24 lines
590 B
C
24 lines
590 B
C
#include "../include/cpu.h"
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#include "decoding.h"
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#ifndef CPU_OP_H
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#define CPU_OP_H
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// The number associated with each op code is the matching line of the ALU op code.
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// Based on the table here: https://www.nesdev.org/wiki/CPU_unofficial_opcodes
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enum op_code_base {
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OP_CODE_BASE_ORA = 0x00,
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OP_CODE_BASE_AND = 0x20,
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OP_CODE_BASE_EOR = 0x40,
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OP_CODE_BASE_ADC = 0x60,
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OP_CODE_BASE_STA = 0x80,
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OP_CODE_BASE_LDA = 0xa0,
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OP_CODE_BASE_CMP = 0xc0,
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OP_CODE_BASE_SBC = 0xe0
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};
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void process_op_code(byte op);
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AddressingMode get_op_addr_mode(byte op_code);
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#endif |