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Diffstat (limited to 'src/recompiler/bswap.h')
| -rw-r--r-- | src/recompiler/bswap.h | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/src/recompiler/bswap.h b/src/recompiler/bswap.h new file mode 100644 index 00000000..4377c7b0 --- /dev/null +++ b/src/recompiler/bswap.h @@ -0,0 +1,225 @@ +#ifndef BSWAP_H +#define BSWAP_H + +#include "config-host.h" + +#include <inttypes.h> + +#ifdef CONFIG_MACHINE_BSWAP_H +#include <sys/endian.h> +#include <sys/types.h> +#include <machine/bswap.h> +#else + +#ifdef CONFIG_BYTESWAP_H +#include <byteswap.h> +#else + +#define bswap_16(x) __extension__ /* <- VBOX */ \ +({ \ + uint16_t __x = (x); \ + ((uint16_t)( \ + (((uint16_t)(__x) & (uint16_t)0x00ffU) << 8) | \ + (((uint16_t)(__x) & (uint16_t)0xff00U) >> 8) )); \ +}) + +#define bswap_32(x) __extension__ /* <- VBOX */ \ +({ \ + uint32_t __x = (x); \ + ((uint32_t)( \ + (((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \ + (((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) | \ + (((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) | \ + (((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) )); \ +}) + +#define bswap_64(x) __extension__ /* <- VBOX */ \ +({ \ + uint64_t __x = (x); \ + ((uint64_t)( \ + (uint64_t)(((uint64_t)(__x) & (uint64_t)0x00000000000000ffULL) << 56) | \ + (uint64_t)(((uint64_t)(__x) & (uint64_t)0x000000000000ff00ULL) << 40) | \ + (uint64_t)(((uint64_t)(__x) & (uint64_t)0x0000000000ff0000ULL) << 24) | \ + (uint64_t)(((uint64_t)(__x) & (uint64_t)0x00000000ff000000ULL) << 8) | \ + (uint64_t)(((uint64_t)(__x) & (uint64_t)0x000000ff00000000ULL) >> 8) | \ + (uint64_t)(((uint64_t)(__x) & (uint64_t)0x0000ff0000000000ULL) >> 24) | \ + (uint64_t)(((uint64_t)(__x) & (uint64_t)0x00ff000000000000ULL) >> 40) | \ + (uint64_t)(((uint64_t)(__x) & (uint64_t)0xff00000000000000ULL) >> 56) )); \ +}) + +#endif /* !CONFIG_BYTESWAP_H */ + +static inline uint16_t bswap16(uint16_t x) +{ + return bswap_16(x); +} + +static inline uint32_t bswap32(uint32_t x) +{ + return bswap_32(x); +} + +static inline uint64_t bswap64(uint64_t x) +{ + return bswap_64(x); +} + +#endif /* ! CONFIG_MACHINE_BSWAP_H */ + +static inline void bswap16s(uint16_t *s) +{ + *s = bswap16(*s); +} + +static inline void bswap32s(uint32_t *s) +{ + *s = bswap32(*s); +} + +static inline void bswap64s(uint64_t *s) +{ + *s = bswap64(*s); +} + +#if defined(HOST_WORDS_BIGENDIAN) +#define be_bswap(v, size) (v) +#define le_bswap(v, size) bswap ## size(v) +#define be_bswaps(v, size) +#define le_bswaps(p, size) *p = bswap ## size(*p); +#else +#define le_bswap(v, size) (v) +#define be_bswap(v, size) bswap ## size(v) +#define le_bswaps(v, size) +#define be_bswaps(p, size) *p = bswap ## size(*p); +#endif + +#define CPU_CONVERT(endian, size, type)\ +static inline type endian ## size ## _to_cpu(type v)\ +{\ + return endian ## _bswap(v, size);\ +}\ +\ +static inline type cpu_to_ ## endian ## size(type v)\ +{\ + return endian ## _bswap(v, size);\ +}\ +\ +static inline void endian ## size ## _to_cpus(type *p)\ +{\ + endian ## _bswaps(p, size)\ +}\ +\ +static inline void cpu_to_ ## endian ## size ## s(type *p)\ +{\ + endian ## _bswaps(p, size)\ +}\ +\ +static inline type endian ## size ## _to_cpup(const type *p)\ +{\ + return endian ## size ## _to_cpu(*p);\ +}\ +\ +static inline void cpu_to_ ## endian ## size ## w(type *p, type v)\ +{\ + *p = cpu_to_ ## endian ## size(v);\ +} + +CPU_CONVERT(be, 16, uint16_t) +CPU_CONVERT(be, 32, uint32_t) +CPU_CONVERT(be, 64, uint64_t) + +CPU_CONVERT(le, 16, uint16_t) +CPU_CONVERT(le, 32, uint32_t) +CPU_CONVERT(le, 64, uint64_t) + +/* unaligned versions (optimized for frequent unaligned accesses)*/ + +#if defined(__i386__) || defined(_ARCH_PPC) + +#define cpu_to_le16wu(p, v) cpu_to_le16w(p, v) +#define cpu_to_le32wu(p, v) cpu_to_le32w(p, v) +#define le16_to_cpupu(p) le16_to_cpup(p) +#define le32_to_cpupu(p) le32_to_cpup(p) +#define be32_to_cpupu(p) be32_to_cpup(p) + +#define cpu_to_be16wu(p, v) cpu_to_be16w(p, v) +#define cpu_to_be32wu(p, v) cpu_to_be32w(p, v) + +#else + +static inline void cpu_to_le16wu(uint16_t *p, uint16_t v) +{ + uint8_t *p1 = (uint8_t *)p; + + p1[0] = v & 0xff; + p1[1] = v >> 8; +} + +static inline void cpu_to_le32wu(uint32_t *p, uint32_t v) +{ + uint8_t *p1 = (uint8_t *)p; + + p1[0] = v & 0xff; + p1[1] = v >> 8; + p1[2] = v >> 16; + p1[3] = v >> 24; +} + +static inline uint16_t le16_to_cpupu(const uint16_t *p) +{ + const uint8_t *p1 = (const uint8_t *)p; + return p1[0] | (p1[1] << 8); +} + +static inline uint32_t le32_to_cpupu(const uint32_t *p) +{ + const uint8_t *p1 = (const uint8_t *)p; + return p1[0] | (p1[1] << 8) | (p1[2] << 16) | (p1[3] << 24); +} + +static inline uint32_t be32_to_cpupu(const uint32_t *p) +{ + const uint8_t *p1 = (const uint8_t *)p; + return p1[3] | (p1[2] << 8) | (p1[1] << 16) | (p1[0] << 24); +} + +static inline void cpu_to_be16wu(uint16_t *p, uint16_t v) +{ + uint8_t *p1 = (uint8_t *)p; + + p1[0] = v >> 8; + p1[1] = v & 0xff; +} + +static inline void cpu_to_be32wu(uint32_t *p, uint32_t v) +{ + uint8_t *p1 = (uint8_t *)p; + + p1[0] = v >> 24; + p1[1] = v >> 16; + p1[2] = v >> 8; + p1[3] = v & 0xff; +} + +#endif + +#ifdef HOST_WORDS_BIGENDIAN +#define cpu_to_32wu cpu_to_be32wu +#define leul_to_cpu(v) glue(glue(le,HOST_LONG_BITS),_to_cpu)(v) +#else +#define cpu_to_32wu cpu_to_le32wu +#define leul_to_cpu(v) (v) +#endif + +#undef le_bswap +#undef be_bswap +#undef le_bswaps +#undef be_bswaps + +/* len must be one of 1, 2, 4 */ +static inline uint32_t qemu_bswap_len(uint32_t value, int len) +{ + return bswap32(value) >> (32 - 8 * len); +} + +#endif /* BSWAP_H */ |