#include "ralloc.h"
#include "device.h"
#include "SDCCutil.h"
+#include "glue.h"
//#include "gen.h"
static char _defaultRules[] =
{
#include "peeph.rul"
+ ""
};
/* list of key words used by msc51 */
static char *_pic14_keywords[] =
{
- "at",
- "bit",
- "code",
- "critical",
- "data",
- "far",
- "idata",
- "interrupt",
- "near",
- "pdata",
- "reentrant",
- "sfr",
- "sbit",
- "using",
- "xdata",
- "_data",
- "_code",
- "_generic",
- "_near",
- "_xdata",
- "_pdata",
- "_idata",
- NULL
+ "at",
+ "bit",
+ "code",
+ "critical",
+ "data",
+ "far",
+ "idata",
+ "interrupt",
+ "near",
+ "pdata",
+ "reentrant",
+ "sfr",
+ "sbit",
+ "using",
+ "xdata",
+ "_data",
+ "_code",
+ "_generic",
+ "_near",
+ "_xdata",
+ "_pdata",
+ "_idata",
+ NULL
};
void pCodeInitRegisters(void);
void pic14_assignRegisters (eBBlock ** ebbs, int count);
+/* Also defined in gen.h, but the #include is commented out */
+/* for an unknowned reason. - EEP */
+void pic14_emitDebuggerSymbol (char *);
+
static int regParmFlg = 0; /* determine if we can register a parameter */
static void
_pic14_init (void)
{
- asm_addTree (&asm_asxxxx_mapping);
- pCodeInitRegisters();
+ asm_addTree (&asm_asxxxx_mapping);
+ pCodeInitRegisters();
}
static void
-_pic14_reset_regparm ()
+_pic14_reset_regparm (void)
{
- regParmFlg = 0;
+ regParmFlg = 0;
}
static int
_pic14_regparm (sym_link * l)
{
- /* for this processor it is simple
- can pass only the first parameter in a register */
- //if (regParmFlg)
- // return 0;
-
- regParmFlg++;// = 1;
- return 1;
+/* for this processor it is simple
+ can pass only the first parameter in a register */
+ //if (regParmFlg)
+ // return 0;
+
+ regParmFlg++;// = 1;
+ return 1;
}
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);
- }
-
- r.start_address = (int)floatFromVal(startVal);
- r.end_address = (int)floatFromVal(endVal);
- r.alias = (int)floatFromVal(aliasVal);
- r.bank = (r.start_address >> 7) & 3;
-
- if (strcmp(type, "RAM") == 0) {
- addMemRange(&r, 0);
- } else if (strcmp(type, "SFR") == 0) {
- addMemRange(&r, 1);
- } else {
- return 1;
- }
- }
-
- return 0;
- } else 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);
- setMaxRAM(maxRAMaddress);
- }
+ static const char *WHITE = " \t";
+ char *ptr = strtok((char *)sz, WHITE);
- return 0;
- }
- return 1;
+ 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);
+ }
+
+ r.start_address = (int)floatFromVal(startVal);
+ r.end_address = (int)floatFromVal(endVal);
+ r.alias = (int)floatFromVal(aliasVal);
+ r.bank = (r.start_address >> 7) & 3;
+
+ if (strcmp(type, "RAM") == 0) {
+ addMemRange(&r, 0);
+ } else if (strcmp(type, "SFR") == 0) {
+ addMemRange(&r, 1);
+ } else {
+ return 1;
+ }
+ }
+
+ return 0;
+ } else 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);
+ setMaxRAM(maxRAMaddress);
+ }
+
+ return 0;
+ }
+ return 1;
}
+extern char *udata_section_name;
+
static bool
_pic14_parseOptions (int *pargc, char **argv, int *i)
{
- /* TODO: allow port-specific command line options to specify
- * segment names here.
- */
- return FALSE;
+ char buf[128];
+
+ /* TODO: allow port-specific command line options to specify
+ * segment names here.
+ */
+
+ /* This is a temporary hack, to solve problems with some processors
+ * that do not have udata section. It will be changed when a more
+ * robust solution is figured out -- VR 27-11-2003 FIXME
+ */
+ strcpy(buf, "--udata-section-name");
+ if(!strncmp(buf, argv[ *i ], strlen(buf))) {
+ if(strlen(argv[ *i ]) <= strlen(buf)+1) {
+ fprintf(stderr, "WARNING: no `%s' entered\n", buf+2);
+ exit(-1);
+ } else {
+ udata_section_name = strdup( strchr(argv[*i], '=') + 1 );
+ }
+ return 1;
+ }
+
+ return FALSE;
}
static void
_pic14_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;
#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. */
+ /* 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.
- */
+ 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;
- port->mem.default_globl_map = xdata;
- }
- else
- {
- port->mem.default_local_map = data;
- port->mem.default_globl_map = data;
- }
-
- if (options.stack10bit)
- {
- if (options.model != MODEL_FLAT24)
+ fReturn = fReturn390;
+ fReturnSize = 5;
+ }
+
+ if (options.model == MODEL_LARGE)
+ {
+ port->mem.default_local_map = xdata;
+ port->mem.default_globl_map = xdata;
+ }
+ else
{
- 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;
+ port->mem.default_local_map = data;
+ port->mem.default_globl_map = data;
}
- else
+
+ if (options.stack10bit)
{
- /* 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;
+ if (options.model != MODEL_FLAT24)
+ {
+ fprintf (stderr,
+ "*** warning: 10 bit stack mode is only supported in flat24 model.\n");
+ fprintf (stderr, "\t10 bit stack mode disabled.\n");
+ options.stack10bit = 0;
+ }
+ else
+ {
+ /* Fixup the memory map for the stack; it is now in
+ * far space and requires a FPOINTER to access it.
+ */
+ istack->fmap = 1;
+ istack->ptrType = FPOINTER;
+ }
}
- }
#endif
}
static const char *
_pic14_getRegName (struct regs *reg)
{
- if (reg)
- return reg->name;
- return "err";
+ if (reg)
+ return reg->name;
+ return "err";
}
extern char *processor_base_name(void);
static void
_pic14_genAssemblerPreamble (FILE * of)
{
- char * name = processor_base_name();
-
- if(!name) {
-
- name = "p16f877";
- fprintf(stderr,"WARNING: No Pic has been selected, defaulting to %s\n",name);
- }
-
- fprintf (of, "\tlist\tp=%s\n",&name[1]);
- fprintf (of, "\tradix dec");
- fprintf (of, "\ninclude \"%s.inc\"\n",name);
+ char * name = processor_base_name();
+
+ if(!name) {
+
+ name = "p16f877";
+ fprintf(stderr,"WARNING: No Pic has been selected, defaulting to %s\n",name);
+ }
+
+ fprintf (of, "\tlist\tp=%s\n",&name[1]);
+ fprintf (of, "\tradix dec\n");
+ fprintf (of, "\tinclude \"%s.inc\"\n",name);
}
/* Generate interrupt vector table. */
static int
_pic14_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts)
{
- int i;
-
- if (options.model != MODEL_FLAT24)
- {
- /* Let the default code handle it. */
- return FALSE;
- }
-
- fprintf (of, "\t;ajmp\t__sdcc_gsinit_startup\n");
-
- /* now for the other interrupts */
- for (i = 0; i < maxInterrupts; i++)
- {
- if (interrupts[i])
+ int i;
+
+ if (options.model != MODEL_FLAT24)
{
- fprintf (of, "\t;ljmp\t%s\n\t.ds\t4\n", interrupts[i]->rname);
+ /* Let the default code handle it. */
+ return FALSE;
}
- else
+
+ fprintf (of, "\t;ajmp\t__sdcc_gsinit_startup\n");
+
+ /* now for the other interrupts */
+ for (i = 0; i < maxInterrupts; i++)
{
- fprintf (of, "\t;reti\n\t.ds\t7\n");
+ if (interrupts[i])
+ {
+ fprintf (of, "\t;ljmp\t%s\n\t.ds\t4\n", interrupts[i]->rname);
+ }
+ else
+ {
+ fprintf (of, "\t;reti\n\t.ds\t7\n");
+ }
}
- }
-
- return TRUE;
+
+ return TRUE;
}
static bool
_hasNativeMulFor (iCode *ic, sym_link *left, sym_link *right)
{
/*
- sym_link *test = NULL;
- value *val;
-*/
-
- fprintf(stderr,"checking for native mult\n");
-
- if ( ic->op != '*')
- {
- return FALSE;
- }
+sym_link *test = NULL;
+value *val;
+ */
+
+ fprintf(stderr,"checking for native mult\n");
+
+ if ( ic->op != '*')
+ {
+ return FALSE;
+ }
+
+ return TRUE;
+ /*
+ if ( IS_LITERAL (left))
+ {
+ fprintf(stderr,"left is lit\n");
+ test = left;
+ val = OP_VALUE (IC_LEFT (ic));
+ }
+ else if ( IS_LITERAL (right))
+ {
+ fprintf(stderr,"right is lit\n");
+ test = left;
+ val = OP_VALUE (IC_RIGHT (ic));
+ }
+ else
+ {
+ fprintf(stderr,"oops, neither is lit so no\n");
+ return FALSE;
+ }
+
+ if ( getSize (test) <= 2)
+ {
+ fprintf(stderr,"yep\n");
+ return TRUE;
+ }
+ fprintf(stderr,"nope\n");
+
+ return FALSE;
+ */
+}
- return TRUE;
-/*
- if ( IS_LITERAL (left))
- {
- fprintf(stderr,"left is lit\n");
- test = left;
- val = OP_VALUE (IC_LEFT (ic));
- }
- else if ( IS_LITERAL (right))
- {
- fprintf(stderr,"right is lit\n");
- test = left;
- val = OP_VALUE (IC_RIGHT (ic));
- }
- else
- {
- fprintf(stderr,"oops, neither is lit so no\n");
- return FALSE;
- }
+/* 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;
+}
- if ( getSize (test) <= 2)
- {
- fprintf(stderr,"yep\n");
- return TRUE;
- }
- fprintf(stderr,"nope\n");
+/* 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 FALSE;
-*/
+ return 0;
}
/** $1 is always the basename.
- $2 is always the output file.
- $3 varies
- $l is the list of extra options that should be there somewhere...
- MUST be terminated with a NULL.
+$2 is always the output file.
+$3 varies
+$l is the list of extra options that should be there somewhere...
+MUST be terminated with a NULL.
*/
static const char *_linkCmd[] =
{
- "gplink", "", "\"$1.o\"", NULL
+ "gplink", "-o $2", "\"$1.o\"", "$l", NULL
};
static const char *_asmCmd[] =
{
- "gpasm", "-c", "\"$1.asm\"", NULL
-
+ "gpasm", "$l", "-c", "\"$1.asm\"", NULL
+
};
/* Globals */
PORT pic_port =
{
- TARGET_ID_PIC,
- "pic14",
- "MCU pic", /* Target name */
- "", /* Processor */
- {
- TRUE, /* Emit glue around main */
- MODEL_SMALL | MODEL_LARGE | MODEL_FLAT24,
- MODEL_SMALL
- },
- {
- _asmCmd,
- NULL,
- NULL,
- NULL,
- //"-plosgffc", /* Options with debug */
- //"-plosgff", /* Options without debug */
- 0,
- ".asm",
- NULL /* no do_assemble function */
- },
- {
- _linkCmd,
- NULL,
- NULL,
- ".o"
- },
- {
- _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)
- */
- },
- {
- "XSEG (XDATA)",
- "STACK (DATA)",
- "code",
- "DSEG (DATA)",
- "ISEG (DATA)",
- "XSEG (XDATA)",
- "BSEG (BIT)",
- "RSEG (DATA)",
- "GSINIT (CODE)",
- "udata_ovr",
- "GSFINAL (CODE)",
- "HOME (CODE)",
- NULL, // xidata
- NULL, // xinit
- NULL,
- NULL,
- 1 // code is read only
- },
- { NULL, NULL },
- {
- +1, 1, 4, 1, 1, 0
- },
- /* pic14 has an 8 bit mul */
- {
- 1, -1
- },
- "_",
- _pic14_init,
- _pic14_parseOptions,
- NULL,
- _pic14_finaliseOptions,
- _pic14_setDefaultOptions,
- pic14_assignRegisters,
- _pic14_getRegName,
- _pic14_keywords,
- _pic14_genAssemblerPreamble,
- NULL, /* no genAssemblerEnd */
- _pic14_genIVT,
- NULL, // _pic14_genXINIT
- _pic14_reset_regparm,
- _pic14_regparm,
- _process_pragma, /* process a pragma */
- NULL,
- _hasNativeMulFor,
- 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 */
- PORT_MAGIC
+ TARGET_ID_PIC,
+ "pic14",
+ "MCU pic", /* Target name */
+ "", /* Processor */
+ {
+ picglue,
+ TRUE, /* Emit glue around main */
+ MODEL_SMALL | MODEL_LARGE | MODEL_FLAT24,
+ MODEL_SMALL
+ },
+ {
+ _asmCmd,
+ NULL,
+ NULL,
+ NULL,
+ //"-plosgffc", /* Options with debug */
+ //"-plosgff", /* Options without debug */
+ 0,
+ ".asm",
+ NULL /* no do_assemble function */
+ },
+ {
+ _linkCmd,
+ NULL,
+ NULL,
+ ".o",
+ 0
+ },
+ {
+ _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)
+ */
+ },
+ {
+ "XSEG (XDATA)",
+ "STACK (DATA)",
+ "code",
+ "DSEG (DATA)",
+ "ISEG (DATA)",
+ NULL, /* pdata */
+ "XSEG (XDATA)",
+ "BSEG (BIT)",
+ "RSEG (DATA)",
+ "GSINIT (CODE)",
+ "udata_ovr",
+ "GSFINAL (CODE)",
+ "HOME (CODE)",
+ NULL, // xidata
+ NULL, // xinit
+ NULL,
+ NULL,
+ 1 // code is read only
+ },
+ { NULL, NULL },
+ {
+ +1, 1, 4, 1, 1, 0
+ },
+ /* pic14 has an 8 bit mul */
+ {
+ 1, -1
+ },
+ {
+ pic14_emitDebuggerSymbol
+ },
+ {
+ 255/3, /* maxCount */
+ 3, /* sizeofElement */
+ /* The rest of these costs are bogus. They approximate */
+ /* the behavior of src/SDCCicode.c 1.207 and earlier. */
+ {4,4,4}, /* sizeofMatchJump[] */
+ {0,0,0}, /* sizeofRangeCompare[] */
+ 0, /* sizeofSubtract */
+ 3, /* sizeofDispatch */
+ },
+ "_",
+ _pic14_init,
+ _pic14_parseOptions,
+ NULL,
+ NULL,
+ _pic14_finaliseOptions,
+ _pic14_setDefaultOptions,
+ pic14_assignRegisters,
+ _pic14_getRegName,
+ _pic14_keywords,
+ _pic14_genAssemblerPreamble,
+ NULL, /* no genAssemblerEnd */
+ _pic14_genIVT,
+ NULL, // _pic14_genXINIT
+ NULL, /* genInitStartup */
+ _pic14_reset_regparm,
+ _pic14_regparm,
+ _process_pragma, /* process a pragma */
+ NULL,
+ _hasNativeMulFor,
+ hasExtBitOp, /* hasExtBitOp */
+ oclsExpense, /* oclsExpense */
+ FALSE,
+// TRUE, /* little endian */
+ FALSE, /* little endian - PIC code enumlates big endian */
+ 0, /* leave lt */
+ 0, /* leave gt */
+ 1, /* transform <= to ! > */
+ 1, /* transform >= to ! < */
+ 1, /* transform != to !(a == b) */
+ 0, /* leave == */
+ FALSE, /* No array initializer support. */
+ 0, /* no CSE cost estimation yet */
+ NULL, /* no builtin functions */
+ GPOINTER, /* treat unqualified pointers as "generic" pointers */
+ 1, /* reset labelKey to 1 */
+ 1, /* globals & local static allowed */
+ PORT_MAGIC
};
projects / fw / sdcc / blobdiff