diff options
Diffstat (limited to 'sim/w65/gencode.c')
| -rw-r--r-- | sim/w65/gencode.c | 991 |
1 files changed, 0 insertions, 991 deletions
diff --git a/sim/w65/gencode.c b/sim/w65/gencode.c deleted file mode 100644 index cbbeb5b..0000000 --- a/sim/w65/gencode.c +++ /dev/null @@ -1,991 +0,0 @@ -/* Program to write out opcode tables for the W65816 and friends - Copyright (C) 1995 Free Software Foundation, Inc. - Written by Steve Chamberlain sac@cygnus.com - - -GDB 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. - -GDB 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, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - - -#include <stdio.h> - - -struct opinfo - { - int code; - char *opcode; - char *mode; - int clocks; - int cpu; - struct ainfo *ai; - struct oinfo *oi; - }; - -#define W16_ONLY 1 -#define C02_ONLY 2 - -struct ainfo - { - char *name; - char *enumname; - char *disasmstring; - char *sizer; - char *reloc0; - char *howlval; - - /* If addr val could be reg addr - used for disasssmbly of - args into reg names - you want lda <0x10 to turn into lda <r0 - but you don't want lda #0x10 to do the same. */ - char regflag; - }; - -#define GET_M 1 -#define SPECIAL_CASE 2 -#define COP_GET 3 -#define G2_GET 4 -#define BRANCH 5 -#define GET_X 6 -#define STANDARD_PC_GET 7 -#define PUSH_16 8 -#define PUSH_8 9 -#define PUSH_X 10 -#define PUSH_M 11 -#define POP_16 12 -#define POP_8 13 -#define POP_X 14 -#define POP_M 15 -#define STORE_M 16 -#define STORE_X 17 -struct oinfo - { - char *name; - int howsrc; - char *howto; - }; -struct oinfo olist[] = -{ - {"adc", GET_M, "{ int old_acc = GET_A; int old_src =src; src = old_src + old_acc + GET_CBIT; SET_NBIT_M(src); SET_VBIT_M(old_src, old_acc, src); SET_CBIT_M(src); SET_ZBIT_M(src); SET_A(src);}"}, - {"and", GET_M, "src = GET_A & src; SET_NBIT_M(src); SET_ZBIT_M(src);SET_A(src);"}, - {"asl", G2_GET, " src <<=1; SET_CBIT_M(src); SET_ZBIT_M(src);SET_NBIT_M(src);"}, - {"bcc", BRANCH, "GET_CBIT==0"}, - {"bcs", BRANCH, "GET_CBIT==1"}, - {"beq", BRANCH, "GET_ZBIT==1"}, - {"bit", GET_M, "SET_NBIT_M(src); SET_VBIT((src >> (GET_MBIT ? 6:14 ) &1)); SET_ZBIT_M (GET_A & src);"}, - {"bmi", BRANCH, "GET_NBIT==1"}, - {"bne", BRANCH, "GET_ZBIT==0"}, - {"bpl", BRANCH, "GET_NBIT==0"}, - {"bra", BRANCH, "1"}, - {"brk", SPECIAL_CASE, - "\ -{\ - if (GET_E == 1) \ - { PUSH16(GET_PC + 1); PUSH8 (GET_P | BFLAG); SET_P (GET_P | IFLAG); SET_ONLY_PC(fetch16 (0xfffe));}\ - else \ - { PUSH8 (GET_PBR_LOW); PUSH16 (GET_PC); PUSH8(GET_P); SET_P(GET_P |IFLAG); SET_PBRPC(fetch16 (0xffe6));};\ - }"}, - {"brl", BRANCH, "1"}, - {"bvc", BRANCH, "GET_VBIT==0"}, - {"bvs", BRANCH, "GET_VBIT==1"}, - {"clc", SPECIAL_CASE, "SET_CBIT(0);"}, - {"cld", SPECIAL_CASE, "SET_DBIT(0);"}, - {"cli", SPECIAL_CASE, "SET_IBIT(0);"}, - {"clv", SPECIAL_CASE, "SET_VBIT(0);"}, - {"cmp", GET_M, "src = GET_A - src; SET_ZBIT_M(src); SET_CBIT_M(~src); SET_NBIT_M(src);"}, - {"cop", COP_GET, - "\ -{\ - if (GET_E == 1) \ - { PUSH16(GET_PC + 1); PUSH8 (GET_P | BFLAG); SET_P ((GET_P | IFLAG) & ~DFLAG); SET_ONLY_PC(fetch16 (0xfff4));}\ - else \ - { PUSH8 (GET_PBR_LOW); PUSH16 (GET_PC); PUSH8(GET_P); SET_P((GET_P |IFLAG) & ~DFLAG); SET_PBRPC(fetch16 (0xffe4));};\ - }"}, - {"cpx", GET_X, "src = GET_X - src; SET_NBIT_X(src); SET_ZBIT_X(src); SET_CBIT_X(~src);"}, - {"cpy", GET_X, "src = GET_Y - src; SET_NBIT_X(src); SET_ZBIT_X(src); SET_CBIT_X(~src);"}, - {"dec", G2_GET, "src --; SET_NBIT_M(src); SET_ZBIT_M(src); "}, - {"dex", SPECIAL_CASE, "SET_X(GET_X -1); SET_NBIT_X(GET_X); SET_ZBIT_X(GET_X);"}, - {"dey", SPECIAL_CASE, "SET_Y(GET_Y -1); SET_NBIT_X(GET_Y); SET_ZBIT_X(GET_Y);"}, - {"eor", GET_M, "src = GET_A ^ src; SET_NBIT_M(src); SET_ZBIT_M(src);SET_A(src); "}, - {"inc", G2_GET, "src ++; SET_NBIT_M(src); SET_ZBIT_M(src); "}, - {"inx", SPECIAL_CASE, "SET_X(GET_X +1); SET_NBIT_X(GET_X); SET_ZBIT_X(GET_X);"}, - {"iny", SPECIAL_CASE, "SET_Y(GET_Y +1); SET_NBIT_X(GET_Y); SET_ZBIT_X(GET_Y);"}, - {"jmp", STANDARD_PC_GET, "SET_ONLY_PC(lval);"}, - {"jsr", STANDARD_PC_GET, "if (l) { PUSH8(GET_PBR_LOW);} PUSH16(GET_PC); SET_ONLY_PC(lval);\n"}, - {"lda", GET_M, "SET_A(src); SET_NBIT_M(GET_A); SET_ZBIT_M(GET_A);"}, - {"ldx", GET_X, "SET_X(src);SET_NBIT_X(GET_X); SET_ZBIT_X(GET_X);"}, - {"ldy", GET_X, "SET_Y(src);SET_NBIT_X(GET_Y); SET_ZBIT_X(GET_Y);"}, - {"lsr", G2_GET, - "SET_CBIT(src & 1); \ - SET_NBIT(0); \ - src = src >> 1; \ - SET_ZBIT_M(src);"}, - {"mvn", SPECIAL_CASE, - "{ int dst_bank; int src_bank; dst_bank = fetch8 ( GET_PC)<<16; INC_PC(1); src_bank = fetch8 (GET_PC)<<16; INC_PC(1);\ - do { store8 ( dst_bank + GET_X, fetch8 (src_bank + GET_Y)); SET_X(GET_X+1); SET_Y(GET_Y+1); SET_A((GET_A-1) & 0xffff); } while (GET_A != 0xffff);}"}, - {"mvp", SPECIAL_CASE, - "{ int dst_bank; int src_bank; dst_bank = fetch8 ( GET_PBRPC)<<16; INC_PC(1); src_bank = fetch8 (GET_PBRPC)<<16; INC_PC(1);\ - do { store8 ( dst_bank + GET_X, fetch8 (src_bank + GET_Y)); SET_X(GET_X-1); SET_Y(GET_Y-1); SET_A((GET_A-1) & 0xffff); } while (GET_A != 0xffff);}"}, - - {"nop", SPECIAL_CASE, ""}, -{"ora", GET_M, "SET_A(GET_A | src); SET_NBIT_M(GET_A); SET_ZBIT_M(GET_A);"}, - {"pea", PUSH_16, "src = fetch16(GET_PBRPC); INC_PC(2);"}, - {"pei", PUSH_16, "src = fetch16(fetch8(GET_PBRPC) + GET_D); INC_PC(1);"}, - {"per", PUSH_16, "src = fetch16(GET_PBRPC) + GET_PC+2; INC_PC(2);"}, - {"pha", PUSH_M, "src = GET_A;"}, - {"phb", PUSH_8, "src = GET_DBR_LOW;"}, - {"phd", PUSH_16, "src = GET_DPR;"}, - {"phk", PUSH_8, "src = GET_PBR_LOW;"}, - {"php", PUSH_8, "src = GET_P;"}, - {"phx", PUSH_X, "src = GET_X;"}, - {"phy", PUSH_X, "src = GET_Y;"}, - {"pla", POP_M, "SET_A( src); SET_NBIT_M(GET_A);SET_ZBIT_M(GET_A);"}, - {"plb", POP_8, "SET_DBR_LOW(src);SET_NBIT_8(src); SET_ZBIT_8(src);"}, - {"pld", POP_16, "SET_DPR(src);SET_NBIT_16(src); SET_ZBIT_16(src);"}, - {"plp", POP_8, "SET_P(src); RETHINK;"}, - {"plx", POP_X, "SET_X(src);SET_NBIT_X(src);SET_ZBIT_X(src);"}, - {"ply", POP_X, "SET_Y(src);SET_NBIT_X(src);SET_ZBIT_X(src);"}, - {"rep", COP_GET, "SET_P(GET_P & ~src); RETHINK;"}, - {"rol", G2_GET, "src = (src << 1) | GET_CBIT; SET_CBIT((src >> (GET_MBIT ? 7 : 15)) &1); SET_ZBIT_M(src);"}, - {"ror", G2_GET, "{ int t = src; src = (src>>1) | (GET_CBIT<<((GET_MBIT ? 8:16)-1));SET_NBIT_M(src);SET_ZBIT_M(src); SET_CBIT(t&1);}"}, - {"rti", SPECIAL_CASE, "{ int t; POP16(t); SET_ONLY_PC(t); if (GET_E==0) { POP8(t); SET_PBR(t);} POP8(t);SET_P(t);}"}, - {"rtl", SPECIAL_CASE, "{ int t; POP24(t); SET_PBRPC(t);}"}, - {"rts", SPECIAL_CASE, "{ int t; POP16(t); SET_ONLY_PC(t);}"}, - {"sbc", GET_M, - "{ int old_acc = GET_A & AMASK; int old_src = src & AMASK; src = old_acc - old_src - !GET_CBIT; SET_A(src);\ - SET_CBIT(!(src>>(GET_MBIT?8:16) &1)); SET_VBIT_M(old_src,old_acc, src); SET_ZBIT_M(src); SET_NBIT_M(src);}"}, - {"sec", SPECIAL_CASE, "SET_CBIT(1);"}, - {"sed", SPECIAL_CASE, "SET_DBIT(1);"}, - {"sei", SPECIAL_CASE, "SET_IBIT(1);"}, - {"sep", COP_GET, "SET_P(GET_P | src);RETHINK;"}, - {"sta", STORE_M, "src = GET_A;"}, - {"stp", SPECIAL_CASE, "abort();"}, - {"stx", STORE_X, "src = GET_X;"}, - {"sty", STORE_X, "src = GET_Y;"}, - {"stz", STORE_M, "src = 0;"}, -{"tax", SPECIAL_CASE, "SET_X(GET_A); SET_NBIT_X(GET_A);SET_ZBIT_X(GET_A);"}, -{"tay", SPECIAL_CASE, "SET_Y(GET_A); SET_NBIT_X(GET_A);SET_ZBIT_X(GET_A);"}, - {"tcd", SPECIAL_CASE, "SET_DPR(GET_A); SET_NBIT_X(GET_A); SET_ZBIT_X(GET_A);"}, - {"tcs", SPECIAL_CASE, "SET_S(GET_A);"}, - {"tdc", SPECIAL_CASE, "SET_A(GET_DPR); SET_NBIT_M(GET_A); SET_ZBIT_M(GET_A);"}, - {"trb", G2_GET, "SET_ZBIT_M(src & GET_A); src = src & ~GET_A; "}, - {"tsb", G2_GET, "SET_ZBIT_M(src & GET_A); src = src | GET_A;"}, -{"tsc", SPECIAL_CASE, "SET_A(GET_S); SET_NBIT_16(GET_A); SET_ZBIT_16(GET_A);"}, -{"tsx", SPECIAL_CASE, "SET_X(GET_S); SET_NBIT_X(GET_X); SET_ZBIT_X(GET_X);"}, -{"txa", SPECIAL_CASE, "SET_A(GET_X); SET_NBIT_M(GET_A); SET_ZBIT_M(GET_A);"}, - {"txs", SPECIAL_CASE, "SET_S(GET_X);"}, -{"txy", SPECIAL_CASE, "SET_Y(GET_X); SET_NBIT_X(GET_Y); SET_ZBIT_X(GET_Y);"}, -{"tya", SPECIAL_CASE, "SET_A(GET_Y); SET_NBIT_M(GET_A); SET_ZBIT_M(GET_A);"}, -{"tyx", SPECIAL_CASE, "SET_X(GET_Y); SET_NBIT_X(GET_X); SET_ZBIT_X(GET_X);"}, - {"wai", SPECIAL_CASE, "wai();INC_PC(-1);"}, - {"wdm", SPECIAL_CASE, "SET_A(wdm(GET_A, GET_X));"}, - {"xba", SPECIAL_CASE, - "if (GET_XBIT==0) { SET_A(((GET_A >> 8) & 0xff) | ((GET_A & 0xff)<<8));} else { int t = GET_A; SET_A(GET_B); SET_B(t);}; SET_NBIT_8(GET_A); SET_ZBIT_8(GET_A);"}, - {"xce", SPECIAL_CASE, "{ int t = GET_E; SET_E(GET_CBIT); SET_CBIT(GET_E);if (GET_E) { SET_MBIT(1); SET_XBIT(1);}}; goto top;"}, - 0}; - -struct ainfo alist[] = -{ - {"#a", "IMMTOA", "#$0", "M==0 ? 2:1", "M==0 ? %sR_W65_ABS16 : %sR_W65_ABS8", "lval = GET_PBRPC; INC_PC(GET_MBIT ? 1:2); ", 0}, - {"#c", "IMMCOP", "#$0", "1", "%sR_W65_ABS8", "lval = GET_PBRPC; INC_PC(1); ", 0}, - {"#i", "IMMTOI", "#$0", "X==0 ? 2:1", "X==0 ? %sR_W65_ABS16 : %sR_W65_ABS8", "lval = GET_PBRPC; INC_PC(GET_XBIT ? 1:2);", 0}, - {"A", "ACC", "a", "0", 0, "*FAIL**", 0}, - {"r", "PC_REL", "$0", "1", "%sR_W65_PCR8", "lval = GET_PBR_HIGH + (0xffff &(fetch8sext(GET_PBRPC) + GET_PC + 1)); INC_PC(1);", 0}, - {"rl", "PC_REL_LONG", "$0", "2", "%sR_W65_PCR16", "lval = GET_PBR_HIGH + (0xffff & (fetch16 (GET_PBRPC) + GET_PC + 2)); INC_PC(2);", 0}, - {"i", "IMPLIED", "", "0", "", 0}, - {"s", "STACK", "", "0", "", 0}, - {"d", "DIR", "<$0", "1", "%sR_W65_ABS8", "lval = fetch8(GET_PBRPC) + GET_D; INC_PC(1);", 1}, - {"d,x", "DIR_IDX_X", "<$0,x", "1", "%sR_W65_ABS8", "lval = fetch8(GET_PBRPC) + GET_X+ GET_D; INC_PC(1);", 1}, - {"d,y", "DIR_IDX_Y", "<$0,y", "1", "%sR_W65_ABS8", "lval = fetch8(GET_PBRPC) + GET_Y + GET_D; INC_PC(1);", 1}, - {"(d)", "DIR_IND", "(<$0)", "1", "%sR_W65_ABS8", "lval = GET_DBR_HIGH + (0xffff & fetch16(fetch8(GET_PBRPC) + GET_D));INC_PC(1);",1}, - {"(d,x)", "DIR_IDX_IND_X", "(<$0,x)", "1", "%sR_W65_ABS8", "lval = GET_DBR_HIGH + (0xffff & (fetch8 (GET_PBRPC) + GET_D + GET_X)) ; INC_PC(1);",1}, - {"(d),y", "DIR_IND_IDX_Y", "(<$0),y", "1", "%sR_W65_ABS8", "lval = fetch16(fetch8(GET_PBRPC) + GET_D) + GET_Y + GET_DBR_HIGH;INC_PC(1);",1}, - {"[d]", "DIR_IND_LONG", "[$0]", "1", "%sR_W65_ABS8", "lval = fetch24(GET_D + fetch8(GET_PBRPC));INC_PC(1);",1}, - - {"[d],y", "DIR_IND_IDX_Y_LONG", "[$0],y", "1", "%sR_W65_ABS8", "lval = fetch24(fetch8(GET_PBRPC) + GET_D) + GET_Y;INC_PC(1);",1}, - - {"a", "ABS", "!$0", "2", "%sR_W65_ABS16", "lval = fetch16(GET_PBRPC) + GET_DBR_HIGH; INC_PC(2) ; ",1}, - {"a,x", "ABS_IDX_X", "!$0,x", "2", "%sR_W65_ABS16", "lval = fetch16(GET_PBRPC) + GET_DBR_HIGH + GET_X; INC_PC(2); ",1}, - {"a,y", "ABS_IDX_Y", "!$0,y", "2", "%sR_W65_ABS16", "lval = fetch16(GET_PBRPC) + GET_DBR_HIGH + GET_Y; INC_PC(2); ", 1}, - {"al", "ABS_LONG", ">$0", "3", "%sR_W65_ABS24", "lval = fetch24(GET_PBRPC); INC_PC(3);\nl=1;\n", 1}, - {"[a]", "ABS_IND_LONG", "[>$0]", "2", "%sR_W65_ABS16", "lval = fetch24(fetch16(GET_PBRPC)); INC_PC(2);", 1}, - {"al,x", "ABS_LONG_IDX_X", ">$0,x", "3", "%sR_W65_ABS24", "lval = fetch24(GET_PBRPC) + GET_X; INC_PC(3);", 1}, - {"d,s", "STACK_REL", "$0,s", "1", "%sR_W65_ABS8", "lval = fetch8(GET_PBRPC) + GET_S; INC_PC(1);", 0}, - {"(d,s),y", "STACK_REL_INDX_IDX", "($0,s),y", "1", "%sR_W65_ABS8", "lval = fetch16(fetch8(GET_PBRPC) + GET_S) + GET_DBR_HIGH + GET_Y;INC_PC(1);",0}, - {"(a)", "ABS_IND", "($0)", "2", "%sR_W65_ABS16", "lval = fetch16(GET_PBRPC) + GET_DBR_HIGH; INC_PC(2);", 1}, - {"(a,x)", "ABS_IND_IDX", "($0,x)", "2", "%sR_W65_ABS16", - "lval = fetch16((0xffff & (fetch16(GET_PBRPC) + GET_X )) + GET_PBR_HIGH) + GET_PBR_HIGH;INC_PC(2);",1}, - {"xyz", "BLOCK_MOVE", "", "2", "", 0}, - 0}; - - -struct opinfo optable[257] = -{ - {0x00, "brk", "s"}, - {0x01, "ora", "(d,x)"}, - {0x02, "cop", "#c"}, - {0x03, "ora", "d,s"}, - {0x04, "tsb", "d"}, - {0x05, "ora", "d"}, - {0x06, "asl", "d"}, - {0x07, "ora", "[d]"}, - {0x08, "php", "s"}, - {0x09, "ora", "#a"}, - {0x0a, "asl", "A"}, - {0x0b, "phd", "s"}, - {0x0c, "tsb", "a"}, - {0x0d, "ora", "a"}, - {0x0e, "asl", "a"}, - {0x0f, "ora", "al"}, - {0x10, "bpl", "r"}, - {0x11, "ora", "(d),y"}, - {0x12, "ora", "(d)"}, - {0x13, "ora", "(d,s),y"}, - {0x14, "trb", "d"}, - {0x15, "ora", "d,x"}, - {0x16, "asl", "d,x"}, - {0x17, "ora", "[d],y"}, - {0x18, "clc", "i"}, - {0x19, "ora", "a,y"}, - {0x1a, "inc", "A"}, - {0x1b, "tcs", "i"}, - {0x1c, "trb", "a"}, - {0x1d, "ora", "a,x"}, - {0x1e, "asl", "a,x"}, - {0x1f, "ora", "al,x"}, - {0x20, "jsr", "a"}, - {0x21, "and", "(d,x)"}, - {0x22, "jsr", "al"}, - {0x23, "and", "d,s"}, - {0x24, "bit", "(d)"}, - {0x25, "and", "d"}, - {0x26, "rol", "d"}, - {0x27, "and", "[d]"}, - {0x28, "plp", "s"}, - {0x29, "and", "#a"}, - {0x2a, "rol", "A"}, - {0x2b, "pld", "s"}, - {0x2c, "bit", "a"}, - {0x2d, "and", "a"}, - {0x2e, "rol", "a"}, - {0x2f, "and", "al"}, - {0x30, "bmi", "r"}, - {0x31, "and", "(d),y"}, - {0x32, "and", "(d)"}, - {0x33, "and", "(d,s),y"}, - {0x34, "bit", "(d,x)"}, - {0x35, "and", "d,x"}, - {0x36, "rol", "d,x"}, - {0x37, "and", "[d],y"}, - {0x38, "sec", "i"}, - {0x39, "and", "a,y"}, - {0x3a, "dec", "A"}, - {0x3b, "tsc", "i"}, - {0x3c, "bit", "a,x"}, - {0x3d, "and", "a,x"}, - {0x3e, "rol", "a,x"}, - {0x3f, "and", "al,x"}, - {0x40, "rti", "s"}, - {0x41, "eor", "(d,x)"}, - {0x42, "wdm", "i"}, - {0x43, "eor", "d,s"}, - {0x44, "mvp", "xyz"}, - {0x45, "eor", "d"}, - {0x46, "lsr", "d"}, - {0x47, "eor", "[d]"}, - {0x48, "pha", "s"}, - {0x49, "eor", "#a"}, - {0x4a, "lsr", "A"}, - {0x4b, "phk", "s"}, - {0x4c, "jmp", "a"}, - {0x4d, "eor", "a"}, - {0x4e, "lsr", "a"}, - {0x4f, "eor", "al"}, - {0x50, "bvc", "r"}, - {0x51, "eor", "(d),y"}, - {0x52, "eor", "(d)"}, - {0x53, "eor", "(d,s),y"}, - {0x54, "mvn", "xyz"}, - {0x55, "eor", "d,x"}, - {0x56, "lsr", "d,x"}, - {0x57, "eor", "[d],y"}, - {0x58, "cli", "i"}, - {0x59, "eor", "a,y"}, - {0x5a, "phy", "s"}, - {0x5b, "tcd", "i"}, - {0x5c, "jmp", "al"}, - {0x5d, "eor", "a,x"}, - {0x5e, "lsr", "a,x"}, - {0x5f, "eor", "al,x"}, - {0x60, "rts", "s"}, - {0x61, "adc", "(d,x)"}, - {0x62, "per", "rl"}, - {0x63, "adc", "d,s"}, - {0x64, "stz", "d"}, - {0x65, "adc", "d"}, - {0x66, "ror", "d"}, - {0x67, "adc", "[d]"}, - {0x68, "pla", "s"}, - {0x69, "adc", "#a"}, - {0x6a, "ror", "A"}, - {0x6b, "rtl", "s"}, - {0x6c, "jmp", "(a)"}, - {0x6d, "adc", "a"}, - {0x6e, "ror", "a"}, - {0x6f, "adc", "al"}, - {0x70, "bvs", "r"}, - {0x71, "adc", "(d),y"}, - {0x72, "adc", "(d)"}, - {0x73, "adc", "(d,s),y"}, - {0x74, "stz", "d,x"}, - {0x75, "adc", "d,x"}, - {0x76, "ror", "d,x"}, - {0x77, "adc", "[d],y"}, - {0x78, "sei", "i"}, - {0x79, "adc", "a,y"}, - {0x7a, "ply", "s"}, - {0x7b, "tdc", "i"}, - {0x7c, "jmp", "(a,x)"}, - {0x7d, "adc", "a,x"}, - {0x7e, "ror", "a,x"}, - {0x7f, "adc", "al,x"}, - {0x80, "bra", "r"}, - {0x81, "sta", "(d,x)"}, - {0x82, "brl", "rl"}, - {0x83, "sta", "d,s"}, - {0x84, "sty", "d"}, - {0x85, "sta", "d"}, - {0x86, "stx", "d"}, - {0x87, "sta", "[d]"}, - {0x88, "dey", "i"}, - {0x89, "bit", "#a"}, - {0x8a, "txa", "i"}, - {0x8b, "phb", "s"}, - {0x8c, "sty", "a"}, - {0x8d, "sta", "a"}, - {0x8e, "stx", "a"}, - {0x8f, "sta", "al"}, - {0x90, "bcc", "r"}, - {0x91, "sta", "(d),y"}, - {0x92, "sta", "(d)"}, - {0x93, "sta", "(d,s),y"}, - {0x94, "sty", "d,x"}, - {0x95, "sta", "d,x"}, - {0x96, "stx", "d,x"}, - {0x97, "sta", "[d],y"}, - {0x98, "tya", "i"}, - {0x99, "sta", "a,y"}, - {0x9a, "txs", "i"}, - {0x9b, "txy", "i"}, - {0x9c, "stz", "a"}, - {0x9d, "sta", "a,x"}, - {0x9e, "stz", "a,x"}, - {0x9f, "sta", "al,x"}, - {0xa0, "ldy", "#i"}, - {0xa1, "lda", "(d,x)"}, - {0xa2, "ldx", "#i"}, - {0xa3, "lda", "d,s"}, - {0xa4, "ldy", "d"}, - {0xa5, "lda", "d"}, - {0xa6, "ldx", "d"}, - {0xa7, "lda", "[d]"}, - {0xa8, "tay", "i"}, - {0xa9, "lda", "#a"}, - {0xaa, "tax", "i"}, - {0xab, "plb", "s"}, - {0xac, "ldy", "a"}, - {0xad, "lda", "a"}, - {0xae, "ldx", "a"}, - {0xaf, "lda", "al"}, - {0xb0, "bcs", "r"}, - {0xb1, "lda", "(d),y"}, - {0xb2, "lda", "(d)"}, - {0xb3, "lda", "(d,s),y"}, - {0xb4, "ldy", "d,x"}, - {0xb5, "lda", "d,x"}, - {0xb6, "ldx", "d,y"}, - {0xb7, "lda", "[d],y"}, - {0xb8, "clv", "i"}, - {0xb9, "lda", "a,y"}, - {0xba, "tsx", "i"}, - {0xbb, "tyx", "i"}, - {0xbc, "ldy", "a,x"}, - {0xbd, "lda", "a,x"}, - {0xbe, "ldx", "a,y"}, - {0xbf, "lda", "al,x"}, - {0xc0, "cpy", "#i"}, - {0xc1, "cmp", "(d,x)"}, - {0xc2, "rep", "#c"}, - {0xc3, "cmp", "d,s"}, - {0xc4, "cpy", "d"}, - {0xc5, "cmp", "d"}, - {0xc6, "dec", "d"}, - {0xc7, "cmp", "[d]"}, - {0xc8, "iny", "i"}, - {0xc9, "cmp", "#a"}, - {0xca, "dex", "i"}, - {0xcb, "wai", "i"}, - {0xcc, "cpy", "a"}, - {0xcd, "cmp", "a"}, - {0xce, "dec", "a"}, - {0xcf, "cmp", "al"}, - {0xd0, "bne", "r"}, - {0xd1, "cmp", "(d),y"}, - {0xd2, "cmp", "(d)"}, - {0xd3, "cmp", "(d,s),y"}, - {0xd4, "pei", "d"}, - {0xd5, "cmp", "d,x"}, - {0xd6, "dec", "d,x"}, - {0xd7, "cmp", "[d],y"}, - {0xd8, "cld", "i"}, - {0xd9, "cmp", "a,y"}, - {0xda, "phx", "s"}, - {0xdb, "stp", "i"}, - {0xdc, "jmp", "[a]"}, - {0xdd, "cmp", "a,x"}, - {0xde, "dec", "a,x"}, - {0xdf, "cmp", "al,x"}, - {0xe0, "cpx", "#i"}, - {0xe1, "sbc", "(d,x)"}, - {0xe2, "sep", "#c"}, - {0xe3, "sbc", "d,s"}, - {0xe4, "cpx", "d"}, - {0xe5, "sbc", "d"}, - {0xe6, "inc", "d"}, - {0xe7, "sbc", "[d]"}, - {0xe8, "inx", "i"}, - {0xe9, "sbc", "#a"}, - {0xea, "nop", "i"}, - {0xeb, "xba", "i"}, - {0xec, "cpx", "a"}, - {0xed, "sbc", "a"}, - {0xee, "inc", "a"}, - {0xef, "sbc", "al"}, - {0xf0, "beq", "r"}, - {0xf1, "sbc", "(d),y"}, - {0xf2, "sbc", "(d)"}, - {0xf3, "sbc", "(d,s),y"}, - {0xf4, "pea", "a"}, - {0xf5, "sbc", "d,x"}, - {0xf6, "inc", "d,x"}, - {0xf7, "sbc", "[d],y"}, - {0xf8, "sed", "i"}, - {0xf9, "sbc", "a,y"}, - {0xfa, "plx", "s"}, - {0xfb, "xce", "i"}, - {0xfc, "jsr", "(a,x)"}, - {0xfd, "sbc", "a,x"}, - {0xfe, "inc", "a,x"}, - {0xff, "sbc", "al,x"}, - 0}; - - -int pfunc(a,b) -struct opinfo *a; -struct opinfo *b; -{ -return strcmp(a->mode, b->mode); - -} -static void -dump_table () -{ - int x; - int y; - printf (" |"); - for (x = 0; x < 16; x++) - { - printf (" %x |", x); - } - printf ("\n"); - printf (" |"); - for (x = 0; x < 16; x++) - { - printf ("-------|"); - } - printf ("\n"); - - for (y = 0; y < 16; y++) - { - printf ("%x |", y); - for (x = 0; x < 16; x++) - { - struct opinfo *p = &optable[y * 16 + x]; - if (p->opcode) - { - printf ("%-7s", p->opcode); - } - else - { - printf ("*******"); - } - printf ("|"); - } - printf ("\n"); - printf (" |"); - - for (x = 0; x < 16; x++) - { - struct opinfo *p = &optable[y * 16 + x]; - if (p->mode) - { - printf ("%-7s", p->mode); - } - else - { - printf ("*******"); - } - printf ("|"); - } - printf ("\n"); - printf (" |"); - for (x = 0; x < 16; x++) - { - printf ("-------|"); - } - - - printf ("\n"); - } -} - -dt () -{ -#if 0 - int i; - for (i = 0; i < 256; i++) - { - struct opinfo *p = &optable[i]; - printf ("/* %02x */ ", i); - if (p->opcode) - printf ("{\"%s\",\"%s\",%d,%d},", p->opcode->name, p->addr->name); - - printf ("\n"); - } -#endif - -} -static -void -init_table () -{ - int i; - for (i = 0; i < 256; i++) - { - struct opinfo *p = optable + i; - struct ainfo *a; - struct oinfo *o; - for (a = alist; a->name; a++) - { - if (strcmp (a->name, p->mode) == 0) - { - p->ai = a; - goto done; - } - } - printf ("bad %x\n", i); - done:; - for (o = olist; o->name; o++) - { - if (strcmp (o->name, p->opcode) == 0) - { - p->oi = o; - goto doneo; - } - } - printf ("bad %x\n", i); - doneo:; - - } -} - -/* Dump the opcodes sorted by name */ -static -void -assembler_table (as) -{ - int i; - struct oinfo *o; - struct ainfo *a; - int n = 0; - /* Step through the sorted list of opnames */ - printf (" /* WDC 65816 Assembler opcode table */\n"); - printf (" /* (generated by the program sim/w65/gencode -a) */\n"); - - for (a = alist; a->name; a++) - { - printf ("#define ADDR_%-20s%d\t /* %-7s */\n", a->enumname, ++n, a->name); - } - - printf ("struct opinfo {\n\tint val;\n\tint code;\n\tchar *name;\n\tint amode;\n};\n"); - - printf ("struct opinfo optable[257]={\n"); - if (as) - { - i = 1; - for (o = olist; o->name; o++) - { - printf ("#define O_%s %d\n", o->name, i++); - } - - qsort (optable, 256, sizeof (struct opinfo), pfunc); - - printf ("#ifdef DEFINE_TABLE\n"); - for (o = olist; o->name; o++) - { - - for (i = 0; i < 256; i++) - { - struct opinfo *p = optable + i; - - if (p->oi == o) - { - /* This opcode is of the right name */ - printf ("\t{0x%02X,\tO_%s,\t\"%s\",\tADDR_%s},\n", p->code, p->oi->name, p->oi->name, p->ai->enumname); - } - } - } - } - else - { - for (i = 0; i < 256; i++) - { - struct opinfo *p = optable + i; - printf ("\t{0x%02X,\t\"%s\",\tADDR_%s},\n", i, p->oi->name, p->ai->enumname); - } - } - - printf ("0};\n"); - printf ("#endif\n"); - - - /* Generate the operand disassembly case list */ - - printf ("#define DISASM()\\\n"); - { - struct ainfo *a; - for (a = alist; a->name; a++) - { - printf (" case ADDR_%s:\\\n\t", a->enumname); - if (strcmp (a->enumname, "BLOCK_MOVE") == 0) - { - printf ("args[0] = (asR_W65_ABS16 >>8) &0xff;\\\n"); - printf ("\targs[1] = ( asR_W65_ABS16 & 0xff);\\\n"); - printf ("\tprint_operand (0,\"\t$0,$1\",args);\\\n"); - } - else if (a->reloc0 == 0) - { - printf ("print_operand (0, \"\t%s\", 0);\\\n", a->disasmstring ); - } - else if (strlen (a->reloc0)) - { - printf ("args[0] = "); - printf (a->reloc0, "as","as"); - printf (";\\\n"); - printf ("\tprint_operand (%d, \"\t%s\", args);\\\n", - a->regflag, - a->disasmstring); - } - - printf ("\tsize += %s;\\\n\tbreak;\\\n", a->sizer); - } - } - - printf ("\n"); - - /* Generate the operand size and type case list */ - - printf ("#define GETINFO(size,type,pcrel)\\\n"); - { - struct ainfo *a; - for (a = alist; a->name; a++) - { - printf ("\tcase ADDR_%s: ", a->enumname); - printf ("size = %s;type=", a->sizer); - if (a->reloc0 && strlen (a->reloc0)) - { - printf (a->reloc0, "", ""); - } - else - printf ("-1"); - printf (";pcrel=%d;", a->name[0] == 'P'); - printf ("break;\\\n"); - } - } - printf ("\n"); -} - - -/* Write out examples of each opcode */ -static -void -test_table () -{ - struct opinfo *o; - for (o = optable; o->opcode; o++) - { - printf ("\t%s\t", o->opcode); - printf (o->ai->disasmstring, 0x6543210, 0x6543210); - printf ("\n"); - } - -} - -static void -op_table () -{ - struct opinfo *o; - int i = 0; - /* Write four optables, M=0,1 X=0,1 */ - - for (o = optable; o->opcode; o++) - { - printf ("{0x%02x, \"%s\", \"%s\"\t},\n", - i++, - o->opcode, - o->mode); - } -} - -int worked_out_lval; -static void -genfetch (amode, size) - struct ainfo *amode; - int size; -{ - if (amode->howlval) - { - if (strcmp (amode->name, "A") == 0) - { - /* Can't get the lval for the accumulator */ - printf ("src = GET_A;\n"); - } - else - { - printf ("%s\n", amode->howlval); -worked_out_lval = 1; - if (size == 0) - { - printf ("src = fetch16 (lval);\n"); - } - else - { - printf ("src = fetch8 (lval);\n"); - } - } - } - -} - -static void -genstore (amode, size) - struct ainfo *amode; - int size; -{ - if (amode->howlval) - { - if (strcmp (amode->name, "A") == 0) - { - /* Can't get the lval for the accumulator */ - printf ("SET_A (src);\n"); - } - else - { - if (!worked_out_lval) - printf ("%s\n", amode->howlval); - if (size == 0) - { - printf ("store16(lval, src);\n"); - } - else - { - printf ("store8(lval, src);\n"); - } - } - } -} -/* Generate the code to simulate the instructions */ -static void -code_table () -{ - struct opinfo *o; - int x, m; - printf("#include \"interp.h\"\n"); - - for (x = 0; x < 2; x++) { - for (m = 0; m < 2; m++) { - printf("ifunc_X%d_M%d() {\n",x,m); - printf("#undef GET_MBIT\n"); - printf("#undef GET_XBIT\n"); - printf("#define GET_XBIT %d\n", x); - printf("#define GET_MBIT %d\n", m); - printf("STARTFUNC();\n"); - printf("do { register opcode = fetch8(GET_PBRPC); insts++; INC_PC(1);\n"); - printf ("switch (opcode) {\n"); - for (o = optable; o->opcode; o++) - { - printf (" /* %s %s */\n", o->opcode, o->ai->name); - printf ("case 0x%02x:\n", o->code); - printf ("{\n"); - printf ("int l ;\n"); - printf ("register int src;\n"); - printf ("register int lval;\n"); -worked_out_lval = 0; - switch (o->oi->howsrc) - { - case POP_M: - if (m == 0) - printf ("POP16 (src);"); - else - printf ("POP8(src);"); - break; - case POP_X: - if (x == 0) - printf ("POP16 (src);"); - else - printf ("POP8 (src);"); - break; - case POP_8: - printf ("POP8 (src);"); - break; - case POP_16: - printf ("POP16 (src);"); - break; - - case STANDARD_PC_GET: - printf ("%s\n", o->ai->howlval); - break; - - case GET_M: - genfetch (o->ai, m); - break; - case G2_GET: - genfetch (o->ai, m); - break; - case GET_X: - genfetch (o->ai, x); - break; - case BRANCH: - printf ("%s", o->ai->howlval); - break; - case COP_GET: - genfetch(o->ai,1); - break; - case STORE_X: - case STORE_M: - ; - } - - switch (o->oi->howsrc) - { - case BRANCH: - printf ("if (%s) { SET_ONLY_PC(lval);} ", o->oi->howto); - break; - case SPECIAL_CASE: - case GET_M: - case GET_X: - case STORE_X: - case STANDARD_PC_GET: - case G2_GET: - case PUSH_16: - case PUSH_8: - case PUSH_M: - case PUSH_X: - case POP_16: - case POP_8: - case POP_M: - case POP_X: - case COP_GET: - case STORE_M: - printf ("%s", o->oi->howto); - break; - } - - switch (o->oi->howsrc) - { - case STORE_M: - genstore (o->ai, m); - break; - case STORE_X: - genstore (o->ai, x); - break; - case PUSH_M: - if (m == 0) - printf ("PUSH16 (src);"); - else - printf ("PUSH8(src);"); - break; - case PUSH_X: - if (x == 0) - printf ("PUSH16 (src);"); - else - printf ("PUSH8 (src);"); - break; - case PUSH_8: - printf ("PUSH8 (src);"); - break; - case PUSH_16: - printf ("PUSH16 (src);"); - break; - case G2_GET: - genstore (o->ai, x, m); - break; - } - printf ("}\n"); - - printf ("break;\n"); - } - printf ("}\n}\n"); - printf("while (!saved_state.exception);\n"); - printf("#undef GET_MBIT\n"); - printf("#undef GET_XBIT\n"); - printf("#define GET_MBIT (the_mbit)\n"); - printf("#define GET_XBIT (the_xbit)\n"); - - printf("ENDFUNC();\n"); - printf("}"); - } - } -} - -int -main (ac, av) - char **av; -{ - init_table (); - - if (ac > 1) - { - if (av[1][1] == 'a') - { - assembler_table (1); - } - if (av[1][1] == 't') - { - test_table (); - } - if (av[1][1] == 'o') - { - op_table (); - } - if (av[1][1] == 'c') - { - code_table (); - } - } - else - dump_table (); - - dt (); - - return 0; -} |