#ifndef GUARD_GLOBAL_H
#define GUARD_GLOBAL_H

#include <string.h>
#include "gba/gba.h"

// Prevent cross-jump optimization.
#define BLOCK_CROSS_JUMP asm("");

// to help in decompiling
#define asm_comment(x) asm volatile("@ -- " x " -- ")
#define asm_unified(x) asm(".syntax unified\n" x "\n.syntax divided")
#define NAKED __attribute__((naked))

// IDE support
#if defined (__APPLE__) || defined (__CYGWIN__) || defined (_MSC_VER)
#define _(x) x
#define __(x) x
#define INCBIN_U8 {0}
#define INCBIN_U16 {0}
#define INCBIN_U32 {0}
#define INCBIN_S8 {0}
#define INCBIN_S16 {0}
#define INCBIN_S32 {0}
#endif // IDE support

#define ARRAY_COUNT(array) (size_t)(sizeof(array) / sizeof((array)[0]))

#define SWAP(a, b, temp)    \
{                           \
    temp = a;               \
    a = b;                  \
    b = temp;               \
}

// useful math macros

// Converts a number to Q8.8 fixed-point format
#define Q_8_8(n) ((s16)((n) * 256))

// Converts a number to Q4.12 fixed-point format
#define Q_4_12(n)  ((s16)((n) * 4096))

// Converts a number to Q24.8 fixed-point format
#define Q_24_8(n)  ((s32)((n) * 256))

// Converts a Q8.8 fixed-point format number to a regular integer
#define Q_8_8_TO_INT(n) ((int)((n) / 256))

// Converts a Q4.12 fixed-point format number to a regular integer
#define Q_4_12_TO_INT(n)  ((int)((n) / 4096))

// Converts a Q24.8 fixed-point format number to a regular integer
#define Q_24_8_TO_INT(n) ((int)((n) >> 8))

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) >= (b) ? (a) : (b))

#endif // GUARD_GLOBAL_H