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Add zero-page instructions

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Peter Evans 2018-02-21 20:42:05 -06:00
parent 48872cf8d1
commit 739451366f
2 changed files with 16 additions and 16 deletions
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16
src/mos6502.addr.c
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@ -20,21 +20,21 @@
static int addr_modes[] = { static int addr_modes[] = {
// 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F // 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
IMP, IDX, NOA, NOA, NOA, ZPG, ZPG, NOA, IMP, IMM, ACC, NOA, NOA, ABS, ABS, NOA, // 0x IMP, IDX, NOA, NOA, NOA, ZPG, ZPG, NOA, IMP, IMM, ACC, NOA, NOA, ABS, ABS, NOA, // 0x
REL, IDY, NOA, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // 1x REL, IDY, ZPG, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // 1x
ABS, IDX, NOA, NOA, ZPG, ZPG, ZPG, NOA, IMP, IMM, ACC, NOA, ABS, ABS, ABS, NOA, // 2x ABS, IDX, NOA, NOA, ZPG, ZPG, ZPG, NOA, IMP, IMM, ACC, NOA, ABS, ABS, ABS, NOA, // 2x
REL, IDY, NOA, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // 3x REL, IDY, ZPG, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // 3x
IMP, IDX, NOA, NOA, NOA, ZPG, ZPG, NOA, IMP, IMM, ACC, NOA, ABS, ABS, ABS, NOA, // 4x IMP, IDX, NOA, NOA, NOA, ZPG, ZPG, NOA, IMP, IMM, ACC, NOA, ABS, ABS, ABS, NOA, // 4x
REL, IDY, NOA, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // 5x REL, IDY, ZPG, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // 5x
IMP, IDX, NOA, NOA, NOA, ZPG, ZPG, NOA, IMP, IMM, ACC, NOA, IND, ABS, ABS, NOA, // 6x IMP, IDX, NOA, NOA, NOA, ZPG, ZPG, NOA, IMP, IMM, ACC, NOA, IND, ABS, ABS, NOA, // 6x
REL, IDY, NOA, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // 7x REL, IDY, ZPG, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // 7x
NOA, IDX, NOA, NOA, ZPG, ZPG, ZPG, NOA, IMP, NOA, IMP, NOA, ABS, ABS, ABS, NOA, // 8x NOA, IDX, NOA, NOA, ZPG, ZPG, ZPG, NOA, IMP, NOA, IMP, NOA, ABS, ABS, ABS, NOA, // 8x
REL, IDY, NOA, NOA, ZPX, ZPX, ZPY, NOA, IMP, ABY, IMP, NOA, NOA, ABX, NOA, NOA, // 9x REL, IDY, ZPG, NOA, ZPX, ZPX, ZPY, NOA, IMP, ABY, IMP, NOA, NOA, ABX, NOA, NOA, // 9x
IMM, IDX, IMM, NOA, ZPG, ZPG, ZPG, NOA, IMP, IMM, IMP, NOA, ABS, ABS, ABS, NOA, // Ax IMM, IDX, IMM, NOA, ZPG, ZPG, ZPG, NOA, IMP, IMM, IMP, NOA, ABS, ABS, ABS, NOA, // Ax
REL, IDY, NOA, NOA, ZPX, ZPX, ZPY, NOA, IMP, ABY, IMP, NOA, ABX, ABX, ABY, NOA, // Bx REL, IDY, ZPG, NOA, ZPX, ZPX, ZPY, NOA, IMP, ABY, IMP, NOA, ABX, ABX, ABY, NOA, // Bx
IMM, IDX, NOA, NOA, ZPG, ZPG, ZPG, NOA, IMP, IMM, IMP, NOA, ABS, ABS, ABS, NOA, // Cx IMM, IDX, NOA, NOA, ZPG, ZPG, ZPG, NOA, IMP, IMM, IMP, NOA, ABS, ABS, ABS, NOA, // Cx
REL, IDY, NOA, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // Dx REL, IDY, ZPG, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // Dx
IMM, IDX, NOA, NOA, ZPG, ZPG, ZPG, NOA, IMP, IMM, IMP, NOA, ABS, ABS, ABS, NOA, // Ex IMM, IDX, NOA, NOA, ZPG, ZPG, ZPG, NOA, IMP, IMM, IMP, NOA, ABS, ABS, ABS, NOA, // Ex
REL, IDY, NOA, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // Fx REL, IDY, ZPG, NOA, NOA, ZPX, ZPX, NOA, IMP, ABY, NOA, NOA, NOA, ABX, ABX, NOA, // Fx
}; };
/* /*

16
src/mos6502.c
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@ -28,21 +28,21 @@
static int instructions[] = { static int instructions[] = {
// 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F // 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
BRK, ORA, BAD, BAD, BAD, ORA, ASL, BAD, PHP, ORA, ASL, BAD, BAD, ORA, ASL, BAD, // 0x BRK, ORA, BAD, BAD, BAD, ORA, ASL, BAD, PHP, ORA, ASL, BAD, BAD, ORA, ASL, BAD, // 0x
BPL, ORA, BAD, BAD, BAD, ORA, ASL, BAD, CLC, ORA, BAD, BAD, BAD, ORA, ASL, BAD, // 1x BPL, ORA, ORA, BAD, BAD, ORA, ASL, BAD, CLC, ORA, BAD, BAD, BAD, ORA, ASL, BAD, // 1x
JSR, AND, BAD, BAD, BIT, AND, ROL, BAD, PLP, AND, ROL, BAD, BIT, AND, ROL, BAD, // 2x JSR, AND, BAD, BAD, BIT, AND, ROL, BAD, PLP, AND, ROL, BAD, BIT, AND, ROL, BAD, // 2x
BMI, AND, BAD, BAD, BAD, AND, ROL, BAD, SEC, AND, BAD, BAD, BAD, AND, ROL, BAD, // 3x BMI, AND, AND, BAD, BAD, AND, ROL, BAD, SEC, AND, BAD, BAD, BAD, AND, ROL, BAD, // 3x
RTI, EOR, BAD, BAD, BAD, EOR, LSR, BAD, PHA, EOR, LSR, BAD, JMP, EOR, LSR, BAD, // 4x RTI, EOR, BAD, BAD, BAD, EOR, LSR, BAD, PHA, EOR, LSR, BAD, JMP, EOR, LSR, BAD, // 4x
BVC, EOR, BAD, BAD, BAD, EOR, LSR, BAD, CLI, EOR, BAD, BAD, BAD, EOR, LSR, BAD, // 5x BVC, EOR, EOR, BAD, BAD, EOR, LSR, BAD, CLI, EOR, BAD, BAD, BAD, EOR, LSR, BAD, // 5x
RTS, ADC, BAD, BAD, BAD, ADC, ROR, BAD, PLA, ADC, ROR, BAD, JMP, ADC, ROR, BAD, // 6x RTS, ADC, BAD, BAD, BAD, ADC, ROR, BAD, PLA, ADC, ROR, BAD, JMP, ADC, ROR, BAD, // 6x
BVS, ADC, BAD, BAD, BAD, ADC, ROR, BAD, SEI, ADC, BAD, BAD, BAD, ADC, ROR, BAD, // 7x BVS, ADC, ADC, BAD, BAD, ADC, ROR, BAD, SEI, ADC, BAD, BAD, BAD, ADC, ROR, BAD, // 7x
BAD, STA, BAD, BAD, STY, STA, STX, BAD, DEY, BAD, TXA, BAD, STY, STA, STX, BAD, // 8x BAD, STA, BAD, BAD, STY, STA, STX, BAD, DEY, BAD, TXA, BAD, STY, STA, STX, BAD, // 8x
BCC, STA, BAD, BAD, STY, STA, STX, BAD, TYA, STA, TXS, BAD, BAD, STA, BAD, BAD, // 9x BCC, STA, STA, BAD, STY, STA, STX, BAD, TYA, STA, TXS, BAD, BAD, STA, BAD, BAD, // 9x
LDY, LDA, LDX, BAD, LDY, LDA, LDX, BAD, TAY, LDA, TAX, BAD, LDY, LDA, LDX, BAD, // Ax LDY, LDA, LDX, BAD, LDY, LDA, LDX, BAD, TAY, LDA, TAX, BAD, LDY, LDA, LDX, BAD, // Ax
BCS, LDA, BAD, BAD, LDY, LDA, LDX, BAD, CLV, LDA, TSX, BAD, LDY, LDA, LDX, BAD, // Bx BCS, LDA, LDA, BAD, LDY, LDA, LDX, BAD, CLV, LDA, TSX, BAD, LDY, LDA, LDX, BAD, // Bx
CPY, CMP, BAD, BAD, CPY, CMP, DEC, BAD, INY, CMP, DEX, BAD, CPY, CMP, DEC, BAD, // Cx CPY, CMP, BAD, BAD, CPY, CMP, DEC, BAD, INY, CMP, DEX, BAD, CPY, CMP, DEC, BAD, // Cx
BNE, CMP, BAD, BAD, BAD, CMP, DEC, BAD, CLD, CMP, BAD, BAD, BAD, CMP, DEC, BAD, // Dx BNE, CMP, CMP, BAD, BAD, CMP, DEC, BAD, CLD, CMP, BAD, BAD, BAD, CMP, DEC, BAD, // Dx
CPX, SBC, BAD, BAD, CPX, SBC, INC, BAD, INX, SBC, NOP, BAD, CPX, SBC, INC, BAD, // Ex CPX, SBC, BAD, BAD, CPX, SBC, INC, BAD, INX, SBC, NOP, BAD, CPX, SBC, INC, BAD, // Ex
BEQ, SBC, BAD, BAD, BAD, SBC, INC, BAD, SED, SBC, BAD, BAD, BAD, SBC, INC, BAD, // Fx BEQ, SBC, SBC, BAD, BAD, SBC, INC, BAD, SED, SBC, BAD, BAD, BAD, SBC, INC, BAD, // Fx
}; };
/* /*