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.
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.
#include "SDCCutil.h"
#include "glue.h"
#include "pcode.h"
-//#include "gen.h"
+#include "SDCCargs.h"
+#include "dbuf_string.h"
static char _defaultRules[] =
"far",
"interrupt",
"near",
- "pdata",
+ //"pdata",
"reentrant",
"sfr",
+ "sfr16",
"using",
"_data",
"_code",
"_generic",
"_near",
- "_pdata",
+ //"_pdata",
"_naked",
"shadowregs",
"wparam",
-
+ "prodlp",
+ "prodhp",
+ "fsr0lp",
+ "fixed16x16",
+
// "bit",
// "idata",
// "sbit",
pic16_sectioninfo_t pic16_sectioninfo;
-
extern char *pic16_processor_base_name(void);
void pic16_pCodeInitRegisters(void);
void pic16_assignRegisters (ebbIndex *);
-static int regParmFlg = 0; /* determine if we can register a parameter */
+static int regParmFlg = 0; /* determine if we can register a parameter */
pic16_options_t pic16_options;
/* 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 int
-_pic16_regparm (sym_link * l)
+_pic16_regparm (sym_link * l, bool reentrant)
{
/* force all parameters via SEND/RECEIVE */
if(0 /*pic16_options.ip_stack*/) {
* can pass only the first parameter in a register */
if(regParmFlg)return 0;
regParmFlg++;
- return 1; //regParmFlg;
+ return 1; //regParmFlg;
} else {
/* otherwise pass all arguments in registers via SEND/RECEIVE */
regParmFlg++;// = 1;
}
-int initsfpnt=0; /* set to 1 if source provides a pragma for stack
- * so glue() later emits code to initialize stack/frame pointers */
+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 *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
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\n";
- static const char *WHITECOMMA = " \t\n,";
- char *ptr = strtok((char *)sz, WHITE);
+ struct pragma_token_s token;
+ int err = 0;
+ int processed = 1;
- /* #pragma maxram [maxram] */
- if (startsWith (ptr, "maxram")) {
- char *maxRAM = strtok((char *)NULL, WHITE);
+ init_pragma_token(&token);
- if (maxRAM != (char *)NULL) {
- int maxRAMaddress;
- value *maxRAMVal;
+ switch (id)
+ {
+ /* #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;
- maxRAMVal = constVal(maxRAM);
- maxRAMaddress = (int)floatFromVal(maxRAMVal);
- pic16_setMaxRAM(maxRAMaddress);
+ 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);
}
- 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;
-
- if (!stackPosS) {
- fprintf (stderr, "%s:%d: #pragma stack [stack-pos] [stack-length] -- stack-position missing\n", filename, lineno-1);
-
- return 0; /* considered an error */
- }
+ /* 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);
+ }
- stackPosVal = constVal( stackPosS );
- stackPos = (unsigned int)floatFromVal( stackPosVal );
+ 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(stackLenS) {
- stackLenVal = constVal( stackLenS );
- stackLen = (unsigned int)floatFromVal( stackLenVal );
- }
+ 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(stackLen < 1) {
- stackLen = 64;
- fprintf(stderr, "%s:%d: warning: setting stack to default size %d (0x%04x)\n",
- filename, lineno-1, stackLen, stackLen);
-
-// fprintf(stderr, "%s:%d setting stack to default size %d\n", __FILE__, __LINE__, stackLen);
- }
+ if (stackPos+stackLen > 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;
+ }
+ }
-// 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);
- /* check sanity of stack */
- if ((stackPos >> 8) != ((stackPos+stackLen) >> 8)) {
- fprintf (stderr, "%s:%u: warning: stack [0x%03X,0x%03X] crosses memory bank boundaries (not fully tested)\n",
- filename,lineno-1, stackPos, stackPos+stackLen-1);
- }
+ reg = newReg(REG_SFR, PO_SFR_REGISTER, stackPos + stackLen-1, "_stack_end", 1, 0, NULL);
+ addSet(&pic16_fix_udata, reg);
- if (pic16) {
- if (stackPos < pic16->acsSplitOfs) {
- fprintf (stderr, "%s:%u: warning: stack [0x%03X, 0x%03X] intersects with the access bank [0x000,0x%03x] -- this is highly discouraged!\n",
- filename, lineno-1, stackPos, stackPos+stackLen-1, pic16->acsSplitOfs);
- }
+ sym = newSymbol("stack", 0);
+ sprintf(sym->rname, "_%s", sym->name);
+ addSet(&publics, sym);
- if (stackPos+stackLen > 0xF00 + pic16->acsSplitOfs) {
- fprintf (stderr, "%s:%u: warning: stack [0x%03X,0x%03X] intersects with special function registers [0x%03X,0xFFF]-- this is highly discouraged!\n",
- filename, lineno-1, stackPos, stackPos+stackLen-1, 0xF00 + pic16->acsSplitOfs);
- }
+ sym = newSymbol("stack_end", 0);
+ sprintf(sym->rname, "_%s", sym->name);
+ addSet(&publics, sym);
- if (stackPos+stackLen > pic16->RAMsize) {
- fprintf (stderr, "%s:%u: error: stack [0x%03X,0x%03X] is placed outside available memory [0x000,0x%03X]!\n",
- filename, lineno-1, stackPos, stackPos+stackLen-1, pic16->RAMsize-1);
- exit(-1);
- return 1; /* considered an error, but this reports "invalid pragma stack"... */
- }
+ initsfpnt = 1; // force glue() to initialize stack/frame pointers */
}
+ 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 */
-
- return 0;
- }
-
- /* #pragma code [symbol] [location] */
- if(startsWith(ptr, "code")) {
- char *symname = strtok((char *)NULL, WHITE);
- char *location = strtok((char *)NULL, WHITE);
- absSym *absS;
- value *addr;
-
- if (!symname || !location) {
- fprintf (stderr, "%s:%d: #pragma code [symbol] [location] -- symbol or location missing\n", filename, lineno-1);
- exit (-1);
- return 1; /* considered an error, but this reports "invalid pragma code"... */
- }
+ /* #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;
- absS = Safe_calloc(1, sizeof(absSym));
- sprintf(absS->name, "_%s", symname);
-
- addr = constVal( location );
- absS->address = (unsigned int)floatFromVal( addr );
+ cp = get_pragma_token(cp, &token);
+ if (TOKEN_EOL != token.type)
+ {
+ err = 1;
+ break;
+ }
+
+ 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);
+ }
- 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);
}
+ break;
- addSet(&absSymSet, absS);
-// fprintf(stderr, "%s:%d symbol %s will be placed in location 0x%06x in code memory\n",
-// __FILE__, __LINE__, symname, absS->address);
+ /* #pragma udata [section-name] [symbol] */
+ 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;
+ }
- return 0;
- }
+ 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;
+ }
- /* #pragma udata [section-name] [symbol] */
- if(startsWith(ptr, "udata")) {
- char *sectname = strtok((char *)NULL, WHITE);
- char *symname = strtok((char *)NULL, WHITE);
- symbol *nsym;
- sectSym *ssym;
- sectName *snam;
- int found=0;
-
- if (!symname || !sectname) {
- fprintf (stderr, "%s:%d: #pragma udata [section-name] [symbol] -- section-name or symbol missing!\n", filename, lineno-1);
- exit (-1);
- return 1; /* considered an error, but this reports "invalid pragma code"... */
- }
-
- while(symname) {
- ssym = Safe_calloc(1, sizeof(sectSym));
- ssym->name = Safe_calloc(1, strlen(symname)+2);
- sprintf(ssym->name, "%s%s", port->fun_prefix, symname);
- ssym->reg = NULL;
+ 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);
+ addSet(§Syms, ssym);
- nsym = newSymbol(symname, 0);
- strcpy(nsym->rname, ssym->name);
+ nsym = newSymbol((char *)symname, 0);
+ strcpy(nsym->rname, ssym->name);
#if 0
- checkAddSym(&publics, nsym);
+ 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;
-
+ 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);
+ fprintf(stderr, "%s:%d placing symbol %s at section %s (%p)\n", __FILE__, __LINE__,
+ ssym->name, snam->name, snam);
#endif
- symname = strtok((char *)NULL, WHITE);
- }
+ 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;
+ }
+ }
- return 0;
- }
-
- /* #pragma wparam function1[, function2[,...]] */
- if(startsWith(ptr, "wparam")) {
- char *fname = strtok((char *)NULL, WHITECOMMA);
-
-
- while(fname) {
- fprintf(stderr, "PIC16 Warning: `%s' wparam pragma is obsolete. use function attribute `wparam' instead.\n", fname);
- addSet(&wparamList, Safe_strdup(fname));
-
-// debugf("passing with WREG to %s\n", fname);
- fname = strtok((char *)NULL, WHITECOMMA);
+ Safe_free(sectname);
}
-
- return 0;
- }
-
- /* #pragma library library_module */
- if(startsWith(ptr, "library")) {
- char *lmodule = strtok((char *)NULL, WHITE);
-
- if(lmodule) {
- /* lmodule can be:
- * c link the C library
- * math link the math library
- * io link the IO library
- * debug link the debug libary
- * anything else, will link as-is */
-
- if(!strcmp(lmodule, "c"))libflags.want_libc = 1;
- else if(!strcmp(lmodule, "math"))libflags.want_libm = 1;
- else if(!strcmp(lmodule, "io"))libflags.want_libio = 1;
- else if(!strcmp(lmodule, "debug"))libflags.want_libdebug = 1;
- else if(!strcmp(lmodule, "ignore"))libflags.ignore = 1;
- else {
- if(!libflags.ignore) {
- fprintf(stderr, "link library %s\n", lmodule);
- addSetHead(&libFilesSet, lmodule);
- }
+ 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;
+ }
}
- }
-
- return 0;
- }
-
+ break;
+
#if 0
/* This is an experimental code for #pragma inline
and is temporarily disabled for 2.5.0 release */
- if(startsWith(ptr, "inline")) {
- char *tmp = strtok((char *)NULL, WHITECOMMA);
+ case P_INLINE:
+ {
+ char *tmp = strtok((char *)NULL, WHITECOMMA);
- while(tmp) {
- addSet(&asmInlineMap, Safe_strdup( tmp ));
- tmp = strtok((char *)NULL, WHITECOMMA);
- }
+ while(tmp) {
+ addSet(&asmInlineMap, Safe_strdup( tmp ));
+ tmp = strtok((char *)NULL, WHITECOMMA);
+ }
+
+ {
+ char *s;
- {
- char *s;
-
for(s = setFirstItem(asmInlineMap); s ; s = setNextItem(asmInlineMap)) {
debugf("inline asm: `%s'\n", s);
}
+ }
}
-
- return 0;
- }
+ break;
#endif /* 0 */
- return 1;
+ 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 REP_UDATA "--preplace-udata-with="
-#define STACK_MODEL "--pstack-model="
-#define OPT_BANKSEL "--obanksel="
+#define STACK_MODEL "--pstack-model="
+#define OPT_BANKSEL "--obanksel="
-#define ALT_ASM "--asm="
-#define ALT_LINK "--link="
+#define ALT_ASM "--asm="
+#define ALT_LINK "--link="
-#define IVT_LOC "--ivt-loc="
-#define NO_DEFLIBS "--nodefaultlibs"
-#define MPLAB_COMPAT "--mplab-comp"
+#define IVT_LOC "--ivt-loc="
+#define NO_DEFLIBS "--nodefaultlibs"
+#define MPLAB_COMPAT "--mplab-comp"
-#define NL_OPT "--nl="
-#define USE_CRT "--use-crt="
+#define USE_CRT "--use-crt="
-#define OFMSG_LRSUPPORT "--flr-support"
+#define OFMSG_LRSUPPORT "--flr-support"
-#define OPTIMIZE_GOTO "--optimize-goto"
-#define OPTIMIZE_CMP "--optimize-cmp"
-#define OPTIMIZE_DF "--optimize-df"
+#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;
+char *alt_asm = NULL;
+char *alt_link = NULL;
-int pic16_mplab_comp=0;
+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 */
+int pic16_enable_peeps = 0;
OPTION pic16_optionsTable[]= {
- { 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, "--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, REP_UDATA, NULL, "Place udata variables at another section: udata_acs, udata_ovr, udata_shr"},
-
- { 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, "--gstack", &pic16_options.gstack, "trace stack pointer push/pop to overflow"},
- { 0, OPTIMIZE_GOTO, NULL, "try to use (conditional) BRA instead of GOTO"},
- { 0, OPTIMIZE_CMP, NULL, "try to optimize some compares"},
- { 0, OPTIMIZE_DF, NULL, "thoroughly analyze data flow (memory and time intensive!)"},
- { 0, NULL, NULL, NULL}
- };
-
-
-#define ISOPT(str) !strncmp(argv[ *i ], str, strlen(str) )
-
-extern char *getStringArg(const char *, char **, int *, int);
-extern int getIntArg(const char *, char **, int *, int);
+ /* 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 )) {
- (*pic16_optionsTable[j].pparameter)++;
+ (*(int *)pic16_optionsTable[j].pparameter)++;
return TRUE;
}
j++;
else if(!STRCASECMP(stkmodel, "large"))pic16_options.stack_model = 1;
else {
fprintf(stderr, "Unknown stack model: %s", stkmodel);
- exit(-1);
+ exit(EXIT_FAILURE);
}
return TRUE;
}
- if(ISOPT(OPT_BANKSEL)) {
- pic16_options.opt_banksel = getIntArg(OPT_BANKSEL, argv, i, *pargc);
- return TRUE;
- }
-
- if(ISOPT(REP_UDATA)) {
- pic16_sectioninfo.at_udata = Safe_strdup(getStringArg(REP_UDATA, argv, i, *pargc));
- return TRUE;
- }
-
- if(ISOPT(ALT_ASM)) {
- alt_asm = Safe_strdup(getStringArg(ALT_ASM, argv, i, *pargc));
- return TRUE;
- }
-
- if(ISOPT(ALT_LINK)) {
- alt_link = Safe_strdup(getStringArg(ALT_LINK, argv, i, *pargc));
- 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(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;
}
#endif
- if (ISOPT(OPTIMIZE_GOTO)) {
- pic16_options.opt_flags |= OF_OPTIMIZE_GOTO;
+ if (ISOPT(NO_OPTIMIZE_GOTO)) {
+ pic16_options.opt_flags |= OF_NO_OPTIMIZE_GOTO;
return TRUE;
}
pic16_options.opt_flags |= OF_OPTIMIZE_DF;
return TRUE;
}
-
+
return FALSE;
}
-extern set *userIncDirsSet;
+extern void pic16_init_pic(const char *name);
static void _pic16_initPaths(void)
{
- char pic16incDir[512];
- char pic16libDir[512];
- set *pic16incDirsSet=NULL;
- set *pic16libDirsSet=NULL;
- char devlib[512];
-
- setMainValue("mcu", pic16->name[2] );
- addSet(&preArgvSet, Safe_strdup("-D{mcu}"));
+ set *pic16libDirsSet=NULL;
- setMainValue("mcu1", pic16->name[1] );
- addSet(&preArgvSet, Safe_strdup("-D__{mcu1}"));
+ if (!options.nostdlib) {
+ struct dbuf_s pic16libDir;
- sprintf(pic16incDir, "%s%cpic16", INCLUDE_DIR_SUFFIX, DIR_SEPARATOR_CHAR);
- sprintf(pic16libDir, "%s%cpic16", LIB_DIR_SUFFIX, DIR_SEPARATOR_CHAR);
-
-
- 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);
+ 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;
}
- if(!pic16_options.nodefaultlibs) {
- /* now add the library for the device */
- sprintf(devlib, "%s.lib", pic16->name[2]);
- addSet(&libFilesSet, Safe_strdup(devlib));
-
- /* add the internal SDCC library */
- addSet(&libFilesSet, Safe_strdup( "libsdcc.lib" ));
- }
+ /* 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[256];
+ char lfrm[1024];
char *lcmd;
- char temp[128];
+ 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} -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));
+
+ /*
+ * 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)
+ if(!pic16_options.no_crt)
shash_add(&linkValues, "spec_ofiles", pic16_options.crt_name);
- shash_add(&linkValues, "ofiles", joinStrSet(relFilesSet));
+ shash_add(&linkValues, "ofiles", joinStrSet(relFilesSet));
+
+ if(!libflags.ignore) {
+ if(libflags.want_libc)
+ addSet(&libFilesSet, Safe_strdup("libc18f.lib"));
- 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 */
+ 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);
-}
+ shash_add(&linkValues, "libs", joinStrSet(libFilesSet));
+ lcmd = msprintf(linkValues, lfrm);
+
+ ret = my_system( lcmd );
+
+ Safe_free( lcmd );
+
+ if(ret)
+ exit(1);
+}
-/* forward declarations */
-extern const char *pic16_linkCmd[];
-extern const char *pic16_asmCmd[];
-extern set *asmOptionsSet;
static void
_pic16_finaliseOptions (void)
{
- 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;
+ /* peepholes are disabled for the time being */
+ options.nopeep = 1;
- /* explicit enable peepholes for testing */
- if(pic16_enable_peeps)
- options.nopeep = 0;
+ /* explicit enable peepholes for testing */
+ if (pic16_enable_peeps)
+ options.nopeep = 0;
- options.all_callee_saves = 1; // always callee saves
+ options.all_callee_saves = 1; // always callee saves
#if 0
- options.float_rent = 1;
- options.intlong_rent = 1;
+ options.float_rent = 1;
+ options.intlong_rent = 1;
#endif
-
- if(alt_asm && strlen(alt_asm))
+ 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];
+
+ /* now add the library for the device */
+ sprintf(devlib, "libdev%s.lib", pic16->name[1]); /* e.g., libdev18f452.lib */
+ addSet(&libFilesSet, Safe_strdup(devlib));
+
+ /* add the internal SDCC library */
+ addSet(&libFilesSet, Safe_strdup( "libsdcc.lib" ));
+ }
+
+ if (alt_asm && alt_asm[0] != '\0')
+ {
pic16_asmCmd[0] = alt_asm;
-
- if(alt_link && strlen(alt_link))
+ }
+
+ if (alt_link && alt_link[0] != '\0')
+ {
pic16_linkCmd[0] = alt_link;
-
- if(!pic16_options.no_crt) {
+ }
+
+ if (!pic16_options.no_crt)
+ {
pic16_options.omit_ivt = 1;
pic16_options.leave_reset = 0;
}
-
- if(options.model == MODEL_SMALL)
+
+ if (options.model == MODEL_SMALL)
+ {
addSet(&asmOptionsSet, Safe_strdup("-DSDCC_MODEL_SMALL"));
- else
- if(options.model == MODEL_LARGE)
- addSet(&asmOptionsSet, Safe_strdup("-DSDCC_MODEL_LARGE"));
-
+ }
+ else if (options.model == MODEL_LARGE)
{
char buf[128];
- sprintf(buf, "-D%s -D__%s", pic16->name[2], pic16->name[1]);
- *(strrchr(buf, 'f')) = 'F';
- addSet(&asmOptionsSet, Safe_strdup( buf ));
- }
-
- if(STACK_MODEL_LARGE) {
- addSet(&preArgvSet, Safe_strdup("-DSTACK_MODEL_LARGE"));
- addSet(&asmOptionsSet, Safe_strdup("-DSTACK_MODEL_LARGE"));
- } else {
- addSet(&preArgvSet, Safe_strdup("-DSTACK_MODEL_SMALL"));
- addSet(&asmOptionsSet, Safe_strdup("-DSTACK_MODEL_SMALL"));
- }
-}
+ 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 0
- if (options.model == MODEL_LARGE)
+ if (STACK_MODEL_LARGE)
{
- port->mem.default_local_map = xdata;
- port->mem.default_globl_map = xdata;
+ addSet(&preArgvSet, Safe_strdup("-DSTACK_MODEL_LARGE"));
+ addSet(&asmOptionsSet, Safe_strdup("-DSTACK_MODEL_LARGE"));
}
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;
- }
+ 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
+ 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";
+ pic16_sectioninfo.at_udata = "udata";
/* set pic16 port options to defaults */
pic16_options.no_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.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.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;
}
#if 1
static char *_pic16_mangleFunctionName(char *sz)
{
-// fprintf(stderr, "mangled function name: %s\n", sz);
+// fprintf(stderr, "mangled function name: %s\n", sz);
return sz;
}
{
char *name = pic16_processor_base_name();
- if(!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]);
+ if (pic16_mplab_comp) {
+ // provide ACCESS macro used during SFR accesses
+ fprintf (of, "\tinclude <p%s.inc>\n", &name[1]);
+ }
- fprintf (of, "\tlist\tp=%s\n",&name[1]);
+ if(!pic16_options.omit_configw) {
+ pic16_emitConfigRegs(of);
+ fprintf(of, "\n");
+ pic16_emitIDRegs(of);
+ }
- 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 1
- /* PIC18F family has only two interrupts, the high and the low
- * priority interrupts, which reside at 0x0008 and 0x0018 respectively - VR */
-
- if((!pic16_options.omit_ivt) || (pic16_options.omit_ivt && pic16_options.leave_reset)) {
- fprintf(of, "; RESET vector\n");
- fprintf(of, "\tgoto\t__sdcc_gsinit_startup\n");
- }
-
- if(!pic16_options.omit_ivt) {
- fprintf(of, "\tres 4\n");
-
-
- fprintf(of, "; High priority interrupt vector 0x0008\n");
- if(interrupts[1]) {
- fprintf(of, "\tgoto\t%s\n", interrupts[1]->rname);
- fprintf(of, "\tres\t12\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");
- }
- }
+ /* PIC18F family has only two interrupts, the high and the low
+ * priority interrupts, which reside at 0x0008 and 0x0018 respectively - VR */
+
+ 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");
+ }
+
+ 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;
}
* False to convert it to function call */
static bool _hasNativeMulFor (iCode *ic, sym_link *left, sym_link *right)
{
-// fprintf(stderr,"checking for native mult for %c (size: %d)\n", ic->op, getSize(OP_SYMBOL(IC_RESULT(ic))->type));
+ //fprintf(stderr,"checking for native mult for %c (size: %d)\n", ic->op, getSize(OP_SYMBOL(IC_RESULT(ic))->type));
+ int symL, symR, symRes, sizeL = 0, sizeR = 0, sizeRes = 0;
+
+ /* left/right are symbols? */
+ symL = IS_SYMOP(IC_LEFT(ic));
+ symR = IS_SYMOP(IC_RIGHT(ic));
+ symRes = IS_SYMOP(IC_RESULT(ic));
+
+ /* --> then determine their sizes */
+ sizeL = symL ? getSize(OP_SYM_TYPE(IC_LEFT(ic))) : 4;
+ sizeR = symR ? getSize(OP_SYM_TYPE(IC_RIGHT(ic))) : 4;
+ sizeRes = symRes ? getSize(OP_SYM_TYPE(IC_RESULT(ic))) : 4;
+
+ /* 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; }
-#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
+ /* 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;
+ }
+
+ /* also allow literals [-128..256) for left/right operands */
+ if (IS_VALOP(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 );
+ }
+ }
+ if (IS_VALOP( 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 );
+ }
+ }
+
+ /* 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) ))
+ {
+ 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 (IS_VALOP( 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 );
+ }
+ }
+ if (sizeL == 1 && sizeR == 1) { return TRUE; }
+ }
-#if 0
- /* support div for char/int/long */
- if((getSize(OP_SYMBOL(IC_LEFT(ic))->type ) < 0)
- && (ic->op == '/'))return TRUE;
-#endif
-
return FALSE;
}
// sym_link *result_type = operandType(result);
- /* VR -- this is an adhoc. Put here after conversation
- * with Erik Epetrich */
+ /* VR -- this is an adhoc. Put here after conversation
+ * with Erik Epetrich */
- if(ic->op == '<'
- || ic->op == '>'
- || ic->op == EQ_OP) {
+ if(ic->op == '<'
+ || ic->op == '>'
+ || ic->op == EQ_OP) {
- fprintf(stderr, "%d %s\n", __LINE__, __FUNCTION__);
- return 0;
- }
+ fprintf(stderr, "%d %s\n", __LINE__, __FUNCTION__);
+ return 0;
+ }
#if 0
/* if it is a pointer then return ok for now */
/* 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<<.
+/** $1 is the input object file (PIC16 specific) // >>always the basename<<.
$2 is always the output file.
$3 -L path and -l libraries
$l is the list of extra options that should be there somewhere...
*/
const char *pic16_linkCmd[] =
{
- "gplink", "$l", "-o \"$2\"", "\"$1\"","$3", NULL
+ "gplink", "$l", "-w", "-r", "-o \"$2\"", "\"$1\"","$3", NULL
};
{
TARGET_ID_PIC16,
"pic16",
- "MCU PIC16", /* Target name */
- "p18f452", /* 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
},
{
- 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 */
+ 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 */
},
{
- 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 */
+ 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 */
- 1, /* char */
- 2, /* short */
- 2, /* int */
- 4, /* long */
- 2, /* ptr */
- 3, /* fptr, far pointers (see Microchip) */
- 3, /* gptr */
- 1, /* bit */
- 4, /* float */
- 4 /* max */
+ /* 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
- 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
+ "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
},
{
- NULL, /* genExtraAreaDeclaration */
- NULL /* genExatrAreaLinkOptions */
+ NULL, /* genExtraAreaDeclaration */
+ NULL /* genExatrAreaLinkOptions */
},
{
- /* 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 */
+ /* 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 */
{
_pic16_getRegName,
_pic16_keywords,
_pic16_genAssemblerPreamble,
- NULL, /* no genAssemblerEnd */
+ NULL, /* no genAssemblerEnd */
_pic16_genIVT,
NULL, // _pic16_genXINIT
- NULL, /* genInitStartup */
+ NULL, /* genInitStartup */
_pic16_reset_regparm,
_pic16_regparm,
- _process_pragma, /* process a pragma */
- _pic16_mangleFunctionName, /* mangles function name */
+ _process_pragma, /* process a pragma */
+ _pic16_mangleFunctionName, /* mangles function name */
_hasNativeMulFor,
- hasExtBitOp, /* hasExtBitOp */
- oclsExpense, /* oclsExpense */
- FALSE,
- 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 */
+ hasExtBitOp, /* hasExtBitOp */
+ oclsExpense, /* oclsExpense */
+ FALSE,
+ 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