"_xdata",
"_pdata",
"_idata",
+ "_naked",
NULL
};
-
+static builtins __ds390_builtins[] = {
+ { "__builtin_memcpy_x2x","v",3,{"cx*","cx*","i"}}, /* void __builtin_memcpy_x2x (xdata char *,xdata char *,int) */
+ { "__builtin_memcpy_c2x","v",3,{"cx*","cp*","i"}}, /* void __builtin_memcpy_c2x (xdata char *,code char *,int) */
+ { "__builtin_memset_x","v",3,{"cx*","c","i"}}, /* void __builtin_memset (xdata char *,char,int) */
+ { NULL , NULL,0, {NULL}} /* mark end of table */
+};
void ds390_assignRegisters (eBBlock ** ebbs, int count);
static int regParmFlg = 0; /* determine if we can register a parameter */
/* Hack-o-matic: if we are using the flat24 model,
* adjust pointer sizes.
*/
- if (options.model != MODEL_FLAT24)
- {
+ if (options.model != MODEL_FLAT24) {
fprintf (stderr,
- "*** warning: ds390 port only supports the flat24 model.\n");
- 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
+ "*** warning: ds390 port small and large model experimental.\n");
+ 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;
+ }
+ }
+ else {
+ port->s.fptr_size = 3;
+ port->s.gptr_size = 4;
+
+ port->stack.isr_overhead += 2; /* Will save dpx on ISR entry. */
+
+ port->stack.call_overhead += 2; /* This acounts for the extra byte
* of return addres on the stack.
* but is ugly. There must be a
* better way.
*/
-#endif
- 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;
- }
+ port->mem.default_local_map = xdata;
+ port->mem.default_globl_map = xdata;
- if (options.stack10bit)
+ 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;
- }
+ fprintf (stderr,
+ "*** error: ds390 port only supports the 10 bit stack mode.\n");
+ } else {
+ if (!options.stack_loc) options.stack_loc = 0x400007;
}
+
+ /* generate native code 16*16 mul/div */
+ if (options.useAccelerator)
+ port->support.muldiv=2;
+ else
+ port->support.muldiv=1;
+
+ /* 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;
+ } /* MODEL_FLAT24 */
}
static void
_ds390_setDefaultOptions (void)
{
+ options.model=MODEL_FLAT24;
+ options.stack10bit=1;
}
static const char *
static void
_ds390_genAssemblerPreamble (FILE * of)
{
- if (options.model == MODEL_FLAT24)
- {
- fputs (".flat24 on\t\t; 24 bit flat addressing\n", 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);
fputs ("ap = 0x9C\t\t; ap register unknown to assembler\n", of);
- }
+ fputs ("mcnt0 = 0xD1\t\t; mcnt0 register unknown to assembler\n", of);
+ fputs ("mcnt1 = 0xD2\t\t; mcnt1 register unknown to assembler\n", of);
+ fputs ("ma = 0xD3\t\t; ma register unknown to assembler\n", of);
+ fputs ("mb = 0xD4\t\t; mb register unknown to assembler\n", of);
+ fputs ("mc = 0xD5\t\t; mc register unknown to assembler\n", of);
+ fputs ("F1 = 0xD1\t\t; F1 user flag unknown to assembler\n", of);
+ fputs ("esp = 0x9B\t\t; ESP user flag unknown to assembler\n", of);
}
/* Generate interrupt vector table. */
return TRUE;
}
+/* Generate code to copy XINIT to XISEG */
+static void _ds390_genXINIT (FILE * of) {
+ fprintf (of, "; _ds390_genXINIT() start\n");
+ fprintf (of, " mov a,#l_XINIT\n");
+ fprintf (of, " orl a,#l_XINIT>>8\n");
+ fprintf (of, " jz 00003$\n");
+ fprintf (of, " mov a,#s_XINIT\n");
+ fprintf (of, " add a,#l_XINIT\n");
+ fprintf (of, " mov r1,a\n");
+ fprintf (of, " mov a,#s_XINIT>>8\n");
+ fprintf (of, " addc a,#l_XINIT>>8\n");
+ fprintf (of, " mov r2,a\n");
+ fprintf (of, " mov dptr,#s_XINIT\n");
+ fprintf (of, " mov dps,#0x21\n");
+ fprintf (of, " mov dptr,#s_XISEG\n");
+ fprintf (of, "00001$: clr a\n");
+ fprintf (of, " movc a,@a+dptr\n");
+ fprintf (of, " movx @dptr,a\n");
+ fprintf (of, " inc dptr\n");
+ fprintf (of, " inc dptr\n");
+ fprintf (of, "00002$: mov a,dpl\n");
+ fprintf (of, " cjne a,ar1,00001$\n");
+ fprintf (of, " mov a,dph\n");
+ fprintf (of, " cjne a,ar2,00001$\n");
+ fprintf (of, " mov dps,#0\n");
+ fprintf (of, "00003$:\n");
+ fprintf (of, "; _ds390_genXINIT() end\n");
+}
+
+/* Do CSE estimation */
+static bool cseCostEstimation (iCode *ic, iCode *pdic)
+{
+ operand *result = IC_RESULT(ic);
+ //operand *right = IC_RIGHT(ic);
+ //operand *left = IC_LEFT(ic);
+ sym_link *result_type = operandType(result);
+ //sym_link *right_type = (right ? operandType(right) : 0);
+ //sym_link *left_type = (left ? operandType(left) : 0);
+
+ /* if it is a pointer then return ok for now */
+ if (IC_RESULT(ic) && IS_PTR(result_type)) return 1;
+
+ /* if bitwise | add & subtract then no since mcs51 is pretty good at it
+ so we will cse only if they are local (i.e. both ic & pdic belong to
+ the same basic block */
+ if (IS_BITWISE_OP(ic) || ic->op == '+' || ic->op == '-') {
+ /* then if they are the same Basic block then ok */
+ if (ic->eBBlockNum == pdic->eBBlockNum) return 1;
+ else return 0;
+ }
+
+ /* for others it is cheaper to do the cse */
+ return 1;
+}
/** $1 is always the basename.
$2 is always the output file.
$3 varies
"aslink", "-nf", "$1", NULL
};
-static const char *_asmCmd[] =
+/* $3 is replaced by assembler.debug_opts resp. port->assembler.plain_opts */ static const char *_asmCmd[] =
{
- "asx8051", "-plosgff", "$1.asm", NULL
+ "asx8051", "$l", "$3", "$1.asm", NULL
};
/* Globals */
PORT ds390_port =
{
+ TARGET_ID_DS390,
"ds390",
"DS80C390", /* Target name */
{
},
{
_asmCmd,
+ NULL,
"-plosgffc", /* Options with debug */
"-plosgff", /* Options without debug */
- 0
+ 0,
+ ".asm"
},
{
_linkCmd,
NULL,
+ NULL,
".rel"
},
{
},
{
/* 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)",
"GSINIT (CODE)",
"OSEG (OVR,DATA)",
"GSFINAL (CODE)",
- "HOME (CODE)",
+ "HOME (CODE)",
+ "XISEG (XDATA)", // initialized xdata
+ "XINIT (CODE)", // a code copy of xiseg
NULL,
NULL,
1
{
+1, 1, 4, 1, 1, 0
},
- /* ds390 has an 8 bit mul */
+ /* ds390 has an 16 bit mul & div */
{
- 1, 0
+ 2, -1
},
"_",
_ds390_init,
_ds390_keywords,
_ds390_genAssemblerPreamble,
_ds390_genIVT,
+ _ds390_genXINIT,
_ds390_reset_regparm,
_ds390_regparm,
NULL,
+ NULL,
+ NULL,
FALSE,
0, /* leave lt */
0, /* leave gt */
1, /* transform >= to ! < */
1, /* transform != to !(a == b) */
0, /* leave == */
+ TRUE, /* we support array initializers. */
+ cseCostEstimation,
+ __ds390_builtins, /* table of builtin functions */
PORT_MAGIC
};
projects / fw / sdcc / blobdiff