-/** @file main.c
- pic16 specific general functions.
+/*-------------------------------------------------------------------------
+
+ main.c - pic16 specific general functions.
+
+ Written by - Scott Dattalo scott@dattalo.com
+ Ported to PIC16 by - Martin Dubuc m.debuc@rogers.com
+
+ Note that mlh prepended _pic16_ on the static functions. Makes
+ it easier to set a breakpoint using the debugger.
+
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option) any
+ later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+-------------------------------------------------------------------------*/
- Note that mlh prepended _pic16_ on the static functions. Makes
- it easier to set a breakpoint using the debugger.
-*/
#include "common.h"
#include "main.h"
#include "ralloc.h"
#include "device.h"
#include "SDCCutil.h"
#include "glue.h"
-//#include "gen.h"
+#include "pcode.h"
+#include "SDCCargs.h"
+#include "dbuf_string.h"
static char _defaultRules[] =
static char *_pic16_keywords[] =
{
"at",
- "bit",
"code",
"critical",
+ "register",
"data",
"far",
- "idata",
"interrupt",
"near",
- "pdata",
+ //"pdata",
"reentrant",
"sfr",
- "sbit",
+ "sfr16",
"using",
- "xdata",
"_data",
"_code",
"_generic",
"_near",
- "_xdata",
- "_pdata",
- "_idata",
+ //"_pdata",
+ "_naked",
+ "shadowregs",
+ "wparam",
+ "prodlp",
+ "prodhp",
+ "fsr0lp",
+ "fixed16x16",
+
+// "bit",
+// "idata",
+// "sbit",
+// "xdata",
+// "_xdata",
+// "_idata",
NULL
};
+
+pic16_sectioninfo_t pic16_sectioninfo;
+
+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 */
+
+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 void pic16_emitConfigRegs(FILE *of);
+extern void pic16_emitIDRegs(FILE *of);
+
-static int regParmFlg = 0; /* determine if we can register a parameter */
static void
_pic16_init (void)
}
static void
-_pic16_reset_regparm ()
+_pic16_reset_regparm (void)
{
regParmFlg = 0;
}
static int
-_pic16_regparm (sym_link * l)
+_pic16_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;
+ /* 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 */
+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 };
+
+
+enum {
+ P_STACK = 1,
+ P_CODE,
+ P_UDATA,
+ P_LIBRARY
+};
+
static int
-_process_pragma(const char *sz)
+do_pragma(int id, const char *name, const char *cp)
{
- static const char *WHITE = " \t";
- char *ptr = strtok((char *)sz, WHITE);
+ struct pragma_token_s token;
+ int err = 0;
+ int processed = 1;
+
+ init_pragma_token(&token);
- if (startsWith (ptr, "memmap"))
+ switch (id)
{
- char *start;
- char *end;
- char *type;
- char *alias;
-
- start = strtok((char *)NULL, WHITE);
- end = strtok((char *)NULL, WHITE);
- type = strtok((char *)NULL, WHITE);
- alias = strtok((char *)NULL, WHITE);
-
- if (start != (char *)NULL
- && end != (char *)NULL
- && type != (char *)NULL) {
- value *startVal = constVal(start);
- value *endVal = constVal(end);
- value *aliasVal;
- memRange r;
-
- if (alias == (char *)NULL) {
- aliasVal = constVal(0);
- } else {
- aliasVal = constVal(alias);
- }
-
- r.start_address = (int)floatFromVal(startVal);
- r.end_address = (int)floatFromVal(endVal);
- r.alias = (int)floatFromVal(aliasVal);
- r.bank = (r.start_address >> 7) & 0xf;
-
- if (strcmp(type, "RAM") == 0) {
- pic16_addMemRange(&r, 0);
- } else if (strcmp(type, "SFR") == 0) {
- pic16_addMemRange(&r, 1);
- } else {
- return 1;
- }
+ /* #pragma stack [stack-position] [stack-len] */
+ case P_STACK:
+ {
+ unsigned int stackPos, stackLen;
+ regs *reg;
+ symbol *sym;
+
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_INT != token.type)
+ {
+ err = 1;
+ break;
+ }
+ stackPos = token.val.int_val;
+
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_INT != token.type)
+ {
+ err = 1;
+ break;
+ }
+ stackLen = token.val.int_val;
+
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_EOL != token.type)
+ {
+ err = 1;
+ break;
+ }
+
+ if (stackLen < 1) {
+ stackLen = 64;
+ fprintf(stderr, "%s:%d: warning: setting stack to default size %d (0x%04x)\n",
+ filename, lineno, stackLen, stackLen);
+ }
+
+ /* 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, stackPos, stackPos + stackLen - 1);
+ }
+
+ 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, stackPos, stackPos + stackLen - 1, pic16->acsSplitOfs);
+ }
+
+ 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, stackPos, stackPos + stackLen - 1, 0xF00 + pic16->acsSplitOfs);
+ }
+
+ 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, stackPos, stackPos + stackLen - 1, pic16->RAMsize-1);
+ err = 1;
+ break;
+ }
+ }
+
+ 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 */
}
+ break;
- return 0;
- } else if (startsWith (ptr, "maxram")) {
- char *maxRAM = strtok((char *)NULL, WHITE);
+ /* #pragma code [symbol] [location] */
+ case P_CODE:
+ {
+ absSym *absS;
+
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_STR != token.type)
+ goto code_err;
+
+ absS = Safe_calloc(1, sizeof(absSym));
+ sprintf(absS->name, "_%s", get_pragma_string(&token));
+
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_INT != token.type)
+ {
+ code_err:
+ //fprintf (stderr, "%s:%d: #pragma code [symbol] [location] -- symbol or location missing\n", filename, lineno);
+ err = 1;
+ break;
+ }
+ absS->address = token.val.int_val;
- if (maxRAM != (char *)NULL) {
- int maxRAMaddress;
- value *maxRAMVal;
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_EOL != token.type)
+ {
+ err = 1;
+ break;
+ }
- maxRAMVal = constVal(maxRAM);
- maxRAMaddress = (int)floatFromVal(maxRAMVal);
- pic16_setMaxRAM(maxRAMaddress);
+ 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, 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);
}
-
- return 0;
- }
- return 1;
+ break;
+
+ /* #pragma udata [section-name] [symbol] */
+ case P_UDATA:
+ {
+ char *sectname;
+ const char *symname;
+ symbol *nsym;
+ sectSym *ssym;
+ sectName *snam;
+ int found = 0;
+
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_STR == token.type)
+ sectname = Safe_strdup(get_pragma_string(&token));
+ else
+ {
+ err = 1;
+ break;
+ }
+
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_STR == token.type)
+ symname = get_pragma_string(&token);
+ else
+ {
+ //fprintf (stderr, "%s:%d: #pragma udata [section-name] [symbol] -- section-name or symbol missing!\n", filename, lineno);
+ err = 1;
+ symname = NULL;
+ }
+
+ 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((char *)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
+
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_STR == token.type)
+ symname = get_pragma_string(&token);
+ else if (TOKEN_EOL == token.type)
+ symname = NULL;
+ else
+ {
+ err = 1;
+ symname = NULL;
+ }
+ }
+
+ Safe_free(sectname);
+ }
+ break;
+
+ /* #pragma library library_module */
+ case P_LIBRARY:
+ {
+ const char *lmodule;
+
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_EOL != token.type)
+ {
+ lmodule = get_pragma_string(&token);
+
+ /* 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, (char *)lmodule);
+ }
+ }
+ }
+ else
+ {
+ err = 1;
+ break;
+ }
+
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_EOL != token.type)
+ {
+ err = 1;
+ break;
+ }
+ }
+ break;
+
+#if 0
+ /* This is an experimental code for #pragma inline
+ and is temporarily disabled for 2.5.0 release */
+ case P_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);
+ }
+ }
+ }
+ break;
+#endif /* 0 */
+
+ default:
+ processed = 0;
+ break;
+ }
+
+ get_pragma_token(cp, &token);
+
+ if (1 == err)
+ werror(W_BAD_PRAGMA_ARGUMENTS, name);
+
+ free_pragma_token(&token);
+ return processed;
}
+static struct pragma_s pragma_tbl[] = {
+ { "stack", P_STACK, 0, do_pragma },
+ { "code", P_CODE, 0, do_pragma },
+ { "udata", P_UDATA, 0, do_pragma },
+ { "library", P_LIBRARY, 0, do_pragma },
+/*{ "inline", P_INLINE, 0, do_pragma }, */
+ { NULL, 0, 0, NULL },
+ };
+
+static int
+_process_pragma(const char *s)
+{
+ return process_pragma_tbl(pragma_tbl, s);
+}
+
+#define REP_UDATA "--preplace-udata-with="
+
+#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 USE_CRT "--use-crt="
+
+#define OFMSG_LRSUPPORT "--flr-support"
+
+#define NO_OPTIMIZE_GOTO "--no-optimize-goto"
+#define OPTIMIZE_CMP "--optimize-cmp"
+#define OPTIMIZE_DF "--optimize-df"
+
+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_enable_peeps = 0;
+
+OPTION pic16_optionsTable[]= {
+ /* code generation options */
+ { 0, STACK_MODEL, NULL, "use stack model 'small' (default) or 'large'"},
+#if XINST
+ { 'y', "--extended", &pic16_options.xinst, "enable Extended Instruction Set/Literal Offset Addressing mode"},
+#endif
+ { 0, "--pno-banksel", &pic16_options.no_banksel, "do not generate BANKSEL assembler directives"},
+
+ /* optimization options */
+ { 0, OPT_BANKSEL, &pic16_options.opt_banksel, "set banksel optimization level (default=0 no)", CLAT_INTEGER },
+ { 0, "--denable-peeps", &pic16_enable_peeps, "explicit enable of peepholes"},
+ { 0, NO_OPTIMIZE_GOTO, NULL, "do NOT 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!)"},
+
+ /* assembling options */
+ { 0, ALT_ASM, &alt_asm, "Use alternative assembler", CLAT_STRING},
+ { 0, MPLAB_COMPAT, &pic16_mplab_comp, "enable compatibility mode for MPLAB utilities (MPASM/MPLINK)"},
+
+ /* linking options */
+ { 0, ALT_LINK, &alt_link, "Use alternative linker", CLAT_STRING },
+ { 0, REP_UDATA, &pic16_sectioninfo.at_udata, "Place udata variables at another section: udata_acs, udata_ovr, udata_shr", CLAT_STRING },
+ { 0, IVT_LOC, NULL, "Set address of interrupt vector table."},
+ { 0, NO_DEFLIBS, &pic16_options.nodefaultlibs, "do not link default libraries when linking"},
+ { 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"},
+
+ /* debugging options */
+ { 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, "--pcode-verbose", &pic16_pcode_verbose, "dump pcode related info"},
+ { 0, "--calltree", &pic16_options.dumpcalltree, "dump call tree in .calltree file"},
+ { 0, "--gstack", &pic16_options.gstack, "trace stack pointer push/pop to overflow"},
+ { 0, NULL, NULL, NULL}
+};
+
+
+#define ISOPT(str) !strncmp(argv[ *i ], str, strlen(str) )
+
static bool
_pic16_parseOptions (int *pargc, char **argv, int *i)
{
+ int j=0;
+ char *stkmodel;
+
/* TODO: allow port-specific command line options to specify
* segment names here.
*/
+
+ /* check for arguments that have associated an integer variable */
+ while(pic16_optionsTable[j].pparameter) {
+ if(ISOPT( pic16_optionsTable[j].longOpt )) {
+ (*(int *)pic16_optionsTable[j].pparameter)++;
+ return TRUE;
+ }
+ j++;
+ }
+
+ 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;
+ else {
+ fprintf(stderr, "Unknown stack model: %s", stkmodel);
+ exit(EXIT_FAILURE);
+ }
+ return TRUE;
+ }
+
+ 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;
+ }
+
+ if(ISOPT(USE_CRT)) {
+ pic16_options.no_crt = 0;
+ pic16_options.crt_name = Safe_strdup( getStringArg(USE_CRT, argv, i, *pargc) );
+
+ return TRUE;
+ }
+
+#if 0
+ if(ISOPT(OFMSG_LRSUPPORT)) {
+ pic16_options.opt_flags |= OF_LR_SUPPORT;
+ return TRUE;
+ }
+#endif
+
+ if (ISOPT(NO_OPTIMIZE_GOTO)) {
+ pic16_options.opt_flags |= OF_NO_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;
}
+extern void pic16_init_pic(const char *name);
+
+static void _pic16_initPaths(void)
+{
+ set *pic16libDirsSet=NULL;
+
+ if (!options.nostdlib) {
+ struct dbuf_s pic16libDir;
+
+ dbuf_init(&pic16libDir, 128);
+ dbuf_makePath(&pic16libDir, LIB_DIR_SUFFIX, "pic16");
+ pic16libDirsSet = appendStrSet(dataDirsSet, NULL, dbuf_c_str(&pic16libDir));
+ dbuf_destroy(&pic16libDir);
+ mergeSets(&pic16libDirsSet, libDirsSet);
+ libDirsSet = pic16libDirsSet;
+ }
+
+ /* now that we have the paths set up... */
+ pic16_init_pic(port->processor);
+}
+
+extern set *linkOptionsSet;
+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[1024];
+ char *lcmd;
+ char temp[1024];
+ set *tSet=NULL;
+ int ret;
+
+ /*
+ * link command format:
+ * {linker} {incdirs} {lflags} -o {outfile} {spec_ofiles} {ofiles} {libs}
+ *
+ */
+ sprintf(lfrm, "{linker} {incdirs} {lflags} -w -r -o {outfile} {user_ofile} {ofiles} {spec_ofiles} {libs}");
+
+ shash_add(&linkValues, "linker", pic16_linkCmd[0]);
+
+ mergeSets(&tSet, libPathsSet);
+ mergeSets(&tSet, libDirsSet);
+
+ shash_add(&linkValues, "incdirs", joinStrSet( appendStrSet(tSet, "-I\"", "\"")));
+ shash_add(&linkValues, "lflags", joinStrSet(linkOptionsSet));
+
+ shash_add(&linkValues, "outfile", fullDstFileName ? fullDstFileName : dstFileName);
+
+ if(fullSrcFileName) {
+ sprintf(temp, "%s.o", fullDstFileName ? fullDstFileName : 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));
+
+ 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);
+
+ ret = my_system( lcmd );
+
+ Safe_free( lcmd );
+
+ if(ret)
+ exit(1);
+}
+
+
static void
_pic16_finaliseOptions (void)
{
+ port->mem.default_local_map = data;
+ port->mem.default_globl_map = data;
+
+ /* 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
- 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)
+ options.float_rent = 1;
+ options.intlong_rent = 1;
+#endif
+
+ setMainValue("mcu", pic16->name[2] );
+ addSet(&preArgvSet, Safe_strdup("-D{mcu}"));
+
+ setMainValue("mcu1", pic16->name[1] );
+ addSet(&preArgvSet, Safe_strdup("-D__{mcu1}"));
+
+ if (!pic16_options.nodefaultlibs)
{
+ char devlib[512];
- fprintf (stderr, "*** WARNING: you should use the '-mds390' option "
- "for DS80C390 support. This code generator is "
- "badly out of date and probably broken.\n");
+ /* now add the library for the device */
+ sprintf(devlib, "libdev%s.lib", pic16->name[1]); /* e.g., libdev18f452.lib */
+ addSet(&libFilesSet, Safe_strdup(devlib));
- 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;
+ /* add the internal SDCC library */
+ addSet(&libFilesSet, Safe_strdup( "libsdcc.lib" ));
}
- if (options.model == MODEL_LARGE)
+ if (alt_asm && alt_asm[0] != '\0')
{
- port->mem.default_local_map = xdata;
- port->mem.default_globl_map = xdata;
+ pic16_asmCmd[0] = alt_asm;
}
- else
+
+ if (alt_link && alt_link[0] != '\0')
{
- port->mem.default_local_map = data;
- port->mem.default_globl_map = data;
+ pic16_linkCmd[0] = alt_link;
}
- if (options.stack10bit)
+ if (!pic16_options.no_crt)
{
- 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;
- }
+ 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)
+ {
+ char buf[128];
+
+ addSet(&asmOptionsSet, Safe_strdup("-DSDCC_MODEL_LARGE"));
+
+ 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"));
}
-#endif
}
+
static void
_pic16_setDefaultOptions (void)
{
+ 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 */
+ pic16_options.gstack = 0;
+ pic16_options.debgen = 0;
}
static const char *
return "err";
}
-extern char *pic16_processor_base_name(void);
+
+#if 1
+static char *_pic16_mangleFunctionName(char *sz)
+{
+// fprintf(stderr, "mangled function name: %s\n", sz);
+
+ return sz;
+}
+#endif
+
static void
_pic16_genAssemblerPreamble (FILE * of)
{
- char * name = pic16_processor_base_name();
-
- if(!name) {
+ char *name = pic16_processor_base_name();
- name = "p18f452";
- fprintf(stderr,"WARNING: No Pic has been selected, defaulting to %s\n",name);
- }
+ if(!name) {
+ name = "p18f452";
+ fprintf(stderr,"WARNING: No Pic has been selected, defaulting to %s\n",name);
+ }
- fprintf (of, "\tlist\tp=%s\n",&name[1]);
- fprintf (of, "\tinclude \"%s.inc\"\n",name);
+ fprintf (of, "\tlist\tp=%s\n",&name[1]);
+ if (pic16_mplab_comp) {
+ // provide ACCESS macro used during SFR accesses
+ fprintf (of, "\tinclude <p%s.inc>\n", &name[1]);
+ }
-#if 0
- fprintf (of, "\t__config _CONFIG1H,0x%x\n",pic16_getConfigWord(0x300001));
- fprintf (of, "\t__config _CONFIG2L,0x%x\n",pic16_getConfigWord(0x300002));
- fprintf (of, "\t__config _CONFIG2H,0x%x\n",pic16_getConfigWord(0x300003));
- fprintf (of, "\t__config _CONFIG3H,0x%x\n",pic16_getConfigWord(0x300005));
- fprintf (of, "\t__config _CONFIG4L,0x%x\n",pic16_getConfigWord(0x300006));
- fprintf (of, "\t__config _CONFIG5L,0x%x\n",pic16_getConfigWord(0x300008));
- fprintf (of, "\t__config _CONFIG5H,0x%x\n",pic16_getConfigWord(0x300009));
- fprintf (of, "\t__config _CONFIG6L,0x%x\n",pic16_getConfigWord(0x30000a));
- fprintf (of, "\t__config _CONFIG6H,0x%x\n",pic16_getConfigWord(0x30000b));
- fprintf (of, "\t__config _CONFIG7L,0x%x\n",pic16_getConfigWord(0x30000c));
- fprintf (of, "\t__config _CONFIG7H,0x%x\n",pic16_getConfigWord(0x30000d));
-#endif
+ if(!pic16_options.omit_configw) {
+ pic16_emitConfigRegs(of);
+ fprintf(of, "\n");
+ pic16_emitIDRegs(of);
+ }
fprintf (of, "\tradix dec\n");
}
/* Generate interrupt vector table. */
static int
-_pic16_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts)
+_pic16_genIVT (struct dbuf_s * oBuf, symbol ** interrupts, int maxInterrupts)
{
-#if 0
- int i;
-#endif
+#if 1
+ /* PIC18F family has only two interrupts, the high and the low
+ * priority interrupts, which reside at 0x0008 and 0x0018 respectively - VR */
-#if 0
- if (options.model != MODEL_FLAT24)
- {
- /* Let the default code handle it. */
- return FALSE;
+ if((!pic16_options.omit_ivt) || (pic16_options.omit_ivt && pic16_options.leave_reset)) {
+ dbuf_printf(oBuf, "; RESET vector\n");
+ dbuf_printf(oBuf, "\tgoto\t__sdcc_gsinit_startup\n");
}
-#endif
- /* PIC18F family has only two interrupts, the high and the low
- * priority interrupts, which reside in 0x0008 and 0x0018 respectively */
-
- fprintf(of, "; RESET vector\n");
- fprintf(of, "\tgoto\t__sdcc_gsinit_startup\n");
- fprintf(of, "\tres 2\n");
-
-
- fprintf(of, "; High priority interrupt vector 0x0008\n");
-
- if(interrupts[1]) {
- fprintf(of, "\tgoto\t%s\n", interrupts[1]->rname);
- fprintf(of, "\tres\t6\n");
- } else {
- fprintf(of, "\tretfie\n");
- fprintf(of, "\tres\t14\n");
- }
-
- fprintf(of, "; Low priority interrupt vector 0x0018\n");
- if(interrupts[2]) {
- fprintf(of, "\tgoto\t%s\n", interrupts[2]->rname);
- } else {
- fprintf(of, "\tretfie\n");
- }
-#if 0
- /* now for the other interrupts */
- for (i = 0; i < maxInterrupts; i++)
- {
- fprintf(of, "; %s priority interrupt vector 0x%s\n", (i==0)?"high":"low", (i==0)?"0008":"0018");
- if (interrupts[i])
- {
- fprintf (of, "\tgoto\t%s\n\tres\t4\n", interrupts[i]->rname);
- }
- else
- {
- fprintf (of, "\tretfie\n\tres\t7\n");
- }
+ if(!pic16_options.omit_ivt) {
+ dbuf_printf(oBuf, "\tres 4\n");
+
+
+ dbuf_printf(oBuf, "; High priority interrupt vector 0x0008\n");
+ if(interrupts[1]) {
+ dbuf_printf(oBuf, "\tgoto\t%s\n", interrupts[1]->rname);
+ dbuf_printf(oBuf, "\tres\t12\n");
+ } else {
+ dbuf_printf(oBuf, "\tretfie\n");
+ dbuf_printf(oBuf, "\tres\t14\n");
+ }
+
+ dbuf_printf(oBuf, "; Low priority interrupt vector 0x0018\n");
+ if(interrupts[2]) {
+ dbuf_printf(oBuf, "\tgoto\t%s\n", interrupts[2]->rname);
+ } else {
+ dbuf_printf(oBuf, "\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));
+ int symL, symR, symRes, sizeL = 0, sizeR = 0, sizeRes = 0;
- fprintf(stderr,"checking for native mult\n");
+ /* left/right are symbols? */
+ symL = IS_SYMOP(IC_LEFT(ic));
+ symR = IS_SYMOP(IC_RIGHT(ic));
+ symRes = IS_SYMOP(IC_RESULT(ic));
- if ( ic->op != '*')
- {
- return FALSE;
+ /* --> 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;
+
+ /* 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 [-128..256)
+ * and the other is an unsigned byte, use native MUL
+ */
+ if (ic->op == '*')
+ {
+ /* 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;
}
- return TRUE;
-/*
- if ( IS_LITERAL (left))
+ /* also allow literals [-128..256) for left/right operands */
+ if (IS_VALOP(IC_LEFT(ic)))
{
- fprintf(stderr,"left is lit\n");
- test = left;
- val = OP_VALUE (IC_LEFT (ic));
+ long l = (long) ulFromVal ( OP_VALUE( IC_LEFT(ic) ) );
+ sizeL = 4;
+ //printf( "%s: val(left) = %ld\n", __FUNCTION__, l );
+ if (l >= -128 && l < 256)
+ {
+ sizeL = 1;
+ } else {
+ //printf( "%s: left value %ld outside [-128..256)\n", __FUNCTION__, l );
+ }
}
- else if ( IS_LITERAL (right))
+ if (IS_VALOP( IC_RIGHT(ic) ))
{
- fprintf(stderr,"right is lit\n");
- test = left;
- val = OP_VALUE (IC_RIGHT (ic));
+ long l = (long) ulFromVal ( OP_VALUE( IC_RIGHT(ic) ) );
+ sizeR = 4;
+ //printf( "%s: val(right) = %ld\n", __FUNCTION__, l );
+ if (l >= -128 && l < 256)
+ {
+ sizeR = 1;
+ } else {
+ //printf( "%s: right value %ld outside [-128..256)\n", __FUNCTION__, l );
+ }
}
- else
+
+ /* use native mult iff left and right are (unsigned) 8-bit operands */
+ if (sizeL == 1 && sizeR == 1) { return TRUE; }
+ }
+
+ if (ic->op == '/' || ic->op == '%')
+ {
+ /* We must catch /: {u8_t,s8_t} x {u8_t,s8_t} --> {u8_t,s8_t},
+ * because SDCC will call 'divuchar' even for u8_t / s8_t.
+ * Example: 128 / -2 becomes 128 / 254 = 0 != -64... */
+ if (sizeL == 1 && sizeR == 1) return TRUE;
+
+ /* What about literals? */
+ if (IS_VALOP( IC_LEFT(ic) ))
{
- fprintf(stderr,"oops, neither is lit so no\n");
- return FALSE;
+ long l = (long) ulFromVal ( OP_VALUE( IC_LEFT(ic) ) );
+ sizeL = 4;
+ //printf( "%s: val(left) = %ld\n", __FUNCTION__, l );
+ if (l >= -128 && l < 256)
+ {
+ sizeL = 1;
+ } else {
+ //printf( "%s: left value %ld outside [-128..256)\n", __FUNCTION__, l );
+ }
}
-
- if ( getSize (test) <= 2)
+ if (IS_VALOP( IC_RIGHT(ic) ))
{
- fprintf(stderr,"yep\n");
- return TRUE;
+ long l = (long) ulFromVal ( OP_VALUE( IC_RIGHT(ic) ) );
+ sizeR = 4;
+ //printf( "%s: val(right) = %ld\n", __FUNCTION__, l );
+ if (l >= -128 && l < 256)
+ {
+ sizeR = 1;
+ } else {
+ //printf( "%s: right value %ld outside [-128..256)\n", __FUNCTION__, l );
+ }
}
- fprintf(stderr,"nope\n");
+ if (sizeL == 1 && sizeR == 1) { return TRUE; }
+ }
return FALSE;
-*/
}
-/** $1 is always the basename.
+
+#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;
+ }
+#endif
+
+ /* for others it is cheaper to do the cse */
+ return 1;
+}
+#endif
+
+
+/* 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 0;
+}
+
+/** $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", "-w", "-r", "-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", "-c -I/usr/local/share/gputils/header", "\"$1.asm\"", NULL
+ "gpasm", "$l", "$3", "-c", "\"$1.asm\"", "-o \"$2\"", NULL
};
{
TARGET_ID_PIC16,
"pic16",
- "MCU PIC16", /* Target name */
- "p18f442", /* Processor */
+ "MCU PIC16", /* Target name */
+ "p18f452", /* Processor */
{
pic16glue,
- TRUE, /* Emit glue around main */
+ 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 */
+ pic16_asmCmd, /* assembler command and arguments */
+ NULL, /* alternate macro based form */
+ "-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,
- NULL,
- NULL,
- ".rel"
+ NULL, // pic16_linkCmd, /* linker command and arguments */
+ NULL, /* alternate macro based form */
+ _pic16_linkEdit, //NULL, /* no do_link function */
+ ".o", /* extension for object files */
+ 0 /* no need for linker file */
},
{
_defaultRules
},
{
- /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */
- 1, 2, 2, 4, 2, 2, 2, 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)
- */
+ /* Sizes */
+ 1, /* char */
+ 2, /* short */
+ 2, /* int */
+ 4, /* long */
+ 2, /* ptr */
+ 3, /* fptr, far pointers (see Microchip) */
+ 3, /* gptr */
+ 1, /* bit */
+ 4, /* float */
+ 4 /* max */
+ },
+
+ /* generic pointer tags */
+ {
+ 0x00, /* far */
+ 0x80, /* near */
+ 0x00, /* xstack */
+ 0x00 /* code */
+ },
+
+ {
+ "XSEG (XDATA)", // xstack
+ "STACK (DATA)", // istack
+ "CSEG (CODE)", // code
+ "DSEG (DATA)", // data
+ "ISEG (DATA)", // idata
+ "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
+ 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, // default location for auto vars
+ NULL, // default location for global vars
+ 1 // code is read only 1=yes
},
{
- "XSEG (XDATA)", // xstack
- "STACK (DATA)", // istack
- "CSEG (CODE)", // code
- "DSEG (DATA)", // data
- "ISEG (DATA)", // idata
- "XSEG (XDATA)", // xdata
- "BSEG (BIT)", // bit
- "RSEG (DATA)", // reg
- "GSINIT (CODE)", // static
- "OSEG (OVR,DATA)", // overlay
- "GSFINAL (CODE)", // post static
- "HOME (CODE)", // home
- NULL, // xidata
- NULL, // xinit
- NULL, // default location for auto vars
- NULL, // default location for global vars
- 1 // code is read only
+ NULL, /* genExtraAreaDeclaration */
+ NULL /* genExatrAreaLinkOptions */
},
- { NULL, NULL },
{
- +1, 1, 4, 1, 1, 0
+ /* stack related information */
+ -1, /* -1 stack grows downwards, +1 upwards */
+ 1, /* extra overhead when calling between banks */
+ 4, /* extra overhead when the function is an ISR */
+ 1, /* extra overhead for a function call */
+ 1, /* re-entrant space */
+ 0 /* 'banked' call overhead, mild overlap with bank_overhead */
},
/* 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,
- NULL,
+ pic16_optionsTable,
+ _pic16_initPaths,
_pic16_finaliseOptions,
_pic16_setDefaultOptions,
pic16_assignRegisters,
_pic16_getRegName,
_pic16_keywords,
_pic16_genAssemblerPreamble,
- NULL, /* no genAssemblerEnd */
+ NULL, /* no genAssemblerEnd */
_pic16_genIVT,
NULL, // _pic16_genXINIT
+ NULL, /* genInitStartup */
_pic16_reset_regparm,
_pic16_regparm,
- _process_pragma, /* process a pragma */
- NULL,
+ _process_pragma, /* process a pragma */
+ _pic16_mangleFunctionName, /* mangles function name */
_hasNativeMulFor,
+ hasExtBitOp, /* hasExtBitOp */
+ oclsExpense, /* oclsExpense */
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 */
- GPOINTER, /* treat unqualified pointers as "generic" pointers */
- 1, /* reset labelKey to 1 */
- 1, /* globals & local static allowed */
+ TRUE, /* little 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, //cseCostEstimation, /* !!!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
};
projects / fw / sdcc / blobdiff