X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fpic%2Fmain.c;h=40a130b351bffe7386a6723d433737e9d67d0922;hb=d7b30120ae115e8929d57e25038ca76dde13974e;hp=d88ae7e2f77ff209f9cd037bad85552790cda3f3;hpb=affc5e817550e87639314a8c251b2921724415db;p=fw%2Fsdcc diff --git a/src/pic/main.c b/src/pic/main.c index d88ae7e2..40a130b3 100644 --- a/src/pic/main.c +++ b/src/pic/main.c @@ -7,142 +7,220 @@ #include "common.h" #include "main.h" #include "ralloc.h" +#include "device.h" +#include "SDCCutil.h" +#include "SDCCmacro.h" +#include "MySystem.h" +#include "glue.h" +#include //#include "gen.h" static char _defaultRules[] = { #include "peeph.rul" + "" }; -/* list of key words used by msc51 */ +/* list of key words used by pic14 */ static char *_pic14_keywords[] = { - "at", - "bit", - "code", - "critical", - "data", - "far", - "idata", - "interrupt", - "near", - "pdata", - "reentrant", - "sfr", - "sbit", - "using", - "xdata", - "_data", - "_code", - "_generic", - "_near", - "_xdata", - "_pdata", - "_idata", - NULL + "at", + //"bit", + "code", + "critical", + "data", + "far", + "idata", + "interrupt", + "near", + "pdata", + "reentrant", + "sfr", + //"sbit", + "using", + "xdata", + "_data", + "_code", + "_generic", + "_near", + "_xdata", + "_pdata", + "_idata", + NULL +}; + +pic14_options_t pic14_options; + +#define ARG_STACKLOC "--stack-loc" +#define ARG_STACKSIZ "--stack-size" + +extern int debug_verbose; /* from pcode.c */ +static OPTION _pic14_poptions[] = { + { 0 , "--debug-xtra", &debug_verbose, "show more debug info in assembly output" }, + { 0 , "--no-pcode-opt", &pic14_options.disable_df, "disable (slightly faulty) optimization on pCode" }, + { 0 , ARG_STACKLOC, NULL, "sets the lowest address of the argument passing stack" }, + { 0 , ARG_STACKSIZ, NULL, "sets the size if the argument passing stack (default: 16, minimum: 4)" }, + { 0 , NULL, NULL, NULL } }; void pCodeInitRegisters(void); -void pic14_assignRegisters (eBBlock ** ebbs, int count); +void pic14_assignRegisters (ebbIndex *); + +/* Also defined in gen.h, but the #include is commented out */ +/* for an unknowned reason. - EEP */ +void pic14_emitDebuggerSymbol (char *); static int regParmFlg = 0; /* determine if we can register a parameter */ static void _pic14_init (void) { - asm_addTree (&asm_asxxxx_mapping); - pCodeInitRegisters(); + asm_addTree (&asm_asxxxx_mapping); + memset (&pic14_options, 0, sizeof (pic14_options)); } static void -_pic14_reset_regparm () +_pic14_reset_regparm (void) { - regParmFlg = 0; + regParmFlg = 0; } static int -_pic14_regparm (sym_link * l) +_pic14_regparm (sym_link * l, bool reentrant) { - /* for this processor it is simple - can pass only the first parameter in a register */ - //if (regParmFlg) - // return 0; - - regParmFlg++;// = 1; - return 1; +/* for this processor it is simple + can pass only the first parameter in a register */ + //if (regParmFlg) + // return 0; + + regParmFlg++;// = 1; + return 1; } +extern char *udata_section_name; + static bool _pic14_parseOptions (int *pargc, char **argv, int *i) { - /* TODO: allow port-specific command line options to specify - * segment names here. - */ - return FALSE; + char buf[128]; + + /* TODO: allow port-specific command line options to specify + * segment names here. + */ + + /* This is a temporary hack, to solve problems with some processors + * that do not have udata section. It will be changed when a more + * robust solution is figured out -- VR 27-11-2003 FIXME + */ + strcpy(buf, "--udata-section-name"); + if(!strncmp(buf, argv[ *i ], strlen(buf))) { + if(strlen(argv[ *i ]) <= strlen(buf)+1) { + fprintf(stderr, "WARNING: no `%s' entered\n", buf+2); + exit(EXIT_FAILURE); + } else { + udata_section_name = strdup( strchr(argv[*i], '=') + 1 ); + } + return 1; + } + + return FALSE; } +extern set *dataDirsSet; +extern set *includeDirsSet; +/* pic14 port uses include/pic and lib/pic instead of + * include/pic14 and lib/pic14 as indicated by SDCCmain.c's + * setIncludePaths routine. */ static void -_pic14_finaliseOptions (void) +_pic14_initPaths (void) { + char *p; + char *p2=NULL; + set *tempSet=NULL; - port->mem.default_local_map = data; - port->mem.default_globl_map = data; -#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"); + if (options.nostdinc) + return; - 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; - } + tempSet = appendStrSet(dataDirsSet, NULL, INCLUDE_DIR_SUFFIX DIR_SEPARATOR_STRING "pic"); + mergeSets(&includeDirsSet, tempSet); - if (options.model == MODEL_LARGE) - { - port->mem.default_local_map = xdata; - port->mem.default_globl_map = xdata; - } - else + if ((p = getenv(SDCC_INCLUDE_NAME)) != NULL) + { + addSetHead(&includeDirsSet, p); + p2=Safe_alloc(strlen(p)+strlen(DIR_SEPARATOR_STRING)+strlen("pic")+1); + if(p2!=NULL) { - port->mem.default_local_map = data; - port->mem.default_globl_map = data; + strcpy(p2, p); + strcat(p2, DIR_SEPARATOR_STRING); + strcat(p2, "pic"); + addSetHead(&includeDirsSet, p2); } + } +} - if (options.stack10bit) - { - if (options.model != MODEL_FLAT24) +static void +_pic14_finaliseOptions (void) +{ + pCodeInitRegisters(); + + port->mem.default_local_map = data; + port->mem.default_globl_map = data; +#if 0 + /* Hack-o-matic: if we are using the flat24 model, + * adjust pointer sizes. + */ + if (options.model == MODEL_FLAT24) { - fprintf (stderr, - "*** warning: 10 bit stack mode is only supported in flat24 model.\n"); - fprintf (stderr, "\t10 bit stack mode disabled.\n"); - options.stack10bit = 0; + + 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; } - else + + if (options.model == MODEL_LARGE) { - /* Fixup the memory map for the stack; it is now in - * far space and requires a FPOINTER to access it. - */ - istack->fmap = 1; - istack->ptrType = FPOINTER; + port->mem.default_local_map = xdata; + port->mem.default_globl_map = xdata; + } + else + { + port->mem.default_local_map = data; + port->mem.default_globl_map = data; + } + + if (options.stack10bit) + { + if (options.model != MODEL_FLAT24) + { + fprintf (stderr, + "*** warning: 10 bit stack mode is only supported in flat24 model.\n"); + fprintf (stderr, "\t10 bit stack mode disabled.\n"); + options.stack10bit = 0; + } + else + { + /* Fixup the memory map for the stack; it is now in + * far space and requires a FPOINTER to access it. + */ + istack->fmap = 1; + istack->ptrType = FPOINTER; + } } - } #endif } @@ -154,155 +232,349 @@ _pic14_setDefaultOptions (void) static const char * _pic14_getRegName (struct regs *reg) { - if (reg) - return reg->name; - return "err"; + if (reg) + return reg->name; + return "err"; } +extern char *processor_base_name(void); + static void _pic14_genAssemblerPreamble (FILE * of) { - fprintf (of, "\tlist\tp=16f877\n"); - fprintf (of, "\t__config _wdt_off\n"); - fprintf (of, "\ninclude \"p16f877.inc\"\n"); + char * name = processor_base_name(); + + if(!name) { + + name = "16f877"; + fprintf(stderr,"WARNING: No Pic has been selected, defaulting to %s\n",name); + } + + fprintf (of, "\tlist\tp=%s\n",name); + fprintf (of, "\tradix dec\n"); + fprintf (of, "\tinclude \"p%s.inc\"\n",name); } /* Generate interrupt vector table. */ static int _pic14_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts) { - int i; - - if (options.model != MODEL_FLAT24) - { - /* Let the default code handle it. */ - return FALSE; - } + int i; + + if (options.model != MODEL_FLAT24) + { + /* Let the default code handle it. */ + return FALSE; + } + + fprintf (of, "\t;ajmp\t__sdcc_gsinit_startup\n"); + + /* now for the other interrupts */ + for (i = 0; i < maxInterrupts; i++) + { + if (interrupts[i]) + { + fprintf (of, "\t;ljmp\t%s\n\t.ds\t4\n", interrupts[i]->rname); + } + else + { + fprintf (of, "\t;reti\n\t.ds\t7\n"); + } + } + + return TRUE; +} - fprintf (of, "\t;ajmp\t__sdcc_gsinit_startup\n"); +static bool +_hasNativeMulFor (iCode *ic, sym_link *left, sym_link *right) +{ +/* +sym_link *test = NULL; +value *val; + */ + + //fprintf(stderr,"checking for native mult\n"); + + if ( ic->op != '*') + { + return FALSE; + } + + /* multiply chars in-place */ + if (getSize(left) == 1 && getSize(right) == 1) + return TRUE; + + /* use library functions for more complex maths */ + return FALSE; - /* now for the other interrupts */ - for (i = 0; i < maxInterrupts; i++) - { - if (interrupts[i]) + /* + if ( IS_LITERAL (left)) { - fprintf (of, "\t;ljmp\t%s\n\t.ds\t4\n", interrupts[i]->rname); + fprintf(stderr,"left is lit\n"); + test = left; + val = OP_VALUE (IC_LEFT (ic)); } - else + else if ( IS_LITERAL (right)) { - fprintf (of, "\t;reti\n\t.ds\t7\n"); + 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"); + + return FALSE; + */ +} + +/* Indicate which extended bit operations this port supports */ +static bool +hasExtBitOp (int op, int size) +{ + if (op == RRC + || op == RLC + /* || op == GETHBIT */ /* GETHBIT doesn't look complete for PIC */ + ) + return TRUE; + else + return FALSE; +} + +/* Indicate the expense of an access to an output storage class */ +static int +oclsExpense (struct memmap *oclass) +{ + /* The IN_FARSPACE test is compatible with historical behaviour, */ + /* but I don't think it is applicable to PIC. If so, please feel */ + /* free to remove this test -- EEP */ + if (IN_FARSPACE(oclass)) + return 1; - return TRUE; + return 0; } /** $1 is always the basename. - $2 is always the output file. - $3 varies - $l is the list of extra options that should be there somewhere... - MUST be terminated with a NULL. +$2 is always the output file. +$3 varies +$l is the list of extra options that should be there somewhere... +MUST be terminated with a NULL. */ static const char *_linkCmd[] = { - "aslink", "-nf", "$1", NULL + "gplink", "$l", "-w", "-r", "-o \"$2\"", "\"$1\"", "$3", NULL }; static const char *_asmCmd[] = { - "gpasm", NULL, NULL, NULL - + "gpasm", "$l", "-c", "\"$1.asm\"", NULL + }; +extern set *libFilesSet; +extern set *libDirsSet; +extern set *libPathsSet; +extern set *includeDirsSet; +extern set *userIncDirsSet; +extern set *dataDirsSetSet; +extern set *relFilesSet; +extern set *linkOptionsSet; + +static void _pic14_do_link (void) +{ + hTab *linkValues=NULL; + char lfrm[256]; + char *lcmd; + char temp[128]; + set *tSet=NULL; + int ret; + char * procName; + + /* + * link command format: + * {linker} {incdirs} {lflags} -o {outfile} {spec_ofiles} {ofiles} {libs} + * + */ + + sprintf(lfrm, "{linker} {incdirs} {sysincdirs} {lflags} -w -r -o {outfile} {user_ofile} {spec_ofiles} {ofiles} {libs}"); + + shash_add(&linkValues, "linker", "gplink"); + + /* LIBRARY SEARCH DIRS */ + mergeSets(&tSet, libPathsSet); + mergeSets(&tSet, libDirsSet); + shash_add(&linkValues, "incdirs", joinStrSet(appendStrSet(tSet, "-I\"", "\""))); + + SNPRINTF (&temp[0], 128, "%cpic\"", DIR_SEPARATOR_CHAR); + joinStrSet(appendStrSet(libDirsSet, "-I\"", &temp[0])); + shash_add(&linkValues, "sysincdirs", joinStrSet(appendStrSet(libDirsSet, "-I\"", &temp[0]))); + + shash_add(&linkValues, "lflags", joinStrSet(linkOptionsSet)); + + shash_add(&linkValues, "outfile", fullDstFileName ? fullDstFileName : dstFileName); + + if(fullSrcFileName) { + sprintf(temp, "%s.o", fullDstFileName ? fullDstFileName : dstFileName ); + shash_add(&linkValues, "user_ofile", temp); + } + + shash_add(&linkValues, "ofiles", joinStrSet(relFilesSet)); + + /* LIBRARIES */ + procName = processor_base_name(); + if (!procName) { + procName = "16f877"; + } + + addSet(&libFilesSet, "libsdcc.lib"); + SNPRINTF(&temp[0], 128, "pic%s.lib", procName); + addSet(&libFilesSet, temp); + shash_add(&linkValues, "libs", joinStrSet(libFilesSet)); + + lcmd = msprintf(linkValues, lfrm); + + ret = my_system( lcmd ); + + Safe_free( lcmd ); + + if(ret) + exit(1); +} + /* Globals */ PORT pic_port = { - TARGET_ID_PIC, - "pic14", - "MCU pic", /* Target name */ - { - TRUE, /* Emit glue around main */ - MODEL_SMALL | MODEL_LARGE | MODEL_FLAT24, - MODEL_SMALL - }, - { - _asmCmd, - NULL, - NULL, - NULL, - //"-plosgffc", /* Options with debug */ - //"-plosgff", /* Options without debug */ - 0, - ".asm" - }, - { - _linkCmd, - NULL, - NULL, - ".rel" - }, - { - _defaultRules - }, - { - /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */ - 1, 2, 2, 4, 1, 2, 1, 1, 4, 4 - /* TSD - I changed the size of gptr from 3 to 1. However, it should be - 2 so that we can accomodate the PIC's with 4 register banks (like the - 16f877) - */ - }, - { - "XSEG (XDATA)", - "STACK (DATA)", - "CSEG (CODE)", - "DSEG (DATA)", - "ISEG (DATA)", - "XSEG (XDATA)", - "BSEG (BIT)", - "RSEG (DATA)", - "GSINIT (CODE)", - "OSEG (OVR,DATA)", - "GSFINAL (CODE)", - "HOME (CODE)", - NULL, // xidata - NULL, // xinit - NULL, - NULL, - 1 - }, - { - +1, 1, 4, 1, 1, 0 - }, - /* pic14 has an 8 bit mul */ - { - 1, -1 - }, - "_", - _pic14_init, - _pic14_parseOptions, - _pic14_finaliseOptions, - _pic14_setDefaultOptions, - pic14_assignRegisters, - _pic14_getRegName, - _pic14_keywords, - _pic14_genAssemblerPreamble, - _pic14_genIVT, - NULL, // _pic14_genXINIT - _pic14_reset_regparm, - _pic14_regparm, - NULL, - NULL, - NULL, - FALSE, - 0, /* leave lt */ - 0, /* leave gt */ - 1, /* transform <= to ! > */ - 1, /* transform >= to ! < */ - 1, /* transform != to !(a == b) */ - 0, /* leave == */ - FALSE, /* No array initializer support. */ - 0, /* no CSE cost estimation yet */ - NULL, /* no builtin functions */ - PORT_MAGIC + TARGET_ID_PIC, + "pic14", + "MCU pic", /* Target name */ + "", /* Processor */ + { + picglue, + TRUE, /* Emit glue around main */ + MODEL_SMALL | MODEL_LARGE | MODEL_FLAT24, + MODEL_SMALL + }, + { + _asmCmd, + NULL, + NULL, + NULL, + //"-plosgffc", /* Options with debug */ + //"-plosgff", /* Options without debug */ + 0, + ".asm", + NULL /* no do_assemble function */ + }, + { + _linkCmd, + NULL, + _pic14_do_link, /* own do link function */ + ".o", + 0 + }, + { + _defaultRules + }, + { + /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */ + 1, 2, 2, 4, 2, 2, 3, 1, 4, 4 + /* TSD - I changed the size of gptr from 3 to 1. However, it should be + 2 so that we can accomodate the PIC's with 4 register banks (like the + 16f877) + */ + }, + /* tags for generic pointers */ + { 0x00, 0x00, 0x00, 0x80 }, /* far, near, xstack, code */ + { + "XSEG (XDATA)", + "STACK (DATA)", + "code", + "DSEG (DATA)", + "ISEG (DATA)", + NULL, /* pdata */ + "XSEG (XDATA)", + "BSEG (BIT)", + "RSEG (DATA)", + "GSINIT (CODE)", + "udata_ovr", + "GSFINAL (CODE)", + "HOME (CODE)", + NULL, // xidata + NULL, // xinit + "CONST (CODE)", // const_name - const data (code or not) + "CABS (ABS,CODE)", // cabs_name - const absolute data (code or not) + "XABS (ABS,XDATA)", // xabs_name - absolute xdata + "IABS (ABS,DATA)", // iabs_name - absolute data + NULL, + NULL, + 1 // code is read only + }, + { NULL, NULL }, + { + +1, 1, 4, 1, 1, 0 + }, + /* pic14 has an 8 bit mul */ + { + 1, -1 + }, + { + pic14_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 */ + }, + "_", + _pic14_init, + _pic14_parseOptions, + _pic14_poptions, + _pic14_initPaths, + _pic14_finaliseOptions, + _pic14_setDefaultOptions, + pic14_assignRegisters, + _pic14_getRegName, + _pic14_keywords, + _pic14_genAssemblerPreamble, + NULL, /* no genAssemblerEnd */ + _pic14_genIVT, + NULL, // _pic14_genXINIT + NULL, /* genInitStartup */ + _pic14_reset_regparm, + _pic14_regparm, + NULL, /* process a pragma */ + NULL, + _hasNativeMulFor, + hasExtBitOp, /* hasExtBitOp */ + oclsExpense, /* oclsExpense */ + FALSE, +// TRUE, /* little endian */ + FALSE, /* little endian - PIC code enumlates big endian */ + 0, /* leave lt */ + 0, /* leave gt */ + 1, /* transform <= to ! > */ + 1, /* transform >= to ! < */ + 1, /* transform != to !(a == b) */ + 0, /* leave == */ + FALSE, /* No array initializer support. */ + 0, /* no CSE cost estimation yet */ + NULL, /* no builtin functions */ + GPOINTER, /* treat unqualified pointers as "generic" pointers */ + 1, /* reset labelKey to 1 */ + 1, /* globals & local static allowed */ + PORT_MAGIC };