mirror of https://github.com/mlaux/gb6.git
54 lines
904 B
C
54 lines
904 B
C
#ifndef _CPU_H
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#define _CPU_H
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#include "types.h"
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struct dmg;
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struct cpu
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{
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u8 a;
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u8 f;
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u8 b;
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u8 c;
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u8 d;
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u8 e;
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u8 h;
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u8 l;
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u16 sp;
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u16 pc;
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u32 cycle_count;
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u8 interrupt_enable;
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u8 halted;
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struct dmg *dmg;
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// u8 (*mem_read)(void *, u16);
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// void (*mem_write)(void *, u16, u8);
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// void *mem_model;
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};
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// void cpu_bind_mem_model(
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// struct cpu *cpu,
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// void *mem_model,
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// u8 (*mem_read)(void *, u16),
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// void (*mem_write)(void *, u16, u8)
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// );
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void cpu_step(struct cpu *cpu);
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int flag_isset(struct cpu *cpu, int flag);
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#define FLAG_ZERO 0x80
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#define FLAG_SIGN 0x40
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#define FLAG_HALF_CARRY 0x20
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#define FLAG_CARRY 0x10
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#define INT_VBLANK (1 << 0)
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#define INT_LCDSTAT (1 << 1)
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#define INT_TIMER (1 << 2)
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#define INT_SERIAL (1 << 3)
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#define INT_JOYPAD (1 << 4)
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#define NUM_INTERRUPTS 5
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#endif
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