it easier to set a breakpoint using the debugger.
*/
#include "common.h"
+#include "MySystem.h"
+#include "SDCCmacro.h"
+
+#include "device.h"
+#include "gen.h"
+#include "glue.h"
#include "main.h"
+#include "pcode.h"
#include "ralloc.h"
-#include "device.h"
-#include "SDCCutil.h"
-//#include "gen.h"
+
+/*
+ * Imports
+ */
+extern set *dataDirsSet;
+extern set *includeDirsSet;
+extern set *libDirsSet;
+extern set *libPathsSet;
+extern set *linkOptionsSet;
+
+
+pic14_options_t pic14_options;
+int debug_verbose = 0;
+#define OPTION_STACK_SIZE "--stack-size"
+
static char _defaultRules[] =
{
#include "peeph.rul"
};
-/* list of key words used by msc51 */
+static OPTION _pic14_poptions[] =
+ {
+ { 0, "--debug-xtra", &debug_verbose, "show more debug info in assembly output" },
+ { 0, "--no-pcode-opt", &pic14_options.disable_df, "disable (slightly faulty) optimization on pCode" },
+ { 0, OPTION_STACK_SIZE, &options.stack_size, "sets the size if the argument passing stack (default: 16, minimum: 4)", CLAT_INTEGER },
+ { 0, NULL, NULL, NULL }
+ };
+
+/* list of key words used by pic14 */
static char *_pic14_keywords[] =
{
"at",
- "bit",
+ //"bit",
"code",
"critical",
"data",
"pdata",
"reentrant",
"sfr",
- "sbit",
+ //"sbit",
"using",
"xdata",
"_data",
NULL
};
-void pCodeInitRegisters(void);
+static int regParmFlg = 0; /* determine if we can register a parameter */
+
-void pic14_assignRegisters (eBBlock ** ebbs, int count);
+/** $1 is always the basename.
+ $2 is always the output file.
+ $3 varies
+ $l is the list of extra options that should be there somewhere...
+ MUST be terminated with a NULL.
+*/
+static const char *_linkCmd[] =
+{
+ "gplink", "$l", "-w", "-r", "-o \"$2\"", "\"$1\"", "$3", NULL
+};
-static int regParmFlg = 0; /* determine if we can register a parameter */
+static const char *_asmCmd[] =
+{
+ "gpasm", "$l", "$3", "-c", "\"$1.asm\"", NULL
+};
static void
_pic14_init (void)
{
asm_addTree (&asm_asxxxx_mapping);
- pCodeInitRegisters();
+ memset (&pic14_options, 0, sizeof (pic14_options));
}
static void
-_pic14_reset_regparm ()
+_pic14_reset_regparm (void)
{
regParmFlg = 0;
}
static int
-_pic14_regparm (sym_link * l)
+_pic14_regparm (sym_link * l, bool reentrant)
{
- /* for this processor it is simple
- can pass only the first parameter in a register */
+/* 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);
- }
-
- return 0;
- }
- return 1;
-}
-
static bool
_pic14_parseOptions (int *pargc, char **argv, int *i)
{
- /* TODO: allow port-specific command line options to specify
- * segment names here.
- */
- return FALSE;
+ /* TODO: allow port-specific command line options to specify
+ * segment names here.
+ */
+ return FALSE;
}
+/* pic14 port uses include/pic and lib/pic instead of
+ * include/pic14 and lib/pic14 as indicated by SDCCmain.c's
+ * setIncludePaths routine. */
static void
-_pic14_finaliseOptions (void)
+_pic14_initPaths (void)
{
+ char *p;
+ char *p2=NULL;
+ set *tempSet=NULL;
- 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)
- {
+ if (options.nostdinc)
+ return;
- 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;
- }
+ tempSet = appendStrSet(dataDirsSet, NULL, INCLUDE_DIR_SUFFIX DIR_SEPARATOR_STRING "pic");
+ mergeSets(&includeDirsSet, tempSet);
- if (options.model == MODEL_LARGE)
- {
- port->mem.default_local_map = xdata;
- port->mem.default_globl_map = xdata;
- }
- else
+ if ((p = getenv(SDCC_INCLUDE_NAME)) != NULL)
+ {
+ addSetHead(&includeDirsSet, p);
+ p2=Safe_alloc(strlen(p)+strlen(DIR_SEPARATOR_STRING)+strlen("pic")+1);
+ if(p2!=NULL)
{
- port->mem.default_local_map = data;
- port->mem.default_globl_map = data;
+ strcpy(p2, p);
+ strcat(p2, DIR_SEPARATOR_STRING);
+ strcat(p2, "pic");
+ addSetHead(&includeDirsSet, p2);
}
+ }
+}
- 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;
- }
- }
-#endif
+static void
+_pic14_finaliseOptions (void)
+{
+ pCodeInitRegisters();
+
+ port->mem.default_local_map = data;
+ port->mem.default_globl_map = data;
}
static void
return "err";
}
-extern char *processor_base_name(void);
-
static void
_pic14_genAssemblerPreamble (FILE * of)
{
char * name = processor_base_name();
-
+
if(!name) {
-
- name = "p16f877";
+
+ name = "16f877";
fprintf(stderr,"WARNING: No Pic has been selected, defaulting to %s\n",name);
}
-
- fprintf (of, "\tlist\tp=%s\n",&name[1]);
- fprintf (of, "\t__CONFIG 0x%x\n",getConfigWord(0x2007));
- fprintf (of, "\tradix dec");
- fprintf (of, "\ninclude \"%s.inc\"\n",name);
+
+ fprintf (of, "\tlist\tp=%s\n",name);
+ fprintf (of, "\tradix dec\n");
+ fprintf (of, "\tinclude \"p%s.inc\"\n",name);
}
/* Generate interrupt vector table. */
static int
-_pic14_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts)
+_pic14_genIVT (struct dbuf_s * oBuf, 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])
- {
- 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;
+ /* Let the default code handle it. */
+ return FALSE;
}
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;
- }
+ {
+ return FALSE;
+ }
+
+ /* multiply chars in-place */
+ if (getSize(left) == 1 && getSize(right) == 1)
+ return TRUE;
+
+ /* use library functions for more complex maths */
+ 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));
- }
+/* 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
- {
- fprintf(stderr,"oops, neither is lit so no\n");
- return FALSE;
- }
+ 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.
-*/
-static const char *_linkCmd[] =
+static void _pic14_do_link (void)
{
- "aslink", "-nf", "$1", NULL
-};
+ hTab *linkValues=NULL;
+ char lfrm[256];
+ char *lcmd;
+ char temp[128];
+ set *tSet=NULL;
+ int ret;
+ char * procName;
+
+ /*
+ * link command format:
+ * {linker} {incdirs} {lflags} -o {outfile} {spec_ofiles} {ofiles} {libs}
+ *
+ */
-/* Sigh. This really is not good. For now, I recommend:
- * sdcc -S -mpic14 file.c
- * the -S option does not compile or link
- */
-static const char *_asmCmd[] =
-{
- "gpasm", "-c -I /usr/local/share/gpasm/header", "$1.asm", NULL
+ sprintf(lfrm, "{linker} {incdirs} {sysincdirs} {lflags} -w -r -o {outfile} {user_ofile} {spec_ofiles} {ofiles} {libs}");
-};
+ shash_add(&linkValues, "linker", "gplink");
+
+ /* LIBRARY SEARCH DIRS */
+ mergeSets(&tSet, libPathsSet);
+ mergeSets(&tSet, libDirsSet);
+ shash_add(&linkValues, "incdirs", joinStrSet(appendStrSet(tSet, "-I\"", "\"")));
+
+ SNPRINTF (&temp[0], 128, "%cpic\"", DIR_SEPARATOR_CHAR);
+ joinStrSet(appendStrSet(libDirsSet, "-I\"", &temp[0]));
+ shash_add(&linkValues, "sysincdirs", joinStrSet(appendStrSet(libDirsSet, "-I\"", &temp[0])));
+
+ shash_add(&linkValues, "lflags", joinStrSet(linkOptionsSet));
+
+ shash_add(&linkValues, "outfile", fullDstFileName ? fullDstFileName : dstFileName);
+
+ if(fullSrcFileName) {
+ sprintf(temp, "%s.o", fullDstFileName ? fullDstFileName : dstFileName );
+ shash_add(&linkValues, "user_ofile", temp);
+ }
+
+ shash_add(&linkValues, "ofiles", joinStrSet(relFilesSet));
+
+ /* LIBRARIES */
+ procName = processor_base_name();
+ if (!procName) {
+ procName = "16f877";
+ }
+
+ addSet(&libFilesSet, "libsdcc.lib");
+ SNPRINTF(&temp[0], 128, "pic%s.lib", procName);
+ addSet(&libFilesSet, temp);
+ shash_add(&linkValues, "libs", joinStrSet(libFilesSet));
+
+ lcmd = msprintf(linkValues, lfrm);
+
+ ret = my_system( lcmd );
+
+ Safe_free( lcmd );
+
+ if(ret)
+ exit(1);
+}
/* Globals */
PORT pic_port =
{
TARGET_ID_PIC,
"pic14",
- "MCU pic", /* Target name */
- "p16f877", /* Processor */
+ "MCU pic", /* Target name */
+ "", /* Processor */
{
- TRUE, /* Emit glue around main */
+ 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 */
+ "-g", /* options with --debug */
+ NULL, /* options without --debug */
+ //"-plosgffc", /* Options with debug */
+ //"-plosgff", /* Options without debug */
0,
".asm",
- NULL /* no do_assemble function */
+ NULL /* no do_assemble function */
},
{
_linkCmd,
NULL,
- NULL,
- ".rel"
+ _pic14_do_link, /* own do link function */
+ ".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)
- */
+ /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */
+ 1, 2, 2, 4, 2, 2, 3, 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)
+ */
},
+ /* tags for generic pointers */
+ { 0x00, 0x00, 0x00, 0x80 }, /* far, near, xstack, code */
{
"XSEG (XDATA)",
"STACK (DATA)",
- "CSEG (CODE)",
+ "code",
"DSEG (DATA)",
"ISEG (DATA)",
+ NULL, /* pdata */
"XSEG (XDATA)",
"BSEG (BIT)",
"RSEG (DATA)",
"GSINIT (CODE)",
- "OSEG (OVR,DATA)",
+ "udata_ovr",
"GSFINAL (CODE)",
"HOME (CODE)",
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,
NULL,
1 // code is read only
},
+ { NULL, NULL },
{
+1, 1, 4, 1, 1, 0
},
{
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,
+ _pic14_poptions,
+ _pic14_initPaths,
_pic14_finaliseOptions,
_pic14_setDefaultOptions,
pic14_assignRegisters,
_pic14_getRegName,
_pic14_keywords,
_pic14_genAssemblerPreamble,
- NULL, /* no genAssemblerEnd */
+ NULL, /* no genAssemblerEnd */
_pic14_genIVT,
NULL, // _pic14_genXINIT
+ NULL, /* genInitStartup */
_pic14_reset_regparm,
_pic14_regparm,
- _process_pragma, /* process a pragma */
+ NULL, /* process a pragma */
NULL,
_hasNativeMulFor,
+ hasExtBitOp, /* hasExtBitOp */
+ oclsExpense, /* oclsExpense */
FALSE,
- 0, /* leave lt */
- 0, /* leave gt */
- 1, /* transform <= to ! > */
- 1, /* transform >= to ! < */
- 1, /* transform != to !(a == b) */
- 0, /* leave == */
- FALSE, /* No array initializer support. */
- 0, /* no CSE cost estimation yet */
- NULL, /* no builtin functions */
- GPOINTER, /* treat unqualified pointers as "generic" pointers */
- 1, /* reset labelKey to 1 */
- 1, /* globals & local static allowed */
+// TRUE, /* little endian */
+ 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