/// Instruction OP Codes
/// Verified against
/// https://www.nesdev.org/obelisk-6502-guide/reference.html
/// ADC
pub const ISA_OP_ADC_I: u8 = 0x69;
pub const ISA_OP_ADC_Z: u8 = 0x65;
pub const ISA_OP_ADC_ZX: u8 = 0x75;
pub const ISA_OP_ADC_ABS: u8 = 0x6d;
pub const ISA_OP_ADC_ABSX: u8 = 0x7d;
pub const ISA_OP_ADC_ABSY: u8 = 0x79;
pub const ISA_OP_ADC_INDX: u8 = 0x61;
pub const ISA_OP_ADC_INDY: u8 = 0x71;
/// AND
pub const ISA_OP_AND_I: u8 = 0x29;
pub const ISA_OP_AND_Z: u8 = 0x25;
pub const ISA_OP_AND_ZX: u8 = 0x35;
pub const ISA_OP_AND_ABS: u8 = 0x2d;
pub const ISA_OP_AND_ABSX: u8 = 0x3d;
pub const ISA_OP_AND_ABSY: u8 = 0x39;
pub const ISA_OP_AND_INDX: u8 = 0x21;
pub const ISA_OP_AND_INDY: u8 = 0x31;
/// ASL
pub const ISA_OP_ASL_A: u8 = 0x0a;
pub const ISA_OP_ASL_Z: u8 = 0x06;
pub const ISA_OP_ASL_ZX: u8 = 0x16;
pub const ISA_OP_ASL_ABS: u8 = 0x0e;
pub const ISA_OP_ASL_ABSX: u8 = 0x1e;
/// BCC
pub const ISA_OP_BCC: u8 = 0x90;
/// BCS
pub const ISA_OP_BCS: u8 = 0xb0;
/// BEQ
pub const ISA_OP_BEQ: u8 = 0xf0;
/// BIT

pub const ISA_OP_BIT_ZP: u8 = 0x24;
pub const ISA_OP_BIT_ABS: u8 = 0x2c;
/// BMI
pub const ISA_OP_BMI: u8 = 0x30;
/// BNE
pub const ISA_OP_BNE: u8 = 0xd0;
/// BPL
pub const ISA_OP_BPL: u8 = 0x10;
/// BRK
pub const ISA_OP_BRK: u8 = 0x00;
/// BVC

pub const ISA_OP_BVC: u8 = 0x50;
/// BVS
pub const ISA_OP_BVS: u8 = 0x70;
pub const ISA_OP_CLC: u8 = 0x18;
pub const ISA_OP_CLD: u8 = 0xd8;
pub const ISA_OP_CLI: u8 = 0x58;
pub const ISA_OP_CLV: u8 = 0xb8;
pub const ISA_OP_CMP_I: u8 = 0xc9;
pub const ISA_OP_CMP_ZP: u8 = 0xc5;
pub const ISA_OP_CMP_ZPX: u8 = 0xd5;
pub const ISA_OP_CMP_ABS: u8 = 0xcd;
pub const ISA_OP_CMP_ABSX: u8 = 0xdd;
pub const ISA_OP_CMP_ABSY: u8 = 0xd9;
pub const ISA_OP_CMP_INDX: u8 = 0xc1;
pub const ISA_OP_CMP_INDY: u8 = 0xd1;
pub const ISA_OP_CPX_I: u8 = 0xe0;
pub const ISA_OP_CPX_ZP: u8 = 0xe4;
pub const ISA_OP_CPX_ABS: u8 = 0xec;
pub const ISA_OP_CPY_I: u8 = 0xc0;
pub const ISA_OP_CPY_ZP: u8 = 0xc4;
pub const ISA_OP_CPY_ABS: u8 = 0xcc;
pub const ISA_OP_DEC_ZP: u8 = 0xc6;
pub const ISA_OP_DEC_ZPX: u8 = 0xd6;
pub const ISA_OP_DEC_ABS: u8 = 0xce;
pub const ISA_OP_DEC_ABSX: u8 = 0xde;
pub const ISA_OP_DEX: u8 = 0xca;
pub const ISA_OP_DEY: u8 = 0x88;
pub const ISA_OP_EOR_I: u8 = 0x49;
pub const ISA_OP_EOR_ZP: u8 = 0x45;
pub const ISA_OP_EOR_ZPX: u8 = 0x55;
pub const ISA_OP_EOR_ABS: u8 = 0x4d;
pub const ISA_OP_EOR_ABSX: u8 = 0x5d;
pub const ISA_OP_EOR_ABSY: u8 = 0x59;
pub const ISA_OP_EOR_INDX: u8 = 0x41;
pub const ISA_OP_EOR_INDY: u8 = 0x51;
pub const ISA_OP_INC_ZP: u8 = 0xe6;
pub const ISA_OP_INC_ZPX: u8 = 0xf6;
pub const ISA_OP_INC_ABS: u8 = 0xee;
pub const ISA_OP_INC_ABSX: u8 = 0xfe;
pub const ISA_OP_INX: u8 = 0xe8;
pub const ISA_OP_INY: u8 = 0xc8;
pub const ISA_OP_JMP_ABS: u8 = 0x4c;
pub const ISA_OP_JMP_IND: u8 = 0x6c;
pub const ISA_OP_JSR: u8 = 0x20;
pub const ISA_OP_LDA_I: u8 = 0xA9;
pub const ISA_OP_LDA_Z: u8 = 0xA5;
pub const ISA_OP_LDA_ZX: u8 = 0xB5;
pub const ISA_OP_LDA_ABS: u8 = 0xAD;
pub const ISA_OP_LDA_ABSX: u8 = 0xBD;
pub const ISA_OP_LDA_ABSY: u8 = 0xB9;
pub const ISA_OP_LDA_INDX: u8 = 0xA1;
pub const ISA_OP_LDA_INDY: u8 = 0xB1;
pub const ISA_OP_LDX_I: u8 = 0xa2;
pub const ISA_OP_LDX_ZP: u8 = 0xa6;
pub const ISA_OP_LDX_ZPY: u8 = 0xb6;
pub const ISA_OP_LDX_ABS: u8 = 0xae;
pub const ISA_OP_LDX_ABSY: u8 = 0xbe;
pub const ISA_OP_LDY_I: u8 = 0xa0;
pub const ISA_OP_LDY_ZP: u8 = 0xa4;
pub const ISA_OP_LDY_ZPX: u8 = 0xb4;
pub const ISA_OP_LDY_ABS: u8 = 0xac;
pub const ISA_OP_LDY_ABSX: u8 = 0xbc;
pub const ISA_OP_LSR_A: u8 = 0x4a;
pub const ISA_OP_LSR_ZP: u8 = 0x46;
pub const ISA_OP_LSR_ZPX: u8 = 0x56;
pub const ISA_OP_LSR_ABS: u8 = 0x4e;
pub const ISA_OP_LSR_ABSX: u8 = 0x5e;
pub const ISA_OP_NOP: u8 = 0xEA;
pub const ISA_OP_ORA_I: u8 = 0x09;
pub const ISA_OP_ORA_ZP: u8 = 0x05;
pub const ISA_OP_ORA_ZPX: u8 = 0x15;
pub const ISA_OP_ORA_ABS: u8 = 0x0d;
pub const ISA_OP_ORA_ABSX: u8 = 0x1d;
pub const ISA_OP_ORA_ABSY: u8 = 0x19;
pub const ISA_OP_ORA_INDX: u8 = 0x01;
pub const ISA_OP_ORA_INDY: u8 = 0x11;
pub const ISA_OP_PHA: u8 = 0x48;
pub const ISA_OP_PHP: u8 = 0x08;
pub const ISA_OP_PLA: u8 = 0x68;
pub const ISA_OP_PLP: u8 = 0x28;
pub const ISA_OP_ROL_A: u8 = 0x2a;
pub const ISA_OP_ROL_ZP: u8 = 0x26;
pub const ISA_OP_ROL_ZPX: u8 = 0x36;
pub const ISA_OP_ROL_ABS: u8 = 0x2e;
pub const ISA_OP_ROL_ABSX: u8 = 0x3e;
pub const ISA_OP_ROR_A: u8 = 0x6a;
pub const ISA_OP_ROR_ZP: u8 = 0x66;
pub const ISA_OP_ROR_ZPX: u8 = 0x76;
pub const ISA_OP_ROR_ABS: u8 = 0x6e;
pub const ISA_OP_ROR_ABSX: u8 = 0x7e;
pub const ISA_OP_RTI: u8 = 0x40;
pub const ISA_OP_RTS: u8 = 0x60;
pub const ISA_OP_SBC_I: u8 = 0xe9;
pub const ISA_OP_SBC_ZP: u8 = 0xe5;
pub const ISA_OP_SBC_ZPX: u8 = 0xf5;
pub const ISA_OP_SBC_ABS: u8 = 0xed;
pub const ISA_OP_SBC_ABSX: u8 = 0xfd;
pub const ISA_OP_SBC_ABSY: u8 = 0xf9;
pub const ISA_OP_SBC_INDX: u8 = 0xe1;
pub const ISA_OP_SBC_INDY: u8 = 0xf1;
pub const ISA_OP_SEC: u8 = 0x38;
pub const ISA_OP_SED: u8 = 0xf8;
pub const ISA_OP_SEI: u8 = 0x78;
pub const ISA_OP_STA_ZP: u8 = 0x85;
pub const ISA_OP_STA_ZPX: u8 = 0x95;
pub const ISA_OP_STA_ABS: u8 = 0x8d;
pub const ISA_OP_STA_ABSX: u8 = 0x9d;
pub const ISA_OP_STA_ABSY: u8 = 0x99;
pub const ISA_OP_STA_INDX: u8 = 0x81;
pub const ISA_OP_STA_INDY: u8 = 0x91;
pub const ISA_OP_STX_ZP: u8 = 0x86;
pub const ISA_OP_STX_ZPY: u8 = 0x96;
pub const ISA_OP_STX_ABS: u8 = 0x8e;
pub const ISA_OP_STY_ZP: u8 = 0x84;
pub const ISA_OP_STY_ZPX: u8 = 0x94;
pub const ISA_OP_STY_ABS: u8 = 0x8c;
pub const ISA_OP_TAX: u8 = 0xaa;
pub const ISA_OP_TAY: u8 = 0xa8;
pub const ISA_OP_TSX: u8 = 0xba;
pub const ISA_OP_TXA: u8 = 0x8a;
pub const ISA_OP_TXS: u8 = 0x9a;
pub const ISA_OP_TYA: u8 = 0x98;
