};
/* list of key words used by msc51 */
-static char *_mcs51_keywords[] = {
- "at",
- "bit",
- "code",
- "critical",
- "data",
- "far",
- "idata",
- "interrupt",
- "near",
- "pdata",
- "reentrant",
- "sfr",
- "sbit",
- "using",
- "xdata",
- "_data",
- "_code",
- "_generic",
- "_near",
- "_xdata",
- "_pdata",
- "_idata",
- NULL
+static char *_mcs51_keywords[] =
+{
+ "at",
+ "bit",
+ "code",
+ "critical",
+ "data",
+ "far",
+ "idata",
+ "interrupt",
+ "near",
+ "pdata",
+ "reentrant",
+ "sfr",
+ "sbit",
+ "using",
+ "xdata",
+ "_data",
+ "_code",
+ "_generic",
+ "_near",
+ "_xdata",
+ "_pdata",
+ "_idata",
+ "_naked",
+ NULL
};
-void mcs51_assignRegisters (eBBlock **ebbs, int count);
+void mcs51_assignRegisters (eBBlock ** ebbs, int count);
-static int regParmFlg = 0; /* determine if we can register a parameter */
+static int regParmFlg = 0; /* determine if we can register a parameter */
-static void _mcs51_init(void)
+static void
+_mcs51_init (void)
{
- asm_addTree(&asm_asxxxx_mapping);
+ asm_addTree (&asm_asxxxx_mapping);
}
-static void _mcs51_reset_regparm()
+static void
+_mcs51_reset_regparm ()
{
- regParmFlg = 0;
+ regParmFlg = 0;
}
-static int _mcs51_regparm( link *l)
+static int
+_mcs51_regparm (sym_link * l)
{
- /* for this processor it is simple
- can pass only the first parameter in a register */
- if (regParmFlg)
- return 0;
+ /* for this processor it is simple
+ can pass only the first parameter in a register */
+ if (regParmFlg)
+ return 0;
- regParmFlg = 1;
- return 1;
+ regParmFlg = 1;
+ return 1;
}
-static bool _mcs51_parseOptions(int *pargc, char **argv, int *i)
+static bool
+_mcs51_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;
}
-static void _mcs51_finaliseOptions(void)
+static void
+_mcs51_finaliseOptions (void)
{
- /* Hack-o-matic: if we are using the flat24 model,
- * adjust pointer sizes.
- */
- if (options.model == MODEL_FLAT24)
- {
- 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) {
- 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.model == MODEL_LARGE) {
+ port->mem.default_local_map = xdata;
+ port->mem.default_globl_map = xdata;
}
-
- if (options.stack10bit)
+ else
{
- 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;
- }
+ port->mem.default_local_map = data;
+ port->mem.default_globl_map = data;
}
}
-static void _mcs51_setDefaultOptions(void)
+static void
+_mcs51_setDefaultOptions (void)
{
}
-static const char *_mcs51_getRegName(struct regs *reg)
+static const char *
+_mcs51_getRegName (struct regs *reg)
{
- if (reg)
- return reg->name;
- return "err";
+ if (reg)
+ return reg->name;
+ return "err";
}
-static void _mcs51_genAssemblerPreamble(FILE *of)
+static void
+_mcs51_genAssemblerPreamble (FILE * of)
{
- if (options.model == MODEL_FLAT24)
- {
- fputs(".flat24 on\t\t; 24 bit flat addressing\n", of);
- fputs("dpx = 0x93\t\t; dpx register unknown to assembler\n", of);
- fputs("dps = 0x86\t\t; dps register unknown to assembler\n", of);
- fputs("dpl1 = 0x84\t\t; dpl1 register unknown to assembler\n", of);
- fputs("dph1 = 0x85\t\t; dph1 register unknown to assembler\n", of);
- fputs("dpx1 = 0x95\t\t; dpx1 register unknown to assembler\n", of);
- }
}
/* Generate interrupt vector table. */
-static int _mcs51_genIVT(FILE *of, symbol **interrupts, int maxInterrupts)
+static int
+_mcs51_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts)
{
- int i;
-
- if (options.model != MODEL_FLAT24)
- {
- /* Let the default code handle it. */
- return FALSE;
- }
-
- fprintf (of, "\tajmp\t__sdcc_gsinit_startup\n");
-
- /* now for the other interrupts */
- for (i = 0; i < maxInterrupts; i++)
- {
- if (interrupts[i])
- {
- fprintf(of, "\tljmp\t%s\n\t.ds\t4\n", interrupts[i]->rname);
- }
- else
- {
- fprintf(of, "\treti\n\t.ds\t7\n");
- }
- }
-
- return TRUE;
+ return FALSE;
}
/** $1 is always the basename.
$l is the list of extra options that should be there somewhere...
MUST be terminated with a NULL.
*/
-static const char *_linkCmd[] = {
- "aslink", "-nf", "$1", NULL
+static const char *_linkCmd[] =
+{
+ "aslink", "-nf", "$1", NULL
};
-static const char *_asmCmd[] = {
- "asx8051", "-plosgffc", "$1.asm", NULL
+static const char *_asmCmd[] =
+{
+ "asx8051", "$l", "-plosgffc", "$1.asm", NULL
};
/* Globals */
-PORT mcs51_port = {
- "mcs51",
- "MCU 8051", /* Target name */
- {
- TRUE, /* Emit glue around main */
- },
- {
- _asmCmd,
- "-plosgffc", /* Options with debug */
- "-plosgff", /* Options without debug */
- },
- {
- _linkCmd
- },
- {
- _defaultRules
- },
- {
- /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */
- 1, 1, 2, 4, 1, 2, 3, 1, 4, 4
- },
- {
- "XSEG (XDATA)",
- "STACK (DATA)",
- "CSEG (CODE)",
- "DSEG (DATA)",
- "ISEG (DATA)",
- "XSEG (XDATA)",
- "BSEG (BIT)",
- "RSEG (DATA)",
- "GSINIT (CODE)",
- "OSEG (OVR,DATA)",
- "GSFINAL (CODE)",
- NULL,
- NULL,
- 1
- },
- {
- +1, 1, 4, 1, 1
- },
- /* mcs51 has an 8 bit mul */
- {
- 1
- },
- "_",
- _mcs51_init,
- _mcs51_parseOptions,
- _mcs51_finaliseOptions,
- _mcs51_setDefaultOptions,
- mcs51_assignRegisters,
- _mcs51_getRegName ,
- _mcs51_keywords,
- _mcs51_genAssemblerPreamble,
- _mcs51_genIVT ,
- _mcs51_reset_regparm,
- _mcs51_regparm,
+PORT mcs51_port =
+{
+ TARGET_ID_MCS51,
+ "mcs51",
+ "MCU 8051", /* Target name */
+ {
+ TRUE, /* Emit glue around main */
+ MODEL_SMALL | MODEL_LARGE,
+ MODEL_SMALL
+ },
+ {
+ _asmCmd,
+ "-plosgffc", /* Options with debug */
+ "-plosgff", /* Options without debug */
+ 0,
+ ".asm"
+ },
+ {
+ _linkCmd,
+ NULL,
+ ".rel"
+ },
+ {
+ _defaultRules
+ },
+ {
+ /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */
+ 1, 2, 2, 4, 1, 2, 3, 1, 4, 4
+ },
+ {
+ "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,
NULL,
- FALSE
+ 1
+ },
+ {
+ +1, 1, 4, 1, 1, 0
+ },
+ /* mcs51 has an 8 bit mul */
+ {
+ 1, -1
+ },
+ "_",
+ _mcs51_init,
+ _mcs51_parseOptions,
+ _mcs51_finaliseOptions,
+ _mcs51_setDefaultOptions,
+ mcs51_assignRegisters,
+ _mcs51_getRegName,
+ _mcs51_keywords,
+ _mcs51_genAssemblerPreamble,
+ _mcs51_genIVT,
+ _mcs51_reset_regparm,
+ _mcs51_regparm,
+ NULL,
+ NULL,
+ 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. */
+ PORT_MAGIC
};
-
projects / fw / sdcc / blobdiff