mirror of
https://github.com/dborth/vbagx.git
synced 2024-11-30 06:24:17 +01:00
69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
#ifndef PORT_H
|
|
#define PORT_H
|
|
|
|
#ifdef __CELLOS_LV2__
|
|
/* PlayStation3 */
|
|
#include <ppu_intrinsics.h>
|
|
#endif
|
|
|
|
#ifdef _XBOX360
|
|
/* XBox 360 */
|
|
#include <ppcintrinsics.h>
|
|
#endif
|
|
|
|
#include "Types.h"
|
|
|
|
// swaps a 16-bit value
|
|
static inline u16 swap16(u16 v)
|
|
{
|
|
return (v<<8)|(v>>8);
|
|
}
|
|
|
|
// swaps a 32-bit value
|
|
static inline u32 swap32(u32 v)
|
|
{
|
|
return (v<<24)|((v<<8)&0xff0000)|((v>>8)&0xff00)|(v>>24);
|
|
}
|
|
|
|
#ifdef WORDS_BIGENDIAN
|
|
#if defined(__GNUC__) && defined(__ppc__)
|
|
|
|
#define READ16LE(base) \
|
|
({ unsigned short lhbrxResult; \
|
|
__asm__ ("lhbrx %0, 0, %1" : "=r" (lhbrxResult) : "r" (base) : "memory"); \
|
|
lhbrxResult; })
|
|
|
|
#define READ32LE(base) \
|
|
({ unsigned long lwbrxResult; \
|
|
__asm__ ("lwbrx %0, 0, %1" : "=r" (lwbrxResult) : "r" (base) : "memory"); \
|
|
lwbrxResult; })
|
|
|
|
#define WRITE16LE(base, value) \
|
|
__asm__ ("sthbrx %0, 0, %1" : : "r" (value), "r" (base) : "memory")
|
|
|
|
#define WRITE32LE(base, value) \
|
|
__asm__ ("stwbrx %0, 0, %1" : : "r" (value), "r" (base) : "memory")
|
|
|
|
#else
|
|
#define READ16LE(x) \
|
|
swap16(*((u16 *)(x)))
|
|
#define READ32LE(x) \
|
|
swap32(*((u32 *)(x)))
|
|
#define WRITE16LE(x,v) \
|
|
*((u16 *)x) = swap16((v))
|
|
#define WRITE32LE(x,v) \
|
|
*((u32 *)x) = swap32((v))
|
|
#endif
|
|
#else
|
|
#define READ16LE(x) \
|
|
*((u16 *)x)
|
|
#define READ32LE(x) \
|
|
*((u32 *)x)
|
|
#define WRITE16LE(x,v) \
|
|
*((u16 *)x) = (v)
|
|
#define WRITE32LE(x,v) \
|
|
*((u32 *)x) = (v)
|
|
#endif
|
|
|
|
#endif // PORT_H
|