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opcodes6502.py
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# Opcodes for the Tinkerer's Assembler for the 6502/65c02/65816
# Scot W. Stevenson <[email protected]>
# First version: 23. Okt 2015
# This version: 03. Dec 2015
# OPCODE TABLE for the 6502
# Unused opcodes are left in the table and marked with "UNUSED" to give people
# the freedom to add undocumented functions.
opcode_table = (
(0x00, 'brk', 2), # Assembler enforces signature byte
(0x01, 'ora.zxi', 2),
(0x02, 'UNUSED', 0),
(0x03, 'UNUSED', 0),
(0x04, 'UNUSED', 0),
(0x05, 'ora.z', 2),
(0x06, 'asl.z', 2),
(0x07, 'UNUSED', 0),
(0x08, 'php', 1),
(0x09, 'ora.#', 2),
(0x0a, 'asl.a', 1),
(0x0b, 'UNUSED', 0),
(0x0c, 'UNUSED', 0),
(0x0d, 'ora', 3),
(0x0e, 'asl', 3),
(0x0f, 'UNUSED', 0),
(0x10, 'bpl', 2),
(0x11, 'ora.ziy', 2),
(0x12, 'UNUSED', 0),
(0x13, 'UNUSED', 0),
(0x14, 'UNUSED', 0),
(0x15, 'ora.zx', 2),
(0x16, 'asl.zx', 2),
(0x17, 'UNUSED', 0),
(0x18, 'clc', 1),
(0x19, 'ora.y', 3),
(0x1a, 'UNUSED', 0),
(0x1b, 'UNUSED', 0),
(0x1c, 'UNUSED', ),
(0x1d, 'ora.x', 3),
(0x1e, 'asl.x', 3),
(0x1f, 'UNUSED', 0),
(0x20, 'jsr', 3),
(0x21, 'and.zxi', 2),
(0x22, 'UNUSED', 0),
(0x23, 'UNUSED', 0),
(0x24, 'bit.z', 2),
(0x25, 'and.z', 2),
(0x26, 'rol.z', 2),
(0x27, 'UNUSED', 0),
(0x28, 'plp', 1),
(0x29, 'and.#', 2),
(0x2a, 'rol.a', 1),
(0x2b, 'UNUSED', 0),
(0x2c, 'bit', 3),
(0x2d, 'and', 3),
(0x2e, 'rol', 3),
(0x2f, 'UNUSED', 0),
(0x30, 'bmi', 2),
(0x31, 'and.ziy', 2),
(0x32, 'UNUSED', ),
(0x33, 'UNUSED', 0),
(0x34, 'UNUSED', ),
(0x35, 'and.zx', 2),
(0x36, 'rol.zx', 2),
(0x37, 'UNUSED', 0),
(0x38, 'sec', 1),
(0x39, 'and.y', 3),
(0x3a, 'UNUSED', 0),
(0x3b, 'UNUSED', 0),
(0x3c, 'UNUSED', 0),
(0x3d, 'and.x', 3),
(0x3e, 'rol.x', 3),
(0x3f, 'UNUSED', 0),
(0x40, 'rti', 1),
(0x41, 'eor.zxi', 2),
(0x42, 'UNUSED', 0),
(0x43, 'UNUSED', 0),
(0x44, 'UNUSED', 0),
(0x45, 'eor.z', 2),
(0x46, 'lsr.z', 2),
(0x47, 'UNUSED', 0),
(0x48, 'pha', 1),
(0x49, 'eor.#', 2),
(0x4a, 'lsr.a', 1),
(0x4b, 'UNUSED', 0),
(0x4c, 'jmp', 3),
(0x4d, 'eor', 3),
(0x4e, 'lsr', 3),
(0x4f, 'UNUSED', 0),
(0x50, 'bvc', 2),
(0x51, 'eor.ziy', 2),
(0x52, 'UNUSED', 0),
(0x53, 'UNUSED', 0),
(0x54, 'UNUSED', 0),
(0x55, 'eor.zx', 2),
(0x56, 'lsr.zx', 2),
(0x57, 'UNUSED', 0),
(0x58, 'cli', 1),
(0x59, 'eor.y', 3),
(0x5a, 'UNUSED', 0),
(0x5b, 'UNUSED', 0),
(0x5c, 'UNUSED', 0),
(0x5d, 'eor.x', 3),
(0x5e, 'lsr.x', 3),
(0x5f, 'UNUSED', 0),
(0x60, 'rts', 1),
(0x61, 'adc.zxi', 2),
(0x62, 'UNUSED', 0),
(0x63, 'UNUSED', 0),
(0x64, 'UNUSED', 0),
(0x65, 'adc.z', 2),
(0x66, 'ror.z', 2),
(0x67, 'UNUSED', 0),
(0x68, 'pla', 1),
(0x69, 'adc.#', 2),
(0x6a, 'ror.a', 1),
(0x6b, 'UNUSED', 0),
(0x6c, 'jmp.i', 3),
(0x6d, 'adc', 3),
(0x6e, 'ror', 3),
(0x6f, 'UNUSED', 0),
(0x70, 'bvs', 2),
(0x71, 'adc.ziy', 2),
(0x72, 'UNUSED', 0),
(0x73, 'UNUSED', 0),
(0x74, 'UNUSED', 0),
(0x75, 'adc.zx', 2),
(0x76, 'ror.zx', 2),
(0x77, 'UNUSED', 0),
(0x78, 'sei', 1),
(0x79, 'adc.y', 3),
(0x7a, 'UNUSED', 0),
(0x7b, 'UNUSED', 0),
(0x7c, 'UNUSED', 0),
(0x7d, 'adc.x', 3),
(0x7e, 'ror.x', 3),
(0x7f, 'UNUSED', 0),
(0x80, 'UNUSED', 0),
(0x81, 'sta.zxi', 2),
(0x82, 'UNUSED', 0),
(0x83, 'UNUSED', 0),
(0x84, 'sty.z', 2),
(0x85, 'sta.z', 2),
(0x86, 'stx.z', 2),
(0x87, 'UNUSED', 0),
(0x88, 'dey', 1),
(0x89, 'UNUSED', 0),
(0x8a, 'txa', 1),
(0x8b, 'UNUSED', 0),
(0x8c, 'sty', 3),
(0x8d, 'sta', 3),
(0x8e, 'stx', 3),
(0x8f, 'UNUSED', 0),
(0x90, 'bcc', 2),
(0x91, 'sta.ziy', 2),
(0x92, 'UNUSED', 0),
(0x93, 'UNUSED', 0),
(0x94, 'sty.zx', 2),
(0x95, 'sta.zx', 2),
(0x96, 'stx.zy', 2),
(0x97, 'UNUSED', 0),
(0x98, 'tya', 1),
(0x99, 'sta.y', 3),
(0x9a, 'txs', 1),
(0x9b, 'UNUSED', 0),
(0x9c, 'UNUSED', 0),
(0x9d, 'sta.x', 3),
(0x9e, 'UNUSED', 0),
(0x9f, 'UNUSED', 0),
(0xa0, 'ldy.#', 2),
(0xa1, 'lda.zxi', 2),
(0xa2, 'ldx.#', 2),
(0xa3, 'UNUSED', 0),
(0xa4, 'ldy.z', 2),
(0xa5, 'lda.z', 2),
(0xa6, 'ldx.z', 2),
(0xa7, 'UNUSED', 0),
(0xa8, 'tay', 1),
(0xa9, 'lda.#', 2),
(0xaa, 'tax', 1),
(0xab, 'UNUSED', 0),
(0xac, 'ldy', 3),
(0xad, 'lda', 3),
(0xae, 'ldx', 3),
(0xaf, 'UNUSED', 0),
(0xb0, 'bcs', 2),
(0xb1, 'lda.ziy', 2),
(0xb2, 'UNUSED', 0),
(0xb3, 'UNUSED', 0),
(0xb4, 'ldy.zx', 2),
(0xb5, 'lda.zx', 2),
(0xb6, 'ldx.zy', 2),
(0xb7, 'UNUSED', 0),
(0xb8, 'clv', 1),
(0xb9, 'lda.y', 3),
(0xba, 'tsx', 1),
(0xbb, 'UNUSED', 0),
(0xbc, 'ldy.x', 3),
(0xbd, 'lda.x', 3),
(0xbe, 'ldx.y', 3),
(0xbf, 'UNUSED', 0),
(0xc0, 'cpy.#', 2),
(0xc1, 'cmp.zxi', 2),
(0xc2, 'UNUSED', 0),
(0xc3, 'UNUSED', 0),
(0xc4, 'cpy.z', 2),
(0xc5, 'cmp.z', 2),
(0xc6, 'dec.z', 2),
(0xc7, 'UNUSED', 0),
(0xc8, 'iny', 1),
(0xc9, 'cmp.#', 2),
(0xca, 'dex', 1),
(0xcb, 'UNUSED', 0),
(0xcc, 'cpy', 3),
(0xcd, 'cmp', 3),
(0xce, 'dec', 3),
(0xcf, 'UNUSED', 0),
(0xd0, 'bne', 2),
(0xd1, 'cmp.ziy', 2),
(0xd2, 'UNUSED', 0),
(0xd3, 'UNUSED', 0),
(0xd4, 'UNUSED', 0),
(0xd5, 'cmp.zx', 2),
(0xd6, 'dec.zx', 2),
(0xd7, 'UNUSED', 0),
(0xd8, 'cld', 1),
(0xd9, 'cmp.y', 3),
(0xda, 'UNUSED', 0),
(0xdb, 'UNUSED', 0),
(0xdc, 'UNUSED', 0),
(0xdd, 'cmp.x', 3),
(0xde, 'dec.x', 3),
(0xdf, 'UNUSED', 0),
(0xe0, 'cpx.#', 2),
(0xe1, 'sbc.zxi', 2),
(0xe2, 'UNUSED', 0),
(0xe3, 'UNUSED', 0),
(0xe4, 'cpx.z', 2),
(0xe5, 'sbc.z', 2),
(0xe6, 'inc.z', 2),
(0xe7, 'UNUSED', 0),
(0xe8, 'inx', 1),
(0xe9, 'sbc.#', 2),
(0xea, 'nop', 1),
(0xeb, 'UNUSED', 0),
(0xec, 'cpx', 3),
(0xed, 'sbc', 3),
(0xee, 'inc', 3),
(0xef, 'UNUSED', 0),
(0xf0, 'beq', 2),
(0xf1, 'sbc.ziy', 2),
(0xf2, 'UNUSED', 0),
(0xf3, 'UNUSED', 0),
(0xf4, 'UNUSED', 0),
(0xf5, 'sbc.zx', 2),
(0xf6, 'inc.zx', 2),
(0xf7, 'UNUSED', 0),
(0xf8, 'sed', 1),
(0xf9, 'sbc.y', 3),
(0xfa, 'UNUSED', 0),
(0xfb, 'UNUSED', 0),
(0xfc, 'UNUSED', 0),
(0xfd, 'sbc.x', 3),
(0xfe, 'inc.x', 3),
(0xff, 'UNUSED', 0))