-/** @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"
"_xdata",
"_pdata",
"_idata",
+ "_naked",
NULL
};
+
+pic16_sectioninfo_t pic16_sectioninfo;
+
+
+extern char *pic16_processor_base_name(void);
+
void pic16_pCodeInitRegisters(void);
void pic16_assignRegisters (eBBlock ** ebbs, int count);
static int regParmFlg = 0; /* determine if we can register a parameter */
+pic16_options_t pic16_options;
+
static void
_pic16_init (void)
{
- asm_addTree (&asm_asxxxx_mapping);
- pic16_pCodeInitRegisters();
+ asm_addTree (&asm_asxxxx_mapping);
+ pic16_pCodeInitRegisters();
+ maxInterrupts = 2;
+
+
+ /* set pic16 port options to defaults */
+ pic16_options.gen_banksel = 0;
+ pic16_options.opt_banksel = 0;
+ pic16_options.omit_configw = 0;
+ pic16_options.omit_ivt = 0;
+ pic16_options.leave_reset = 0;
+ pic16_options.enable_stack = 0;
+ pic16_options.stack_model = 0; /* 0 for 'small', 1 for 'large' */
}
static void
return 1;
}
+
+set *absSymSet;
+
static int
_process_pragma(const char *sz)
{
static const char *WHITE = " \t";
+
char *ptr = strtok((char *)sz, WHITE);
- if (startsWith (ptr, "memmap"))
- {
- 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);
+ if (startsWith (ptr, "maxram")) {
+ char *maxRAM = strtok((char *)NULL, WHITE);
+
+ if (maxRAM != (char *)NULL) {
+ int maxRAMaddress;
+ value *maxRAMVal;
+
+ maxRAMVal = constVal(maxRAM);
+ maxRAMaddress = (int)floatFromVal(maxRAMVal);
+ pic16_setMaxRAM(maxRAMaddress);
+ }
}
+
+ if(startsWith(ptr, "stack")) {
+ char *stackPosS = strtok((char *)NULL, WHITE);
+ value *stackPosVal;
+
+// fprintf(stderr, "Initializing stack pointer to 0x%x\n", (int)floatFromVal(constVal(stackPos)));
+ stackPosVal = constVal( stackPosS );
+ stackPos = (unsigned int)floatFromVal( stackPosVal );
- 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;
+ return 0;
}
- }
+
+ if(startsWith(ptr, "code")) {
+ char *symname = strtok((char *)NULL, WHITE);
+ char *location = strtok((char *)NULL, WHITE);
+ absSym *absS;
+ value *addr;
- return 0;
- } else if (startsWith (ptr, "maxram")) {
- char *maxRAM = strtok((char *)NULL, WHITE);
+ absS = Safe_calloc(1, sizeof(absSym));
+ absS->name = Safe_strdup( symname );
+ addr = constVal( location );
+ absS->address = (unsigned int)floatFromVal( addr );
- if (maxRAM != (char *)NULL) {
- int maxRAMaddress;
- value *maxRAMVal;
+ 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;
+ }
- maxRAMVal = constVal(maxRAM);
- maxRAMaddress = (int)floatFromVal(maxRAMVal);
- pic16_setMaxRAM(maxRAMaddress);
- }
-
- return 0;
- }
return 1;
}
+#define REP_UDATA "--preplace-udata-with="
+#define REP_UDATAACS "--preplace-udata-acs-with="
+#define REP_UDATAOVR "--preplace-udata-ovr-with="
+#define REP_UDATASHR "--preplace-udata-sht-with="
+
+#define NAME_CODE "--psection-code-name="
+#define NAME_IDATA "--psection-idata-name="
+#define NAME_UDATA "--psection-udata-name="
+#define NAME_UDATAACS "--psection-udata-acs-name="
+#define NAME_UDATAOVR "--psection-udata-ovr-name="
+#define NAME_UDATASHR "--psection-udata-shr-name="
+
+#define ADDR_CODE "--psection-code-addr="
+#define ADDR_IDATA "--psection-idata-addr="
+#define ADDR_UDATA "--psection-udata-addr="
+#define ADDR_UDATAACS "--psection-udata-acs-addr="
+#define ADDR_UDATAOVR "--psection-udata-ovr-addr="
+#define ADDR_UDATASHR "--psection-udata-shr-addr="
+
+#define STACK_MODEL "--pstack-model="
+#define OPT_BANKSEL "--obanksel="
+
+
+extern int pic16_debug_verbose;
+extern int pic16_ralloc_debug;
+extern int pic16_pcode_verbose;
+
+OPTION pic16_optionsTable[]= {
+ { 0, "--pgen-banksel", &pic16_options.gen_banksel, "generate BANKSEL assembler directives"},
+ { 0, OPT_BANKSEL, NULL, "set banksel optimization level (default=0 no)"},
+ { 0, "--pomit-config-words", &pic16_options.omit_configw, "omit the generation of configuration words"},
+ { 0, "--pomit-ivt", &pic16_options.omit_ivt, "omit the generation of the Interrupt Vector Table"},
+ { 0, "--pleave-reset-vector",&pic16_options.leave_reset, "when omitting IVT leave RESET vector"},
+ { 0, "--penable-stack", &pic16_options.enable_stack, "enable the use of stack"},
+ { 0, STACK_MODEL, NULL, "use stack model 'small' (default) or 'large'"},
+
+ { 0, "--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"},
+
+#if 0
+ /* these may not be in any use -- VR */
+ { 0, AT_UDATAACS, NULL, "Emit udata_acs variables at another section"},
+ { 0, AT_UDATAOVR, NULL, "Emit udata_ovr variables at another section"},
+ { 0, AT_UDATASHR, NULL, "Emit udata_shr variables at another section"},
+#endif
+
+#if 0
+ /* commented out for the time being -- VR */
+ { 0, NAME_CODE, NULL, "Set code section name[,address]"},
+ { 0, NAME_IDATA, NULL, "Set idata section name[,address]"},
+ { 0, NAME_UDATA, NULL, "Set udata section name[,address]"},
+ { 0, NAME_UDATAACS, NULL, "Set udata_acs section name[,address]"},
+ { 0, NAME_UDATAOVR, NULL, "Set udata_ovr section name[,address]"},
+ { 0, NAME_UDATASHR, NULL, "Set udata_shr section name[,address]"},
+
+ { 0, ADDR_CODE, NULL, "Set code section address"},
+ { 0, ADDR_IDATA, NULL, "Set idata section address"},
+ { 0, ADDR_UDATA, NULL, "Set udata section address"},
+ { 0, ADDR_UDATAACS, NULL, "Set udata_acs section address"},
+ { 0, ADDR_UDATAOVR, NULL, "Set udata_ovr section address"},
+ { 0, ADDR_UDATASHR, NULL, "Set udata_shr section address"},
+#endif
+
+ { 0, 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);
+
static bool
_pic16_parseOptions (int *pargc, char **argv, int *i)
{
+ int j=0;
+// set *tset;
+
/* 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)++;
+ return TRUE;
+ }
+ j++;
+ }
+
+
+ if(ISOPT(STACK_MODEL)) {
+ switch(*getStringArg(STACK_MODEL, argv, i, *pargc)) {
+ case 's': pic16_options.stack_model = 0; break;
+ case 'l': pic16_options.stack_model = 1; break;
+
+ default:
+ fprintf(stderr, "Unknown stack model");
+ exit(-1);
+ }
+ 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(AT_UDATAACS)) {
+ pic16_sectioninfo.at_udataacs = Safe_strdup( getStringArg(AT_UDATAACS, argv, i, *pargc));
+ return TRUE;
+ }
+
+ if(ISOPT(AT_UDATAOVR)) {
+ pic16_sectioninfo.at_udataovr = Safe_strdup( getStringArg(AT_UDATAOVR, argv, i, *pargc));
+ return TRUE;
+ }
+
+ if(ISOPT(AT_UDATASHR)) {
+ pic16_sectioninfo.at_udatashr = Safe_strdup( getStringArg(AT_UDATASHR, argv, i, *pargc));
+ return TRUE;
+ }
+*/
+
+#if 0
+ if(ISOPT(ADDR_CODE)) {
+ pic16_sectioninfo.addr_code = getIntArg(ADDR_CODE, argv, i, *pargc);
+ return TRUE;
+ }
+
+ if(ISOPT(ADDR_IDATA)) {
+ pic16_sectioninfo.addr_idata = getIntArg(ADDR_IDATA, argv, i, *pargc);
+ return TRUE;
+ }
+
+ if(ISOPT(ADDR_UDATA)) {
+ pic16_sectioninfo.addr_udata = getIntArg(ADDR_UDATA, argv, i, *pargc);
+ return TRUE;
+ }
+
+ if(ISOPT(ADDR_UDATAACS)) {
+ pic16_sectioninfo.addr_udataacs = getIntArg(ADDR_UDATAACS, argv, i, *pargc);
+ return TRUE;
+ }
+
+ if(ISOPT(ADDR_UDATAOVR)) {
+ pic16_sectioninfo.addr_udataovr = getIntArg(ADDR_UDATAOVR, argv, i, *pargc);
+ return TRUE;
+ }
+
+ if(ISOPT(ADDR_UDATASHR)) {
+ pic16_sectioninfo.addr_udatashr = getIntArg(ADDR_UDATASHR, argv, i, *pargc);
+ return TRUE;
+ }
+
+ tset = newSet();
+
+ if(ISOPT(NAME_CODE)) {
+ setParseWithComma(&tset, getStringArg(NAME_CODE, argv, i, *pargc));
+ if(elementsInSet(tset) > 0)
+ pic16_sectioninfo.name_code = Safe_strdup( (char *)indexSet(tset, 0));
+ if(elementsInSet(tset) > 1)
+ pic16_sectioninfo.addr_code = atoi( (char *)indexSet(tset, 1));
+ return TRUE;
+ }
+
+ if(ISOPT(NAME_IDATA)) {
+ setParseWithComma(&tset, getStringArg(NAME_IDATA, argv, i, *pargc));
+ if(elementsInSet(tset) > 0)
+ pic16_sectioninfo.name_idata = Safe_strdup( (char *)indexSet(tset, 0));
+ if(elementsInSet(tset) > 1)
+ pic16_sectioninfo.addr_idata = atoi( (char *)indexSet(tset, 1));
+ return TRUE;
+ }
+
+ if(ISOPT(NAME_UDATA)) {
+ setParseWithComma(&tset, getStringArg(NAME_UDATA, argv, i, *pargc));
+ if(elementsInSet(tset) > 0)
+ pic16_sectioninfo.name_udata = Safe_strdup( (char *)indexSet(tset, 0));
+ if(elementsInSet(tset) > 1)
+ pic16_sectioninfo.addr_udata = atoi( (char *)indexSet(tset, 1));
+ return TRUE;
+ }
+
+ if(ISOPT(NAME_UDATAACS)) {
+ setParseWithComma(&tset, getStringArg(NAME_UDATAACS, argv, i, *pargc));
+ if(elementsInSet(tset) > 0)
+ pic16_sectioninfo.name_udataacs = Safe_strdup( (char *)indexSet(tset, 0));
+ if(elementsInSet(tset) > 1)
+ pic16_sectioninfo.addr_udataacs = atoi( (char *)indexSet(tset, 1));
+ return TRUE;
+ }
+
+ if(ISOPT(NAME_UDATAOVR)) {
+ setParseWithComma(&tset, getStringArg(NAME_UDATAOVR, argv, i, *pargc));
+ if(elementsInSet(tset) > 0)
+ pic16_sectioninfo.name_udataovr = Safe_strdup( (char *)indexSet(tset, 0));
+ if(elementsInSet(tset) > 1)
+ pic16_sectioninfo.addr_udataovr = atoi( (char *)indexSet(tset, 1));
+ return TRUE;
+ }
+
+ if(ISOPT(NAME_UDATASHR)) {
+ setParseWithComma(&tset, getStringArg(NAME_UDATASHR, argv, i, *pargc));
+ if(elementsInSet(tset) > 0)
+ pic16_sectioninfo.name_udatashr = Safe_strdup( (char *)indexSet(tset, 0));
+ if(elementsInSet(tset) > 1)
+ pic16_sectioninfo.addr_udatashr = atoi( (char *)indexSet(tset, 1));
+ return TRUE;
+ }
+
+ deleteSet( &tset );
+#endif
+
return FALSE;
}
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;
+ options.all_callee_saves = 1; // always callee saves
+
+ setMainValue("mcu", pic16_processor_base_name() );
+ addSet(&preArgvSet, Safe_strdup("-DMCU={mcu}"));
+}
+
+
+/* all the rest is commented ifdef'd out */
#if 0
/* Hack-o-matic: if we are using the flat24 model,
* adjust pointer sizes.
}
}
#endif
-}
+
static void
_pic16_setDefaultOptions (void)
{
+ /* initialize to defaults section locations, names and addresses */
+ pic16_sectioninfo.at_udata = "udata";
+ pic16_sectioninfo.at_udataacs = "udata_acs";
+ pic16_sectioninfo.at_udataovr = "udata_ovr";
+ pic16_sectioninfo.at_udatashr = "udata_shr";
+
+ /* initialize to nothing, so let linker decide about their names */
+ pic16_sectioninfo.name_code =
+ pic16_sectioninfo.name_idata =
+ pic16_sectioninfo.name_udata =
+ pic16_sectioninfo.name_udataacs =
+ pic16_sectioninfo.name_udataovr =
+ pic16_sectioninfo.name_udatashr = "";
+
+ /* initialize to -1, so let linker decide about their address */
+ pic16_sectioninfo.addr_code =
+ pic16_sectioninfo.addr_idata =
+ pic16_sectioninfo.addr_udata =
+ pic16_sectioninfo.addr_udataacs =
+ pic16_sectioninfo.addr_udataovr =
+ pic16_sectioninfo.addr_udatashr = -1;
}
static const char *
return "err";
}
-extern char *pic16_processor_base_name(void);
-static void
-_pic16_genAssemblerPreamble (FILE * of)
+#if 1
+static char *_pic16_mangleFunctionName(char *sz)
{
- char * name = pic16_processor_base_name();
+// fprintf(stderr, "mangled function name: %s\n", sz);
- if(!name) {
+ return sz;
+}
+#endif
- 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);
+static void
+_pic16_genAssemblerPreamble (FILE * of)
+{
+ char *name = pic16_processor_base_name();
-#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(!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_options.omit_configw) {
+ fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300001, pic16_getConfigWord(0x300001));
+ fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300002, pic16_getConfigWord(0x300002));
+ fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300003, pic16_getConfigWord(0x300003));
+ fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300005, pic16_getConfigWord(0x300005));
+ fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300006, pic16_getConfigWord(0x300006));
+ fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300008, pic16_getConfigWord(0x300008));
+ fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x300009, pic16_getConfigWord(0x300009));
+ fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x30000a, pic16_getConfigWord(0x30000a));
+ fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x30000b, pic16_getConfigWord(0x30000b));
+ fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x30000c, pic16_getConfigWord(0x30000c));
+ fprintf (of, "\t__config 0x%x,0x%hhx\n", 0x30000d, pic16_getConfigWord(0x30000d));
+ }
+
fprintf (of, "\tradix dec\n");
}
static int
_pic16_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts)
{
- int i;
+ /* PIC18F family has only two interrupts, the high and the low
+ * priority interrupts, which reside at 0x0008 and 0x0018 respectively - VR */
- if (options.model != MODEL_FLAT24)
- {
- /* Let the default code handle it. */
- return FALSE;
- }
-
- fprintf (of, "\t;ajmp\t__sdcc_gsinit_startup\n");
-
- /* now for the other interrupts */
- for (i = 0; i < maxInterrupts; i++)
- {
- if (interrupts[i])
- {
- fprintf (of, "\t;ljmp\t%s\n\t.ds\t4\n", interrupts[i]->rname);
+ 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");
}
- else
- {
- fprintf (of, "\t;reti\n\t.ds\t7\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");
+ }
}
- }
return TRUE;
}
*/
}
+/* 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 always the basename.
$2 is always the output file.
$3 varies
*/
static const char *_asmCmd[] =
{
- "gpasm", "-c -I/usr/local/share/gputils/header", "\"$1.asm\"", NULL
+ "gpasm", "$l", "-c", "\"$1.asm\"", NULL
};
MODEL_SMALL
},
{
- _asmCmd,
- NULL,
- NULL,
- NULL,
- //"-plosgffc", /* Options with debug */
- //"-plosgff", /* Options without debug */
- 0,
- ".asm",
+ _asmCmd, /* assembler command and arguments */
+ NULL, /* alternate macro based form */
+ NULL, /* 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"
+ _linkCmd, /* linker command and arguments */
+ NULL, /* alternate macro based form */
+ 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) */
+ 2, /* gptr */
+ 1, /* bit */
+ 4, /* float */
+ 4 /* max */
+ },
+ {
+ "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 1=yes
},
{
- "XSEG (XDATA)",
- "STACK (DATA)",
- "CSEG (CODE)",
- "DSEG (DATA)",
- "ISEG (DATA)",
- "XSEG (XDATA)",
- "BSEG (BIT)",
- "RSEG (DATA)",
- "GSINIT (CODE)",
- "OSEG (OVR,DATA)",
- "GSFINAL (CODE)",
- "HOME (CODE)",
- NULL, // xidata
- NULL, // xinit
- NULL,
- NULL,
- 1 // 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 */
{
"_",
_pic16_init,
_pic16_parseOptions,
- NULL,
+ pic16_optionsTable,
_pic16_finaliseOptions,
_pic16_setDefaultOptions,
pic16_assignRegisters,
_pic16_reset_regparm,
_pic16_regparm,
_process_pragma, /* process a pragma */
- NULL,
+ _pic16_mangleFunctionName, /* mangles function name */
_hasNativeMulFor,
- FALSE,
+ hasExtBitOp, /* hasExtBitOp */
+ oclsExpense, /* oclsExpense */
+ FALSE,
+ TRUE, /* little endian */
0, /* leave lt */
0, /* leave gt */
1, /* transform <= to ! > */
projects / fw / sdcc / blobdiff