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opcodes.c
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opcodes.c
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/*
¬°¤*,¸¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸
¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯
__/¯\____ ___/\__ _/\__ _/\_ _/\__ _/\___ ___/\__ __/\_ _/\__
\_ ____/_> ____ \_/ _ \_ \ < /_ \_/ _>> ____ \_ > \_/ _ \_
_> ___/ ¯>__> <<__// __ _/ |> ></ _/> </ ¯ \\__> <<__// /\ // __ _/
_> \7 <__/:. \__/:. \> \_/ L/ _____/. 7> .\_/:. \__/ <_/ </:. \> \_
|:::::::::::::::::::::::/:::::::::::::>::::::::/::::::::::::::::::::::::/:::::|
|¯¯\::::/\:/¯\::::/¯¯¯¯<::::/\::/¯¯\:/¯¯¯¯¯¯\::\::/¯¯\::::/¯¯\::::/¯¯¯¯<::::/¯|
|__ |¯¯| T _ |¯¯¯| ___ |¯¯| |¯| _ T ______ |¯¯¯¯| _ |¯¯¯| _ |¯¯¯| ___ |¯¯| _|
\|__|/\|/ \|___|/ \|__|/\|_|/ \|/ \| |/ \|___|/ \|___|/dNo\|__|/
¬°¤*,¸¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸
¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯
This file is part of Etripator,
copyright (c) 2009--2023 Vincent Cruz.
Etripator 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 3 of the License, or
(at your option) any later version.
Etripator 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 Etripator. If not, see <http://www.gnu.org/licenses/>.
¬°¤*,¸¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸
¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯
*/
#include "opcodes.h"
#define PCE_TYPE_COUNT 23
#define PCE_ARG_COUNT 7
/* Opcode output. */
static char* pce_opstring[PCE_TYPE_COUNT][PCE_ARG_COUNT] = {
{ NULL, NULL, NULL, NULL, NULL, NULL, NULL },
{ NULL, NULL, NULL, NULL, NULL, NULL, NULL },
{ "#$%02x", NULL, NULL, NULL, NULL, NULL, NULL },
{ "#$%02x, ", "<$%02x", NULL, NULL, NULL, NULL, NULL },
{ "#$%02x, ", "<$%02x, X", NULL, NULL, NULL, NULL, NULL },
{ "#$%02x, ", "$%02x", "%02x", NULL, NULL, NULL, NULL },
{ "#$%02x, ", "$%02x", "%02x, X", NULL, NULL, NULL, NULL },
{ "<$%02x", NULL, NULL, NULL, NULL, NULL, NULL },
{ "<$%02x, X", NULL, NULL, NULL, NULL, NULL, NULL },
{ "<$%02x, Y", NULL, NULL, NULL, NULL, NULL, NULL },
{ "[$%02x]", NULL, NULL, NULL, NULL, NULL, NULL },
{ "[$%02x, X]", NULL, NULL, NULL, NULL, NULL, NULL },
{ "[$%02x], Y", NULL, NULL, NULL, NULL, NULL, NULL },
{ "<$%02x, ", "$%02x", "%02x", NULL, NULL, NULL, NULL },
{ "$%02x", "%02x", NULL, NULL, NULL, NULL, NULL },
{ "[$%02x", "%02x]", NULL, NULL, NULL, NULL, NULL },
{ "$%02x", "%02x, X", NULL, NULL, NULL, NULL, NULL },
{ "$%02x", "%02x, Y", NULL, NULL, NULL, NULL, NULL },
{ "$%02x", "%02x, ", "$%02x", "%02x, ", "$%02x", "%02x", NULL },
{ "l%02x", "%02x", "_%02x", NULL, NULL, NULL, NULL },
{ "<$%02x, ", "l%02x", "%02x", "_%02x", NULL, NULL, NULL },
{ "[$%02x", "%02x, X]", NULL, NULL, NULL, NULL, NULL },
{ "$%02x", NULL, NULL, NULL, NULL, NULL, NULL }
};
/* PC engine opcodes */
static opcode_t pce_opcode[256] = {
/* 00 */ { "brk ", 1 , 0 }, /* BRK */
/* 01 */ { "ora ", 2 , 11 }, /* ORA (ZZ, X) */
/* 02 */ { "sxy ", 1 , 0 }, /* SXY */
/* 03 */ { "st0 ", 2 , 2 }, /* STO #nn */
/* 04 */ { "tsb ", 2 , 7 }, /* TSB ZZ */
/* O5 */ { "ora ", 2 , 7 }, /* ORA ZZ */
/* 06 */ { "asl ", 2 , 7 }, /* ASL ZZ */
/* 07 */ { "rmb0", 2 , 7 }, /* RMB0 ZZ */
/* 08 */ { "php ", 1 , 0 }, /* PHP */
/* O9 */ { "ora ", 2 , 2 }, /* ORA #nn */
/* 0A */ { "asl ", 1 , 1 }, /* ASL A */
/* 0B */ { ".db ", 1 , 22 }, /* UNUSED */
/* 0C */ { "tsb ", 3 , 14 }, /* TRB hhll */
/* 0D */ { "ora ", 3 , 14 }, /* ORA hhll */
/* 0E */ { "asl ", 3 , 14 }, /* ASL hhll */
/* 0F */ { "bbr0", 3 , 20 }, /* BBR0 ZZ, lhhll */
/* 10 */ { "bpl ", 2 , 19 }, /* BPL lhhll */
/* 11 */ { "ora ", 2 , 12 }, /* ORA (ZZ), Y */
/* 12 */ { "ora ", 2 , 10 }, /* ORA (ZZ) */
/* 13 */ { "st1 ", 2 , 2 }, /* ST1 #nn */
/* 14 */ { "trb ", 2 , 7 }, /* TRB ZZ */
/* 15 */ { "ora ", 2 , 8 }, /* ORA ZZ, X */
/* 16 */ { "asl ", 2 , 8 }, /* ASL ZZ, X */
/* 17 */ { "rmb1", 2 , 7 }, /* RMB1 ZZ */
/* 18 */ { "clc ", 1 , 0 }, /* CLC */
/* 19 */ { "ora ", 3 , 17 }, /* ORA hhll, Y */
/* 1A */ { "inc ", 1 , 1 }, /* INC A */
/* 1B */ { ".db ", 1 , 22 }, /* UNUSED */
/* 1C */ { "trb ", 3 , 14 }, /* TRB hhll */
/* 1D */ { "ora ", 3 , 16 }, /* ORA hhll, X */
/* 1E */ { "asl ", 3 , 16 }, /* ASL hhll, X */
/* 1F */ { "bbr1", 3 , 20 }, /* BBR1 ZZ, lhhll */
/* 20 */ { "jsr ", 3 , 19 }, /* JSR lhhll */
/* 21 */ { "and ", 2 , 11 }, /* AND (ZZ, X) */
/* 22 */ { "sax ", 1 , 0 }, /* SAX */
/* 23 */ { "st2 ", 2 , 2 }, /* ST2 #nn */
/* 24 */ { "bit ", 2 , 7 }, /* BIT ZZ */
/* 25 */ { "and ", 2 , 7 }, /* AND ZZ */
/* 26 */ { "rol ", 2 , 7 }, /* ROL ZZ */
/* 27 */ { "rmb2", 2 , 7 }, /* RMB2 ZZ */
/* 28 */ { "plp ", 1 , 0 }, /* PLP */
/* 29 */ { "and ", 2 , 2 }, /* AND #nn */
/* 2A */ { "rol ", 1 , 1 }, /* ROL A */
/* 2B */ { ".db ", 1 , 22 }, /* UNUSED */
/* 2C */ { "bit ", 3 , 14 }, /* BIT hhll */
/* 2D */ { "and ", 3 , 14 }, /* AND hhll */
/* 2E */ { "rol ", 3 , 14 }, /* ROL hhll */
/* 2F */ { "bbr2", 3 , 20 }, /* BBR2 ZZ, lhhll */
/* 30 */ { "bmi ", 2 , 19 }, /* BMI lhhll */
/* 31 */ { "and ", 2 , 12 }, /* AND (ZZ), Y */
/* 32 */ { "and ", 2 , 10 }, /* AND (ZZ) */
/* 33 */ { ".db ", 1 , 22 }, /* UNUSED */
/* 34 */ { "bit ", 2 , 8 }, /* BIT ZZ, X */
/* 35 */ { "and ", 2 , 8 }, /* AND ZZ, X */
/* 36 */ { "rol ", 2 , 7 }, /* ROL ZZ */
/* 37 */ { "rmb3", 2 , 7 }, /* RMB3 ZZ */
/* 38 */ { "sec ", 1 , 0 }, /* SEC */
/* 39 */ { "and ", 3 , 17 }, /* AND hhll, Y */
/* 3A */ { "dec ", 1 , 1 }, /* DEC A */
/* 3B */ { ".db ", 1 , 22 }, /* UNUSED */
/* 3C */ { "bit ", 3 , 16 }, /* BIT hhll, X */
/* 3D */ { "and ", 3 , 16 }, /* AND hhll, X */
/* 3E */ { "rol ", 3 , 16 }, /* ROL hhll, X */
/* 3F */ { "bbr3", 3 , 20 }, /* BBR3 ZZ, lhhll */
/* 40 */ { "rti ", 1 , 0 }, /* RTI */
/* 41 */ { "eor ", 2 , 11 }, /* EOR (ZZ, X) */
/* 42 */ { "say ", 1 , 0 }, /* SAY */
/* 43 */ { "tma ", 2 , 2 }, /* TMA #nn */
/* 44 */ { "bsr ", 2 , 19 }, /* BSR lhhll */
/* 45 */ { "eor ", 2 , 7 }, /* EOR ZZ */
/* 46 */ { "lsr ", 2 , 7 }, /* LSR ZZ */
/* 47 */ { "rmb4", 2 , 7 }, /* RMB4 ZZ */
/* 48 */ { "pha ", 1 , 0 }, /* PHA */
/* 49 */ { "eor ", 2 , 2 }, /* EOR #nn */
/* 4A */ { "lsr ", 1 , 1 }, /* LSR A */
/* 4B */ { ".db ", 1 , 22 }, /* UNUSED */
/* 4C */ { "jmp ", 3 , 19 }, /* JMP lhhll */
/* 4D */ { "eor ", 3 , 14 }, /* EOR hhll */
/* 4E */ { "lsr ", 3 , 14 }, /* LSR hhll */
/* 4F */ { "bbr4", 3 , 20 }, /* BBR4 ZZ, lhhll */
/* 50 */ { "bvc ", 2 , 19 }, /* BVC lhhll */
/* 51 */ { "eor ", 2 , 12 }, /* EOR (ZZ),Y */
/* 52 */ { "eor ", 2 , 10 }, /* EOR (ZZ) */
/* 53 */ { "tam ", 2 , 2 }, /* TAM #nn */
/* 54 */ { "csl ", 1 , 0 }, /* CSL */
/* 55 */ { "eor ", 2 , 8 }, /* EOR ZZ, X */
/* 56 */ { "lsr ", 2 , 8 }, /* LSR ZZ, X */
/* 57 */ { "rmb5", 2 , 7 }, /* RMB5 ZZ */
/* 58 */ { "cli ", 1 , 0 }, /* CLI */
/* 59 */ { "eor ", 3 , 17 }, /* EOR hhll, Y */
/* 5A */ { "phy ", 1 , 0 }, /* PHY */
/* 5B */ { ".db ", 1 , 22 }, /* UNUSED */
/* 5C */ { ".db ", 1 , 22 }, /* UNUSED */
/* 5D */ { "eor ", 3 , 16 }, /* EOR hhll, X */
/* 5E */ { "lsr ", 3 , 16 }, /* LSR hhll, X */
/* 5F */ { "bbr5", 3 , 20 }, /* BBR5 ZZ, lhhll */
/* 60 */ { "rts ", 1 , 0 }, /* RTS */
/* 61 */ { "adc ", 2 , 11 }, /* ADC (ZZ, X) */
/* 62 */ { "cla ", 1 , 0 }, /* CLA */
/* 63 */ { ".db ", 1 , 22 }, /* UNUSED */
/* 64 */ { "stz ", 2 , 7 }, /* STZ ZZ */
/* 65 */ { "adc ", 2 , 7 }, /* ADC ZZ */
/* 66 */ { "ror ", 2 , 7 }, /* ROR ZZ */
/* 67 */ { "rmb6", 2 , 7 }, /* RMB6 ZZ */
/* 68 */ { "pla ", 1 , 0 }, /* PLA */
/* 69 */ { "adc ", 2 , 2 }, /* ADC #nn */
/* 6A */ { "ror ", 1 , 1 }, /* ROR A */
/* 6B */ { ".db ", 1 , 22 }, /* UNUSED */
/* 6C */ { "jmp ", 3 , 15 }, /* JMP (hhll) */
/* 6D */ { "adc ", 3 , 14 }, /* ADC hhll */
/* 6E */ { "ror ", 3 , 14 }, /* ROR hhll */
/* 6F */ { "bbr6", 3 , 20 }, /* BBR6 ZZ, lhhll */
/* 70 */ { "bvs ", 2 , 19 }, /* BVS lhhll */
/* 71 */ { "adc ", 2 , 12 }, /* ADC (ZZ), Y */
/* 72 */ { "adc ", 2 , 10 }, /* ADC (ZZ) */
/* 73 */ { "tii ", 7 , 18 }, /* TII shsl,dhdl,lhll */
/* 74 */ { "stz ", 2 , 8 }, /* STZ ZZ, X */
/* 75 */ { "adc ", 2 , 8 }, /* ADC ZZ, X */
/* 76 */ { "ror ", 2 , 8 }, /* ROR ZZ, X */
/* 77 */ { "rmb7", 2 , 7 }, /* RMB7 ZZ */
/* 78 */ { "sei ", 1 , 0 }, /* SEI */
/* 79 */ { "adc ", 3 , 17 }, /* ADC hhll, Y */
/* 7A */ { "ply ", 1 , 0 }, /* PLY */
/* 7B */ { ".db ", 1 , 22 }, /* UNUSED */
/* 7C */ { "jmp ", 3 , 21 }, /* JMP (hhll, X) */
/* 7D */ { "adc ", 3 , 16 }, /* ADC hhll, X */
/* 7E */ { "ror ", 3 , 16 }, /* ROR hhll, X */
/* 7F */ { "bbr7", 3 , 20 }, /* BBR7 ZZ, lhhll */
/* 80 */ { "bra ", 2 , 19 }, /* BRA lhhll */
/* 81 */ { "sta ", 2 , 11 }, /* STA (ZZ, X) */
/* 82 */ { "clx ", 1 , 0 }, /* CLX */
/* 83 */ { "tst ", 3 , 3 }, /* TST #nn, ZZ */
/* 84 */ { "sty ", 2 , 7 }, /* STY ZZ */
/* 85 */ { "sta ", 2 , 7 }, /* STA ZZ */
/* 86 */ { "stx ", 2 , 7 }, /* STX ZZ */
/* 87 */ { "smb0", 2 , 7 }, /* SMB0 ZZ */
/* 88 */ { "dey ", 1 , 0 }, /* DEY */
/* 89 */ { "bit ", 2 , 2 }, /* BIT #nn */
/* 8A */ { "txa ", 1 , 0 }, /* TXA */
/* 8B */ { ".db ", 1 , 22 }, /* UNUSED */
/* 8C */ { "sty ", 3 , 14 }, /* STY hhll */
/* 8D */ { "sta ", 3 , 14 }, /* STA hhll */
/* 8E */ { "stx ", 3 , 14 }, /* STX hhll */
/* 8F */ { "bbs0", 3 , 20 }, /* BBS0 ZZ, lhhll */
/* 90 */ { "bcc ", 2 , 19 }, /* BCC lhhll */
/* 91 */ { "sta ", 2 , 12 }, /* STA (ZZ), Y */
/* 92 */ { "sta ", 2 , 10 }, /* STA (ZZ) */
/* 93 */ { "tst ", 4 , 5 }, /* TST #nn, hhll */
/* 94 */ { "sty ", 2 , 8 }, /* STY ZZ, X */
/* 95 */ { "sta ", 2 , 8 }, /* STA ZZ, X */
/* 96 */ { "stx ", 2 , 9 }, /* STX ZZ, Y */
/* 97 */ { "smb1", 2 , 7 }, /* SMB1 ZZ */
/* 98 */ { "tya ", 1 , 0 }, /* TYA */
/* 99 */ { "sta ", 3 , 17 }, /* STA hhll, Y */
/* 9A */ { "txs ", 1 , 0 }, /* TXS */
/* 9B */ { ".db ", 1 , 22 }, /* UNUSED */
/* 9C */ { "stz ", 3 , 14 }, /* STZ hhll */
/* 9D */ { "sta ", 3 , 16 }, /* STA hhll, X */
/* 9E */ { "stz ", 3 , 16 }, /* STZ hhll, X */
/* 9F */ { "bbs1", 3 , 20 }, /* BBS1 ZZ, lhhll */
/* A0 */ { "ldy ", 2 , 2 }, /* LDY #nn */
/* A1 */ { "lda ", 2 , 11 }, /* LDA (ZZ, X) */
/* A2 */ { "ldx ", 2 , 2 }, /* LDA #nn */
/* A3 */ { "tst ", 3 , 4 }, /* TST #nn, ZZ, X */
/* A4 */ { "ldy ", 2 , 7 }, /* LDY ZZ */
/* A5 */ { "lda ", 2 , 7 }, /* LDA ZZ */
/* A6 */ { "ldx ", 2 , 7 }, /* LDX ZZ */
/* A7 */ { "smb2", 2 , 7 }, /* SMB2 ZZ */
/* A8 */ { "tay ", 1 , 0 }, /* TAY */
/* A9 */ { "lda ", 2 , 2 }, /* LDA #nn */
/* AA */ { "tax ", 1 , 0 }, /* TAX */
/* AB */ { ".db ", 1 , 22 }, /* UNUSED */
/* AC */ { "ldy ", 3 , 14 }, /* LDY hhll */
/* AD */ { "lda ", 3 , 14 }, /* LDA hhll */
/* AE */ { "ldx ", 3 , 14 }, /* LDX hhll */
/* AF */ { "bbs2", 3 , 20 }, /* BBS2 ZZ, lhhll */
/* B0 */ { "bcs ", 2 , 19 }, /* BCS lhhll */
/* B1 */ { "lda ", 2 , 12 }, /* LDA (ZZ), Y */
/* B2 */ { "lda ", 2 , 10 }, /* LDA (ZZ) */
/* B3 */ { "tst ", 4 , 6 }, /* TST #nn, hhll, X */
/* B4 */ { "ldy ", 2 , 8 }, /* LDY ZZ, X */
/* B5 */ { "lda ", 2 , 8 }, /* LDA ZZ, X */
/* B6 */ { "ldx ", 2 , 9 }, /* LDX ZZ, Y */
/* B7 */ { "smb3", 2 , 7 }, /* SMB3 ZZ */
/* B8 */ { "clv ", 1 , 0 }, /* CLV */
/* B9 */ { "lda ", 3 , 17 }, /* LDA hhll, Y */
/* BA */ { "tsx ", 1 , 0 }, /* TSX */
/* BB */ { ".db ", 1 , 22 }, /* UNUSED */
/* BC */ { "ldy ", 3 , 16 }, /* LDY hhll, X */
/* BD */ { "lda ", 3 , 16 }, /* LDA hhll, X */
/* BE */ { "ldx ", 3 , 17 }, /* LDX hhll, Y */
/* BF */ { "bbs3", 3 , 20 }, /* BBS3 ZZ, lhhll */
/* C0 */ { "cpy ", 2 , 2 }, /* CPY #nn */
/* C1 */ { "cmp ", 2 , 11 }, /* CMP (ZZ, X) */
/* C2 */ { "cly ", 1 , 0 }, /* CLY */
/* C3 */ { "tdd ", 7 , 18 }, /* TDD shsl,dhdl,lhlh */
/* C4 */ { "cpy ", 2 , 7 }, /* CPY ZZ */
/* C5 */ { "cmp ", 2 , 7 }, /* CMP ZZ */
/* C6 */ { "dec ", 2 , 7 }, /* DEC ZZ */
/* C7 */ { "smb4", 2 , 7 }, /* SMB4 ZZ */
/* C8 */ { "iny ", 1 , 0 }, /* INY */
/* C9 */ { "cmp ", 2 , 2 }, /* CMP #nn */
/* CA */ { "dex ", 1 , 0 }, /* DEX */
/* CB */ { ".db ", 1 , 22 }, /* UNUSED */
/* CC */ { "cpy ", 3 , 14 }, /* CPY hhll */
/* CD */ { "cmp ", 3 , 14 }, /* CMP hhll */
/* CE */ { "dec ", 3 , 14 }, /* DEC hhll */
/* CF */ { "bbs4", 3 , 20 }, /* BBS4 ZZ, lhhll */
/* D0 */ { "bne ", 2 , 19 }, /* BNE lhhll */
/* D1 */ { "cmp ", 2 , 12 }, /* CMP (ZZ), Y */
/* D2 */ { "cmp ", 2 , 10 }, /* CMP (ZZ) */
/* D3 */ { "tin ", 7 , 18 }, /* TIN shsl,dhdl,lhlh */
/* D4 */ { "csh ", 1 , 0 }, /* CSH */
/* D5 */ { "cmp ", 2 , 8 }, /* CMP ZZ, X */
/* D6 */ { "dec ", 2 , 8 }, /* DEC ZZ, X */
/* D7 */ { "smb5", 2 , 7 }, /* SMB5 ZZ */
/* D8 */ { "cld ", 1 , 0 }, /* CLD */
/* D9 */ { "cmp ", 3 , 17 }, /* CMP hhll, Y */
/* DA */ { "phx ", 1 , 0 }, /* PHX */
/* DB */ { ".db ", 1 , 22 }, /* UNUSED */
/* DC */ { ".db ", 1 , 22 }, /* UNUSED */
/* DD */ { "cmp ", 3 , 16 }, /* CMP hhll, X */
/* DE */ { "dec ", 3 , 16 }, /* DEC hhll, X */
/* DF */ { "bbs5", 3 , 20 }, /* BBS5 ZZ, lhhll */
/* E0 */ { "cpx ", 2 , 2 }, /* CPX #nn */
/* E1 */ { "sbc ", 2 , 11 }, /* SBC (ZZ,X) */
/* E2 */ { ".db ", 1 , 22 }, /* UNUSED */
/* E3 */ { "tia ", 7 , 18 }, /* TIA shsl,dhdl,lhlh */
/* E4 */ { "cpx ", 2 , 7 }, /* CPX ZZ */
/* E5 */ { "sbc ", 2 , 7 }, /* SBC ZZ */
/* E6 */ { "inc ", 2 , 7 }, /* INC ZZ */
/* E7 */ { "smb6", 2 , 7 }, /* SMB6 ZZ */
/* E8 */ { "inx ", 1 , 0 }, /* INX */
/* E9 */ { "sbc ", 2 , 2 }, /* SBC #nn */
/* EA */ { "nop ", 1 , 0 }, /* NOP */
/* EB */ { ".db ", 1 , 22 }, /* UNUSED */
/* EC */ { "cpx ", 3 , 14 }, /* CPX hhll */
/* ED */ { "sbc ", 3 , 14 }, /* SBC hhll */
/* EE */ { "inc ", 3 , 14 }, /* INC hhll */
/* EF */ { "bbs6", 3 , 20 }, /* BBS6 ZZ, lhhll */
/* F0 */ { "beq ", 2 , 19 }, /* BEQ lhhll */
/* F1 */ { "sbc ", 2 , 12 }, /* SBC (ZZ), Y */
/* F2 */ { "sbc ", 2 , 10 }, /* SBC (ZZ) */
/* F3 */ { "tai ", 7 , 18 }, /* TAI shsl,dhdl,lhlh */
/* F4 */ { "set ", 1 , 0 }, /* SET */
/* F5 */ { "sbc ", 2 , 8 }, /* SBC ZZ, X */
/* F6 */ { "inc ", 2 , 8 }, /* INC ZZ, X */
/* F7 */ { "smb7", 2 , 7 }, /* SMB7 ZZ */
/* F8 */ { "sed ", 1 , 0 }, /* SED */
/* F9 */ { "sbc ", 3 , 17 }, /* SBC hhll, Y */
/* FA */ { "plx ", 1 , 0 }, /* PLX */
/* FB */ { ".db ", 1 , 22 }, /* UNUSED */
/* FC */ { ".db ", 1 , 22 }, /* UNUSED */
/* FD */ { "sbc ", 3 , 16 }, /* SBC hhll, X */
/* FE */ { "inc ", 3 , 16 }, /* INC hhll, X */
/* FF */ { "bbs7", 3 , 20 } /* BBS7 ZZ, lhhll */
};
/**
* Get opcode description.
*/
const opcode_t* opcode_get(uint8_t op) {
return &pce_opcode[op];
}
/**
*
*/
const char* opcode_format(const opcode_t *op, int i) {
if((i < 0) || (i >= PCE_ARG_COUNT)) {
return NULL;
}
return pce_opstring[op->type][i];
}
/**
* Is the instruction a local jump ?
*/
int opcode_is_local_jump(uint8_t op) {
return
((op & 0x0F) == 0x0F) || /* BBR* and BBS* */
(op == 0x90) || /* BCC */
(op == 0xB0) || /* BCS */
(op == 0x80) || /* BRA */
(op == 0xF0) || /* BEQ */
(op == 0x30) || /* BMI */
(op == 0xD0) || /* BNE */
(op == 0x10) || /* BPL */
(op == 0x44) || /* BSR */
(op == 0x50) || /* BVC */
(op == 0x70); /* BVS */
}
/**
* Is the instruction a "far" jump ?
*/
int opcode_is_far_jump(uint8_t op) {
return
(op == 0x4C) || /* JMP */
(op == 0x20); /* JSR */
}