X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fpic16%2Fmain.c;h=f298a0ea528ed714586f6730dfb77395b2977501;hb=d2da99feec099aa224e1db53bc5a1ed42ed51ec9;hp=44f4c13dcb0aa0e00a9a2ae0c4cbbab40152635f;hpb=a20bdd65ab5d25b38eaace299accab49179e26b3;p=fw%2Fsdcc diff --git a/src/pic16/main.c b/src/pic16/main.c index 44f4c13d..f298a0ea 100644 --- a/src/pic16/main.c +++ b/src/pic16/main.c @@ -30,6 +30,7 @@ #include "device.h" #include "SDCCutil.h" #include "glue.h" +#include "pcode.h" //#include "gen.h" @@ -45,6 +46,7 @@ static char *_pic16_keywords[] = "bit", "code", "critical", + "register", "data", "far", "idata", @@ -81,26 +83,30 @@ static int regParmFlg = 0; /* determine if we can register a parameter */ 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.enable_stack = 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; } @@ -108,25 +114,37 @@ _pic16_reset_regparm () 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; + } } +int initsfpnt=0; /* set to 1 if source provides a pragma for stack + * 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); @@ -138,19 +156,58 @@ _process_pragma(const char *sz) 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 ); + + 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); @@ -158,55 +215,107 @@ _process_pragma(const char *sz) 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, "--penable-stack", &pic16_options.enable_stack, "enable the use of stack"}, - { 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"}, @@ -214,30 +323,17 @@ OPTION pic16_optionsTable[]= { { 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, " 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 run-time initialization module"}, + { 0, "--no-crt", &pic16_options.no_crt, "do not link any default run-time initialization module"}, { 0, NULL, NULL, NULL} }; @@ -251,8 +347,8 @@ static bool _pic16_parseOptions (int *pargc, char **argv, int *i) { int j=0; -// set *tset; - + char *stkmodel; + /* TODO: allow port-specific command line options to specify * segment names here. */ @@ -267,13 +363,12 @@ _pic16_parseOptions (int *pargc, char **argv, int *i) if(ISOPT(STACK_MODEL)) { - switch(*getStringArg(STACK_MODEL, argv, i, *pargc)) { - case 's': pic16_options.stack_model = 0; break; - case 'l': pic16_options.stack_model = 1; break; - - default: - fprintf(stderr, "Unknown stack model"); - exit(-1); + 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; + else { + fprintf(stderr, "Unknown stack model: %s", stkmodel); + exit(-1); } return TRUE; } @@ -288,155 +383,182 @@ _pic16_parseOptions (int *pargc, char **argv, int *i) 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); + if(ISOPT(IVT_LOC)) { + pic16_options.ivt_loc = getIntArg(IVT_LOC, argv, i, *pargc); return TRUE; } - if(ISOPT(ADDR_UDATAOVR)) { - pic16_sectioninfo.addr_udataovr = getIntArg(ADDR_UDATAOVR, 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" )); + } } -static void -_pic16_finaliseOptions (void) +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) { - port->mem.default_local_map = data; - port->mem.default_globl_map = data; + 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); - options.all_callee_saves = 1; // always callee saves + if(fullSrcFileName) { + sprintf(temp, "%s.o", dstFileName); +// addSetHead(&relFilesSet, Safe_strdup(temp)); + shash_add(&linkValues, "user_ofile", temp); + } - setMainValue("mcu", pic16_processor_base_name() ); - addSet(&preArgvSet, Safe_strdup("-DMCU={mcu}")); + 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); } -/* 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) - { +/* forward declarations */ +extern const char *pic16_linkCmd[]; +extern const char *pic16_asmCmd[]; - fprintf (stderr, "*** WARNING: you should use the '-mds390' option " - "for DS80C390 support. This code generator is " - "badly out of date and probably broken.\n"); +static void +_pic16_finaliseOptions (void) +{ + port->mem.default_local_map = data; + port->mem.default_globl_map = data; - 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. - */ + /* peepholes are disabled for the time being */ + options.nopeep = 1; + + /* explicit enable peepholes for testing */ + if(pic16_enable_peeps) + options.nopeep = 0; + + options.all_callee_saves = 1; // always callee saves + +#if 0 + options.float_rent = 1; + options.intlong_rent = 1; #endif - fReturn = fReturn390; - fReturnSize = 5; + + + if(alt_asm && strlen(alt_asm)) + pic16_asmCmd[0] = alt_asm; + + 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; } +} + +#if 0 if (options.model == MODEL_LARGE) { port->mem.default_local_map = xdata; @@ -472,27 +594,26 @@ _pic16_finaliseOptions (void) 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 * @@ -527,17 +648,9 @@ _pic16_genAssemblerPreamble (FILE * of) 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"); @@ -547,6 +660,7 @@ _pic16_genAssemblerPreamble (FILE * of) 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 */ @@ -575,53 +689,71 @@ _pic16_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts) fprintf(of, "\tretfie\n"); } } - +#endif return TRUE; } -static bool -_hasNativeMulFor (iCode *ic, sym_link *left, sym_link *right) +/* return True if the port can handle the type, + * 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 - if ( ic->op != '*') - { - return FALSE; - } +#if 0 + /* support div for char/int/long */ + if((getSize(OP_SYMBOL(IC_LEFT(ic))->type ) < 0) + && (ic->op == '/'))return TRUE; +#endif + + return FALSE; +} - 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; +#if 0 +/* Do CSE estimation */ +static bool cseCostEstimation (iCode *ic, iCode *pdic) +{ +// operand *result = IC_RESULT(ic); +// sym_link *result_type = operandType(result); + + + /* VR -- this is an adhoc. Put here after conversation + * with Erik Epetrich */ + + 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; } - fprintf(stderr,"nope\n"); +#endif - return FALSE; -*/ + /* for others it is cheaper to do the cse */ + return 1; } +#endif + /* Indicate which extended bit operations this port supports */ static bool @@ -649,24 +781,28 @@ oclsExpense (struct memmap *oclass) 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 varies + $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", "\"$1.o\"", "-o $1", "$l", NULL + "gplink", "$l", "-o \"$2\"", "\"$1\"","$3", NULL }; -/* Sigh. This really is not good. For now, I recommend: - * sdcc -S -mpic16 file.c - * the -S option does not compile or link - */ -static const char *_asmCmd[] = + + +/** $1 is always the basename. + $2 is always the output file. + $3 varies (nothing currently) + $l is the list of extra options that should be there somewhere... + MUST be terminated with a NULL. +*/ +const char *pic16_asmCmd[] = { - "gpasm", "$l", "-c", "\"$1.asm\"", NULL + "gpasm", "$l", "$3", "-c", "\"$1.asm\"", "-o \"$2\"", NULL }; @@ -684,18 +820,18 @@ PORT pic16_port = 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 */ }, @@ -710,7 +846,7 @@ PORT pic16_port = 4, /* long */ 2, /* ptr */ 3, /* fptr, far pointers (see Microchip) */ - 2, /* gptr */ + 3, /* gptr */ 1, /* bit */ 4, /* float */ 4 /* max */ @@ -721,6 +857,7 @@ PORT pic16_port = "CSEG (CODE)", // code "DSEG (DATA)", // data "ISEG (DATA)", // idata + NULL, // pdata "XSEG (XDATA)", // xdata "BSEG (BIT)", // bit "RSEG (DATA)", // reg @@ -749,12 +886,26 @@ PORT pic16_port = }, /* 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, @@ -764,6 +915,7 @@ PORT pic16_port = NULL, /* no genAssemblerEnd */ _pic16_genIVT, NULL, // _pic16_genXINIT + NULL, /* genInitStartup */ _pic16_reset_regparm, _pic16_regparm, _process_pragma, /* process a pragma */ @@ -780,7 +932,7 @@ PORT pic16_port = 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 */