| /* |
| * Copyright (c) 2016 Seth J. Morabito <web@loomcom.com> |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sublicense, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
| * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| package com.loomcom.symon; |
| |
| public interface InstructionTable { |
| |
| /** |
| * Enumeration of Addressing Modes. |
| */ |
| enum Mode { |
| ACC("Accumulator"), |
| ABS("Absolute"), |
| ABX("Absolute, X-indexed"), |
| ABY("Absolute, Y-indexed"), |
| IMM("Immediate"), |
| IMP("Implied"), |
| IND("Indirect"), |
| XIN("X-indexed Indirect"), |
| INY("Indirect, Y-indexed"), |
| REL("Relative"), |
| ZPG("Zeropage"), |
| ZPX("Zeropage, X-indexed"), |
| ZPY("Zeropage, Y-indexed"); |
| |
| private final String text; |
| |
| private Mode(final String text) { |
| this.text = text; |
| } |
| |
| @Override |
| public String toString() { |
| return text; |
| } |
| } |
| |
| // 6502 opcodes. No 65C02 opcodes implemented. |
| |
| /** |
| * Instruction opcode names. |
| */ |
| String[] opcodeNames = { |
| "BRK", "ORA", "KIL", "SLO", "DOP", "ORA", "ASL", "SLO", |
| "PHP", "ORA", "ASL", "ANC", "TOP", "ORA", "ASL", "SLO", |
| "BPL", "ORA", "KIL", "SLO", "DOP", "ORA", "ASL", "SLO", |
| "CLC", "ORA", "NOP", "SLO", "TOP", "ORA", "ASL", "SLO", |
| "JSR", "AND", "KIL", "RLA", "BIT", "AND", "ROL", "RLA", |
| "PLP", "AND", "ROL", "ANC", "BIT", "AND", "ROL", "RLA", |
| "BMI", "AND", "KIL", "RLA", "DOP", "AND", "ROL", "RLA", |
| "SEC", "AND", "NOP", "RLA", "TOP", "AND", "ROL", "RLA", |
| "RTI", "EOR", "KIL", "SRE", "DOP", "EOR", "LSR", "SRE", |
| "PHA", "EOR", "LSR", "ALR", "JMP", "EOR", "LSR", "SRE", |
| "BVC", "EOR", "KIL", "SRE", "DOP", "EOR", "LSR", "SRE", |
| "CLI", "EOR", "NOP", "SRE", "TOP", "EOR", "LSR", "SRE", |
| "RTS", "ADC", "KIL", "RRA", "DOP", "ADC", "ROR", "RRA", |
| "PLA", "ADC", "ROR", "ARR", "JMP", "ADC", "ROR", "RRA", |
| "BVS", "ADC", "KIL", "RRA", "DOP", "ADC", "ROR", "RRA", |
| "SEI", "ADC", "NOP", "RRA", "TOP", "ADC", "ROR", "RRA", |
| "DOP", "STA", "DOP", "SAX", "STY", "STA", "STX", "SAX", |
| "DEY", "DOP", "TXA", "XAA", "STY", "STA", "STX", "SAX", |
| "BCC", "STA", "KIL", "AXA", "STY", "STA", "STX", "SAX", |
| "TYA", "STA", "TXS", "TAS", "SAY", "STA", "XAS", "AXA", |
| "LDY", "LDA", "LDX", "LAX", "LDY", "LDA", "LDX", "LAX", |
| "TAY", "LDA", "TAX", "OAL", "LDY", "LDA", "LDX", "LAX", |
| "BCS", "LDA", "KIL", "LAX", "LDY", "LDA", "LDX", "LAX", |
| "CLV", "LDA", "TSX", "LAS", "LDY", "LDA", "LDX", "LAX", |
| "CPY", "CMP", "DOP", "DCP", "CPY", "CMP", "DEC", "DCP", |
| "INY", "CMP", "DEX", "AXS", "CPY", "CMP", "DEC", "DCP", |
| "BNE", "CMP", "KIL", "DCP", "DOP", "CMP", "DEC", "DCP", |
| "CLD", "CMP", "NOP", "DCP", "TOP", "CMP", "DEC", "DCP", |
| "CPX", "SBC", "DOP", "ISB", "CPX", "SBC", "INC", "ISB", |
| "INX", "SBC", "NOP", "SBC", "CPX", "SBC", "INC", "ISB", |
| "BEQ", "SBC", "KIL", "ISB", "DOP", "SBC", "INC", "ISB", |
| "SED", "SBC", "NOP", "ISB", "TOP", "SBC", "INC", "ISB" |
| }; |
| |
| /** |
| * Instruction addressing modes. |
| */ |
| Mode[] instructionModes = { |
| Mode.IMP,Mode.XIN,Mode.IMP,Mode.XIN,Mode.ZPG,Mode.ZPG,Mode.ZPG,Mode.ZPG, // 0x00-0x07 |
| Mode.IMP,Mode.IMM,Mode.ACC,Mode.IMM,Mode.ABS,Mode.ABS,Mode.ABS,Mode.ABS, // 0x08-0x0f |
| Mode.REL,Mode.INY,Mode.IMP,Mode.INY,Mode.ZPX,Mode.ZPX,Mode.ZPX,Mode.ZPX, // 0x10-0x17 |
| Mode.IMP,Mode.ABY,Mode.IMP,Mode.ABY,Mode.ABX,Mode.ABX,Mode.ABX,Mode.ABX, // 0x18-0x1f |
| Mode.ABS,Mode.XIN,Mode.IMP,Mode.XIN,Mode.ZPG,Mode.ZPG,Mode.ZPG,Mode.ZPG, // 0x20-0x27 |
| Mode.IMP,Mode.IMM,Mode.ACC,Mode.IMM,Mode.ABS,Mode.ABS,Mode.ABS,Mode.ABS, // 0x28-0x2f |
| Mode.REL,Mode.INY,Mode.IMP,Mode.INY,Mode.ZPX,Mode.ZPX,Mode.ZPX,Mode.ZPX, // 0x30-0x37 |
| Mode.IMP,Mode.ABY,Mode.IMP,Mode.ABY,Mode.ABX,Mode.ABX,Mode.ABX,Mode.ABX, // 0x38-0x3f |
| Mode.IMP,Mode.XIN,Mode.IMP,Mode.XIN,Mode.ZPG,Mode.ZPG,Mode.ZPG,Mode.ZPG, // 0x40-0x47 |
| Mode.IMP,Mode.IMM,Mode.ACC,Mode.IMM,Mode.ABS,Mode.ABS,Mode.ABS,Mode.ABS, // 0x48-0x4f |
| Mode.REL,Mode.INY,Mode.IMP,Mode.INY,Mode.ZPX,Mode.ZPX,Mode.ZPX,Mode.ZPX, // 0x50-0x57 |
| Mode.IMP,Mode.ABY,Mode.IMP,Mode.ABY,Mode.ABX,Mode.ABX,Mode.ABX,Mode.ABX, // 0x58-0x5f |
| Mode.IMP,Mode.XIN,Mode.IMP,Mode.XIN,Mode.ZPG,Mode.ZPG,Mode.ZPG,Mode.ZPG, // 0x60-0x67 |
| Mode.IMP,Mode.IMM,Mode.ACC,Mode.IMM,Mode.IND,Mode.ABS,Mode.ABS,Mode.ABS, // 0x68-0x6f |
| Mode.REL,Mode.INY,Mode.IMP,Mode.INY,Mode.ZPX,Mode.ZPX,Mode.ZPX,Mode.ZPX, // 0x70-0x77 |
| Mode.IMP,Mode.ABY,Mode.IMP,Mode.ABY,Mode.ABX,Mode.ABX,Mode.ABX,Mode.ABX, // 0x78-0x7f |
| Mode.IMM,Mode.XIN,Mode.IMM,Mode.XIN,Mode.ZPG,Mode.ZPG,Mode.ZPG,Mode.ZPG, // 0x80-0x87 |
| Mode.IMP,Mode.IMM,Mode.IMP,Mode.IMM,Mode.ABS,Mode.ABS,Mode.ABS,Mode.ABS, // 0x88-0x8f |
| Mode.REL,Mode.INY,Mode.IMP,Mode.INY,Mode.ZPX,Mode.ZPX,Mode.ZPY,Mode.ZPY, // 0x90-0x97 |
| Mode.IMP,Mode.ABY,Mode.IMP,Mode.ABY,Mode.ABX,Mode.ABX,Mode.ABY,Mode.ABY, // 0x98-0x9f |
| Mode.IMM,Mode.XIN,Mode.IMM,Mode.XIN,Mode.ZPG,Mode.ZPG,Mode.ZPG,Mode.ZPG, // 0xa0-0xa7 |
| Mode.IMP,Mode.IMM,Mode.IMP,Mode.IMM,Mode.ABS,Mode.ABS,Mode.ABS,Mode.ABS, // 0xa8-0xaf |
| Mode.REL,Mode.INY,Mode.IMP,Mode.INY,Mode.ZPX,Mode.ZPX,Mode.ZPY,Mode.ZPY, // 0xb0-0xb7 |
| Mode.IMP,Mode.ABY,Mode.IMP,Mode.ABY,Mode.ABX,Mode.ABX,Mode.ABY,Mode.ABY, // 0xb8-0xbf |
| Mode.IMM,Mode.XIN,Mode.IMM,Mode.XIN,Mode.ZPG,Mode.ZPG,Mode.ZPG,Mode.ZPG, // 0xc0-0xc7 |
| Mode.IMP,Mode.IMM,Mode.IMP,Mode.IMM,Mode.ABS,Mode.ABS,Mode.ABS,Mode.ABS, // 0xc8-0xcf |
| Mode.REL,Mode.INY,Mode.IMP,Mode.INY,Mode.ZPX,Mode.ZPX,Mode.ZPX,Mode.ZPX, // 0xd0-0xd7 |
| Mode.IMP,Mode.ABY,Mode.IMP,Mode.ABY,Mode.ABX,Mode.ABX,Mode.ABX,Mode.ABX, // 0xd8-0xdf |
| Mode.IMM,Mode.XIN,Mode.IMM,Mode.XIN,Mode.ZPG,Mode.ZPG,Mode.ZPG,Mode.ZPG, // 0xe0-0xe7 |
| Mode.IMP,Mode.IMM,Mode.IMP,Mode.IMM,Mode.ABS,Mode.ABS,Mode.ABS,Mode.ABS, // 0xe8-0xef |
| Mode.REL,Mode.INY,Mode.IMP,Mode.INY,Mode.ZPX,Mode.ZPX,Mode.ZPX,Mode.ZPX, // 0xf0-0xf7 |
| Mode.IMP,Mode.ABY,Mode.IMP,Mode.ABY,Mode.ABX,Mode.ABX,Mode.ABX,Mode.ABX, // 0xf8-0xff |
| }; |
| |
| /** |
| * Size, in bytes, required for each instruction. |
| */ |
| int[] instructionSizes = { |
| 1, 2, 1, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, |
| 2, 2, 1, 2, 2, 2, 2, 2, 1, 3, 1, 3, 3, 3, 3, 3, |
| 3, 2, 1, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, |
| 2, 2, 1, 2, 2, 2, 2, 2, 1, 3, 1, 3, 3, 3, 3, 3, |
| 1, 2, 1, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, |
| 2, 2, 1, 2, 2, 2, 2, 2, 1, 3, 1, 3, 3, 3, 3, 3, |
| 1, 2, 1, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, |
| 2, 2, 1, 2, 2, 2, 2, 2, 1, 3, 1, 3, 3, 3, 3, 3, |
| 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, |
| 2, 2, 1, 2, 2, 2, 2, 2, 1, 3, 1, 3, 3, 3, 3, 3, |
| 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, |
| 2, 2, 1, 2, 2, 2, 2, 2, 1, 3, 1, 3, 3, 3, 3, 3, |
| 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, |
| 2, 2, 1, 2, 2, 2, 2, 2, 1, 3, 1, 3, 3, 3, 3, 3, |
| 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, |
| 2, 2, 1, 2, 2, 2, 2, 2, 1, 3, 1, 3, 3, 3, 3, 3 |
| }; |
| |
| /** |
| * Number of clock cycles required for each instruction |
| */ |
| int[] instructionClocks = { |
| 7, 6, 0, 8, 3, 3, 5, 5, 3, 2, 2, 2, 4, 4, 6, 6, |
| 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 2, 7, 4, 4, 7, 7, |
| 6, 6, 0, 8, 3, 3, 5, 5, 4, 2, 2, 2, 4, 4, 6, 6, |
| 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 2, 7, 4, 4, 7, 7, |
| 6, 6, 0, 8, 3, 3, 5, 5, 3, 2, 2, 2, 3, 4, 6, 6, |
| 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 2, 7, 4, 4, 7, 7, |
| 6, 6, 0, 8, 3, 3, 5, 5, 4, 2, 2, 2, 5, 4, 6, 6, |
| 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 2, 7, 4, 4, 7, 7, |
| 2, 6, 2, 6, 3, 3, 3, 3, 2, 2, 2, 2, 4, 4, 4, 4, |
| 2, 6, 0, 6, 4, 4, 4, 4, 2, 5, 2, 5, 5, 5, 5, 5, |
| 2, 6, 2, 6, 3, 3, 3, 3, 2, 2, 2, 2, 4, 4, 4, 4, |
| 2, 5, 0, 5, 4, 4, 4, 4, 2, 4, 2, 4, 4, 4, 4, 4, |
| 2, 6, 2, 8, 3, 3, 5, 5, 2, 2, 2, 2, 4, 4, 6, 6, |
| 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 2, 7, 4, 4, 7, 7, |
| 2, 6, 2, 8, 3, 3, 5, 5, 2, 2, 2, 2, 4, 4, 6, 6, |
| 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 2, 7, 4, 4, 7, 7 |
| }; |
| |
| } |