static char *_pic16_keywords[] =
{
"at",
- "bit",
"code",
"critical",
"register",
"data",
"far",
- "idata",
"interrupt",
"near",
"pdata",
"reentrant",
"sfr",
- "sbit",
+ "sfr16",
"using",
- "xdata",
"_data",
"_code",
"_generic",
"_near",
- "_xdata",
"_pdata",
- "_idata",
"_naked",
+ "shadowregs",
+ "wparam",
+ "prodlp",
+ "prodhp",
+ "fsr0lp",
+ "fixed16x16",
+
+// "bit",
+// "idata",
+// "sbit",
+// "xdata",
+// "_xdata",
+// "_idata",
NULL
};
pic16_sectioninfo_t pic16_sectioninfo;
+int xinst=0;
+
extern char *pic16_processor_base_name(void);
void pic16_pCodeInitRegisters(void);
-void pic16_assignRegisters (eBBlock ** ebbs, int count);
+void pic16_assignRegisters (ebbIndex *);
static int regParmFlg = 0; /* determine if we can register a parameter */
/* for an unknowned reason. - EEP */
void pic16_emitDebuggerSymbol (char *);
-extern regs* newReg(short type, short pc_type, int rIdx, char *name, int size, int alias, operand *refop);
extern void pic16_emitConfigRegs(FILE *of);
extern void pic16_emitIDRegs(FILE *of);
}
static int
-_pic16_regparm (sym_link * l)
+_pic16_regparm (sym_link * l, bool reentrant)
{
/* force all parameters via SEND/RECEIVE */
if(0 /*pic16_options.ip_stack*/) {
set *sectSyms=NULL; /* list of symbols set in a specific section */
set *wparamList=NULL;
+#if 0
+/* This is an experimental code for #pragma inline
+ and is temporarily disabled for 2.5.0 release */
+set *asmInlineMap=NULL;
+#endif /* 0 */
+
+struct {
+ unsigned ignore: 1;
+ unsigned want_libc: 1;
+ unsigned want_libm: 1;
+ unsigned want_libio: 1;
+ unsigned want_libdebug: 1;
+} libflags = { 0, 0, 0, 0, 0 };
+
+
static int
_process_pragma(const char *sz)
{
static const char *WHITE = " \t\n";
static const char *WHITECOMMA = " \t\n,";
+ char *ptr = strtok((char *)sz, WHITE);
+
+ /* #pragma maxram [maxram] */
+ if (startsWith (ptr, "maxram")) {
+ char *maxRAM = strtok((char *)NULL, WHITE);
+
+ if (maxRAM != (char *)NULL) {
+ int maxRAMaddress;
+ value *maxRAMVal;
+
+ maxRAMVal = constVal(maxRAM);
+ maxRAMaddress = (int)floatFromVal(maxRAMVal);
+ pic16_setMaxRAM(maxRAMaddress);
+ }
+
+ return 0;
+ }
- char *ptr = strtok((char *)sz, WHITE);
+ /* #pragma stack [stack-position] [stack-len] */
+ if(startsWith(ptr, "stack")) {
+ char *stackPosS = strtok((char *)NULL, WHITE);
+ char *stackLenS = strtok((char *)NULL, WHITE);
+ value *stackPosVal;
+ value *stackLenVal;
+ regs *reg;
+ symbol *sym;
+
+ if (!stackPosS) {
+ fprintf (stderr, "%s:%d: #pragma stack [stack-pos] [stack-length] -- stack-position missing\n", filename, lineno-1);
+
+ return 0; /* considered an error */
+ }
- /* #pragma maxram [maxram] */
- if (startsWith (ptr, "maxram")) {
- char *maxRAM = strtok((char *)NULL, WHITE);
+ stackPosVal = constVal( stackPosS );
+ stackPos = (unsigned int)floatFromVal( stackPosVal );
- if (maxRAM != (char *)NULL) {
- int maxRAMaddress;
- value *maxRAMVal;
+ if(stackLenS) {
+ stackLenVal = constVal( stackLenS );
+ stackLen = (unsigned int)floatFromVal( stackLenVal );
+ }
- maxRAMVal = constVal(maxRAM);
- maxRAMaddress = (int)floatFromVal(maxRAMVal);
- pic16_setMaxRAM(maxRAMaddress);
- }
+ if(stackLen < 1) {
+ stackLen = 64;
+ fprintf(stderr, "%s:%d: warning: setting stack to default size %d (0x%04x)\n",
+ filename, lineno-1, stackLen, stackLen);
+ }
- return 0;
- }
-
- /* #pragma stack [stack-position] [stack-len] */
- if(startsWith(ptr, "stack")) {
- char *stackPosS = strtok((char *)NULL, WHITE);
- char *stackLenS = strtok((char *)NULL, WHITE);
- value *stackPosVal;
- value *stackLenVal;
- regs *reg;
- symbol *sym;
-
- stackPosVal = constVal( stackPosS );
- stackPos = (unsigned int)floatFromVal( stackPosVal );
+ /* check sanity of stack */
+ if ((stackPos >> 8) != ((stackPos+stackLen-1) >> 8)) {
+ fprintf (stderr, "%s:%u: warning: stack [0x%03X,0x%03X] crosses memory bank boundaries (not fully tested)\n",
+ filename,lineno-1, stackPos, stackPos+stackLen-1);
+ }
-
- if(stackLenS) {
- stackLenVal = constVal( stackLenS );
- stackLen = (unsigned int)floatFromVal( stackLenVal );
- }
+ if (pic16) {
+ if (stackPos < pic16->acsSplitOfs) {
+ fprintf (stderr, "%s:%u: warning: stack [0x%03X, 0x%03X] intersects with the access bank [0x000,0x%03x] -- this is highly discouraged!\n",
+ filename, lineno-1, stackPos, stackPos+stackLen-1, pic16->acsSplitOfs);
+ }
- if(stackLen < 1) {
- stackLen = 64;
- fprintf(stderr, "%s:%d: warning: setting stack to default size %d (0x%04x)\n",
- filename, lineno-1, stackLen, stackLen);
-
-// fprintf(stderr, "%s:%d setting stack to default size %d\n", __FILE__, __LINE__, stackLen);
- }
+ if (stackPos+stackLen > 0xF00 + pic16->acsSplitOfs) {
+ fprintf (stderr, "%s:%u: warning: stack [0x%03X,0x%03X] intersects with special function registers [0x%03X,0xFFF]-- this is highly discouraged!\n",
+ filename, lineno-1, stackPos, stackPos+stackLen-1, 0xF00 + pic16->acsSplitOfs);
+ }
-// fprintf(stderr, "Initializing stack pointer at 0x%x len 0x%x\n", stackPos, stackLen);
-
- reg=newReg(REG_SFR, PO_SFR_REGISTER, stackPos, "_stack", stackLen-1, 0, NULL);
- addSet(&pic16_fix_udata, reg);
-
- reg = newReg(REG_SFR, PO_SFR_REGISTER, stackPos + stackLen-1, "_stack_end", 1, 0, NULL);
- addSet(&pic16_fix_udata, reg);
+ if (stackPos+stackLen > pic16->RAMsize) {
+ fprintf (stderr, "%s:%u: error: stack [0x%03X,0x%03X] is placed outside available memory [0x000,0x%03X]!\n",
+ filename, lineno-1, stackPos, stackPos+stackLen-1, pic16->RAMsize-1);
+ exit(-1);
+ return 1; /* considered an error, but this reports "invalid pragma stack"... */
+ }
+ }
- sym = newSymbol("stack", 0);
- sprintf(sym->rname, "_%s", sym->name);
- addSet(&publics, sym);
+ reg=newReg(REG_SFR, PO_SFR_REGISTER, stackPos, "_stack", stackLen-1, 0, NULL);
+ addSet(&pic16_fix_udata, reg);
+
+ reg = newReg(REG_SFR, PO_SFR_REGISTER, stackPos + stackLen-1, "_stack_end", 1, 0, NULL);
+ addSet(&pic16_fix_udata, reg);
+
+ sym = newSymbol("stack", 0);
+ sprintf(sym->rname, "_%s", sym->name);
+ addSet(&publics, sym);
- sym = newSymbol("stack_end", 0);
- sprintf(sym->rname, "_%s", sym->name);
- addSet(&publics, sym);
-
- initsfpnt = 1; // force glue() to initialize stack/frame pointers */
+ sym = newSymbol("stack_end", 0);
+ sprintf(sym->rname, "_%s", sym->name);
+ addSet(&publics, sym);
+
+ initsfpnt = 1; // force glue() to initialize stack/frame pointers */
- return 0;
- }
-
- /* #pragma code [symbol] [location] */
- if(startsWith(ptr, "code")) {
- char *symname = strtok((char *)NULL, WHITE);
- char *location = strtok((char *)NULL, WHITE);
- absSym *absS;
- value *addr;
-
- absS = Safe_calloc(1, sizeof(absSym));
- sprintf(absS->name, "_%s", symname);
-
- addr = constVal( location );
- absS->address = (unsigned int)floatFromVal( addr );
+ return 0;
+ }
+
+ /* #pragma code [symbol] [location] */
+ if(startsWith(ptr, "code")) {
+ char *symname = strtok((char *)NULL, WHITE);
+ char *location = strtok((char *)NULL, WHITE);
+ absSym *absS;
+ value *addr;
+
+ if (!symname || !location) {
+ fprintf (stderr, "%s:%d: #pragma code [symbol] [location] -- symbol or location missing\n", filename, lineno-1);
+ exit (-1);
+ return 1; /* considered an error, but this reports "invalid pragma code"... */
+ }
- if((absS->address % 2) != 0) {
- absS->address--;
- fprintf(stderr, "%s:%d: warning: code memory locations should be word aligned, will locate to 0x%06x instead\n",
- filename, lineno-1, absS->address);
- }
+ absS = Safe_calloc(1, sizeof(absSym));
+ sprintf(absS->name, "_%s", symname);
+
+ addr = constVal( location );
+ absS->address = (unsigned int)floatFromVal( addr );
- addSet(&absSymSet, absS);
-// fprintf(stderr, "%s:%d symbol %s will be placed in location 0x%06x in code memory\n",
-// __FILE__, __LINE__, symname, absS->address);
+ if((absS->address % 2) != 0) {
+ absS->address--;
+ fprintf(stderr, "%s:%d: warning: code memory locations should be word aligned, will locate to 0x%06x instead\n",
+ filename, lineno-1, absS->address);
+ }
- return 0;
- }
+ addSet(&absSymSet, absS);
+// fprintf(stderr, "%s:%d symbol %s will be placed in location 0x%06x in code memory\n",
+// __FILE__, __LINE__, symname, absS->address);
- /* #pragma udata [section-name] [symbol] */
- if(startsWith(ptr, "udata")) {
- char *sectname = strtok((char *)NULL, WHITE);
- char *symname = strtok((char *)NULL, WHITE);
- symbol *nsym;
- sectSym *ssym;
- sectName *snam;
- int found=0;
-
- while(symname) {
- ssym = Safe_calloc(1, sizeof(sectSyms));
- ssym->name = Safe_calloc(1, strlen(symname)+2);
- sprintf(ssym->name, "_%s", symname);
- ssym->reg = NULL;
-
- addSet(§Syms, ssym);
-
- nsym = newSymbol(symname, 0);
- strcpy(nsym->rname, ssym->name);
- checkAddSym(&publics, nsym);
-
- found = 0;
- for(snam=setFirstItem(sectNames);snam;snam=setNextItem(sectNames)) {
- if(!strcmp(sectname, snam->name)){ found=1; break; }
- }
-
- if(!found) {
- snam = Safe_calloc(1, sizeof(sectNames));
- snam->name = Safe_strdup( sectname );
- snam->regsSet = NULL;
-
- addSet(§Names, snam);
- }
-
- ssym->section = snam;
-
-// fprintf(stderr, "%s:%d placing symbol %s at section %s (%p)\n", __FILE__, __LINE__,
-// ssym->name, snam->name, snam);
-
- symname = strtok((char *)NULL, WHITE);
- }
+ return 0;
+ }
- return 0;
- }
-
- if(startsWith(ptr, "wparam")) {
- char *fname = strtok((char *)NULL, WHITECOMMA);
-
- while(fname) {
- addSet(&wparamList, Safe_strdup(fname));
+ /* #pragma udata [section-name] [symbol] */
+ if(startsWith(ptr, "udata")) {
+ char *sectname = strtok((char *)NULL, WHITE);
+ char *symname = strtok((char *)NULL, WHITE);
+ symbol *nsym;
+ sectSym *ssym;
+ sectName *snam;
+ int found=0;
+
+ if (!symname || !sectname) {
+ fprintf (stderr, "%s:%d: #pragma udata [section-name] [symbol] -- section-name or symbol missing!\n", filename, lineno-1);
+ exit (-1);
+ return 1; /* considered an error, but this reports "invalid pragma code"... */
+ }
+
+ while(symname) {
+ ssym = Safe_calloc(1, sizeof(sectSym));
+ ssym->name = Safe_calloc(1, strlen(symname)+2);
+ sprintf(ssym->name, "%s%s", port->fun_prefix, symname);
+ ssym->reg = NULL;
+
+ addSet(§Syms, ssym);
+
+ nsym = newSymbol(symname, 0);
+ strcpy(nsym->rname, ssym->name);
+
+#if 0
+ checkAddSym(&publics, nsym);
+#endif
+
+ found = 0;
+ for(snam=setFirstItem(sectNames);snam;snam=setNextItem(sectNames)) {
+ if(!strcmp(sectname, snam->name)){ found=1; break; }
+ }
+
+ if(!found) {
+ snam = Safe_calloc(1, sizeof(sectName));
+ snam->name = Safe_strdup( sectname );
+ snam->regsSet = NULL;
+
+ addSet(§Names, snam);
+ }
+
+ ssym->section = snam;
+
+#if 0
+ fprintf(stderr, "%s:%d placing symbol %s at section %s (%p)\n", __FILE__, __LINE__,
+ ssym->name, snam->name, snam);
+#endif
+
+ symname = strtok((char *)NULL, WHITE);
+ }
+
+ return 0;
+ }
+
+ /* #pragma wparam function1[, function2[,...]] */
+ if(startsWith(ptr, "wparam")) {
+ char *fname = strtok((char *)NULL, WHITECOMMA);
+
+
+ while(fname) {
+ fprintf(stderr, "PIC16 Warning: `%s' wparam pragma is obsolete. use function attribute `wparam' instead.\n", fname);
+ addSet(&wparamList, Safe_strdup(fname));
-// debugf("passing with WREG to %s\n", fname);
- fname = strtok((char *)NULL, WHITECOMMA);
- }
+// debugf("passing with WREG to %s\n", fname);
+ fname = strtok((char *)NULL, WHITECOMMA);
+ }
- return 0;
+ return 0;
+ }
+
+ /* #pragma library library_module */
+ if(startsWith(ptr, "library")) {
+ char *lmodule = strtok((char *)NULL, WHITE);
+
+ if(lmodule) {
+ /* lmodule can be:
+ * c link the C library
+ * math link the math library
+ * io link the IO library
+ * debug link the debug libary
+ * anything else, will link as-is */
+
+ if(!strcmp(lmodule, "c"))libflags.want_libc = 1;
+ else if(!strcmp(lmodule, "math"))libflags.want_libm = 1;
+ else if(!strcmp(lmodule, "io"))libflags.want_libio = 1;
+ else if(!strcmp(lmodule, "debug"))libflags.want_libdebug = 1;
+ else if(!strcmp(lmodule, "ignore"))libflags.ignore = 1;
+ else {
+ if(!libflags.ignore) {
+ fprintf(stderr, "link library %s\n", lmodule);
+ addSetHead(&libFilesSet, lmodule);
}
-
+ }
+ }
+
+ return 0;
+ }
+
+#if 0
+ /* This is an experimental code for #pragma inline
+ and is temporarily disabled for 2.5.0 release */
+ if(startsWith(ptr, "inline")) {
+ char *tmp = strtok((char *)NULL, WHITECOMMA);
+
+ while(tmp) {
+ addSet(&asmInlineMap, Safe_strdup( tmp ));
+ tmp = strtok((char *)NULL, WHITECOMMA);
+ }
+
+ {
+ char *s;
+
+ for(s = setFirstItem(asmInlineMap); s ; s = setNextItem(asmInlineMap)) {
+ debugf("inline asm: `%s'\n", s);
+ }
+ }
+
+ return 0;
+ }
+#endif /* 0 */
+
return 1;
}
#define ALT_ASM "--asm="
#define ALT_LINK "--link="
-#define IVT_LOC "--ivt-loc"
+#define IVT_LOC "--ivt-loc="
#define NO_DEFLIBS "--nodefaultlibs"
#define MPLAB_COMPAT "--mplab-comp"
#define OFMSG_LRSUPPORT "--flr-support"
+#define OPTIMIZE_GOTO "--optimize-goto"
+#define OPTIMIZE_CMP "--optimize-cmp"
+#define OPTIMIZE_DF "--optimize-df"
+
char *alt_asm=NULL;
char *alt_link=NULL;
{ 0, NO_DEFLIBS, &pic16_options.nodefaultlibs, "do not link default libraries when linking"},
{ 0, "--pno-banksel", &pic16_options.no_banksel, "do not generate BANKSEL assembler directives"},
{ 0, OPT_BANKSEL, NULL, "set banksel optimization level (default=0 no)"},
- { 0, "--pomit-config-words", &pic16_options.omit_configw, "omit the generation of configuration words"},
- { 0, "--pomit-ivt", &pic16_options.omit_ivt, "omit the generation of the Interrupt Vector Table"},
- { 0, "--pleave-reset-vector",&pic16_options.leave_reset, "when omitting IVT leave RESET vector"},
+// { 0, "--pomit-config-words", &pic16_options.omit_configw, "omit the generation of configuration words"},
+// { 0, "--pomit-ivt", &pic16_options.omit_ivt, "omit the generation of the Interrupt Vector Table"},
+// { 0, "--pleave-reset-vector",&pic16_options.leave_reset, "when omitting IVT leave RESET vector"},
{ 0, STACK_MODEL, NULL, "use stack model 'small' (default) or 'large'"},
{ 0, "--debug-xtra", &pic16_debug_verbose, "show more debug info in assembly output"},
{ 0, USE_CRT, NULL, "use <crt-o> run-time initialization module"},
{ 0, "--no-crt", &pic16_options.no_crt, "do not link any default run-time initialization module"},
{ 0, "--gstack", &pic16_options.gstack, "trace stack pointer push/pop to overflow"},
-// { 0, OFMSG_LRSUPPORT, NULL, "use support functions for local register store/restore"},
+ { 0, OPTIMIZE_GOTO, NULL, "try to use (conditional) BRA instead of GOTO"},
+ { 0, OPTIMIZE_CMP, NULL, "try to optimize some compares"},
+ { 0, OPTIMIZE_DF, NULL, "thoroughly analyze data flow (memory and time intensive!)"},
+ { 0, "--num-func-alloc-regs", &pic16_options.CATregs, "dump number of temporary registers allocated for each function"},
+#if XINST
+ { 'y', "--extended", &xinst, "enable Extended Instruction Set/Literal Offset Addressing mode"},
+#endif
{ 0, NULL, NULL, NULL}
};
if(ISOPT(IVT_LOC)) {
pic16_options.ivt_loc = getIntArg(IVT_LOC, argv, i, *pargc);
+ fprintf(stderr, "%s:%d setting interrupt vector addresses 0x%x\n", __FILE__, __LINE__, pic16_options.ivt_loc);
return TRUE;
}
return TRUE;
}
#endif
-
+
+ if (ISOPT(OPTIMIZE_GOTO)) {
+ pic16_options.opt_flags |= OF_OPTIMIZE_GOTO;
+ return TRUE;
+ }
+
+ if(ISOPT(OPTIMIZE_CMP)) {
+ pic16_options.opt_flags |= OF_OPTIMIZE_CMP;
+ return TRUE;
+ }
+
+ if (ISOPT(OPTIMIZE_DF)) {
+ pic16_options.opt_flags |= OF_OPTIMIZE_DF;
+ return TRUE;
+ }
+
+
return FALSE;
}
setMainValue("mcu", pic16->name[2] );
addSet(&preArgvSet, Safe_strdup("-D{mcu}"));
+ setMainValue("mcu1", pic16->name[1] );
+ addSet(&preArgvSet, Safe_strdup("-D__{mcu1}"));
+
sprintf(pic16incDir, "%s%cpic16", INCLUDE_DIR_SUFFIX, DIR_SEPARATOR_CHAR);
sprintf(pic16libDir, "%s%cpic16", LIB_DIR_SUFFIX, DIR_SEPARATOR_CHAR);
char *msprintf(hTab *pvals, const char *pformat, ...);
int my_system(const char *cmd);
+/* forward declarations */
+extern const char *pic16_linkCmd[];
+extern const char *pic16_asmCmd[];
+extern set *asmOptionsSet;
+
/* custom function to link objects */
static void _pic16_linkEdit(void)
{
hTab *linkValues=NULL;
- char lfrm[256];
+ char lfrm[1024];
char *lcmd;
- char temp[128];
+ char temp[1024];
set *tSet=NULL;
int ret;
* {linker} {incdirs} {lflags} -o {outfile} {spec_ofiles} {ofiles} {libs}
*
*/
-
- sprintf(lfrm, "{linker} {incdirs} {lflags} -o {outfile} {user_ofile} {spec_ofiles} {ofiles} {libs}");
-
- shash_add(&linkValues, "linker", "gplink");
+ sprintf(lfrm, "{linker} {incdirs} {lflags} -o {outfile} {user_ofile} {ofiles} {spec_ofiles} {libs}");
+
+ shash_add(&linkValues, "linker", pic16_linkCmd[0]);
mergeSets(&tSet, libDirsSet);
mergeSets(&tSet, libPathsSet);
shash_add(&linkValues, "spec_ofiles", pic16_options.crt_name);
shash_add(&linkValues, "ofiles", joinStrSet(relFilesSet));
+
+ if(!libflags.ignore) {
+ if(libflags.want_libc)
+ addSet(&libFilesSet, Safe_strdup("libc18f.lib"));
+
+ if(libflags.want_libm)
+ addSet(&libFilesSet, Safe_strdup("libm18f.lib"));
+
+ if(libflags.want_libio) {
+ sprintf(temp, "libio%s.lib", pic16->name[1]); /* build libio18f452.lib name */
+ addSet(&libFilesSet, Safe_strdup(temp));
+ }
+
+ if(libflags.want_libdebug)
+ addSet(&libFilesSet, Safe_strdup("libdebug.lib"));
+ }
+
shash_add(&linkValues, "libs", joinStrSet(libFilesSet));
lcmd = msprintf(linkValues, lfrm);
}
-/* forward declarations */
-extern const char *pic16_linkCmd[];
-extern const char *pic16_asmCmd[];
-
static void
_pic16_finaliseOptions (void)
{
pic16_options.omit_ivt = 1;
pic16_options.leave_reset = 0;
}
+
+ if(options.model == MODEL_SMALL)
+ addSet(&asmOptionsSet, Safe_strdup("-DSDCC_MODEL_SMALL"));
+ else
+ if(options.model == MODEL_LARGE)
+ addSet(&asmOptionsSet, Safe_strdup("-DSDCC_MODEL_LARGE"));
+
+ {
+ char buf[128];
+
+ sprintf(buf, "-D%s -D__%s", pic16->name[2], pic16->name[1]);
+ *(strrchr(buf, 'f')) = 'F';
+ addSet(&asmOptionsSet, Safe_strdup( buf ));
+ }
+
+ if(STACK_MODEL_LARGE) {
+ addSet(&preArgvSet, Safe_strdup("-DSTACK_MODEL_LARGE"));
+ addSet(&asmOptionsSet, Safe_strdup("-DSTACK_MODEL_LARGE"));
+ } else {
+ addSet(&preArgvSet, Safe_strdup("-DSTACK_MODEL_SMALL"));
+ addSet(&asmOptionsSet, Safe_strdup("-DSTACK_MODEL_SMALL"));
+ }
}
pic16_options.no_crt = 0; /* use crt by default */
pic16_options.ip_stack = 1; /* set to 1 to enable ipop/ipush for stack */
pic16_options.gstack = 0;
+ pic16_options.debgen = 0;
+ pic16_options.CATregs = 0;
}
static const char *
* False to convert it to function call */
static bool _hasNativeMulFor (iCode *ic, sym_link *left, sym_link *right)
{
-// fprintf(stderr,"checking for native mult for %c (size: %d)\n", ic->op, getSize(OP_SYMBOL(IC_RESULT(ic))->type));
+ //fprintf(stderr,"checking for native mult for %c (size: %d)\n", ic->op, getSize(OP_SYMBOL(IC_RESULT(ic))->type));
+
+ /* Checks to enable native multiplication.
+ * PICs do not offer native division at all...
+ *
+ * Ideas:
+ * ( i) if result is just one byte, use native MUL
+ * (regardless of the operands)
+ * ( ii) if left and right are unsigned 8-bit operands,
+ * use native MUL
+ * (iii) if left or right is a literal in the range of [0..255)
+ * and the other is an unsigned byte, use native MUL
+ */
+ if (ic->op == '*')
+ {
+ int symL, symR, symRes, sizeL = 0, sizeR = 0, sizeRes = 0;
+
+ /* left/right are symbols? */
+ symL = IS_SYMOP(IC_LEFT(ic));
+ symR = IS_SYMOP(IC_RIGHT(ic));
+ symRes = IS_SYMOP(IC_RESULT(ic));
+
+ /* --> then determine their sizes */
+ sizeL = symL ? getSize(OP_SYM_TYPE(IC_LEFT(ic))) : 4;
+ sizeR = symR ? getSize(OP_SYM_TYPE(IC_RIGHT(ic))) : 4;
+ sizeRes = symRes ? getSize(OP_SYM_TYPE(IC_RESULT(ic))) : 4;
+
+ /* use native mult for `*: <?> x <?> --> {u8_t, s8_t}' */
+ if (sizeRes == 1) { return TRUE; }
+
+ /* use native mult for `u8_t x u8_t --> { u16_t, s16_t }' */
+ if (sizeL == 1 && symL && SPEC_USIGN(OP_SYM_TYPE(IC_LEFT(ic)))) {
+ sizeL = 1;
+ } else {
+ //printf( "%s: left too large (%u) / signed (%u)\n", __FUNCTION__, sizeL, symL && !SPEC_USIGN(OP_SYM_TYPE(IC_LEFT(ic))));
+ sizeL = 4;
+ }
+ if (sizeR == 1 && symR && SPEC_USIGN(OP_SYM_TYPE(IC_RIGHT(ic)))) {
+ sizeR = 1;
+ } else {
+ //printf( "%s: right too large (%u) / signed (%u)\n", __FUNCTION__, sizeR, symR && !SPEC_USIGN(OP_SYM_TYPE(IC_RIGHT(ic))));
+ sizeR = 4;
+ }
-#if 1
- /* multiplication is fixed */
- /* support mul for char/int/long */
- if((ic->op == '*')
- && (getSize(OP_SYMBOL(IC_LEFT(ic))->type ) < 2))return TRUE;
-#endif
+ /* also allow literals [0..256) for left/right operands */
+ if (IS_VALOP(IC_LEFT(ic)))
+ {
+ long l = (long)floatFromVal( OP_VALUE( IC_LEFT(ic) ) );
+ sizeL = 4;
+ //printf( "%s: val(left) = %ld\n", __FUNCTION__, l );
+ if (l >= 0 && l < 256)
+ {
+ sizeL = 1;
+ } else {
+ //printf( "%s: left value %ld outside [0..256)\n", __FUNCTION__, l );
+ }
+ }
+ if (IS_VALOP( IC_RIGHT(ic) ))
+ {
+ long l = (long)floatFromVal( OP_VALUE( IC_RIGHT(ic) ) );
+ sizeR = 4;
+ //printf( "%s: val(right) = %ld\n", __FUNCTION__, l );
+ if (l >= 0 && l < 256)
+ {
+ sizeR = 1;
+ } else {
+ //printf( "%s: right value %ld outside [0..256)\n", __FUNCTION__, l );
+ }
+ }
+
+ /* use native mult iff left and right are (unsigned) 8-bit operands */
+ if (sizeL == 1 && sizeR == 1) { return TRUE; }
+ }
-#if 0
- /* support div for char/int/long */
- if((getSize(OP_SYMBOL(IC_LEFT(ic))->type ) < 0)
- && (ic->op == '/'))return TRUE;
-#endif
-
return FALSE;
}
"CSEG (CODE)", // code
"DSEG (DATA)", // data
"ISEG (DATA)", // idata
- NULL, // pdata
+ "PSEG (DATA)", // pdata
"XSEG (XDATA)", // xdata
"BSEG (BIT)", // bit
"RSEG (DATA)", // reg
"GSINIT (CODE)", // static
"OSEG (OVR,DATA)", // overlay
"GSFINAL (CODE)", // post static
- "HOME (CODE)", // home
+ "HOME (CODE)", // home
NULL, // xidata
NULL, // xinit
+ "CONST (CODE)", // const_name - const data (code or not)
NULL, // default location for auto vars
NULL, // default location for global vars
1 // code is read only 1=yes
projects / fw / sdcc / blobdiff