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Fills in the first quarter of the opcode map.

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Thomas Harte 2021-01-15 21:58:46 -05:00
parent d82187bee2
commit e0d90f69ec
1 changed files with 40 additions and 0 deletions
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40
InstructionSets/M50740/Decoder.cpp
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@ -24,6 +24,7 @@ std::pair<int, InstructionSet::M50740::Instruction> Decoder::decode(const uint8_
return std::make_pair(1, Instruction());
#define Map(opcode, operation, addressing_mode) case opcode: instr_ = Instruction(Operation::operation, AddressingMode::addressing_mode); break
/* 0x00 – 0x0f */
Map(0x00, BRK, Implied); Map(0x01, ORA, XIndirect);
Map(0x02, JSR, ZeroPageIndirect); Map(0x03, BBS, Bit0AccumulatorRelative);
@ -36,6 +37,45 @@ std::pair<int, InstructionSet::M50740::Instruction> Decoder::decode(const uint8_
Map(0x0d, ORA, Absolute);
Map(0x0e, ASL, Absolute); Map(0x0f, SEB, Bit0ZeroPage);
/* 0x10 – 0x1f */
Map(0x10, BPL, Relative); Map(0x11, ORA, IndirectY);
Map(0x12, CLT, Implied); Map(0x13, BBC, Bit0AccumulatorRelative);
Map(0x15, ORA, ZeroPageX);
Map(0x16, ASL, ZeroPageX); Map(0x17, BBC, Bit0ZeroPageRelative);
Map(0x18, CLC, Implied); Map(0x19, ORA, AbsoluteY);
Map(0x1a, DEC, Accumulator); Map(0x1b, CLB, Bit0Accumulator);
Map(0x1d, ORA, AbsoluteX);
Map(0x1e, ASL, AbsoluteX); Map(0x1f, CLB, Bit0ZeroPage);
/* 0x20 – 0x2f */
Map(0x20, JSR, Absolute); Map(0x21, AND, XIndirect);
Map(0x22, JSR, SpecialPage); Map(0x23, BBS, Bit1AccumulatorRelative);
Map(0x24, BIT, ZeroPage); Map(0x25, AND, ZeroPage);
Map(0x26, ROL, ZeroPage); Map(0x27, BBS, Bit1ZeroPageRelative);
Map(0x28, PLP, Implied); Map(0x29, AND, Immediate);
Map(0x2a, ROL, Accumulator); Map(0x2b, SEB, Bit1Accumulator);
Map(0x2c, BIT, Absolute); Map(0x2d, AND, Absolute);
Map(0x2e, ROL, Absolute); Map(0x2f, SEB, Bit1ZeroPage);
/* 0x30 – 0x3f */
Map(0x30, BMI, Relative); Map(0x31, AND, IndirectY);
Map(0x32, SET, Implied); Map(0x33, BBC, Bit1AccumulatorRelative);
Map(0x35, AND, ZeroPageX);
Map(0x36, ROL, ZeroPageX); Map(0x37, BBC, Bit1ZeroPageRelative);
Map(0x38, SEC, Implied); Map(0x39, AND, AbsoluteY);
Map(0x3a, INC, Accumulator); Map(0x3b, CLB, Bit1Accumulator);
Map(0x3c, LDM, ImmediateZeroPage); Map(0x3d, AND, AbsoluteX);
Map(0x3e, ROL, AbsoluteX); Map(0x3f, CLB, Bit1ZeroPage);
#undef Map
}
}