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#ifndef GUARD_GBA_DEFINES
#define GUARD_GBA_DEFINES
#include <stddef.h>
#define TRUE 1
#define FALSE 0
#define IWRAM_DATA __attribute__((section("iwram_data")))
#define EWRAM_DATA __attribute__((section("ewram_data")))
#define ALIGNED(n) __attribute__((aligned(n)))
// The original build process placed COMMON data (i.e. uninitialized globals)
// in IWRAM after the static variables.
// When ld places COMMON variables in the output, it aligns the variable
// according to the size of the variable, with a maximum alignment of 16. This
// results in large alignment values.
// Initialized variables are aligned according to the size of the largest
// primitive type in the object, so their alignment will often be smaller.
// However, we cannot use COMMON data in pokeruby because the order of COMMON
// data in the output is not reliable. Instead, we need to initialize the
// variables so that their order in the source file is preserved in the output.
// But using initialized variables brings us into conflict with those large
// alignment values.
// These macros allow us to get around this by manually specifying what the
// alignment would be if the variable were uninitialized.
#define COMM(decl, n) IWRAM_DATA ALIGNED(1 << n) decl = {0};
#define COMM_2(decl) COMM(decl, 2)
#define COMM_3(decl) COMM(decl, 3)
#define COMM_4(decl) COMM(decl, 4)
#define SOUND_INFO_PTR (*(struct SoundInfo **)0x3007FF0)
#define INTR_CHECK (*(u16 *)0x3007FF8)
#define INTR_VECTOR (*(void **)0x3007FFC)
#define PLTT 0x5000000
#define PLTT_SIZE 0x400
#define BG_PLTT PLTT
#define BG_PLTT_SIZE 0x200
#define OBJ_PLTT (PLTT + 0x200)
#define OBJ_PLTT_SIZE 0x200
#define VRAM 0x6000000
#define VRAM_SIZE 0x18000
#define BG_VRAM VRAM
#define BG_VRAM_SIZE 0x10000
#define BG_CHAR_ADDR(n) (BG_VRAM + (0x4000 * (n)))
#define BG_SCREEN_ADDR(n) (BG_VRAM + (0x800 * (n)))
// text-mode BG
#define OBJ_VRAM0 (VRAM + 0x10000)
#define OBJ_VRAM0_SIZE 0x8000
// bitmap-mode BG
#define OBJ_VRAM1 (VRAM + 0x14000)
#define OBJ_VRAM1_SIZE 0x4000
#define OAM 0x7000000
#define OAM_SIZE 0x400
#define DISPLAY_WIDTH 240
#define DISPLAY_HEIGHT 160
#define TILE_SIZE_4BPP 32
#define TILE_SIZE_8BPP 64
#define TOTAL_OBJ_TILE_COUNT 1024
#define RGB(r, g, b) ((r) | ((g) << 5) | ((b) << 10))
#define RGB_BLACK RGB(0, 0, 0)
#define RGB_WHITE RGB(31, 31, 31)
#endif // GUARD_GBA_DEFINES
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