Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / include / byteswap.h

diff --git a/qemu/roms/ipxe/src/include/byteswap.h b/qemu/roms/ipxe/src/include/byteswap.h
new file mode 100644 (file)
index 0000000..466759c
--- /dev/null
+++ b/qemu/roms/ipxe/src/include/byteswap.h
@@ -0,0 +1,59 @@
+#ifndef ETHERBOOT_BYTESWAP_H
+#define ETHERBOOT_BYTESWAP_H
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include "endian.h"
+#include "bits/byteswap.h"
+
+#define __bswap_constant_16(x) \
+       ((uint16_t)((((uint16_t)(x) & 0x00ff) << 8) | \
+                   (((uint16_t)(x) & 0xff00) >> 8)))
+
+#define __bswap_constant_32(x) \
+       ((uint32_t)((((uint32_t)(x) & 0x000000ffU) << 24) | \
+                   (((uint32_t)(x) & 0x0000ff00U) <<  8) | \
+                   (((uint32_t)(x) & 0x00ff0000U) >>  8) | \
+                   (((uint32_t)(x) & 0xff000000U) >> 24)))
+
+#define __bswap_constant_64(x) \
+       ((uint64_t)((((uint64_t)(x) & 0x00000000000000ffULL) << 56) | \
+                   (((uint64_t)(x) & 0x000000000000ff00ULL) << 40) | \
+                   (((uint64_t)(x) & 0x0000000000ff0000ULL) << 24) | \
+                   (((uint64_t)(x) & 0x00000000ff000000ULL) <<  8) | \
+                   (((uint64_t)(x) & 0x000000ff00000000ULL) >>  8) | \
+                   (((uint64_t)(x) & 0x0000ff0000000000ULL) >> 24) | \
+                   (((uint64_t)(x) & 0x00ff000000000000ULL) >> 40) | \
+                   (((uint64_t)(x) & 0xff00000000000000ULL) >> 56)))
+
+#define __bswap_16(x) \
+       ((uint16_t)(__builtin_constant_p(x) ? \
+       __bswap_constant_16(x) : \
+       __bswap_variable_16(x)))
+
+#define __bswap_32(x) \
+       ((uint32_t)(__builtin_constant_p(x) ? \
+       __bswap_constant_32(x) : \
+       __bswap_variable_32(x)))
+
+#define __bswap_64(x) \
+       ((uint64_t)(__builtin_constant_p(x) ? \
+       __bswap_constant_64(x) : \
+       __bswap_variable_64(x)))
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#include "little_bswap.h"
+#endif
+#if __BYTE_ORDER == __BIG_ENDIAN
+#include "big_bswap.h"
+#endif
+
+/* Make routines available to all */
+#define swap64(x)      __bswap_64(x)
+#define swap32(x)      __bswap_32(x)
+#define swap16(x)      __bswap_16(x)
+#define bswap_64(x)    __bswap_64(x)
+#define bswap_32(x)    __bswap_32(x)
+#define bswap_16(x)    __bswap_16(x)
+       
+#endif /* ETHERBOOT_BYTESWAP_H */