Initial Project Setup

include/bus.h

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+#pragma once
+
+#include <common.h>
+
+u8 bus_read(u16 address);
+void bus_write(u16 address, u8 value);

include/cart.h

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+#pragma once
+
+#include <common.h>
+
+typedef struct {
+    u8 entry[4];
+    u8 logo[0x30];
+
+    char title[16];
+    u16 new_lic_code;
+    u8 sgb_flag;
+    u8 type;
+    u8 rom_size;
+    u8 ram_size;
+    u8 dest_code;
+    u8 lic_code;
+    u8 version;
+    u8 checksum;
+    u16 global_checksum;
+} rom_header;
+
+bool cart_load(char *cart);

include/common.h

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+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+
+#define BIT(a, n) ((a & (1 << n)) ? 1 : 0)
+#define BIT_SET(a, n, on) (on ? (a) |= (1 << n) : (a) &= !(1 << n))
+#define BETWEEN(a, b, c) ((a >= b) && (a <= c))
+
+void delay(u32 ms);

include/cpu.h

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+#pragma once
+
+#include <common.h>
+
+void cpu_init();
+bool cpu_step();

include/emu.h

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+#pragma once
+
+#include <common.h>
+
+typedef struct {
+    bool paused;
+    bool running;
+    u64 ticks;
+} emu_context;
+
+int emu_run(int, char**);
+emu_context *emu_get_context();

include/ppu.h

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+#pragma once
+
+#include <common.h>
+
+void ppu_init();
+void ppu_tick();

include/timer.h

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+#pragma once
+
+#include <common.h>
+
+void timer_init();
+void timer_tick();