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/*
* 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
};
}