"bit",
"code",
"critical",
+ "register",
"data",
"far",
"idata",
pic16_options_t pic16_options;
+extern set *includeDirsSet;
+extern set *dataDirsSet;
+extern set *libFilesSet;
+
/* Also defined in gen.h, but the #include is commented out */
/* 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 void
_pic16_init (void)
{
- asm_addTree (&asm_asxxxx_mapping);
- pic16_pCodeInitRegisters();
- maxInterrupts = 2;
-
- /* set pic16 port options to defaults */
- pic16_options.gen_banksel = 0;
- pic16_options.opt_banksel = 0;
- pic16_options.omit_configw = 0;
- pic16_options.omit_ivt = 0;
- pic16_options.leave_reset = 0;
- pic16_options.stack_model = 0; /* 0 for 'small', 1 for 'large' */
+ asm_addTree (&asm_asxxxx_mapping);
+ pic16_pCodeInitRegisters();
+ maxInterrupts = 2;
}
static void
-_pic16_reset_regparm ()
+_pic16_reset_regparm (void)
{
regParmFlg = 0;
}
static int
_pic16_regparm (sym_link * l)
{
- /* for this processor it is simple
- can pass only the first parameter in a register */
- //if (regParmFlg)
- // return 0;
-
- regParmFlg++;// = 1;
- return 1;
+ /* force all parameters via SEND/RECEIVE */
+ if(0 /*pic16_options.ip_stack*/) {
+ /* for this processor it is simple
+ * can pass only the first parameter in a register */
+ if(regParmFlg)return 0;
+ regParmFlg++;
+ return 1; //regParmFlg;
+ } else {
+ /* otherwise pass all arguments in registers via SEND/RECEIVE */
+ regParmFlg++;// = 1;
+ return regParmFlg;
+ }
}
* so glue() later emits code to initialize stack/frame pointers */
set *absSymSet;
+set *sectNames=NULL; /* list of section listed in pragma directives */
+set *sectSyms=NULL; /* list of symbols set in a specific section */
+
+
static int
_process_pragma(const char *sz)
{
- static const char *WHITE = " \t";
+ static const char *WHITE = " \t\n";
char *ptr = strtok((char *)sz, WHITE);
+ /* #pragma maxram [maxram] */
if (startsWith (ptr, "maxram")) {
char *maxRAM = strtok((char *)NULL, WHITE);
maxRAMaddress = (int)floatFromVal(maxRAMVal);
pic16_setMaxRAM(maxRAMaddress);
}
+
+ 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;
-// fprintf(stderr, "Initializing stack pointer to 0x%x\n", (int)floatFromVal(constVal(stackPos)));
stackPosVal = constVal( stackPosS );
stackPos = (unsigned int)floatFromVal( stackPosVal );
- reg=newReg(REG_SFR, PO_SFR_REGISTER, stackPos, "stack", 1, 0, NULL);
+
+ if(stackLenS) {
+ stackLenVal = constVal( stackLenS );
+ stackLen = (unsigned int)floatFromVal( stackLenVal );
+ }
+
+ 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);
+ }
+
+// 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);
+
+ 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 */
return 0;
}
+ /* #pragma code [symbol] [location] */
if(startsWith(ptr, "code")) {
char *symname = strtok((char *)NULL, WHITE);
char *location = strtok((char *)NULL, WHITE);
value *addr;
absS = Safe_calloc(1, sizeof(absSym));
- absS->name = Safe_strdup( symname );
+ sprintf(absS->name, "_%s", symname);
+
addr = constVal( location );
absS->address = (unsigned int)floatFromVal( addr );
+ 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);
+ }
+
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);
+// fprintf(stderr, "%s:%d symbol %s will be placed in location 0x%06x in code memory\n",
+// __FILE__, __LINE__, symname, absS->address);
return 0;
- }
+ }
+
+ /* #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 1;
}
#define REP_UDATA "--preplace-udata-with="
-#define REP_UDATAACS "--preplace-udata-acs-with="
-#define REP_UDATAOVR "--preplace-udata-ovr-with="
-#define REP_UDATASHR "--preplace-udata-sht-with="
-
-#define NAME_CODE "--psection-code-name="
-#define NAME_IDATA "--psection-idata-name="
-#define NAME_UDATA "--psection-udata-name="
-#define NAME_UDATAACS "--psection-udata-acs-name="
-#define NAME_UDATAOVR "--psection-udata-ovr-name="
-#define NAME_UDATASHR "--psection-udata-shr-name="
-
-#define ADDR_CODE "--psection-code-addr="
-#define ADDR_IDATA "--psection-idata-addr="
-#define ADDR_UDATA "--psection-udata-addr="
-#define ADDR_UDATAACS "--psection-udata-acs-addr="
-#define ADDR_UDATAOVR "--psection-udata-ovr-addr="
-#define ADDR_UDATASHR "--psection-udata-shr-addr="
#define STACK_MODEL "--pstack-model="
#define OPT_BANKSEL "--obanksel="
+#define ALT_ASM "--asm="
+#define ALT_LINK "--link="
+#define IVT_LOC "--ivt-loc"
+#define NO_DEFLIBS "--nodefaultlibs"
+#define MPLAB_COMPAT "--mplab-comp"
+
+#define NL_OPT "--nl="
+#define USE_CRT "--use-crt="
+
+char *alt_asm=NULL;
+char *alt_link=NULL;
+
+int pic16_mplab_comp=0;
extern int pic16_debug_verbose;
extern int pic16_ralloc_debug;
extern int pic16_pcode_verbose;
+int pic16_fstack=0;
+int pic16_enable_peeps=0;
+int pic16_nl=0; /* 0 for LF, 1 for CRLF */
+
OPTION pic16_optionsTable[]= {
- { 0, "--pgen-banksel", &pic16_options.gen_banksel, "generate BANKSEL assembler directives"},
+ { 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, STACK_MODEL, NULL, "use stack model 'small' (default) or 'large'"},
+ { 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, "--debug-ralloc", &pic16_ralloc_debug, "dump register allocator debug file *.d"},
{ 0, REP_UDATA, NULL, "Place udata variables at another section: udata_acs, udata_ovr, udata_shr"},
-#if 0
- /* these may not be in any use -- VR */
- { 0, AT_UDATAACS, NULL, "Emit udata_acs variables at another section"},
- { 0, AT_UDATAOVR, NULL, "Emit udata_ovr variables at another section"},
- { 0, AT_UDATASHR, NULL, "Emit udata_shr variables at another section"},
-#endif
-
-#if 0
- /* commented out for the time being -- VR */
- { 0, NAME_CODE, NULL, "Set code section name[,address]"},
- { 0, NAME_IDATA, NULL, "Set idata section name[,address]"},
- { 0, NAME_UDATA, NULL, "Set udata section name[,address]"},
- { 0, NAME_UDATAACS, NULL, "Set udata_acs section name[,address]"},
- { 0, NAME_UDATAOVR, NULL, "Set udata_ovr section name[,address]"},
- { 0, NAME_UDATASHR, NULL, "Set udata_shr section name[,address]"},
-
- { 0, ADDR_CODE, NULL, "Set code section address"},
- { 0, ADDR_IDATA, NULL, "Set idata section address"},
- { 0, ADDR_UDATA, NULL, "Set udata section address"},
- { 0, ADDR_UDATAACS, NULL, "Set udata_acs section address"},
- { 0, ADDR_UDATAOVR, NULL, "Set udata_ovr section address"},
- { 0, ADDR_UDATASHR, NULL, "Set udata_shr section address"},
-#endif
-
+ { 0, ALT_ASM, NULL, "Use alternative assembler"},
+ { 0, ALT_LINK, NULL, "Use alternative linker"},
+
+ { 0, "--denable-peeps", &pic16_enable_peeps, "explicit enable of peepholes"},
+ { 0, IVT_LOC, NULL, "<nnnn> interrupt vector table location"},
+ { 0, "--calltree", &pic16_options.dumpcalltree, "dump call tree in .calltree file"},
+ { 0, MPLAB_COMPAT, &pic16_mplab_comp, "enable compatibility mode for MPLAB utilities (MPASM/MPLINK)"},
+ { 0, "--fstack", &pic16_fstack, "enable stack optimizations"},
+ { 0, NL_OPT, NULL, "new line, \"lf\" or \"crlf\""},
+ { 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, NULL, NULL, NULL}
};
_pic16_parseOptions (int *pargc, char **argv, int *i)
{
int j=0;
-// set *tset;
char *stkmodel;
/* TODO: allow port-specific command line options to specify
if(ISOPT(STACK_MODEL)) {
stkmodel = getStringArg(STACK_MODEL, argv, i, *pargc);
- if(STRCASECMP(stkmodel, "small"))pic16_options.stack_model = 0;
- else if(STRCASECMP(stkmodel, "large"))pic16_options.stack_model = 1;
+ if(!STRCASECMP(stkmodel, "small"))pic16_options.stack_model = 0;
+ else if(!STRCASECMP(stkmodel, "large"))pic16_options.stack_model = 1;
else {
fprintf(stderr, "Unknown stack model: %s", stkmodel);
exit(-1);
return TRUE;
}
-/*
- if(ISOPT(AT_UDATAACS)) {
- pic16_sectioninfo.at_udataacs = Safe_strdup( getStringArg(AT_UDATAACS, argv, i, *pargc));
- return TRUE;
- }
-
- if(ISOPT(AT_UDATAOVR)) {
- pic16_sectioninfo.at_udataovr = Safe_strdup( getStringArg(AT_UDATAOVR, argv, i, *pargc));
+ if(ISOPT(ALT_ASM)) {
+ alt_asm = Safe_strdup(getStringArg(ALT_ASM, argv, i, *pargc));
return TRUE;
}
- if(ISOPT(AT_UDATASHR)) {
- pic16_sectioninfo.at_udatashr = Safe_strdup( getStringArg(AT_UDATASHR, argv, i, *pargc));
+ if(ISOPT(ALT_LINK)) {
+ alt_link = Safe_strdup(getStringArg(ALT_LINK, argv, i, *pargc));
return TRUE;
}
-*/
-#if 0
- if(ISOPT(ADDR_CODE)) {
- pic16_sectioninfo.addr_code = getIntArg(ADDR_CODE, argv, i, *pargc);
- return TRUE;
- }
-
- if(ISOPT(ADDR_IDATA)) {
- pic16_sectioninfo.addr_idata = getIntArg(ADDR_IDATA, argv, i, *pargc);
- return TRUE;
- }
-
- if(ISOPT(ADDR_UDATA)) {
- pic16_sectioninfo.addr_udata = getIntArg(ADDR_UDATA, argv, i, *pargc);
- return TRUE;
- }
-
- if(ISOPT(ADDR_UDATAACS)) {
- pic16_sectioninfo.addr_udataacs = getIntArg(ADDR_UDATAACS, argv, i, *pargc);
- return TRUE;
- }
-
- if(ISOPT(ADDR_UDATAOVR)) {
- pic16_sectioninfo.addr_udataovr = getIntArg(ADDR_UDATAOVR, argv, i, *pargc);
+ if(ISOPT(IVT_LOC)) {
+ pic16_options.ivt_loc = getIntArg(IVT_LOC, argv, i, *pargc);
return TRUE;
}
- if(ISOPT(ADDR_UDATASHR)) {
- pic16_sectioninfo.addr_udatashr = getIntArg(ADDR_UDATASHR, argv, i, *pargc);
- return TRUE;
- }
+ if(ISOPT(NL_OPT)) {
+ char *tmp;
+
+ tmp = Safe_strdup( getStringArg(NL_OPT, argv, i, *pargc) );
+ if(!STRCASECMP(tmp, "lf"))pic16_nl = 0;
+ else if(!STRCASECMP(tmp, "crlf"))pic16_nl = 1;
+ else {
+ fprintf(stderr, "invalid termination character id\n");
+ exit(-1);
+ }
+ return TRUE;
+ }
+
+ if(ISOPT(USE_CRT)) {
+ pic16_options.no_crt = 0;
+ pic16_options.crt_name = Safe_strdup( getStringArg(USE_CRT, argv, i, *pargc) );
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
- tset = newSet();
-
- if(ISOPT(NAME_CODE)) {
- setParseWithComma(&tset, getStringArg(NAME_CODE, argv, i, *pargc));
- if(elementsInSet(tset) > 0)
- pic16_sectioninfo.name_code = Safe_strdup( (char *)indexSet(tset, 0));
- if(elementsInSet(tset) > 1)
- pic16_sectioninfo.addr_code = atoi( (char *)indexSet(tset, 1));
- return TRUE;
- }
+extern set *userIncDirsSet;
- if(ISOPT(NAME_IDATA)) {
- setParseWithComma(&tset, getStringArg(NAME_IDATA, argv, i, *pargc));
- if(elementsInSet(tset) > 0)
- pic16_sectioninfo.name_idata = Safe_strdup( (char *)indexSet(tset, 0));
- if(elementsInSet(tset) > 1)
- pic16_sectioninfo.addr_idata = atoi( (char *)indexSet(tset, 1));
- return TRUE;
- }
+static void _pic16_initPaths(void)
+{
+ char pic16incDir[512];
+ char pic16libDir[512];
+ set *pic16incDirsSet=NULL;
+ set *pic16libDirsSet=NULL;
+ char devlib[512];
- if(ISOPT(NAME_UDATA)) {
- setParseWithComma(&tset, getStringArg(NAME_UDATA, argv, i, *pargc));
- if(elementsInSet(tset) > 0)
- pic16_sectioninfo.name_udata = Safe_strdup( (char *)indexSet(tset, 0));
- if(elementsInSet(tset) > 1)
- pic16_sectioninfo.addr_udata = atoi( (char *)indexSet(tset, 1));
- return TRUE;
- }
+ setMainValue("mcu", pic16->name[2] );
+ addSet(&preArgvSet, Safe_strdup("-D{mcu}"));
- if(ISOPT(NAME_UDATAACS)) {
- setParseWithComma(&tset, getStringArg(NAME_UDATAACS, argv, i, *pargc));
- if(elementsInSet(tset) > 0)
- pic16_sectioninfo.name_udataacs = Safe_strdup( (char *)indexSet(tset, 0));
- if(elementsInSet(tset) > 1)
- pic16_sectioninfo.addr_udataacs = atoi( (char *)indexSet(tset, 1));
- return TRUE;
- }
+ sprintf(pic16incDir, "%s%cpic16", INCLUDE_DIR_SUFFIX, DIR_SEPARATOR_CHAR);
+ sprintf(pic16libDir, "%s%cpic16", LIB_DIR_SUFFIX, DIR_SEPARATOR_CHAR);
- if(ISOPT(NAME_UDATAOVR)) {
- setParseWithComma(&tset, getStringArg(NAME_UDATAOVR, argv, i, *pargc));
- if(elementsInSet(tset) > 0)
- pic16_sectioninfo.name_udataovr = Safe_strdup( (char *)indexSet(tset, 0));
- if(elementsInSet(tset) > 1)
- pic16_sectioninfo.addr_udataovr = atoi( (char *)indexSet(tset, 1));
- return TRUE;
- }
- if(ISOPT(NAME_UDATASHR)) {
- setParseWithComma(&tset, getStringArg(NAME_UDATASHR, argv, i, *pargc));
- if(elementsInSet(tset) > 0)
- pic16_sectioninfo.name_udatashr = Safe_strdup( (char *)indexSet(tset, 0));
- if(elementsInSet(tset) > 1)
- pic16_sectioninfo.addr_udatashr = atoi( (char *)indexSet(tset, 1));
- return TRUE;
- }
+ if(!options.nostdinc) {
+ /* setup pic16 include directory */
+ pic16incDirsSet = appendStrSet(dataDirsSet, NULL, pic16incDir);
+ includeDirsSet = pic16incDirsSet;
+// mergeSets(&includeDirsSet, pic16incDirsSet);
+ }
+ /* pic16 port should not search to the SDCC standard include directories,
+ * so add here the deleted include dirs that user has issued in command line */
+ mergeSets(&pic16incDirsSet, userIncDirsSet);
+
+ if(!options.nostdlib) {
+ /* setup pic16 library directory */
+ pic16libDirsSet = appendStrSet(dataDirsSet, NULL, pic16libDir);
+ libDirsSet = pic16libDirsSet;
+// mergeSets(&libDirsSet, pic16libDirsSet);
+ }
- deleteSet( &tset );
-#endif
+ if(!pic16_options.nodefaultlibs) {
+ /* now add the library for the device */
+ sprintf(devlib, "%s.lib", pic16->name[2]);
+ addSet(&libFilesSet, Safe_strdup(devlib));
- return FALSE;
+ /* add the internal SDCC library */
+ addSet(&libFilesSet, Safe_strdup( "libsdcc.lib" ));
+ }
+}
+
+extern set *linkOptionsSet;
+char *msprintf(hTab *pvals, const char *pformat, ...);
+int my_system(const char *cmd);
+
+/* custom function to link objects */
+static void _pic16_linkEdit(void)
+{
+ hTab *linkValues=NULL;
+ char lfrm[256];
+ char *lcmd;
+ char temp[128];
+ set *tSet=NULL;
+ int ret;
+
+ /*
+ * link command format:
+ * {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");
+
+ mergeSets(&tSet, libDirsSet);
+ mergeSets(&tSet, libPathsSet);
+
+ shash_add(&linkValues, "incdirs", joinStrSet( appendStrSet(tSet, "-I\"", "\"")));
+ shash_add(&linkValues, "lflags", joinStrSet(linkOptionsSet));
+
+ shash_add(&linkValues, "outfile", dstFileName);
+
+ if(fullSrcFileName) {
+ sprintf(temp, "%s.o", dstFileName);
+// addSetHead(&relFilesSet, Safe_strdup(temp));
+ shash_add(&linkValues, "user_ofile", temp);
+ }
+
+ if(!pic16_options.no_crt)
+ shash_add(&linkValues, "spec_ofiles", pic16_options.crt_name);
+
+ shash_add(&linkValues, "ofiles", joinStrSet(relFilesSet));
+ shash_add(&linkValues, "libs", joinStrSet(libFilesSet));
+
+ lcmd = msprintf(linkValues, lfrm);
+
+ ret = my_system( lcmd );
+
+ Safe_free( lcmd );
+
+ if(ret)
+ exit(1);
}
-extern set *includeDirsSet;
-extern set *dataDirsSet;
-extern set *libFilesSet;
+
+/* forward declarations */
+extern const char *pic16_linkCmd[];
+extern const char *pic16_asmCmd[];
static void
_pic16_finaliseOptions (void)
{
- char pic16incDir[512];
- char pic16libDir[512];
- set *pic16incDirsSet;
- set *pic16libDirsSet;
- char devlib[512];
+ port->mem.default_local_map = data;
+ port->mem.default_globl_map = data;
- port->mem.default_local_map = data;
- port->mem.default_globl_map = data;
+ /* peepholes are disabled for the time being */
+ options.nopeep = 1;
- options.all_callee_saves = 1; // always callee saves
- options.float_rent = 1;
- options.intlong_rent = 1;
-
- setMainValue("mcu", pic16->name[2] );
- addSet(&preArgvSet, Safe_strdup("-D{mcu}"));
+ /* explicit enable peepholes for testing */
+ if(pic16_enable_peeps)
+ options.nopeep = 0;
- sprintf(pic16incDir, "%s/pic16", INCLUDE_DIR_SUFFIX);
- sprintf(pic16libDir, "%s/pic16", LIB_DIR_SUFFIX);
+ options.all_callee_saves = 1; // always callee saves
- if(!options.nostdinc) {
- /* setup pic16 include directory */
- pic16incDirsSet = appendStrSet(dataDirsSet, NULL, pic16incDir);
- mergeSets(&includeDirsSet, pic16incDirsSet);
- }
+#if 0
+ options.float_rent = 1;
+ options.intlong_rent = 1;
+#endif
- if(!options.nostdlib) {
- /* setup pic16 library directory */
- pic16libDirsSet = appendStrSet(dataDirsSet, NULL, pic16libDir);
- mergeSets(&libDirsSet, pic16libDirsSet);
+
+ if(alt_asm && strlen(alt_asm))
+ pic16_asmCmd[0] = alt_asm;
- /* now add the library for the device */
- sprintf(devlib, "%s.lib", pic16->name[2]);
- addSet(&libFilesSet, Safe_strdup(devlib));
- }
+ if(alt_link && strlen(alt_link))
+ pic16_linkCmd[0] = alt_link;
+
+ if(!pic16_options.no_crt) {
+ pic16_options.omit_ivt = 1;
+ pic16_options.leave_reset = 0;
+ }
}
-/* all the rest is commented ifdef'd out */
#if 0
- /* Hack-o-matic: if we are using the flat24 model,
- * adjust pointer sizes.
- */
- if (options.model == MODEL_FLAT24)
- {
-
- fprintf (stderr, "*** WARNING: you should use the '-mds390' option "
- "for DS80C390 support. This code generator is "
- "badly out of date and probably broken.\n");
-
- port->s.fptr_size = 3;
- port->s.gptr_size = 4;
- port->stack.isr_overhead++; /* Will save dpx on ISR entry. */
-#if 1
- port->stack.call_overhead++; /* This acounts for the extra byte
- * of return addres on the stack.
- * but is ugly. There must be a
- * better way.
- */
-#endif
- fReturn = fReturn390;
- fReturnSize = 5;
- }
-
if (options.model == MODEL_LARGE)
{
port->mem.default_local_map = xdata;
static void
_pic16_setDefaultOptions (void)
{
- /* initialize to defaults section locations, names and addresses */
- pic16_sectioninfo.at_udata = "udata";
- pic16_sectioninfo.at_udataacs = "udata_acs";
- pic16_sectioninfo.at_udataovr = "udata_ovr";
- pic16_sectioninfo.at_udatashr = "udata_shr";
-
- /* initialize to nothing, so let linker decide about their names */
- pic16_sectioninfo.name_code =
- pic16_sectioninfo.name_idata =
- pic16_sectioninfo.name_udata =
- pic16_sectioninfo.name_udataacs =
- pic16_sectioninfo.name_udataovr =
- pic16_sectioninfo.name_udatashr = "";
-
- /* initialize to -1, so let linker decide about their address */
- pic16_sectioninfo.addr_code =
- pic16_sectioninfo.addr_idata =
- pic16_sectioninfo.addr_udata =
- pic16_sectioninfo.addr_udataacs =
- pic16_sectioninfo.addr_udataovr =
- pic16_sectioninfo.addr_udatashr = -1;
+ options.stackAuto = 0; /* implicit declaration */
+ /* port is not capable yet to allocate separate registers
+ * dedicated for passing certain parameters */
+
+ /* initialize to defaults section locations, names and addresses */
+ pic16_sectioninfo.at_udata = "udata";
+
+ /* set pic16 port options to defaults */
+ pic16_options.no_banksel = 0;
+ pic16_options.opt_banksel = 0;
+ pic16_options.omit_configw = 0;
+ pic16_options.omit_ivt = 0;
+ pic16_options.leave_reset = 0;
+ pic16_options.stack_model = 0; /* 0 for 'small', 1 for 'large' */
+ pic16_options.ivt_loc = 0x000000;
+ pic16_options.nodefaultlibs = 0;
+ pic16_options.dumpcalltree = 0;
+ pic16_options.crt_name = "crt0i.o"; /* the default crt to link */
+ pic16_options.no_crt = 0; /* use crt by default */
+ pic16_options.ip_stack = 1; /* set to 1 to enable ipop/ipush for stack */
}
static const char *
fprintf (of, "\tlist\tp=%s\n",&name[1]);
if(!pic16_options.omit_configw) {
- fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300001, pic16_getConfigWord(0x300001));
- fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300002, pic16_getConfigWord(0x300002));
- fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300003, pic16_getConfigWord(0x300003));
- fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300005, pic16_getConfigWord(0x300005));
- fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300006, pic16_getConfigWord(0x300006));
- fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300008, pic16_getConfigWord(0x300008));
- fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300009, pic16_getConfigWord(0x300009));
- fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x30000a, pic16_getConfigWord(0x30000a));
- fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x30000b, pic16_getConfigWord(0x30000b));
- fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x30000c, pic16_getConfigWord(0x30000c));
- fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x30000d, pic16_getConfigWord(0x30000d));
+ pic16_emitConfigRegs(of);
+ fprintf(of, "\n");
+ pic16_emitIDRegs(of);
}
fprintf (of, "\tradix dec\n");
static int
_pic16_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts)
{
+#if 1
/* PIC18F family has only two interrupts, the high and the low
* priority interrupts, which reside at 0x0008 and 0x0018 respectively - VR */
fprintf(of, "\tretfie\n");
}
}
-
+#endif
return TRUE;
}
* False to convert it to function call */
static bool _hasNativeMulFor (iCode *ic, sym_link *left, sym_link *right)
{
- // sym_link *test = NULL;
- // value *val;
+// 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\n");
+#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
- /* support mul for char/int */
- if((getSize(OP_SYMBOL(IC_RESULT(ic))->type ) <= 2)
- && (ic->op == '*'))return TRUE;
-
- /* support div for char */
- if((getSize(OP_SYMBOL(IC_RESULT(ic))->type ) < 2)
+#if 0
+ /* support div for char/int/long */
+ if((getSize(OP_SYMBOL(IC_LEFT(ic))->type ) < 0)
&& (ic->op == '/'))return TRUE;
+#endif
return FALSE;
+}
+
#if 0
- if ( ic->op != '*')
- {
- return FALSE;
- }
+/* Do CSE estimation */
+static bool cseCostEstimation (iCode *ic, iCode *pdic)
+{
+// operand *result = IC_RESULT(ic);
+// sym_link *result_type = operandType(result);
- return TRUE;
-/*
- if ( IS_LITERAL (left))
- {
- fprintf(stderr,"left is lit\n");
- test = left;
- val = OP_VALUE (IC_LEFT (ic));
- }
- else if ( IS_LITERAL (right))
- {
- fprintf(stderr,"right is lit\n");
- test = left;
- val = OP_VALUE (IC_RIGHT (ic));
- }
- else
- {
- fprintf(stderr,"oops, neither is lit so no\n");
- return FALSE;
- }
- if ( getSize (test) <= 2)
- {
- fprintf(stderr,"yep\n");
- return TRUE;
- }
- fprintf(stderr,"nope\n");
+ /* VR -- this is an adhoc. Put here after conversation
+ * with Erik Epetrich */
- return FALSE;
-*/
+ if(ic->op == '<'
+ || ic->op == '>'
+ || ic->op == EQ_OP) {
+
+ fprintf(stderr, "%d %s\n", __LINE__, __FUNCTION__);
+ return 0;
+ }
+
+#if 0
+ /* if it is a pointer then return ok for now */
+ if (IC_RESULT(ic) && IS_PTR(result_type)) return 1;
+
+ /* if bitwise | add & subtract then no since mcs51 is pretty good at it
+ so we will cse only if they are local (i.e. both ic & pdic belong to
+ the same basic block */
+ if (IS_BITWISE_OP(ic) || ic->op == '+' || ic->op == '-') {
+ /* then if they are the same Basic block then ok */
+ if (ic->eBBlockNum == pdic->eBBlockNum) return 1;
+ else return 0;
+ }
#endif
+ /* for others it is cheaper to do the cse */
+ return 1;
}
+#endif
+
/* Indicate which extended bit operations this port supports */
static bool
return 0;
}
-/** $1 is always the basename.
+/** $1 is the input object file (PIC16 specific) // >>always the basename<<.
$2 is always the output file.
$3 -L path and -l libraries
$l is the list of extra options that should be there somewhere...
MUST be terminated with a NULL.
*/
-static const char *_linkCmd[] =
+const char *pic16_linkCmd[] =
{
- "gplink", "$3", "\"$1.o\"", "-o $1", "$l", NULL
+ "gplink", "$l", "-o \"$2\"", "\"$1\"","$3", NULL
};
$l is the list of extra options that should be there somewhere...
MUST be terminated with a NULL.
*/
-static const char *_asmCmd[] =
+const char *pic16_asmCmd[] =
{
- "gpasm", "$l", "$3", "-c", "\"$1.asm\"", NULL
+ "gpasm", "$l", "$3", "-c", "\"$1.asm\"", "-o \"$2\"", NULL
};
MODEL_SMALL
},
{
- _asmCmd, /* assembler command and arguments */
+ pic16_asmCmd, /* assembler command and arguments */
NULL, /* alternate macro based form */
- NULL, /* arguments for debug mode */
+ "-g", /* arguments for debug mode */
NULL, /* arguments for normal mode */
0, /* print externs as global */
".asm", /* assembler file extension */
NULL /* no do_assemble function */
},
{
- _linkCmd, /* linker command and arguments */
+ NULL, // pic16_linkCmd, /* linker command and arguments */
NULL, /* alternate macro based form */
- NULL, /* no do_link function */
+ _pic16_linkEdit, //NULL, /* no do_link function */
".o", /* extension for object files */
0 /* no need for linker file */
},
4, /* long */
2, /* ptr */
3, /* fptr, far pointers (see Microchip) */
- 2, /* gptr */
+ 3, /* gptr */
1, /* bit */
4, /* float */
4 /* max */
"CSEG (CODE)", // code
"DSEG (DATA)", // data
"ISEG (DATA)", // idata
+ NULL, // pdata
"XSEG (XDATA)", // xdata
"BSEG (BIT)", // bit
"RSEG (DATA)", // reg
},
/* pic16 has an 8 bit mul */
{
- 1, -1
+ 0, -1
},
{
pic16_emitDebuggerSymbol
},
+ {
+ 255/3, /* maxCount */
+ 3, /* sizeofElement */
+ /* The rest of these costs are bogus. They approximate */
+ /* the behavior of src/SDCCicode.c 1.207 and earlier. */
+ {4,4,4}, /* sizeofMatchJump[] */
+ {0,0,0}, /* sizeofRangeCompare[] */
+ 0, /* sizeofSubtract */
+ 3, /* sizeofDispatch */
+ },
"_",
_pic16_init,
_pic16_parseOptions,
pic16_optionsTable,
+ _pic16_initPaths,
_pic16_finaliseOptions,
_pic16_setDefaultOptions,
pic16_assignRegisters,
1, /* transform != to !(a == b) */
0, /* leave == */
FALSE, /* No array initializer support. */
- 0, /* no CSE cost estimation yet */
+ 0, //cseCostEstimation, /* !!!no CSE cost estimation yet */
NULL, /* no builtin functions */
GPOINTER, /* treat unqualified pointers as "generic" pointers */
1, /* reset labelKey to 1 */
projects / fw / sdcc / blobdiff