X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fds390%2Fmain.c;h=8b82663f35f62346fab4869f82932e867aa0d1b4;hb=99ed716f69594954295d848e2a388a6fce7ddb1d;hp=2f2822eecbf82f49b5a7b24c371b74835e7e48ae;hpb=8381b2492715379f13d71356a509c3bf4dbb3086;p=fw%2Fsdcc diff --git a/src/ds390/main.c b/src/ds390/main.c index 2f2822ee..8b82663f 100644 --- a/src/ds390/main.c +++ b/src/ds390/main.c @@ -10,13 +10,33 @@ #include "gen.h" #include "BuildCmd.h" #include "MySystem.h" +#include "dbuf_string.h" #include "../SDCCutil.h" -extern const char *preArgv[128]; /* pre-processor arguments */ +#include "../SDCCglobl.h" static char _defaultRules[] = { #include "peeph.rul" }; +#define OPTION_STACK_8BIT "--stack-8bit" +#define OPTION_FLAT24_MODEL "--model-flat24" +#define OPTION_STACK_SIZE "--stack-size" + +static OPTION _ds390_options[] = + { + { 0, OPTION_FLAT24_MODEL, NULL, "use the flat24 model for the ds390 (default)" }, + { 0, OPTION_STACK_8BIT, NULL, "use the 8bit stack for the ds390 (not supported yet)" }, + { 0, OPTION_STACK_SIZE, &options.stack_size, "Tells the linker to allocate this space for stack", CLAT_INTEGER }, + { 0, "--pack-iram", NULL, "Tells the linker to pack variables in internal ram (default)"}, + { 0, "--no-pack-iram", &options.no_pack_iram, "Tells the linker not to pack variables in internal ram"}, + { 0, "--stack-10bit", &options.stack10bit, "use the 10bit stack for ds390 (default)" }, + { 0, "--use-accelerator", &options.useAccelerator, "generate code for ds390 arithmetic accelerator"}, + { 0, "--protect-sp-update", &options.protect_sp_update, "will disable interrupts during ESP:SP updates"}, + { 0, "--parms-in-bank1", &options.parms_in_bank1, "use Bank1 for parameter passing"}, + { 0, NULL } + }; + + /* list of key words used by msc51 */ static char *_ds390_keywords[] = { @@ -32,6 +52,8 @@ static char *_ds390_keywords[] = "pdata", "reentrant", "sfr", + "sfr16", + "sfr32", "sbit", "using", "xdata", @@ -49,19 +71,19 @@ static char *_ds390_keywords[] = 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) */ + { "__builtin_memset_x","v",3,{"cx*","c","i"}}, /* void __builtin_memset (xdata char *,char,int) */ /* __builtin_inp - used to read from a memory mapped port, increment first pointer */ { "__builtin_inp","v",3,{"cx*","cx*","i"}}, /* void __builtin_inp (xdata char *,xdata char *,int) */ /* __builtin_inp - used to write to a memory mapped port, increment first pointer */ { "__builtin_outp","v",3,{"cx*","cx*","i"}}, /* void __builtin_outp (xdata char *,xdata char *,int) */ - { "__builtin_swapw","us",1,{"us"}}, /* unsigned short __builtin_swapw (unsigned short) */ + { "__builtin_swapw","us",1,{"us"}}, /* unsigned short __builtin_swapw (unsigned short) */ { "__builtin_memcmp_x2x","c",3,{"cx*","cx*","i"}}, /* void __builtin_memcmp_x2x (xdata char *,xdata char *,int) */ { "__builtin_memcmp_c2x","c",3,{"cx*","cp*","i"}}, /* void __builtin_memcmp_c2x (xdata char *,code char *,int) */ - { NULL , NULL,0, {NULL}} /* mark end of table */ -}; -void ds390_assignRegisters (eBBlock ** ebbs, int count); + { NULL , NULL,0, {NULL}} /* mark end of table */ +}; +void ds390_assignRegisters (ebbIndex * ebbi); -static int regParmFlg = 0; /* determine if we can register a parameter */ +static int regParmFlg = 0; /* determine if we can register a parameter */ static void _ds390_init (void) @@ -70,39 +92,40 @@ _ds390_init (void) } static void -_ds390_reset_regparm () +_ds390_reset_regparm (void) { regParmFlg = 0; } static int -_ds390_regparm (sym_link * l) +_ds390_regparm (sym_link * l, bool reentrant) { - + if (IS_SPEC(l) && (SPEC_NOUN(l) == V_BIT)) + return 0; if (options.parms_in_bank1 == 0) { - /* simple can pass only the first parameter in a register */ - if (regParmFlg) - return 0; + /* simple can pass only the first parameter in a register */ + if (regParmFlg) + return 0; - regParmFlg = 1; - return 1; + regParmFlg = 1; + return 1; } else { - int size = getSize(l); - int remain ; - - /* first one goes the usual way to DPTR */ - if (regParmFlg == 0) { - regParmFlg += 4 ; - return 1; - } - /* second one onwards goes to RB1_0 thru RB1_7 */ + int size = getSize(l); + int remain ; + + /* first one goes the usual way to DPTR */ + if (regParmFlg == 0) { + regParmFlg += 4 ; + return 1; + } + /* second one onwards goes to RB1_0 thru RB1_7 */ remain = regParmFlg - 4; - if (size > (8 - remain)) { - regParmFlg = 12 ; - return 0; - } - regParmFlg += size ; - return regParmFlg - size + 1; + if (size > (8 - remain)) { + regParmFlg = 12 ; + return 0; + } + regParmFlg += size ; + return regParmFlg - size + 1; } } @@ -112,6 +135,16 @@ _ds390_parseOptions (int *pargc, char **argv, int *i) /* TODO: allow port-specific command line options to specify * segment names here. */ + if (!strcmp (argv[*i], OPTION_STACK_8BIT)) + { + options.stack10bit = 0; + return TRUE; + } + else if (!strcmp (argv[*i], OPTION_FLAT24_MODEL)) + { + options.model = MODEL_FLAT24; + return TRUE; + } return FALSE; } @@ -127,7 +160,7 @@ _ds390_finaliseOptions (void) */ if (options.model != MODEL_FLAT24) { fprintf (stderr, - "*** warning: ds390 port small and large model experimental.\n"); + "*** warning: ds390 port small and large model experimental.\n"); if (options.model == MODEL_LARGE) { port->mem.default_local_map = xdata; @@ -143,13 +176,13 @@ _ds390_finaliseOptions (void) port->s.fptr_size = 3; port->s.gptr_size = 4; - port->stack.isr_overhead += 2; /* Will save dpx on ISR entry. */ + 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. - */ + 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. + */ port->mem.default_local_map = xdata; port->mem.default_globl_map = xdata; @@ -157,16 +190,16 @@ _ds390_finaliseOptions (void) if (!options.stack10bit) { fprintf (stderr, - "*** error: ds390 port only supports the 10 bit stack mode.\n"); + "*** error: ds390 port only supports the 10 bit stack mode.\n"); } else { - if (!options.stack_loc) options.stack_loc = 0x400008; + if (!options.stack_loc) options.stack_loc = 0x400008; } - + /* generate native code 16*16 mul/div */ - if (options.useAccelerator) - port->support.muldiv=2; - else - port->support.muldiv=1; + 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. @@ -175,7 +208,7 @@ _ds390_finaliseOptions (void) istack->ptrType = FPOINTER; if (options.parms_in_bank1) { - addToList (preArgv, "-DSDCC_PARMS_IN_BANK1"); + addSet(&preArgvSet, Safe_strdup("-DSDCC_PARMS_IN_BANK1")); } } /* MODEL_FLAT24 */ } @@ -195,65 +228,126 @@ _ds390_getRegName (struct regs *reg) return "err"; } +extern char * iComments2; + static void _ds390_genAssemblerPreamble (FILE * of) { + fputs (iComments2, of); + fputs ("; CPU specific extensions\n",of); + fputs (iComments2, 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 ("_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); + fputs ("dpl1\t=\t0x84\n", of); + fputs ("dph1\t=\t0x85\n", of); + fputs ("dps\t=\t0x86\n", of); + fputs ("dpx\t=\t0x93\n", of); + fputs ("dpx1\t=\t0x95\n", of); + fputs ("esp\t=\t0x9B\n", of); + fputs ("ap\t=\t0x9C\n", of); + fputs ("_ap\t=\t0x9C\n", of); + fputs ("mcnt0\t=\t0xD1\n", of); + fputs ("mcnt1\t=\t0xD2\n", of); + fputs ("ma\t=\t0xD3\n", of); + fputs ("mb\t=\t0xD4\n", of); + fputs ("mc\t=\t0xD5\n", of); + fputs ("F1\t=\t0xD1\t; user flag\n", of); if (options.parms_in_bank1) { - int i ; - for (i=0; i < 8 ; i++ ) - fprintf (of,"b1_%d = 0x%x \n",i,8+i); + int i ; + for (i=0; i < 8 ; i++ ) + fprintf (of,"b1_%d\t=\t0x%02X\n",i,8+i); } } /* Generate interrupt vector table. */ static int -_ds390_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts) +_ds390_genIVT (struct dbuf_s * oBuf, symbol ** interrupts, int maxInterrupts) { int i; if (options.model != MODEL_FLAT24) { - /* Let the default code handle it. */ - return FALSE; + dbuf_printf (oBuf, "\tljmp\t__sdcc_gsinit_startup\n"); + + /* now for the other interrupts */ + for (i = 0; i < maxInterrupts; i++) + { + if (interrupts[i]) + { + dbuf_printf (oBuf, "\tljmp\t%s\n", interrupts[i]->rname); + if ( i != maxInterrupts - 1 ) + dbuf_printf (oBuf, "\t.ds\t5\n"); + } + else + { + dbuf_printf (oBuf, "\treti\n"); + if ( i != maxInterrupts - 1 ) + dbuf_printf (oBuf, "\t.ds\t7\n"); + } + } + return TRUE; } - fprintf (of, "\tajmp\t__reset_vect\n"); + dbuf_printf (oBuf, "\tajmp\t__reset_vect\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); - } + { + dbuf_printf (oBuf, "\tljmp\t%s\n\t.ds\t4\n", interrupts[i]->rname); + } else - { - fprintf (of, "\treti\n\t.ds\t7\n"); - } + { + dbuf_printf (oBuf, "\treti\n\t.ds\t7\n"); + } } - fprintf (of, "__reset_vect:\n\tljmp\t__sdcc_gsinit_startup\n"); + dbuf_printf (oBuf, "__reset_vect:\n\tljmp\t__sdcc_gsinit_startup\n"); return TRUE; } +static void +_ds390_genInitStartup (FILE *of) +{ + fprintf (of, "__sdcc_gsinit_startup:\n"); + /* if external stack is specified then the + higher order byte of the xdatalocation is + going into P2 and the lower order going into + spx */ + if (options.useXstack) + { + fprintf (of, "\tmov\tP2,#0x%02x\n", + (((unsigned int) options.xdata_loc) >> 8) & 0xff); + fprintf (of, "\tmov\t_spx,#0x%02x\n", + (unsigned int) options.xdata_loc & 0xff); + } + + // This should probably be a port option, but I'm being lazy. + // on the 400, the firmware boot loader gives us a valid stack + // (see '400 data sheet pg. 85 (TINI400 ROM Initialization code) + if (!TARGET_IS_DS400) + { + /* initialise the stack pointer. JCF: aslink takes care of the location */ + fprintf (of, "\tmov\tsp,#__start__stack - 1\n"); /* MOF */ + } + + fprintf (of, "\tlcall\t__sdcc_external_startup\n"); + fprintf (of, "\tmov\ta,dpl\n"); + fprintf (of, "\tjz\t__sdcc_init_data\n"); + fprintf (of, "\tljmp\t__sdcc_program_startup\n"); + fprintf (of, "__sdcc_init_data:\n"); + + // if the port can copy the XINIT segment to XISEG + if (port->genXINIT) + { + port->genXINIT(of); + } +} + /* Generate code to copy XINIT to XISEG */ static void _ds390_genXINIT (FILE * of) { fprintf (of, "; _ds390_genXINIT() start\n"); @@ -292,22 +386,493 @@ static bool cseCostEstimation (iCode *ic, iCode *pdic) 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 + + /* 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; + /* 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; } + +bool _ds390_nativeMulCheck(iCode *ic, sym_link *left, sym_link *right) +{ + return FALSE; // #STUB +} + +/* Indicate which extended bit operations this port supports */ +static bool +hasExtBitOp (int op, int size) +{ + if (op == RRC + || op == RLC + || op == GETHBIT + || (op == SWAP && size <= 2) + ) + return TRUE; + else + return FALSE; +} + +/* Indicate the expense of an access to an output storage class */ +static int +oclsExpense (struct memmap *oclass) +{ + if (IN_FARSPACE(oclass)) + return 1; + + return 0; +} + +static int +instructionSize(char *inst, char *op1, char *op2) +{ + int isflat24 = (options.model == MODEL_FLAT24); + + #define ISINST(s) (strncmp(inst, (s), sizeof(s)-1) == 0) + #define IS_A(s) (*(s) == 'a' && *(s+1) == '\0') + #define IS_C(s) (*(s) == 'c' && *(s+1) == '\0') + #define IS_Rn(s) (*(s) == 'r' && *(s+1) >= '0' && *(s+1) <= '7') + #define IS_atRi(s) (*(s) == '@' && *(s+1) == 'r') + + /* Based on the current (2003-08-22) code generation for the + small library, the top instruction probability is: + + 57% mov/movx/movc + 6% push + 6% pop + 4% inc + 4% lcall + 4% add + 3% clr + 2% subb + */ + /* mov, push, & pop are the 69% of the cases. Check them first! */ + if (ISINST ("mov")) + { + if (*(inst+3)=='x') return 1; /* movx */ + if (*(inst+3)=='c') return 1; /* movc */ + if (IS_C (op1) || IS_C (op2)) return 2; + if (IS_A (op1)) + { + if (IS_Rn (op2) || IS_atRi (op2)) return 1; + return 2; + } + if (IS_Rn(op1) || IS_atRi(op1)) + { + if (IS_A(op2)) return 1; + return 2; + } + if (strcmp (op1, "dptr") == 0) return 3+isflat24; + if (IS_A (op2) || IS_Rn (op2) || IS_atRi (op2)) return 2; + return 3; + } + + if (ISINST ("push")) return 2; + if (ISINST ("pop")) return 2; + + if (ISINST ("lcall")) return 3+isflat24; + if (ISINST ("ret")) return 1; + if (ISINST ("ljmp")) return 3+isflat24; + if (ISINST ("sjmp")) return 2; + if (ISINST ("rlc")) return 1; + if (ISINST ("rrc")) return 1; + if (ISINST ("rl")) return 1; + if (ISINST ("rr")) return 1; + if (ISINST ("swap")) return 1; + if (ISINST ("jc")) return 2; + if (ISINST ("jnc")) return 2; + if (ISINST ("jb")) return 3; + if (ISINST ("jnb")) return 3; + if (ISINST ("jbc")) return 3; + if (ISINST ("jmp")) return 1; // always jmp @a+dptr + if (ISINST ("jz")) return 2; + if (ISINST ("jnz")) return 2; + if (ISINST ("cjne")) return 3; + if (ISINST ("mul")) return 1; + if (ISINST ("div")) return 1; + if (ISINST ("da")) return 1; + if (ISINST ("xchd")) return 1; + if (ISINST ("reti")) return 1; + if (ISINST ("nop")) return 1; + if (ISINST ("acall")) return 2+isflat24; + if (ISINST ("ajmp")) return 2+isflat24; + + + if (ISINST ("add") || ISINST ("addc") || ISINST ("subb") || ISINST ("xch")) + { + if (IS_Rn(op2) || IS_atRi(op2)) return 1; + return 2; + } + if (ISINST ("inc") || ISINST ("dec")) + { + if (IS_A(op1) || IS_Rn(op1) || IS_atRi(op1)) return 1; + if (strcmp(op1, "dptr") == 0) return 1; + return 2; + } + if (ISINST ("anl") || ISINST ("orl") || ISINST ("xrl")) + { + if (IS_C(op1)) return 2; + if (IS_A(op1)) + { + if (IS_Rn(op2) || IS_atRi(op2)) return 1; + return 2; + } + else + { + if (IS_A(op2)) return 2; + return 3; + } + } + if (ISINST ("clr") || ISINST ("setb") || ISINST ("cpl")) + { + if (IS_A(op1) || IS_C(op1)) return 1; + return 2; + } + if (ISINST ("djnz")) + { + if (IS_Rn(op1)) return 2; + return 3; + } + + /* If the instruction is unrecognized, we shouldn't try to optimize. */ + /* Return a large value to discourage optimization. */ + return 999; +} + +asmLineNode * +ds390newAsmLineNode (int currentDPS) +{ + asmLineNode *aln; + + aln = Safe_alloc ( sizeof (asmLineNode)); + aln->size = 0; + aln->regsRead = NULL; + aln->regsWritten = NULL; + aln->initialized = 0; + aln->currentDPS = currentDPS; + + return aln; +} + + +typedef struct ds390operanddata + { + char name[6]; + int regIdx1; + int regIdx2; + } +ds390operanddata; + +static ds390operanddata ds390operandDataTable[] = + { + {"_ap", AP_IDX, -1}, + {"a", A_IDX, -1}, + {"ab", A_IDX, B_IDX}, + {"ac", CND_IDX, -1}, + {"ap", AP_IDX, -1}, + {"acc", A_IDX, -1}, + {"ar0", R0_IDX, -1}, + {"ar1", R1_IDX, -1}, + {"ar2", R2_IDX, -1}, + {"ar3", R3_IDX, -1}, + {"ar4", R4_IDX, -1}, + {"ar5", R5_IDX, -1}, + {"ar6", R6_IDX, -1}, + {"ar7", R7_IDX, -1}, + {"b", B_IDX, -1}, + {"c", CND_IDX, -1}, + {"cy", CND_IDX, -1}, + {"dph", DPH_IDX, -1}, + {"dph0", DPH_IDX, -1}, + {"dph1", DPH1_IDX, -1}, + {"dpl", DPL_IDX, -1}, + {"dpl0", DPL_IDX, -1}, + {"dpl1", DPL1_IDX, -1}, +/* {"dptr", DPL_IDX, DPH_IDX}, */ /* dptr is special, based on currentDPS */ + {"dps", DPS_IDX, -1}, + {"dpx", DPX_IDX, -1}, + {"dpx0", DPX_IDX, -1}, + {"dpx1", DPX1_IDX, -1}, + {"f0", CND_IDX, -1}, + {"f1", CND_IDX, -1}, + {"ov", CND_IDX, -1}, + {"p", CND_IDX, -1}, + {"psw", CND_IDX, -1}, + {"r0", R0_IDX, -1}, + {"r1", R1_IDX, -1}, + {"r2", R2_IDX, -1}, + {"r3", R3_IDX, -1}, + {"r4", R4_IDX, -1}, + {"r5", R5_IDX, -1}, + {"r6", R6_IDX, -1}, + {"r7", R7_IDX, -1}, + }; + +static int +ds390operandCompare (const void *key, const void *member) +{ + return strcmp((const char *)key, ((ds390operanddata *)member)->name); +} + +static void +updateOpRW (asmLineNode *aln, char *op, char *optype, int currentDPS) +{ + ds390operanddata *opdat; + char *dot; + int regIdx1 = -1; + int regIdx2 = -1; + int regIdx3 = -1; + + dot = strchr(op, '.'); + if (dot) + *dot = '\0'; + + opdat = bsearch (op, ds390operandDataTable, + sizeof(ds390operandDataTable)/sizeof(ds390operanddata), + sizeof(ds390operanddata), ds390operandCompare); + + if (opdat) + { + regIdx1 = opdat->regIdx1; + regIdx2 = opdat->regIdx2; + } + if (!strcmp(op, "dptr")) + { + if (!currentDPS) + { + regIdx1 = DPL_IDX; + regIdx2 = DPH_IDX; + regIdx3 = DPX_IDX; + } + else + { + regIdx1 = DPL1_IDX; + regIdx2 = DPH1_IDX; + regIdx3 = DPX1_IDX; + } + } + + if (strchr(optype,'r')) + { + if (regIdx1 >= 0) + aln->regsRead = bitVectSetBit (aln->regsRead, regIdx1); + if (regIdx2 >= 0) + aln->regsRead = bitVectSetBit (aln->regsRead, regIdx2); + if (regIdx3 >= 0) + aln->regsRead = bitVectSetBit (aln->regsRead, regIdx3); + } + if (strchr(optype,'w')) + { + if (regIdx1 >= 0) + aln->regsWritten = bitVectSetBit (aln->regsWritten, regIdx1); + if (regIdx2 >= 0) + aln->regsWritten = bitVectSetBit (aln->regsWritten, regIdx2); + if (regIdx3 >= 0) + aln->regsWritten = bitVectSetBit (aln->regsWritten, regIdx3); + } + if (op[0] == '@') + { + if (!strcmp(op, "@r0")) + aln->regsRead = bitVectSetBit (aln->regsRead, R0_IDX); + if (!strcmp(op, "@r1")) + aln->regsRead = bitVectSetBit (aln->regsRead, R1_IDX); + if (strstr(op, "dptr")) + { + if (!currentDPS) + { + aln->regsRead = bitVectSetBit (aln->regsRead, DPL_IDX); + aln->regsRead = bitVectSetBit (aln->regsRead, DPH_IDX); + aln->regsRead = bitVectSetBit (aln->regsRead, DPX_IDX); + } + else + { + aln->regsRead = bitVectSetBit (aln->regsRead, DPL1_IDX); + aln->regsRead = bitVectSetBit (aln->regsRead, DPH1_IDX); + aln->regsRead = bitVectSetBit (aln->regsRead, DPX1_IDX); + } + } + if (strstr(op, "a+")) + aln->regsRead = bitVectSetBit (aln->regsRead, A_IDX); + } +} + +typedef struct ds390opcodedata + { + char name[6]; + char class[3]; + char pswtype[3]; + char op1type[3]; + char op2type[3]; + } +ds390opcodedata; + +static ds390opcodedata ds390opcodeDataTable[] = + { + {"acall","j", "", "", ""}, + {"add", "", "w", "rw", "r"}, + {"addc", "", "rw", "rw", "r"}, + {"ajmp", "j", "", "", ""}, + {"anl", "", "", "rw", "r"}, + {"cjne", "j", "w", "r", "r"}, + {"clr", "", "", "w", ""}, + {"cpl", "", "", "rw", ""}, + {"da", "", "rw", "rw", ""}, + {"dec", "", "", "rw", ""}, + {"div", "", "w", "rw", ""}, + {"djnz", "j", "", "rw", ""}, + {"inc", "", "", "rw", ""}, + {"jb", "j", "", "r", ""}, + {"jbc", "j", "", "rw", ""}, + {"jc", "j", "", "", ""}, + {"jmp", "j", "", "", ""}, + {"jnb", "j", "", "r", ""}, + {"jnc", "j", "", "", ""}, + {"jnz", "j", "", "", ""}, + {"jz", "j", "", "", ""}, + {"lcall","j", "", "", ""}, + {"ljmp", "j", "", "", ""}, + {"mov", "", "", "w", "r"}, + {"movc", "", "", "w", "r"}, + {"movx", "", "", "w", "r"}, + {"mul", "", "w", "rw", ""}, + {"nop", "", "", "", ""}, + {"orl", "", "", "rw", "r"}, + {"pop", "", "", "w", ""}, + {"push", "", "", "r", ""}, + {"ret", "j", "", "", ""}, + {"reti", "j", "", "", ""}, + {"rl", "", "", "rw", ""}, + {"rlc", "", "rw", "rw", ""}, + {"rr", "", "", "rw", ""}, + {"rrc", "", "rw", "rw", ""}, + {"setb", "", "", "w", ""}, + {"sjmp", "j", "", "", ""}, + {"subb", "", "rw", "rw", "r"}, + {"swap", "", "", "rw", ""}, + {"xch", "", "", "rw", "rw"}, + {"xchd", "", "", "rw", "rw"}, + {"xrl", "", "", "rw", "r"}, + }; + +static int +ds390opcodeCompare (const void *key, const void *member) +{ + return strcmp((const char *)key, ((ds390opcodedata *)member)->name); +} + +static asmLineNode * +asmLineNodeFromLineNode (lineNode *ln, int currentDPS) +{ + asmLineNode *aln = ds390newAsmLineNode(currentDPS); + char *op, op1[256], op2[256]; + int opsize; + const char *p; + char inst[8]; + ds390opcodedata *opdat; + + aln->initialized = 1; + + p = ln->line; + + while (*p && isspace(*p)) p++; + for (op = inst, opsize=1; *p; p++) + { + if (isspace(*p) || *p == ';' || *p == ':' || *p == '=') + break; + else + if (opsize < sizeof(inst)) + *op++ = tolower(*p), opsize++; + } + *op = '\0'; + + if (*p == ';' || *p == ':' || *p == '=') + return aln; + + while (*p && isspace(*p)) p++; + if (*p == '=') + return aln; + + for (op = op1, opsize=1; *p && *p != ','; p++) + { + if (!isspace(*p) && opsize < sizeof(op1)) + *op++ = tolower(*p), opsize++; + } + *op = '\0'; + + if (*p == ',') p++; + for (op = op2, opsize=1; *p && *p != ','; p++) + { + if (!isspace(*p) && opsize < sizeof(op2)) + *op++ = tolower(*p), opsize++; + } + *op = '\0'; + + aln->size = instructionSize(inst, op1, op2); + + aln->regsRead = newBitVect (END_IDX); + aln->regsWritten = newBitVect (END_IDX); + + opdat = bsearch (inst, ds390opcodeDataTable, + sizeof(ds390opcodeDataTable)/sizeof(ds390opcodedata), + sizeof(ds390opcodedata), ds390opcodeCompare); + + if (opdat) + { + updateOpRW (aln, op1, opdat->op1type, currentDPS); + updateOpRW (aln, op2, opdat->op2type, currentDPS); + if (strchr(opdat->pswtype,'r')) + aln->regsRead = bitVectSetBit (aln->regsRead, CND_IDX); + if (strchr(opdat->pswtype,'w')) + aln->regsWritten = bitVectSetBit (aln->regsWritten, CND_IDX); + } + + return aln; +} + +static void +initializeAsmLineNode (lineNode *line) +{ + if (!line->aln) + line->aln = asmLineNodeFromLineNode (line, 0); + else if (line->aln && !line->aln->initialized) + { + int currentDPS = line->aln->currentDPS; + free(line->aln); + line->aln = asmLineNodeFromLineNode (line, currentDPS); + } +} + +static int +getInstructionSize (lineNode *line) +{ + initializeAsmLineNode (line); + return line->aln->size; +} + +static bitVect * +getRegsRead (lineNode *line) +{ + initializeAsmLineNode (line); + return line->aln->regsRead; +} + +static bitVect * +getRegsWritten (lineNode *line) +{ + initializeAsmLineNode (line); + return line->aln->regsWritten; +} + + /** $1 is always the basename. $2 is always the output file. $3 varies @@ -319,7 +884,8 @@ static const char *_linkCmd[] = "aslink", "-nf", "\"$1\"", NULL }; -/* $3 is replaced by assembler.debug_opts resp. port->assembler.plain_opts */ static const char *_asmCmd[] = +/* $3 is replaced by assembler.debug_opts resp. port->assembler.plain_opts */ +static const char *_asmCmd[] = { "asx8051", "$l", "$3", "\"$1.asm\"", NULL }; @@ -329,41 +895,51 @@ PORT ds390_port = { TARGET_ID_DS390, "ds390", - "DS80C390", /* Target name */ + "DS80C390", /* Target name */ NULL, { - TRUE, /* Emit glue around main */ + glue, + TRUE, /* Emit glue around main */ MODEL_SMALL | MODEL_LARGE | MODEL_FLAT24, MODEL_SMALL }, { _asmCmd, NULL, - "-plosgffc", /* Options with debug */ - "-plosgff", /* 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" + ".rel", + 1 }, { - _defaultRules + _defaultRules, + getInstructionSize, + getRegsRead, + getRegsWritten }, { - /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */ + /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */ 1, 2, 2, 4, 1, 2, 3, 1, 4, 4 }, + + /* tags for generic pointers */ + { 0x00, 0x40, 0x60, 0x80 }, /* far, near, xstack, code */ + { "XSEG (XDATA)", "STACK (DATA)", "CSEG (CODE)", "DSEG (DATA)", "ISEG (DATA)", + "PSEG (PAG,XDATA)", "XSEG (XDATA)", "BSEG (BIT)", "RSEG (DATA)", @@ -371,12 +947,17 @@ PORT ds390_port = "OSEG (OVR,DATA)", "GSFINAL (CODE)", "HOME (CODE)", - "XISEG (XDATA)", // initialized xdata - "XINIT (CODE)", // a code copy of xiseg + "XISEG (XDATA)", // initialized xdata + "XINIT (CODE)", // a code copy of xiseg + "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/pdata + "IABS (ABS,DATA)", // iabs_name - absolute idata/data NULL, NULL, 1 }, + { NULL, NULL }, { +1, 1, 4, 1, 1, 0 }, @@ -384,9 +965,21 @@ PORT ds390_port = { 2, -1 }, + { + ds390_emitDebuggerSymbol + }, + { + 255/4, /* maxCount */ + 4, /* sizeofElement */ + {8,12,20}, /* sizeofMatchJump[] */ + {10,14,22}, /* sizeofRangeCompare[] */ + 4, /* sizeofSubtract */ + 7, /* sizeofDispatch */ + }, "_", _ds390_init, _ds390_parseOptions, + _ds390_options, NULL, _ds390_finaliseOptions, _ds390_setDefaultOptions, @@ -394,34 +987,55 @@ PORT ds390_port = _ds390_getRegName, _ds390_keywords, _ds390_genAssemblerPreamble, - NULL, /* no genAssemblerEnd */ + NULL, /* no genAssemblerEnd */ _ds390_genIVT, _ds390_genXINIT, + _ds390_genInitStartup, _ds390_reset_regparm, _ds390_regparm, NULL, NULL, - NULL, + _ds390_nativeMulCheck, + hasExtBitOp, /* hasExtBitOp */ + oclsExpense, /* oclsExpense */ FALSE, - 0, /* leave lt */ - 0, /* leave gt */ - 1, /* transform <= to ! > */ - 1, /* transform >= to ! < */ - 1, /* transform != to !(a == b) */ - 0, /* leave == */ - TRUE, /* we support array initializers. */ + TRUE, /* little 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. */ cseCostEstimation, __ds390_builtins, /* table of builtin functions */ - GPOINTER, /* treat unqualified pointers as "generic" pointers */ - 1, /* reset labelKey to 1 */ - 1, /* globals & local static allowed */ + GPOINTER, /* treat unqualified pointers as "generic" pointers */ + 1, /* reset labelKey to 1 */ + 1, /* globals & local static allowed */ PORT_MAGIC }; /*---------------------------------------------------------------------------------*/ -/* TININative specific */ +/* TININative specific */ /*---------------------------------------------------------------------------------*/ -/* Globals */ + +#define OPTION_TINI_LIBID "--tini-libid" + +static OPTION _tininative_options[] = + { + { 0, OPTION_FLAT24_MODEL, NULL, "use the flat24 model for the ds390 (default)" }, + { 0, OPTION_STACK_8BIT, NULL, "use the 8bit stack for the ds390 (not supported yet)" }, + { 0, OPTION_STACK_SIZE, &options.stack_size, "Tells the linker to allocate this space for stack", CLAT_INTEGER }, + { 0, "--pack-iram", NULL, "Tells the linker to pack variables in internal ram (default)"}, + { 0, "--no-pack-iram", &options.no_pack_iram, "Tells the linker not to pack variables in internal ram"}, + { 0, "--stack-10bit", &options.stack10bit, "use the 10bit stack for ds390 (default)" }, + { 0, "--use-accelerator", &options.useAccelerator, "generate code for ds390 arithmetic accelerator"}, + { 0, "--protect-sp-update", &options.protect_sp_update, "will disable interrupts during ESP:SP updates"}, + { 0, "--parms-in-bank1", &options.parms_in_bank1, "use Bank1 for parameter passing"}, + { 0, OPTION_TINI_LIBID, &options.tini_libid, " LibraryID used in -mTININative", CLAT_INTEGER }, + { 0, NULL } + }; + static void _tininative_init (void) { asm_addTree (&asm_a390_mapping); @@ -440,36 +1054,36 @@ static void _tininative_finaliseOptions (void) * adjust pointer sizes. */ if (options.model != MODEL_FLAT24) { - options.model = MODEL_FLAT24 ; - fprintf(stderr,"TININative supports only MODEL FLAT24\n"); + options.model = MODEL_FLAT24 ; + fprintf(stderr,"TININative supports only MODEL FLAT24\n"); } 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. - */ - + + 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. + */ + port->mem.default_local_map = xdata; port->mem.default_globl_map = xdata; - + if (!options.stack10bit) { - options.stack10bit = 1; - fprintf(stderr,"TININative supports only stack10bit \n"); + options.stack10bit = 1; + fprintf(stderr,"TININative supports only stack10bit \n"); } - + if (!options.stack_loc) options.stack_loc = 0x400008; - + /* generate native code 16*16 mul/div */ - if (options.useAccelerator) - port->support.muldiv=2; - else - port->support.muldiv=1; - + 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. */ @@ -478,10 +1092,11 @@ static void _tininative_finaliseOptions (void) options.cc_only =1; } -static int _tininative_genIVT (FILE * of, symbol ** interrupts, int maxInterrupts) +static int _tininative_genIVT (struct dbuf_s * oBuf, symbol ** interrupts, int maxInterrupts) { - return 1; + return TRUE; } + static void _tininative_genAssemblerPreamble (FILE * of) { fputs("$include(tini.inc)\n", of); @@ -497,13 +1112,13 @@ static void _tininative_genAssemblerPreamble (FILE * of) fputs("LibraryID:\n",of); fputs("\tdb \"DS\"\n",of); if (options.tini_libid) { - fprintf(of,"\tdb 0,0,0%02xh,0%02xh,0%02xh,0%02xh\n", - (options.tini_libid>>24 & 0xff), - (options.tini_libid>>16 & 0xff), - (options.tini_libid>>8 & 0xff), - (options.tini_libid & 0xff)); + fprintf(of,"\tdb 0,0,0%02xh,0%02xh,0%02xh,0%02xh\n", + (options.tini_libid>>24 & 0xff), + (options.tini_libid>>16 & 0xff), + (options.tini_libid>>8 & 0xff), + (options.tini_libid & 0xff)); } else { - fprintf(of,"\tdb 0,0,0,0,0,1\n"); + fprintf(of,"\tdb 0,0,0,0,0,1\n"); } } @@ -515,21 +1130,21 @@ static void _tininative_genAssemblerEnd (FILE * of) static void _tininative_do_assemble (set *asmOptions) { static const char *macroCmd[] = { - "macro","$1.a51",NULL + "macro","$1.a51",NULL }; static const char *a390Cmd[] = { - "a390","$1.mpp",NULL + "a390","$1.mpp",NULL }; char buffer[100]; buildCmdLine(buffer,macroCmd,dstFileName,NULL,NULL,NULL); if (my_system(buffer)) { - exit(1); + exit(1); } buildCmdLine(buffer,a390Cmd,dstFileName,NULL,NULL,asmOptions); if (my_system(buffer)) { - exit(1); - } + exit(1); + } } /* list of key words used by TININative */ @@ -565,7 +1180,7 @@ static char *_tininative_keywords[] = static builtins __tininative_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) */ + { "__builtin_memset_x","v",3,{"cx*","c","i"}}, /* void __builtin_memset (xdata char *,char,int) */ /* TINI NatLib */ { "NatLib_LoadByte","c",1,{"c"}}, /* char Natlib_LoadByte (0 based parameter number) */ { "NatLib_LoadShort","s",1,{"c"}}, /* short Natlib_LoadShort (0 based parameter number) */ @@ -582,13 +1197,13 @@ static builtins __tininative_builtins[] = { { "MM_XMalloc","i",1,{"l"}}, /* int MM_XMalloc (long) */ { "MM_Malloc","i",1,{"i"}}, /* int MM_Malloc (int) */ { "MM_ApplicationMalloc","i",1,{"i"}}, /* int MM_ApplicationMalloc (int) */ - { "MM_Free","i",1,{"i"}}, /* int MM_Free (int) */ - { "MM_Deref","cx*",1,{"i"}}, /* char *MM_Free (int) */ + { "MM_Free","i",1,{"i"}}, /* int MM_Free (int) */ + { "MM_Deref","cx*",1,{"i"}}, /* char *MM_Free (int) */ { "MM_UnrestrictedPersist","c",1,{"i"}}, /* char MM_UnrestrictedPersist (int) */ /* System functions */ { "System_ExecJavaProcess","c",2,{"cx*","i"}}, /* char System_ExecJavaProcess (char *,int) */ - { "System_GetRTCRegisters","v",1,{"cx*"}}, /* void System_GetRTCRegisters (char *) */ - { "System_SetRTCRegisters","v",1,{"cx*"}}, /* void System_SetRTCRegisters (char *) */ + { "System_GetRTCRegisters","v",1,{"cx*"}}, /* void System_GetRTCRegisters (char *) */ + { "System_SetRTCRegisters","v",1,{"cx*"}}, /* void System_SetRTCRegisters (char *) */ { "System_ThreadSleep","v",2,{"l","c"}}, /* void System_ThreadSleep (long,char) */ { "System_ThreadSleep_ExitCriticalSection","v",2,{"l","c"}},/* void System_ThreadSleep_ExitCriticalSection (long,char) */ { "System_ProcessSleep","v",2,{"l","c"}}, /* void System_ProcessSleep (long,char) */ @@ -603,29 +1218,31 @@ static builtins __tininative_builtins[] = { { "System_RemovePoll","c",1,{"vF*"}}, /* char System_RemovePoll ((void *func pointer)()) */ { "System_GetCurrentProcessId","c",0,{NULL}}, /* char System_GetCurrentProcessId() */ { "System_GetCurrentThreadId","c",0,{NULL}}, /* char System_GetCurrentThreadId() */ - { NULL , NULL,0, {NULL}} /* mark end of table */ -}; + { NULL , NULL,0, {NULL}} /* mark end of table */ +}; static const char *_a390Cmd[] = { "macro", "$l", "$3", "$1.a51", NULL }; + PORT tininative_port = { TARGET_ID_DS390, "TININative", - "DS80C390", /* Target name */ - NULL, /* processor */ + "DS80C390", /* Target name */ + NULL, /* processor */ { - FALSE, /* Emit glue around main */ + glue, + FALSE, /* Emit glue around main */ MODEL_FLAT24, MODEL_FLAT24 }, { _a390Cmd, NULL, - "-l", /* Options with debug */ - "-l", /* Options without debug */ + "-l", /* Options with debug */ + "-l", /* Options without debug */ 0, ".a51", _tininative_do_assemble @@ -635,33 +1252,46 @@ PORT tininative_port = NULL, NULL, ".tlib", + 1 }, { - _defaultRules + _defaultRules, + getInstructionSize, + getRegsRead, + getRegsWritten }, { - /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */ + /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */ 1, 2, 2, 4, 1, 3, 3, 1, 4, 4 }, + /* tags for generic pointers */ + { 0x00, 0x40, 0x60, 0x80 }, /* far, near, xstack, code */ + { "XSEG (XDATA)", "STACK (DATA)", "CSEG (CODE)", "DSEG (DATA)", "ISEG (DATA)", + "PSEG (PAG,XDATA)", "XSEG (XDATA)", "BSEG (BIT)", "RSEG (DATA)", "GSINIT (CODE)", "OSEG (OVR,DATA)", "GSFINAL (CODE)", - "HOME (CODE)", + "HOME (CODE)", NULL, NULL, + "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/pdata + "IABS (ABS,DATA)", // iabs_name - absolute idata/data NULL, NULL, 1 }, + { NULL, NULL }, { +1, 1, 4, 1, 1, 0 }, @@ -669,9 +1299,21 @@ PORT tininative_port = { 2, -1 }, + { + ds390_emitDebuggerSymbol + }, + { + 255/4, /* maxCount */ + 4, /* sizeofElement */ + {8,12,20}, /* sizeofMatchJump[] */ + {10,14,22}, /* sizeofRangeCompare[] */ + 4, /* sizeofSubtract */ + 7, /* sizeofDispatch */ + }, "", _tininative_init, _ds390_parseOptions, + _tininative_options, NULL, _tininative_finaliseOptions, _tininative_setDefaultOptions, @@ -682,23 +1324,280 @@ PORT tininative_port = _tininative_genAssemblerEnd, _tininative_genIVT, NULL, + _ds390_genInitStartup, _ds390_reset_regparm, _ds390_regparm, NULL, NULL, NULL, + hasExtBitOp, /* hasExtBitOp */ + oclsExpense, /* oclsExpense */ FALSE, - 0, /* leave lt */ - 0, /* leave gt */ - 1, /* transform <= to ! > */ - 1, /* transform >= to ! < */ - 1, /* transform != to !(a == b) */ - 0, /* leave == */ - TRUE, /* we support array initializers. */ + TRUE, /* little 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. */ cseCostEstimation, __tininative_builtins, /* table of builtin functions */ - FPOINTER, /* treat unqualified pointers as far pointers */ - 0, /* DONOT reset labelKey */ - 0, /* globals & local static NOT allowed */ + FPOINTER, /* treat unqualified pointers as far pointers */ + 0, /* DONOT reset labelKey */ + 0, /* globals & local static NOT allowed */ + PORT_MAGIC +}; + +static int +_ds400_genIVT (struct dbuf_s * oBuf, symbol ** interrupts, int maxInterrupts) +{ + /* We can't generate a static IVT, since the boot rom creates one + * for us in rom_init. + * + * we must patch it as part of the C startup. + */ + dbuf_printf (oBuf, ";\tDS80C400 IVT must be generated at runtime.\n"); + dbuf_printf (oBuf, "\tsjmp\t__sdcc_400boot\n"); + dbuf_printf (oBuf, "\t.ascii\t'TINI'\t; required signature for 400 boot loader.\n"); + dbuf_printf (oBuf, "\t.db\t0\t; selected bank: zero *should* work...\n"); + dbuf_printf (oBuf, "\t__sdcc_400boot:\tljmp\t__sdcc_gsinit_startup\n"); + + return TRUE; +} + + +/*---------------------------------------------------------------------------------*/ +/* _ds400 specific */ +/*---------------------------------------------------------------------------------*/ + +static OPTION _ds400_options[] = + { + { 0, OPTION_FLAT24_MODEL, NULL, "use the flat24 model for the ds400 (default)" }, + { 0, OPTION_STACK_8BIT, NULL, "use the 8bit stack for the ds400 (not supported yet)" }, + { 0, OPTION_STACK_SIZE, &options.stack_size, "Tells the linker to allocate this space for stack", CLAT_INTEGER }, + { 0, "--pack-iram", NULL, "Tells the linker to pack variables in internal ram (default)"}, + { 0, "--no-pack-iram", &options.no_pack_iram, "Tells the linker not to pack variables in internal ram"}, + { 0, "--stack-10bit", &options.stack10bit, "use the 10bit stack for ds400 (default)" }, + { 0, "--use-accelerator", &options.useAccelerator, "generate code for ds400 arithmetic accelerator"}, + { 0, "--protect-sp-update", &options.protect_sp_update, "will disable interrupts during ESP:SP updates"}, + { 0, "--parms-in-bank1", &options.parms_in_bank1, "use Bank1 for parameter passing"}, + { 0, NULL } + }; + +static void +_ds400_finaliseOptions (void) +{ + if (options.noXinitOpt) { + port->genXINIT=0; + } + + // hackhack: we're a superset of the 390. + addSet(&preArgvSet, Safe_strdup("-DSDCC_ds390")); + addSet(&preArgvSet, Safe_strdup("-D__ds390")); + + /* Hack-o-matic: if we are using the flat24 model, + * adjust pointer sizes. + */ + if (options.model != MODEL_FLAT24) { + fprintf (stderr, + "*** warning: ds400 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. + */ + + port->mem.default_local_map = xdata; + port->mem.default_globl_map = xdata; + + if (!options.stack10bit) + { + fprintf (stderr, + "*** error: ds400 port only supports the 10 bit stack mode.\n"); + } else { + if (!options.stack_loc) options.stack_loc = 0xffdc00; + // assumes IDM1:0 = 1:0, CMA = 1. + } + + /* 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; + + if (options.parms_in_bank1) { + addSet(&preArgvSet, Safe_strdup("-DSDCC_PARMS_IN_BANK1")); + } + + // the DS400 rom calling interface uses register bank 3. + RegBankUsed[3] = 1; + + } /* MODEL_FLAT24 */ +} + +static void _ds400_generateRomDataArea(FILE *fp, bool isMain) +{ + /* Only do this for the file containing main() */ + if (isMain) + { + fprintf(fp, "%s", iComments2); + fprintf(fp, "; the direct data area used by the DS80c400 ROM code.\n"); + fprintf(fp, "%s", iComments2); + fprintf(fp, ".area ROMSEG (ABS,CON,DATA)\n\n"); + fprintf(fp, ".ds 24 ; 24 bytes of directs used starting at 0x68\n\n"); + } +} + +static void _ds400_linkRomDataArea(FILE *fp) +{ + fprintf(fp, "-b ROMSEG = 0x0068\n"); +} + + +PORT ds400_port = +{ + TARGET_ID_DS400, + "ds400", + "DS80C400", /* Target name */ + NULL, + { + glue, + TRUE, /* Emit glue around main */ + MODEL_SMALL | MODEL_LARGE | MODEL_FLAT24, + MODEL_SMALL + }, + { + _asmCmd, + NULL, + "-plosgffc", /* Options with debug */ + "-plosgff", /* Options without debug */ + 0, + ".asm", + NULL /* no do_assemble function */ + }, + { + _linkCmd, + NULL, + NULL, + ".rel", + 1 + }, + { + _defaultRules, + getInstructionSize, + getRegsRead, + getRegsWritten + }, + { + /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */ + 1, 2, 2, 4, 1, 2, 3, 1, 4, 4 + }, + + /* tags for generic pointers */ + { 0x00, 0x40, 0x60, 0x80 }, /* far, near, xstack, code */ + + { + "XSEG (XDATA)", + "STACK (DATA)", + "CSEG (CODE)", + "DSEG (DATA)", + "ISEG (DATA)", + "PSEG (PAG,XDATA)", + "XSEG (XDATA)", + "BSEG (BIT)", + "RSEG (DATA)", + "GSINIT (CODE)", + "OSEG (OVR,DATA)", + "GSFINAL (CODE)", + "HOME (CODE)", + "XISEG (XDATA)", // initialized xdata + "XINIT (CODE)", // a code copy of xiseg + "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/pdata + "IABS (ABS,DATA)", // iabs_name - absolute idata/data + NULL, + NULL, + 1 + }, + { _ds400_generateRomDataArea, _ds400_linkRomDataArea }, + { + +1, 1, 4, 1, 1, 0 + }, + /* ds390 has an 16 bit mul & div */ + { + 2, -1 + }, + { + ds390_emitDebuggerSymbol + }, + { + 255/4, /* maxCount */ + 4, /* sizeofElement */ + {8,12,20}, /* sizeofMatchJump[] */ + {10,14,22}, /* sizeofRangeCompare[] */ + 4, /* sizeofSubtract */ + 7, /* sizeofDispatch */ + }, + "_", + _ds390_init, + _ds390_parseOptions, + _ds400_options, + NULL, + _ds400_finaliseOptions, + _ds390_setDefaultOptions, + ds390_assignRegisters, + _ds390_getRegName, + _ds390_keywords, + _ds390_genAssemblerPreamble, + NULL, /* no genAssemblerEnd */ + _ds400_genIVT, + _ds390_genXINIT, + _ds390_genInitStartup, + _ds390_reset_regparm, + _ds390_regparm, + NULL, + NULL, + _ds390_nativeMulCheck, + hasExtBitOp, /* hasExtBitOp */ + oclsExpense, /* oclsExpense */ + FALSE, + TRUE, /* little 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. */ + cseCostEstimation, + __ds390_builtins, /* table of builtin functions */ + GPOINTER, /* treat unqualified pointers as "generic" pointers */ + 1, /* reset labelKey to 1 */ + 1, /* globals & local static allowed */ PORT_MAGIC };