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cpu_decode_internal.h
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// *** WARNING ***
// This file is generated by gen6502.rb
// Keep untouched or ruin the abstraction
// generated file
#pragma once
#include "cpu.h"
#include "cpu_decode.h"
#include "cpu_decode_official.h"
#include "cpu_decode_unofficial.h"
#include "utils.h"
static inline void cpu_decode_internal(cpu_t *self)
{
uint8_t op = cpu_fetch(self);
switch (op) {
case OP_00_BRK: {
cpu_decode_00_brk(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_01_ORA: {
uint16_t addr = fetch_pre_indirect_x(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_01_ora(self, value);
break;
}
case OP_02_STP_UNOFFICIAL: {
cpu_decode_unofficial_02_stp(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_03_SLO_UNOFFICIAL: {
uint16_t addr = fetch_pre_indirect_x(self, false);
cpu_decode_unofficial_03_slo(self, addr);
break;
}
case OP_04_NOP_UNOFFICIAL: {
uint16_t addr = fetch_zero_page(self);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_05_ORA: {
uint16_t addr = fetch_zero_page(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_01_ora(self, value);
break;
}
case OP_06_ASL: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_06_asl(self, addr);
break;
}
case OP_07_SLO_UNOFFICIAL: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_unofficial_03_slo(self, addr);
break;
}
case OP_08_PHP: {
cpu_decode_08_php(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_09_ORA: {
uint8_t value = fetch_immediate(self);
cpu_decode_01_ora(self, value);
break;
}
case OP_0A_ASL: {
cpu_decode_0A_asl(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_0B_ANC_UNOFFICIAL: {
uint8_t value = fetch_immediate(self);
cpu_decode_unofficial_0B_anc(self, value);
break;
}
case OP_0C_NOP_UNOFFICIAL: {
uint16_t addr = fetch_absolute(self, true);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_0D_ORA: {
uint16_t addr = fetch_absolute(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_01_ora(self, value);
break;
}
case OP_0E_ASL: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_06_asl(self, addr);
break;
}
case OP_0F_SLO_UNOFFICIAL: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_unofficial_03_slo(self, addr);
break;
}
case OP_10_BPL: {
uint16_t addr = fetch_relative(self);
cpu_decode_10_bpl(self, addr);
break;
}
case OP_11_ORA: {
uint16_t addr = fetch_post_indirect_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_01_ora(self, value);
break;
}
case OP_12_STP_UNOFFICIAL: {
cpu_decode_unofficial_02_stp(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_13_SLO_UNOFFICIAL: {
uint16_t addr = fetch_post_indirect_y(self, false);
cpu_decode_unofficial_03_slo(self, addr);
break;
}
case OP_14_NOP_UNOFFICIAL: {
uint16_t addr = fetch_zero_page_x(self);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_15_ORA: {
uint16_t addr = fetch_zero_page_x(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_01_ora(self, value);
break;
}
case OP_16_ASL: {
uint16_t addr = fetch_zero_page_x(self);
cpu_decode_06_asl(self, addr);
break;
}
case OP_17_SLO_UNOFFICIAL: {
uint16_t addr = fetch_zero_page_x(self);
cpu_decode_unofficial_03_slo(self, addr);
break;
}
case OP_18_CLC: {
cpu_decode_18_clc(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_19_ORA: {
uint16_t addr = fetch_absolute_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_01_ora(self, value);
break;
}
case OP_1A_NOP_UNOFFICIAL: {
// NOP
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_1B_SLO_UNOFFICIAL: {
uint16_t addr = fetch_absolute_y(self, false);
cpu_decode_unofficial_03_slo(self, addr);
break;
}
case OP_1C_NOP_UNOFFICIAL: {
uint16_t addr = fetch_absolute_x(self, true);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_1D_ORA: {
uint16_t addr = fetch_absolute_x(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_01_ora(self, value);
break;
}
case OP_1E_ASL: {
uint16_t addr = fetch_absolute_x(self, false);
cpu_decode_06_asl(self, addr);
break;
}
case OP_1F_SLO_UNOFFICIAL: {
uint16_t addr = fetch_absolute_x(self, false);
cpu_decode_unofficial_03_slo(self, addr);
break;
}
case OP_20_JSR: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_20_jsr(self, addr);
break;
}
case OP_21_AND: {
uint16_t addr = fetch_pre_indirect_x(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_21_and(self, value);
break;
}
case OP_22_STP_UNOFFICIAL: {
cpu_decode_unofficial_02_stp(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_23_RLA_UNOFFICIAL: {
uint16_t addr = fetch_pre_indirect_x(self, false);
cpu_decode_unofficial_23_rla(self, addr);
break;
}
case OP_24_BIT: {
uint16_t addr = fetch_zero_page(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_24_bit(self, value);
break;
}
case OP_25_AND: {
uint16_t addr = fetch_zero_page(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_21_and(self, value);
break;
}
case OP_26_ROL: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_26_rol(self, addr);
break;
}
case OP_27_RLA_UNOFFICIAL: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_unofficial_23_rla(self, addr);
break;
}
case OP_28_PLP: {
cpu_decode_28_plp(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_29_AND: {
uint8_t value = fetch_immediate(self);
cpu_decode_21_and(self, value);
break;
}
case OP_2A_ROL: {
cpu_decode_2A_rol(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_2B_ANC_UNOFFICIAL: {
uint8_t value = fetch_immediate(self);
cpu_decode_unofficial_0B_anc(self, value);
break;
}
case OP_2C_BIT: {
uint16_t addr = fetch_absolute(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_24_bit(self, value);
break;
}
case OP_2D_AND: {
uint16_t addr = fetch_absolute(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_21_and(self, value);
break;
}
case OP_2E_ROL: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_26_rol(self, addr);
break;
}
case OP_2F_RLA_UNOFFICIAL: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_unofficial_23_rla(self, addr);
break;
}
case OP_30_BMI: {
uint16_t addr = fetch_relative(self);
cpu_decode_30_bmi(self, addr);
break;
}
case OP_31_AND: {
uint16_t addr = fetch_post_indirect_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_21_and(self, value);
break;
}
case OP_32_STP_UNOFFICIAL: {
cpu_decode_unofficial_02_stp(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_33_RLA_UNOFFICIAL: {
uint16_t addr = fetch_post_indirect_y(self, false);
cpu_decode_unofficial_23_rla(self, addr);
break;
}
case OP_34_NOP_UNOFFICIAL: {
uint16_t addr = fetch_zero_page_x(self);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_35_AND: {
uint16_t addr = fetch_zero_page_x(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_21_and(self, value);
break;
}
case OP_36_ROL: {
uint16_t addr = fetch_zero_page_x(self);
cpu_decode_26_rol(self, addr);
break;
}
case OP_37_RLA_UNOFFICIAL: {
uint16_t addr = fetch_zero_page_x(self);
cpu_decode_unofficial_23_rla(self, addr);
break;
}
case OP_38_SEC: {
cpu_decode_38_sec(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_39_AND: {
uint16_t addr = fetch_absolute_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_21_and(self, value);
break;
}
case OP_3A_NOP_UNOFFICIAL: {
// NOP
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_3B_RLA_UNOFFICIAL: {
uint16_t addr = fetch_absolute_y(self, false);
cpu_decode_unofficial_23_rla(self, addr);
break;
}
case OP_3C_NOP_UNOFFICIAL: {
uint16_t addr = fetch_absolute_x(self, true);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_3D_AND: {
uint16_t addr = fetch_absolute_x(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_21_and(self, value);
break;
}
case OP_3E_ROL: {
uint16_t addr = fetch_absolute_x(self, false);
cpu_decode_26_rol(self, addr);
break;
}
case OP_3F_RLA_UNOFFICIAL: {
uint16_t addr = fetch_absolute_x(self, false);
cpu_decode_unofficial_23_rla(self, addr);
break;
}
case OP_40_RTI: {
cpu_decode_40_rti(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_41_EOR: {
uint16_t addr = fetch_pre_indirect_x(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_41_eor(self, value);
break;
}
case OP_42_STP_UNOFFICIAL: {
cpu_decode_unofficial_02_stp(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_43_SRE_UNOFFICIAL: {
uint16_t addr = fetch_pre_indirect_x(self, false);
cpu_decode_unofficial_43_sre(self, addr);
break;
}
case OP_44_NOP_UNOFFICIAL: {
uint16_t addr = fetch_zero_page(self);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_45_EOR: {
uint16_t addr = fetch_zero_page(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_41_eor(self, value);
break;
}
case OP_46_LSR: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_46_lsr(self, addr);
break;
}
case OP_47_SRE_UNOFFICIAL: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_unofficial_43_sre(self, addr);
break;
}
case OP_48_PHA: {
cpu_decode_48_pha(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_49_EOR: {
uint8_t value = fetch_immediate(self);
cpu_decode_41_eor(self, value);
break;
}
case OP_4A_LSR: {
cpu_decode_4A_lsr(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_4B_ALR_UNOFFICIAL: {
uint8_t value = fetch_immediate(self);
cpu_decode_unofficial_4B_alr(self, value);
break;
}
case OP_4C_JMP: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_4C_jmp(self, addr);
break;
}
case OP_4D_EOR: {
uint16_t addr = fetch_absolute(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_41_eor(self, value);
break;
}
case OP_4E_LSR: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_46_lsr(self, addr);
break;
}
case OP_4F_SRE_UNOFFICIAL: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_unofficial_43_sre(self, addr);
break;
}
case OP_50_BVC: {
uint16_t addr = fetch_relative(self);
cpu_decode_50_bvc(self, addr);
break;
}
case OP_51_EOR: {
uint16_t addr = fetch_post_indirect_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_41_eor(self, value);
break;
}
case OP_52_STP_UNOFFICIAL: {
cpu_decode_unofficial_02_stp(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_53_SRE_UNOFFICIAL: {
uint16_t addr = fetch_post_indirect_y(self, false);
cpu_decode_unofficial_43_sre(self, addr);
break;
}
case OP_54_NOP_UNOFFICIAL: {
uint16_t addr = fetch_zero_page_x(self);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_55_EOR: {
uint16_t addr = fetch_zero_page_x(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_41_eor(self, value);
break;
}
case OP_56_LSR: {
uint16_t addr = fetch_zero_page_x(self);
cpu_decode_46_lsr(self, addr);
break;
}
case OP_57_SRE_UNOFFICIAL: {
uint16_t addr = fetch_zero_page_x(self);
cpu_decode_unofficial_43_sre(self, addr);
break;
}
case OP_58_CLI: {
cpu_decode_58_cli(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_59_EOR: {
uint16_t addr = fetch_absolute_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_41_eor(self, value);
break;
}
case OP_5A_NOP_UNOFFICIAL: {
// NOP
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_5B_SRE_UNOFFICIAL: {
uint16_t addr = fetch_absolute_y(self, false);
cpu_decode_unofficial_43_sre(self, addr);
break;
}
case OP_5C_NOP_UNOFFICIAL: {
uint16_t addr = fetch_absolute_x(self, true);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_5D_EOR: {
uint16_t addr = fetch_absolute_x(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_41_eor(self, value);
break;
}
case OP_5E_LSR: {
uint16_t addr = fetch_absolute_x(self, false);
cpu_decode_46_lsr(self, addr);
break;
}
case OP_5F_SRE_UNOFFICIAL: {
uint16_t addr = fetch_absolute_x(self, false);
cpu_decode_unofficial_43_sre(self, addr);
break;
}
case OP_60_RTS: {
cpu_decode_60_rts(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_61_ADC: {
uint16_t addr = fetch_pre_indirect_x(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_61_adc(self, value);
break;
}
case OP_62_STP_UNOFFICIAL: {
cpu_decode_unofficial_02_stp(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_63_RRA_UNOFFICIAL: {
uint16_t addr = fetch_pre_indirect_x(self, false);
cpu_decode_unofficial_63_rra(self, addr);
break;
}
case OP_64_NOP_UNOFFICIAL: {
uint16_t addr = fetch_zero_page(self);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_65_ADC: {
uint16_t addr = fetch_zero_page(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_61_adc(self, value);
break;
}
case OP_66_ROR: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_66_ror(self, addr);
break;
}
case OP_67_RRA_UNOFFICIAL: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_unofficial_63_rra(self, addr);
break;
}
case OP_68_PLA: {
cpu_decode_68_pla(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_69_ADC: {
uint8_t value = fetch_immediate(self);
cpu_decode_61_adc(self, value);
break;
}
case OP_6A_ROR: {
cpu_decode_6A_ror(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_6B_ARR_UNOFFICIAL: {
uint8_t value = fetch_immediate(self);
cpu_decode_unofficial_6B_arr(self, value);
break;
}
case OP_6C_JMP: {
uint16_t addr = fetch_indirect(self);
cpu_decode_4C_jmp(self, addr);
break;
}
case OP_6D_ADC: {
uint16_t addr = fetch_absolute(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_61_adc(self, value);
break;
}
case OP_6E_ROR: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_66_ror(self, addr);
break;
}
case OP_6F_RRA_UNOFFICIAL: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_unofficial_63_rra(self, addr);
break;
}
case OP_70_BVS: {
uint16_t addr = fetch_relative(self);
cpu_decode_70_bvs(self, addr);
break;
}
case OP_71_ADC: {
uint16_t addr = fetch_post_indirect_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_61_adc(self, value);
break;
}
case OP_72_STP_UNOFFICIAL: {
cpu_decode_unofficial_02_stp(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_73_RRA_UNOFFICIAL: {
uint16_t addr = fetch_post_indirect_y(self, false);
cpu_decode_unofficial_63_rra(self, addr);
break;
}
case OP_74_NOP_UNOFFICIAL: {
uint16_t addr = fetch_zero_page_x(self);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_75_ADC: {
uint16_t addr = fetch_zero_page_x(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_61_adc(self, value);
break;
}
case OP_76_ROR: {
uint16_t addr = fetch_zero_page_x(self);
cpu_decode_66_ror(self, addr);
break;
}
case OP_77_RRA_UNOFFICIAL: {
uint16_t addr = fetch_zero_page_x(self);
cpu_decode_unofficial_63_rra(self, addr);
break;
}
case OP_78_SEI: {
cpu_decode_78_sei(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_79_ADC: {
uint16_t addr = fetch_absolute_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_61_adc(self, value);
break;
}
case OP_7A_NOP_UNOFFICIAL: {
// NOP
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_7B_RRA_UNOFFICIAL: {
uint16_t addr = fetch_absolute_y(self, false);
cpu_decode_unofficial_63_rra(self, addr);
break;
}
case OP_7C_NOP_UNOFFICIAL: {
uint16_t addr = fetch_absolute_x(self, true);
(void)cpu_read(self, addr);
// NOP
break;
}
case OP_7D_ADC: {
uint16_t addr = fetch_absolute_x(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_61_adc(self, value);
break;
}
case OP_7E_ROR: {
uint16_t addr = fetch_absolute_x(self, false);
cpu_decode_66_ror(self, addr);
break;
}
case OP_7F_RRA_UNOFFICIAL: {
uint16_t addr = fetch_absolute_x(self, false);
cpu_decode_unofficial_63_rra(self, addr);
break;
}
case OP_80_NOP_UNOFFICIAL: {
(void)fetch_immediate(self);
// NOP
break;
}
case OP_81_STA: {
uint16_t addr = fetch_pre_indirect_x(self, false);
cpu_decode_81_sta(self, addr);
break;
}
case OP_82_NOP_UNOFFICIAL: {
(void)fetch_immediate(self);
// NOP
break;
}
case OP_83_SAX_UNOFFICIAL: {
uint16_t addr = fetch_pre_indirect_x(self, false);
cpu_decode_unofficial_83_sax(self, addr);
break;
}
case OP_84_STY: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_84_sty(self, addr);
break;
}
case OP_85_STA: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_81_sta(self, addr);
break;
}
case OP_86_STX: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_86_stx(self, addr);
break;
}
case OP_87_SAX_UNOFFICIAL: {
uint16_t addr = fetch_zero_page(self);
cpu_decode_unofficial_83_sax(self, addr);
break;
}
case OP_88_DEY: {
cpu_decode_88_dey(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_89_NOP_UNOFFICIAL: {
(void)fetch_immediate(self);
// NOP
break;
}
case OP_8A_TXA: {
cpu_decode_8A_txa(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_8B_XAA_UNOFFICIAL: {
uint8_t value = fetch_immediate(self);
cpu_decode_unofficial_8B_xaa(self, value);
break;
}
case OP_8C_STY: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_84_sty(self, addr);
break;
}
case OP_8D_STA: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_81_sta(self, addr);
break;
}
case OP_8E_STX: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_86_stx(self, addr);
break;
}
case OP_8F_SAX_UNOFFICIAL: {
uint16_t addr = fetch_absolute(self, false);
cpu_decode_unofficial_83_sax(self, addr);
break;
}
case OP_90_BCC: {
uint16_t addr = fetch_relative(self);
cpu_decode_90_bcc(self, addr);
break;
}
case OP_91_STA: {
uint16_t addr = fetch_post_indirect_y(self, false);
cpu_decode_81_sta(self, addr);
break;
}
case OP_92_STP_UNOFFICIAL: {
cpu_decode_unofficial_02_stp(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_93_AHX_UNOFFICIAL: {
uint16_t addr = fetch_post_indirect_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_unofficial_93_ahx(self, value);
break;
}
case OP_94_STY: {
uint16_t addr = fetch_zero_page_x(self);
cpu_decode_84_sty(self, addr);
break;
}
case OP_95_STA: {
uint16_t addr = fetch_zero_page_x(self);
cpu_decode_81_sta(self, addr);
break;
}
case OP_96_STX: {
uint16_t addr = fetch_zero_page_y(self);
cpu_decode_86_stx(self, addr);
break;
}
case OP_97_SAX_UNOFFICIAL: {
uint16_t addr = fetch_zero_page_y(self);
cpu_decode_unofficial_83_sax(self, addr);
break;
}
case OP_98_TYA: {
cpu_decode_98_tya(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_99_STA: {
uint16_t addr = fetch_absolute_y(self, false);
cpu_decode_81_sta(self, addr);
break;
}
case OP_9A_TXS: {
cpu_decode_9A_txs(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_9B_TAS_UNOFFICIAL: {
uint16_t addr = fetch_absolute_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_unofficial_9B_tas(self, value);
break;
}
case OP_9C_SHY_UNOFFICIAL: {
uint16_t addr = fetch_absolute_x(self, false);
cpu_decode_unofficial_9C_shy(self, addr);
break;
}
case OP_9D_STA: {
uint16_t addr = fetch_absolute_x(self, false);
cpu_decode_81_sta(self, addr);
break;
}
case OP_9E_SHX_UNOFFICIAL: {
uint16_t addr = fetch_absolute_y(self, false);
cpu_decode_unofficial_9E_shx(self, addr);
break;
}
case OP_9F_AHX_UNOFFICIAL: {
uint16_t addr = fetch_absolute_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_unofficial_93_ahx(self, value);
break;
}
case OP_A0_LDY: {
uint8_t value = fetch_immediate(self);
cpu_decode_A0_ldy(self, value);
break;
}
case OP_A1_LDA: {
uint16_t addr = fetch_pre_indirect_x(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_A1_lda(self, value);
break;
}
case OP_A2_LDX: {
uint8_t value = fetch_immediate(self);
cpu_decode_A2_ldx(self, value);
break;
}
case OP_A3_LAX_UNOFFICIAL: {
uint16_t addr = fetch_pre_indirect_x(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_unofficial_A3_lax(self, value);
break;
}
case OP_A4_LDY: {
uint16_t addr = fetch_zero_page(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_A0_ldy(self, value);
break;
}
case OP_A5_LDA: {
uint16_t addr = fetch_zero_page(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_A1_lda(self, value);
break;
}
case OP_A6_LDX: {
uint16_t addr = fetch_zero_page(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_A2_ldx(self, value);
break;
}
case OP_A7_LAX_UNOFFICIAL: {
uint16_t addr = fetch_zero_page(self);
uint8_t value = cpu_read(self, addr);
cpu_decode_unofficial_A3_lax(self, value);
break;
}
case OP_A8_TAY: {
cpu_decode_A8_tay(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_A9_LDA: {
uint8_t value = fetch_immediate(self);
cpu_decode_A1_lda(self, value);
break;
}
case OP_AA_TAX: {
cpu_decode_AA_tax(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);
break;
}
case OP_AB_LAX_UNOFFICIAL: {
uint8_t value = fetch_immediate(self);
cpu_decode_unofficial_A3_lax(self, value);
break;
}
case OP_AC_LDY: {
uint16_t addr = fetch_absolute(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_A0_ldy(self, value);
break;
}
case OP_AD_LDA: {
uint16_t addr = fetch_absolute(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_A1_lda(self, value);
break;
}
case OP_AE_LDX: {
uint16_t addr = fetch_absolute(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_A2_ldx(self, value);
break;
}
case OP_AF_LAX_UNOFFICIAL: {
uint16_t addr = fetch_absolute(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_unofficial_A3_lax(self, value);
break;
}
case OP_B0_BCS: {
uint16_t addr = fetch_relative(self);
cpu_decode_B0_bcs(self, addr);
break;
}
case OP_B1_LDA: {
uint16_t addr = fetch_post_indirect_y(self, true);
uint8_t value = cpu_read(self, addr);
cpu_decode_A1_lda(self, value);
break;
}
case OP_B2_STP_UNOFFICIAL: {
cpu_decode_unofficial_02_stp(self);
// fetch next instruction and throw it away
(void)cpu_read(self, self->reg.pc);