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#ifndef _CPU
#define _CPU
#define CARRY 0b00000001
#define ZERO 0b00000010
#define INTERRUPT_DISABLE 0b00000100
#define DECIMAL_MODE 0b00001000
#define BREAK 0b00010000
#define BREAK2 0b00100000
#define OVERFLOW 0b01000000
#define NEGATIV 0b10000000
struct CPU{
uint8_t register_a;
uint8_t register_x;
uint8_t register_y;
uint8_t status;
uint16_t pc;
uint8_t memory[0xFFFF];
};
enum adressing_mode{
Immediate = 1,
ZeroPage,
ZeroPage_X,
ZeroPage_Y,
Absolute,
Absolute_X,
Absolute_Y,
Indirect_X,
Indirect_Y,
NoneAddressing,
};
struct CPU create_cpu();
int array_size(uint8_t *program);
uint8_t mem_read(struct CPU *cpu, uint16_t addr);
void mem_write(struct CPU *cpu, uint16_t addr, uint8_t data);
void load(struct CPU *cpu, uint8_t *program);
void load_and_run(struct CPU *cpu, uint8_t *program);
void reset_cpu(struct CPU *cpu);
void update_zero_and_negative_flags(struct CPU *cpu, uint8_t result);
void lda(struct CPU *cpu, enum adressing_mode mode);
void interpret(struct CPU *cpu);
uint16_t mem_read_u16(struct CPU *cpu, uint16_t pos);
uint16_t get_operand_address(struct CPU *cpu, enum adressing_mode mode);
void and(struct CPU *cpu, enum adressing_mode mode);
void enable_flag(struct CPU *cpu, uint8_t flag);
void disable_flag(struct CPU *cpu, uint8_t flag);
void asl(struct CPU *cpu, enum adressing_mode mode);
#endif
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