/*------------------------------------------------------------------------- main.h - ds390 specific general functions Copyright (C) 2000, Kevin Vigor This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -------------------------------------------------------------------------*/ /* Note that mlh prepended _ds390_ on the static functions. Makes it easier to set a breakpoint using the debugger. */ #include "common.h" #include "main.h" #include "ralloc.h" #include "gen.h" #include "dbuf_string.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, "Deprecated: 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[] = { "at", "bit", "code", "critical", "data", "far", "idata", "interrupt", "near", "pdata", "reentrant", "sfr", "sfr16", "sfr32", "sbit", "using", "xdata", "_data", "_code", "_generic", "_near", "_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) */ /* __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_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 (ebbIndex * ebbi); static int regParmFlg = 0; /* determine if we can register a parameter */ static void _ds390_init (void) { asm_addTree (&asm_asxxxx_mapping); } static void _ds390_reset_regparm (struct sym_link *funcType) { regParmFlg = 0; } static int _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; 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 */ remain = regParmFlg - 4; if (size > (8 - remain)) { regParmFlg = 12 ; return 0; } regParmFlg += size ; return regParmFlg - size + 1; } } static bool _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; } static void _ds390_finaliseOptions (void) { if (options.noXinitOpt) { port->genXINIT=0; } /* Hack-o-matic: if we are using the flat24 model, * adjust pointer sizes. */ if (options.model != MODEL_FLAT24) { fprintf (stderr, "*** 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.far_ptr_size = 3; port->s.funcptr_size = 3; port->s.ptr_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: ds390 port only supports the 10 bit stack mode.\n"); } else { if (!options.stack_loc) options.stack_loc = 0x400008; } /* Fixup the memory map for the stack; it is now in * far space and requires an 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 * _ds390_getRegName (const struct reg_info *reg) { if (reg) return reg->name; return "err"; } extern char * iComments2; static void _ds390_genAssemblerPreamble (FILE * of) { fputs (iComments2, of); fputs ("; CPU specific extensions\n",of); fputs (iComments2, of); fputs ("\t.DS80C390\n", of); if (options.model == MODEL_FLAT24) fputs ("\t.amode\t2\t; 24 bit flat addressing\n", of); fputs ("dpl\t=\t0x82\n", of); fputs ("dph\t=\t0x83\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 ("acc1\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 ("acon\t=\t0x9D\n", of); fputs ("mcon\t=\t0xC6\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\t=\t0x%02X\n",i,8+i); } } /* Generate interrupt vector table. */ static int _ds390_genIVT (struct dbuf_s * oBuf, symbol ** interrupts, int maxInterrupts) { int i; if (options.model != MODEL_FLAT24) { 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"); } } } else { dbuf_printf (oBuf, "\t.amode\t0\t; 16 bit addressing\n"); dbuf_printf (oBuf, "\tljmp\t__reset_vect\n"); dbuf_printf (oBuf, "\t.amode\t2\t; 24 bit flat addressing\n"); /* now for the other interrupts */ for (i = 0; i < maxInterrupts; i++) { if (interrupts[i]) { dbuf_printf (oBuf, "\tljmp\t%s\n\t.ds\t4\n", interrupts[i]->rname); } else { dbuf_printf (oBuf, "\treti\n\t.ds\t7\n"); } } dbuf_printf (oBuf, "__reset_vect:\n"); if (options.stack10bit) { dbuf_printf (oBuf, "\tmov _TA,#0xAA\n"); dbuf_printf (oBuf, "\tmov _TA,#0x55\n"); dbuf_printf (oBuf, "\tmov acon,#0x06\t;24 bit addresses, 10 bit stack\n"); dbuf_printf (oBuf, "\tmov _TA,#0xAA\n"); dbuf_printf (oBuf, "\tmov _TA,#0x55\n"); dbuf_printf (oBuf, "\tmov mcon,#0x90\t;10 bit stack at 0x400000\n"); dbuf_printf (oBuf, "\tmov _ESP,#0x00\t; reinitialize the stack\n"); dbuf_printf (oBuf, "\tmov _SP,#0x00\n"); } else { dbuf_printf (oBuf, "\tmov _TA,#0xAA\n"); dbuf_printf (oBuf, "\tmov _TA,#0x55\n"); dbuf_printf (oBuf, "\tmov acon,#0x02\t;24 bit addresses, default 8 bit stack\n"); } dbuf_printf (oBuf, "\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 xdata location 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 && !options.stack10bit) { /* initialise the stack pointer. JCF: sdld 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"); 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"); fprintf (of, "; _ds390_genXRAMCLEAR() start\n"); fprintf (of, " mov r0,#l_PSEG\n"); fprintf (of, " mov a,r0\n"); fprintf (of, " orl a,#(l_PSEG >> 8)\n"); fprintf (of, " jz 00006$\n"); fprintf (of, " mov r1,#s_PSEG\n"); fprintf (of, " mov _P2,#(s_PSEG >> 8)\n"); fprintf (of, " clr a\n"); fprintf (of, "00005$: movx @r1,a\n"); fprintf (of, " inc r1\n"); fprintf (of, " djnz r0,00005$\n"); fprintf (of, "00006$: mov r0,#l_XSEG\n"); fprintf (of, " mov a,r0\n"); fprintf (of, " orl a,#(l_XSEG >> 8)\n"); fprintf (of, " jz 00008$\n"); fprintf (of, " mov r1,#((l_XSEG + 255) >> 8)\n"); fprintf (of, " mov dptr,#s_XSEG\n"); fprintf (of, " clr a\n"); fprintf (of, "00007$: movx @dptr,a\n"); fprintf (of, " inc dptr\n"); fprintf (of, " djnz r0,00007$\n"); fprintf (of, " djnz r1,00007$\n"); fprintf (of, "00008$:\n"); fprintf (of, "; _ds390_genXRAMCLEAR() 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; } bool _ds390_nativeMulCheck(iCode *ic, sym_link *left, sym_link *right) { return getSize (left) == 1 && getSize (right) == 1 || options.useAccelerator && getSize (left) == 2 && getSize (right) == 2; } /* 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[] = { {"acc1", 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 = (asmLineNodeBase *) asmLineNodeFromLineNode (line, 0); else if (line->aln && !((asmLineNode *)line->aln)->initialized) { int currentDPS = ((asmLineNode *)line->aln)->currentDPS; free(line->aln); line->aln = (asmLineNodeBase *) 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; } static const char * get_model (void) { switch (options.model) { case MODEL_SMALL: if (options.stackAuto) return "small-stack-auto"; else return "small"; case MODEL_LARGE: if (options.stackAuto) return "large-stack-auto"; else return "large"; case MODEL_FLAT24: return port->target; default: werror (W_UNKNOWN_MODEL, __FILE__, __LINE__); return "unknown"; } } /** $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[] = { "sdld", "-nf", "$1", NULL }; /* $3 is replaced by assembler.debug_opts resp. port->assembler.plain_opts */ static const char *_asmCmd[] = { "sdas390", "$l", "$3", "$2", "$1.asm", NULL }; static const char * const _libs_ds390[] = { STD_DS390_LIB, NULL, }; /* Globals */ PORT ds390_port = { TARGET_ID_DS390, "ds390", "DS80C390", /* Target name */ NULL, { glue, TRUE, /* Emit glue around main */ MODEL_SMALL | MODEL_LARGE | MODEL_FLAT24, MODEL_SMALL, get_model, }, { _asmCmd, NULL, "-plosgffwy", /* Options with debug */ "-plosgffw", /* Options without debug */ 0, ".asm", NULL /* no do_assemble function */ }, { /* Linker */ _linkCmd, NULL, NULL, ".rel", 1, NULL, /* crt */ _libs_ds390, /* libs */ }, { _defaultRules, getInstructionSize, getRegsRead, getRegsWritten, NULL, NULL, NULL, NULL, NULL, }, /* Sizes: char, short, int, long, long long, near ptr, far ptr, gptr, bit, float */ { 1, 2, 2, 4, 8, 1, 2, 3, 2, 3, 1, 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, // name of segment for initialized variables NULL, // name of segment for copies of initialized variables in code space NULL, NULL, 1, 1 // No fancy alignments supported. }, { NULL, NULL }, { +1, 1, 4, 1, 1, 0, 0 }, /* ds390 has an 16 bit mul & div */ { -1, FALSE }, { 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, ds390_assignRegisters, _ds390_getRegName, 0, NULL, _ds390_keywords, _ds390_genAssemblerPreamble, NULL, /* no genAssemblerEnd */ _ds390_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 */ 0, /* Number of registers handled in the tree-decomposition-based register allocator in SDCCralloc.hpp */ PORT_MAGIC }; /*---------------------------------------------------------------------------------*/ /* TININative specific */ /*---------------------------------------------------------------------------------*/ #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, "Deprecated: 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); } static void _tininative_setDefaultOptions (void) { options.model=MODEL_FLAT24; options.stack10bit=1; options.stackAuto = 1; } static void _tininative_finaliseOptions (void) { /* Hack-o-matic: if we are using the flat24 model, * adjust pointer sizes. */ if (options.model != MODEL_FLAT24) { options.model = MODEL_FLAT24 ; fprintf(stderr,"TININative supports only MODEL FLAT24\n"); } port->s.far_ptr_size = 3; port->s.funcptr_size = 3; port->s.ptr_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 address 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"); } if (!options.stack_loc) options.stack_loc = 0x400008; /* 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; options.cc_only =1; } static int _tininative_genIVT (struct dbuf_s * oBuf, symbol ** interrupts, int maxInterrupts) { return TRUE; } static void _tininative_genAssemblerPreamble (FILE * of) { fputs("$include(tini.inc)\n", of); fputs("$include(ds80c390.inc)\n", of); fputs("$include(tinimacro.inc)\n", of); fputs("$include(apiequ.inc)\n", of); fputs("_bpx EQU 01Eh \t\t; _bpx (frame pointer) mapped to R7_B3:R6_B3\n", of); fputs("acc1 EQU 01Dh \t\t; acc1 mapped to R5_B3\n", of); /* Must be first and return 0 */ fputs("Lib_Native_Init:\n",of); fputs("\tclr\ta\n",of); fputs("\tret\n",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)); } else { fprintf(of,"\tdb 0,0,0,0,0,1\n"); } } static void _tininative_genAssemblerEnd (FILE * of) { fputs("\tend\n",of); } /* tininative assembler , calls "macro", if it succeeds calls "a390" */ static void _tininative_do_assemble (set *asmOptions) { char *buf; static const char *macroCmd[] = { "macro","$1.a51",NULL }; static const char *a390Cmd[] = { "a390","$1.mpp",NULL }; buf = buildCmdLine(macroCmd, dstFileName, NULL, NULL, NULL); if (sdcc_system(buf)) { Safe_free (buf); exit(1); } Safe_free (buf); buf = buildCmdLine(a390Cmd, dstFileName, NULL, NULL, asmOptions); if (sdcc_system(buf)) { Safe_free (buf); exit(1); } Safe_free (buf); } /* list of key words used by TININative */ static char *_tininative_keywords[] = { "at", "bit", "code", "critical", "data", "far", "idata", "interrupt", "near", "pdata", "reentrant", "sfr", "sbit", "using", "xdata", "_data", "_code", "_generic", "_near", "_xdata", "_pdata", "_idata", "_naked", "_JavaNative", NULL }; 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) */ /* 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) */ { "NatLib_LoadInt","l",1,{"c"}}, /* long Natlib_LoadLong (0 based parameter number) */ { "NatLib_LoadPointer","cx*",1,{"c"}}, /* long Natlib_LoadPointer (0 based parameter number) */ /* TINI StateBlock related */ { "NatLib_InstallImmutableStateBlock","c",2,{"vx*","us"}},/* char NatLib_InstallImmutableStateBlock(state block *,int handle) */ { "NatLib_InstallEphemeralStateBlock","c",2,{"vx*","us"}},/* char NatLib_InstallEphemeralStateBlock(state block *,int handle) */ { "NatLib_RemoveImmutableStateBlock","v",0,{NULL}},/* void NatLib_RemoveImmutableStateBlock() */ { "NatLib_RemoveEphemeralStateBlock","v",0,{NULL}},/* void NatLib_RemoveEphemeralStateBlock() */ { "NatLib_GetImmutableStateBlock","i",0,{NULL}}, /* int NatLib_GetImmutableStateBlock () */ { "NatLib_GetEphemeralStateBlock","i",0,{NULL}}, /* int NatLib_GetEphemeralStateBlock () */ /* Memory manager */ { "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_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_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) */ { "System_ProcessSleep_ExitCriticalSection","v",2,{"l","c"}},/* void System_ProcessSleep_ExitCriticalSection (long,char) */ { "System_ThreadResume","c",2,{"c","c"}}, /* char System_ThreadResume(char,char) */ { "System_SaveJavaThreadState","v",0,{NULL}}, /* void System_SaveJavaThreadState() */ { "System_RestoreJavaThreadState","v",0,{NULL}}, /* void System_RestoreJavaThreadState() */ { "System_ProcessYield","v",0,{NULL}}, /* void System_ProcessYield() */ { "System_ProcessSuspend","v",0,{NULL}}, /* void System_ProcessSuspend() */ { "System_ProcessResume","v",1,{"c"}}, /* void System_ProcessResume(char) */ { "System_RegisterPoll","c",1,{"vF*"}}, /* char System_RegisterPoll ((void *func pointer)()) */ { "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 */ }; static const char *_a390Cmd[] = { "macro", "$l", "$3", "$1.a51", NULL }; PORT tininative_port = { TARGET_ID_DS390, "TININative", "DS80C390", /* Target name */ NULL, /* processor */ { glue, FALSE, /* Emit glue around main */ MODEL_FLAT24, MODEL_FLAT24, get_model, }, { _a390Cmd, NULL, "-l", /* Options with debug */ "-l", /* Options without debug */ 0, ".a51", _tininative_do_assemble }, { /* Linker */ NULL, NULL, NULL, ".tlib", 1, NULL, /* crt */ _libs_ds390, /* libs */ }, { _defaultRules, getInstructionSize, getRegsRead, getRegsWritten, NULL, NULL, NULL, NULL, NULL, }, /* Sizes: char, short, int, long, long long, near ptr, far ptr, gptr, func ptr, banked func ptr, bit, float */ { 1, 2, 2, 4, 8, 1, 3, 3, 3, 3, 1, 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)", 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, // name of segment for initialized variables NULL, // name of segment for copies of initialized variables in code space NULL, NULL, 1, 1 // No fancy alignments supported. }, { NULL, NULL }, { +1, 1, 4, 1, 1, 0, 0 }, /* ds390 has an 16 bit mul & div */ { -1, FALSE }, { 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, ds390_assignRegisters, _ds390_getRegName, 0, NULL, _tininative_keywords, _tininative_genAssemblerPreamble, _tininative_genAssemblerEnd, _tininative_genIVT, NULL, _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, __tininative_builtins, /* table of builtin functions */ FPOINTER, /* treat unqualified pointers as far pointers */ 0, /* DONOT reset labelKey */ 0, /* globals & local static NOT allowed */ 0, /* Number of registers handled in the tree-decomposition-based register allocator in SDCCralloc.hpp */ 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, "Deprecated: 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("-D__SDCC_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.far_ptr_size = 3; port->s.funcptr_size = 3; port->s.ptr_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. } /* 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; // 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"); } static const char * const _libs_ds400[] = { STD_DS400_LIB, NULL, }; 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, get_model, }, { _asmCmd, NULL, "-plosgffwy", /* Options with debug */ "-plosgffw", /* Options without debug */ 0, ".asm", NULL /* no do_assemble function */ }, { /* Linker */ _linkCmd, NULL, NULL, ".rel", 1, NULL, /* crt */ _libs_ds400, /* libs */ }, { /* Peephole optimizer */ _defaultRules, getInstructionSize, getRegsRead, getRegsWritten, NULL, NULL, NULL, NULL, NULL, }, /* Sizes: char, short, int, long, long long, near ptr, far ptr, gptr, func ptr, banked func ptr, bit, float */ { 1, 2, 2, 4, 8, 1, 2, 3, 2, 3, 1, 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, // name of segment for initialized variables NULL, // name of segment for copies of initialized variables in code space NULL, NULL, 1 }, { _ds400_generateRomDataArea, _ds400_linkRomDataArea }, { +1, 1, 4, 1, 1, 0, 0 }, { -1, FALSE }, { 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, 0, NULL, _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 */ 0, /* Number of registers handled in the tree-decomposition-based register allocator in SDCCralloc.hpp */ PORT_MAGIC };