"_xdata",
"_pdata",
"_idata",
+ "_naked",
NULL
};
static void
_mcs51_finaliseOptions (void)
{
- /* 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- "badly out of date and probably broken.\n");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)
- {
+ if (options.model == MODEL_LARGE) {
port->mem.default_local_map = xdata;
port->mem.default_globl_map = xdata;
}
port->mem.default_local_map = data;
port->mem.default_globl_map = data;
}
-
- 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;
- }
- }
}
static void
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)
{
- 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.
static const char *_asmCmd[] =
{
- "asx8051", "-plosgffc", "$1.asm", NULL
+ "asx8051", "$l", "-plosgffc", "$1.asm", NULL
};
/* Globals */
PORT mcs51_port =
{
+ TARGET_ID_MCS51,
"mcs51",
"MCU 8051", /* Target name */
{
TRUE, /* Emit glue around main */
- MODEL_SMALL | MODEL_LARGE | MODEL_FLAT24,
+ MODEL_SMALL | MODEL_LARGE,
MODEL_SMALL
},
{
_asmCmd,
"-plosgffc", /* Options with debug */
"-plosgff", /* Options without debug */
- 0
+ 0,
+ ".asm"
},
{
_linkCmd,
},
{
/* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */
- 1, 1, 2, 4, 1, 2, 3, 1, 4, 4
+ 1, 2, 2, 4, 1, 2, 3, 1, 4, 4
},
{
"XSEG (XDATA)",
},
/* mcs51 has an 8 bit mul */
{
- 1, 0
+ 1, -1
},
"_",
_mcs51_init,
_mcs51_reset_regparm,
_mcs51_regparm,
NULL,
+ NULL,
FALSE,
0, /* leave lt */
0, /* leave gt */