
- if(pc->next)
- pc->next->prev = pc->prev;
+ unlinkPC(pc);
+ fprintf(stderr,"Merged label key = %d\n",PCL(pc)->key);
// And link it into the instruction's pBranch labels. (Note, since
// it's possible to have multiple labels associated with one instruction
// we must provide a means to accomodate the additional labels. Thus
pbr->next = NULL;
pcnext->label = pBranchAppend(pcnext->label,pbr);
+ if(pcnext->prev)
+ pc = pcnext->prev;
+ else
+ pc = pcnext;
}
}
+ pBlockRemoveUnusedLabels(pb);
}
pCode *pc;
pBranch *pbr;
+ int i,changes;
+
if(!the_pFile)
return;
fprintf(stderr," Analyzing pCode");
- /* First, merge the labels with the instructions */
- for(pb = the_pFile->pbHead; pb; pb = pb->next) {
- if('*' == dbName || getpBlock_dbName(pb) == dbName) {
- pBlockMergeLabels(pb);
- AnalyzepBlock(pb);
+ changes = 0;
+ i = 0;
+ do {
+ /* First, merge the labels with the instructions */
+ for(pb = the_pFile->pbHead; pb; pb = pb->next) {
+ if('*' == dbName || getpBlock_dbName(pb) == dbName) {
+
+ fprintf(stderr," analyze and merging block %c\n",dbName);
+ pBlockMergeLabels(pb);
+ AnalyzepBlock(pb);
+ }
}
- }
- for(pb = the_pFile->pbHead; pb; pb = pb->next) {
- if('*' == dbName || getpBlock_dbName(pb) == dbName)
- OptimizepBlock(pb);
- }
+ for(pb = the_pFile->pbHead; pb; pb = pb->next) {
+ if('*' == dbName || getpBlock_dbName(pb) == dbName)
+ changes += OptimizepBlock(pb);
+ }
+
+ } while(changes && (i++ < MAX_PASSES));
/* Now build the call tree.
First we examine all of the pCodes for functions.
pCode *pc;
regs *r;
- fprintf(of,"***\n pBlock Stats\n***\n");
+ fprintf(of,";***\n; pBlock Stats\n;***\n");
// for now just print the first element of each set
pc = setFirstItem(pb->function_entries);
if(pc) {
- fprintf(of,"entry\n");
+ fprintf(of,";entry: ");
pc->print(of,pc);
}
pc = setFirstItem(pb->function_exits);
if(pc) {
- fprintf(of,"has an exit\n");
- pc->print(of,pc);
+ fprintf(of,";has an exit\n");
+ //pc->print(of,pc);
}
pc = setFirstItem(pb->function_calls);
if(pc) {
- fprintf(of,"functions called\n");
+ fprintf(of,";functions called:\n");
while(pc) {
- pc->print(of,pc);
+ if(pc->type == PC_OPCODE && PCI(pc)->op == POC_CALL) {
+ fprintf(of,"; %s\n",get_op(PCI(pc)));
+ }
pc = setNextItem(pb->function_calls);
}
}
if(r) {
int n = elementsInSet(pb->registers);
- fprintf(of,"%d compiler assigned register%c:\n",n, ( (n!=1) ? 's' : ' '));
+ fprintf(of,";%d compiler assigned register%c:\n",n, ( (n!=1) ? 's' : ' '));
while (r) {
- fprintf(of," %s\n",r->name);
+ fprintf(of,"; %s\n",r->name);
r = setNextItem(pb->registers);
}
}
pBlockStats(stderr,pb); // debug
+
+ // Mark the registers in this block as used.
+
+ MarkUsedRegisters(pb->registers);
if(registersInCallPath) {
/* registers were used in the functions this pBlock has called */
/* so now, we need to see if these collide with the ones we are */
r2 = setFirstItem(pb->registers);
- while(r2) {
+ while(r2 && (r1->type != REG_STK)) {
if(r2->rIdx == r1->rIdx) {
- newreg = pic14_findFreeReg();
+ newreg = pic14_findFreeReg(REG_GPR);
if(!newreg) {
r1->rIdx, newreg->rIdx);
r2->rIdx = newreg->rIdx;
//if(r2->name) free(r2->name);
- r2->name = Safe_strdup(newreg->name);
+ if(newreg->name)
+ r2->name = Safe_strdup(newreg->name);
+ else
+ r2->name = NULL;
newreg->isFree = 0;
newreg->wasUsed = 1;
}
/* Collisions have been resolved. Now free the registers in the call path */
r1 = setFirstItem(registersInCallPath);
while(r1) {
- newreg = pic14_regWithIdx(r1->rIdx);
- newreg->isFree = 1;
+ if(r1->type != REG_STK) {
+ newreg = pic14_regWithIdx(r1->rIdx);
+ newreg->isFree = 1;
+ }
r1 = setNextItem(registersInCallPath);
}
- } else
- MarkUsedRegisters(pb->registers);
+ }// else
+ // MarkUsedRegisters(pb->registers);
registers = unionSets(pb->registers, registersInCallPath, THROW_NONE);
r1->rIdx, newreg->rIdx);
r2->rIdx = newreg->rIdx;
//if(r2->name) free(r2->name);
- r2->name = Safe_strdup(newreg->name);
+ if(newreg->name)
+ r2->name = Safe_strdup(newreg->name);
+ else
+ r2->name = NULL;
newreg->isFree = 0;
newreg->wasUsed = 1;
}