notaz.gp2x.de / pcsx_rearmed.git / blame
| Commit | Line | Data |
|---|---|---|
| ef79bbde P |
1 | #include <stdint.h> |
| 2 | ||
| 3 | // byteswappings | |
| 4 | ||
| 5 | #define SWAP16(x) ({ uint16_t y=(x); (((y)>>8 & 0xff) | ((y)<<8 & 0xff00)); }) | |
| 6 | #define SWAP32(x) ({ uint32_t y=(x); (((y)>>24 & 0xfful) | ((y)>>8 & 0xff00ul) | ((y)<<8 & 0xff0000ul) | ((y)<<24 & 0xff000000ul)); }) | |
| 7 | ||
| 8 | #ifdef __BIG_ENDIAN__ | |
| 9 | ||
| 10 | // big endian config | |
| 11 | #define HOST2LE32(x) SWAP32(x) | |
| 12 | #define HOST2BE32(x) (x) | |
| 13 | #define LE2HOST32(x) SWAP32(x) | |
| 14 | #define BE2HOST32(x) (x) | |
| 15 | ||
| 16 | #define HOST2LE16(x) SWAP16(x) | |
| 17 | #define HOST2BE16(x) (x) | |
| 18 | #define LE2HOST16(x) SWAP16(x) | |
| 19 | #define BE2HOST16(x) (x) | |
| 20 | ||
| 21 | #else | |
| 22 | ||
| 23 | // little endian config | |
| 24 | #define HOST2LE32(x) (x) | |
| 25 | #define HOST2BE32(x) SWAP32(x) | |
| 26 | #define LE2HOST32(x) (x) | |
| 27 | #define BE2HOST32(x) SWAP32(x) | |
| 28 | ||
| 29 | #define HOST2LE16(x) (x) | |
| 30 | #define HOST2BE16(x) SWAP16(x) | |
| 31 | #define LE2HOST16(x) (x) | |
| 32 | #define BE2HOST16(x) SWAP16(x) | |
| 33 | ||
| 34 | #endif | |
| 35 | ||
| 36 | #define GETLEs16(X) ((int16_t)GETLE16((uint16_t *)X)) | |
| 37 | #define GETLEs32(X) ((int16_t)GETLE32((uint16_t *)X)) | |
| 38 | ||
| 39 | #if defined(__PPC__) && defined(__BIG_ENDIAN__) | |
| 40 | ||
| 41 | // GCC style | |
| 42 | static __inline__ uint16_t GETLE16(uint16_t *ptr) { | |
| 43 | uint16_t ret; __asm__ ("lhbrx %0, 0, %1" : "=r" (ret) : "r" (ptr)); | |
| 44 | return ret; | |
| 45 | } | |
| 46 | static __inline__ uint32_t GETLE32(uint32_t *ptr) { | |
| 47 | uint32_t ret; | |
| 48 | __asm__ ("lwbrx %0, 0, %1" : "=r" (ret) : "r" (ptr)); | |
| 49 | return ret; | |
| 50 | } | |
| 51 | static __inline__ uint32_t GETLE16D(uint32_t *ptr) { | |
| 52 | uint32_t ret; | |
| 53 | __asm__ ("lwbrx %0, 0, %1\n" | |
| 54 | "rlwinm %0, %0, 16, 0, 31" : "=r" (ret) : "r" (ptr)); | |
| 55 | return ret; | |
| 56 | } | |
| 57 | ||
| 58 | static __inline__ void PUTLE16(uint16_t *ptr, uint16_t val) { | |
| 59 | __asm__ ("sthbrx %0, 0, %1" : : "r" (val), "r" (ptr) : "memory"); | |
| 60 | } | |
| 61 | static __inline__ void PUTLE32(uint32_t *ptr, uint32_t val) { | |
| 62 | __asm__ ("stwbrx %0, 0, %1" : : "r" (val), "r" (ptr) : "memory"); | |
| 63 | } | |
| 64 | ||
| 65 | #else | |
| 66 | #define GETLE16(X) LE2HOST16(*(uint16_t *)X) | |
| ef79bbde P |
67 | #define GETLE16D(X) ({uint32_t val = GETLE32(X); (val<<16 | val >> 16);}) |
| 68 | #define PUTLE16(X, Y) do{*((uint16_t *)X)=HOST2LE16((uint16_t)Y);}while(0) | |
| 507aaf98 | 69 | #ifdef __arm__ |
| 70 | #define GETLE32(X) (*(uint16_t *)X|(((uint16_t *)X)[1]<<16)) | |
| 71 | #define PUTLE32(X, Y) do{*((uint16_t *)X)=(uint32_t)Y;((uint16_t *)X)[1]=(uint32_t)(Y)>>16;}while(0) | |
| 72 | #else | |
| 73 | #define GETLE32(X) LE2HOST32(*(uint32_t *)X) | |
| ef79bbde P |
74 | #define PUTLE32(X, Y) do{*((uint32_t *)X)=HOST2LE16((uint32_t)Y);}while(0) |
| 75 | #endif | |
| 507aaf98 | 76 | #endif |