"bit",
"code",
"critical",
+ "register",
"data",
"far",
"idata",
static void
_pic16_init (void)
{
- asm_addTree (&asm_asxxxx_mapping);
- pic16_pCodeInitRegisters();
- maxInterrupts = 2;
-
- /* 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; /* default location of interrupt vectors */
- pic16_options.nodefaultlibs = 0; /* link default libraries */
- pic16_options.dumpcalltree = 0;
+ asm_addTree (&asm_asxxxx_mapping);
+ pic16_pCodeInitRegisters();
+ maxInterrupts = 2;
}
static void
-_pic16_reset_regparm ()
+_pic16_reset_regparm (void)
{
- regParmFlg = 0;
+ regParmFlg = 0;
}
static int
_pic16_regparm (sym_link * l)
{
- /* for this processor it is simple
- * can pass only the first parameter in a register */
-#if 0
- if(regParmFlg)return 0;
- regParmFlg = 1;
- return 1;
-#else
- regParmFlg++;// = 1;
- return 1;
-#endif
+ /* 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;
+ }
}
maxRAMaddress = (int)floatFromVal(maxRAMVal);
pic16_setMaxRAM(maxRAMaddress);
}
+
+ return 0;
}
/* #pragma stack [stack-position] [stack-len] */
if(stackLen < 1) {
stackLen = 64;
- fprintf(stderr, "%s:%d setting stack to default size 0x%x\n", __FILE__, __LINE__, stackLen);
+ fprintf(stderr, "%s:%d: warning: setting stack to default size %d (0x%04x)\n",
+ filename, lineno-1, stackLen, stackLen);
+
+// fprintf(stderr, "%s:%d setting stack to default size %d\n", __FILE__, __LINE__, stackLen);
}
// fprintf(stderr, "Initializing stack pointer at 0x%x len 0x%x\n", stackPos, stackLen);
value *addr;
absS = Safe_calloc(1, sizeof(absSym));
- absS->name = Safe_strdup( symname );
+ sprintf(absS->name, "_%s", symname);
+
addr = constVal( location );
absS->address = (unsigned int)floatFromVal( addr );
+ if((absS->address % 2) != 0) {
+ absS->address--;
+ fprintf(stderr, "%s:%d: warning: code memory locations should be word aligned, will locate to 0x%06x instead\n",
+ filename, lineno-1, absS->address);
+ }
+
addSet(&absSymSet, absS);
- fprintf(stderr, "%s:%d symbol %s will be placed in location 0x%06x in code memory\n",
- __FILE__, __LINE__, symname, absS->address);
+// fprintf(stderr, "%s:%d symbol %s will be placed in location 0x%06x in code memory\n",
+// __FILE__, __LINE__, symname, absS->address);
return 0;
}
if(startsWith(ptr, "udata")) {
char *sectname = strtok((char *)NULL, WHITE);
char *symname = strtok((char *)NULL, WHITE);
+ symbol *nsym;
sectSym *ssym;
sectName *snam;
int found=0;
while(symname) {
-
ssym = Safe_calloc(1, sizeof(sectSyms));
ssym->name = Safe_calloc(1, strlen(symname)+2);
sprintf(ssym->name, "_%s", symname);
addSet(§Syms, ssym);
+ nsym = newSymbol(symname, 0);
+ strcpy(nsym->rname, ssym->name);
+ checkAddSym(&publics, nsym);
+
found = 0;
for(snam=setFirstItem(sectNames);snam;snam=setNextItem(sectNames)) {
if(!strcmp(sectname, snam->name)){ found=1; break; }
#define NO_DEFLIBS "--nodefaultlibs"
#define MPLAB_COMPAT "--mplab-comp"
+#define NL_OPT "--nl="
+#define USE_CRT "--use-crt="
+
char *alt_asm=NULL;
char *alt_link=NULL;
extern int pic16_ralloc_debug;
extern int pic16_pcode_verbose;
+int pic16_fstack=0;
int pic16_enable_peeps=0;
+int pic16_nl=0; /* 0 for LF, 1 for CRLF */
OPTION pic16_optionsTable[]= {
{ 0, NO_DEFLIBS, &pic16_options.nodefaultlibs, "do not link default libraries when linking"},
{ 0, "--pomit-config-words", &pic16_options.omit_configw, "omit the generation of configuration words"},
{ 0, "--pomit-ivt", &pic16_options.omit_ivt, "omit the generation of the Interrupt Vector Table"},
{ 0, "--pleave-reset-vector",&pic16_options.leave_reset, "when omitting IVT leave RESET vector"},
- { 0, STACK_MODEL, NULL, "use stack model 'small' (default) or 'large'"},
+ { 0, STACK_MODEL, NULL, "use stack model 'small' (default) or 'large'"},
{ 0, "--debug-xtra", &pic16_debug_verbose, "show more debug info in assembly output"},
{ 0, "--debug-ralloc", &pic16_ralloc_debug, "dump register allocator debug file *.d"},
{ 0, IVT_LOC, NULL, "<nnnn> interrupt vector table location"},
{ 0, "--calltree", &pic16_options.dumpcalltree, "dump call tree in .calltree file"},
{ 0, MPLAB_COMPAT, &pic16_mplab_comp, "enable compatibility mode for MPLAB utilities (MPASM/MPLINK)"},
+ { 0, "--fstack", &pic16_fstack, "enable stack optimizations"},
+ { 0, NL_OPT, NULL, "new line, \"lf\" or \"crlf\""},
+ { 0, USE_CRT, NULL, "use <crt-o> run-time initialization module"},
+ { 0, "--no-crt", &pic16_options.no_crt, "do not link any default run-time initialization module"},
{ 0, NULL, NULL, NULL}
};
if(ISOPT(STACK_MODEL)) {
stkmodel = getStringArg(STACK_MODEL, argv, i, *pargc);
- if(STRCASECMP(stkmodel, "small"))pic16_options.stack_model = 0;
- else if(STRCASECMP(stkmodel, "large"))pic16_options.stack_model = 1;
+ if(!STRCASECMP(stkmodel, "small"))pic16_options.stack_model = 0;
+ else if(!STRCASECMP(stkmodel, "large"))pic16_options.stack_model = 1;
else {
fprintf(stderr, "Unknown stack model: %s", stkmodel);
exit(-1);
pic16_options.ivt_loc = getIntArg(IVT_LOC, argv, i, *pargc);
return TRUE;
}
-
+
+ if(ISOPT(NL_OPT)) {
+ char *tmp;
+
+ tmp = Safe_strdup( getStringArg(NL_OPT, argv, i, *pargc) );
+ if(!STRCASECMP(tmp, "lf"))pic16_nl = 0;
+ else if(!STRCASECMP(tmp, "crlf"))pic16_nl = 1;
+ else {
+ fprintf(stderr, "invalid termination character id\n");
+ exit(-1);
+ }
+ return TRUE;
+ }
+
+ if(ISOPT(USE_CRT)) {
+ pic16_options.no_crt = 0;
+ pic16_options.crt_name = Safe_strdup( getStringArg(USE_CRT, argv, i, *pargc) );
+
+ return TRUE;
+ }
+
return FALSE;
}
+extern set *userIncDirsSet;
+
static void _pic16_initPaths(void)
{
char pic16incDir[512];
char pic16libDir[512];
- set *pic16incDirsSet;
- set *pic16libDirsSet;
+ set *pic16incDirsSet=NULL;
+ set *pic16libDirsSet=NULL;
char devlib[512];
- setMainValue("mcu", pic16->name[2] );
- addSet(&preArgvSet, Safe_strdup("-D{mcu}"));
+ setMainValue("mcu", pic16->name[2] );
+ addSet(&preArgvSet, Safe_strdup("-D{mcu}"));
- sprintf(pic16incDir, "%s%cpic16", INCLUDE_DIR_SUFFIX, DIR_SEPARATOR_CHAR);
- sprintf(pic16libDir, "%s%cpic16", LIB_DIR_SUFFIX, DIR_SEPARATOR_CHAR);
+ 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);
- mergeSets(&includeDirsSet, pic16incDirsSet);
- }
-
- if(!options.nostdlib) {
- /* setup pic16 library directory */
- pic16libDirsSet = appendStrSet(dataDirsSet, NULL, pic16libDir);
- mergeSets(&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));
- }
+
+ 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);
+ }
+
+ 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" ));
+ }
}
extern set *linkOptionsSet;
*
*/
- sprintf(lfrm, "{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");
if(fullSrcFileName) {
sprintf(temp, "%s.o", dstFileName);
-// shash_add(&linkValues, "srcofile", temp);
- addSetHead(&relFilesSet, temp);
+// addSetHead(&relFilesSet, Safe_strdup(temp));
+ shash_add(&linkValues, "user_ofile", temp);
}
-// shash_add(&linkValues, "spec_ofiles", "crt0i.o");
+ if(!pic16_options.no_crt)
+ shash_add(&linkValues, "spec_ofiles", pic16_options.crt_name);
+
shash_add(&linkValues, "ofiles", joinStrSet(relFilesSet));
shash_add(&linkValues, "libs", joinStrSet(libFilesSet));
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.float_rent = 1;
-// options.intlong_rent = 1;
+ options.all_callee_saves = 1; // always callee saves
+
+#if 0
+ options.float_rent = 1;
+ options.intlong_rent = 1;
+#endif
- if(alt_asm && strlen(alt_asm))
- pic16_asmCmd[0] = alt_asm;
+ if(alt_asm && strlen(alt_asm))
+ pic16_asmCmd[0] = alt_asm;
- if(alt_link && strlen(alt_link))
- pic16_linkCmd[0] = alt_link;
+ if(alt_link && strlen(alt_link))
+ pic16_linkCmd[0] = alt_link;
+
+ if(!pic16_options.no_crt) {
+ pic16_options.omit_ivt = 1;
+ pic16_options.leave_reset = 0;
+ }
}
-/* all the rest is commented ifdef'd out */
#if 0
- /* Hack-o-matic: if we are using the flat24 model,
- * adjust pointer sizes.
- */
- if (options.model == MODEL_FLAT24)
- {
-
- fprintf (stderr, "*** WARNING: you should use the '-mds390' option "
- "for DS80C390 support. This code generator is "
- "badly out of date and probably broken.\n");
-
- port->s.fptr_size = 3;
- port->s.gptr_size = 4;
- port->stack.isr_overhead++; /* Will save dpx on ISR entry. */
-#if 1
- port->stack.call_overhead++; /* This acounts for the extra byte
- * of return addres on the stack.
- * but is ugly. There must be a
- * better way.
- */
-#endif
- fReturn = fReturn390;
- fReturnSize = 5;
- }
-
if (options.model == MODEL_LARGE)
{
port->mem.default_local_map = xdata;
static void
_pic16_setDefaultOptions (void)
{
- /* initialize to defaults section locations, names and addresses */
- pic16_sectioninfo.at_udata = "udata";
-
- /* 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;
+ options.stackAuto = 0; /* implicit declaration */
+ /* port is not capable yet to allocate separate registers
+ * dedicated for passing certain parameters */
+
+ /* initialize to defaults section locations, names and addresses */
+ pic16_sectioninfo.at_udata = "udata";
+
+ /* set pic16 port options to defaults */
+ pic16_options.no_banksel = 0;
+ pic16_options.opt_banksel = 0;
+ pic16_options.omit_configw = 0;
+ pic16_options.omit_ivt = 0;
+ pic16_options.leave_reset = 0;
+ pic16_options.stack_model = 0; /* 0 for 'small', 1 for 'large' */
+ pic16_options.ivt_loc = 0x000000;
+ pic16_options.nodefaultlibs = 0;
+ pic16_options.dumpcalltree = 0;
+ pic16_options.crt_name = "crt0i.o"; /* the default crt to link */
+ pic16_options.no_crt = 0; /* use crt by default */
+ pic16_options.ip_stack = 1; /* set to 1 to enable ipop/ipush for stack */
}
static const char *
#if 1
/* multiplication is fixed */
/* support mul for char/int/long */
- if((getSize(OP_SYMBOL(IC_LEFT(ic))->type ) <= 4)
- && (ic->op == '*'))return TRUE;
+ if((ic->op == '*')
+ && (getSize(OP_SYMBOL(IC_LEFT(ic))->type ) < 2))return TRUE;
#endif
#if 0
/* support div for char/int/long */
- if((getSize(OP_SYMBOL(IC_LEFT(ic))->type ) <= 0)
+ if((getSize(OP_SYMBOL(IC_LEFT(ic))->type ) < 0)
&& (ic->op == '/'))return TRUE;
#endif
4, /* long */
2, /* ptr */
3, /* fptr, far pointers (see Microchip) */
- 2, /* gptr */
+ 3, /* gptr */
1, /* bit */
4, /* float */
4 /* max */
"CSEG (CODE)", // code
"DSEG (DATA)", // data
"ISEG (DATA)", // idata
+ NULL, // pdata
"XSEG (XDATA)", // xdata
"BSEG (BIT)", // bit
"RSEG (DATA)", // reg
{
pic16_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,
projects / fw / sdcc / blobdiff