diff options
Diffstat (limited to 'qemu/roms/ipxe/src/arch/i386/include/bits/byteswap.h')
-rw-r--r-- | qemu/roms/ipxe/src/arch/i386/include/bits/byteswap.h | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/qemu/roms/ipxe/src/arch/i386/include/bits/byteswap.h b/qemu/roms/ipxe/src/arch/i386/include/bits/byteswap.h deleted file mode 100644 index 53b6a454d..000000000 --- a/qemu/roms/ipxe/src/arch/i386/include/bits/byteswap.h +++ /dev/null @@ -1,70 +0,0 @@ -#ifndef _BITS_BYTESWAP_H -#define _BITS_BYTESWAP_H - -/** @file - * - * Byte-order swapping functions - * - */ - -#include <stdint.h> - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -static inline __attribute__ (( always_inline, const )) uint16_t -__bswap_variable_16 ( uint16_t x ) { - __asm__ ( "xchgb %b0,%h0" : "=q" ( x ) : "0" ( x ) ); - return x; -} - -static inline __attribute__ (( always_inline )) void -__bswap_16s ( uint16_t *x ) { - __asm__ ( "rorw $8, %0" : "+m" ( *x ) ); -} - -static inline __attribute__ (( always_inline, const )) uint32_t -__bswap_variable_32 ( uint32_t x ) { - __asm__ ( "bswapl %0" : "=r" ( x ) : "0" ( x ) ); - return x; -} - -static inline __attribute__ (( always_inline )) void -__bswap_32s ( uint32_t *x ) { - __asm__ ( "bswapl %0" : "=r" ( *x ) : "0" ( *x ) ); -} - -static inline __attribute__ (( always_inline, const )) uint64_t -__bswap_variable_64 ( uint64_t x ) { - uint32_t in_high = ( x >> 32 ); - uint32_t in_low = ( x & 0xffffffffUL ); - uint32_t out_high; - uint32_t out_low; - - __asm__ ( "bswapl %0\n\t" - "bswapl %1\n\t" - "xchgl %0,%1\n\t" - : "=r" ( out_high ), "=r" ( out_low ) - : "0" ( in_high ), "1" ( in_low ) ); - - return ( ( ( ( uint64_t ) out_high ) << 32 ) | - ( ( uint64_t ) out_low ) ); -} - -static inline __attribute__ (( always_inline )) void -__bswap_64s ( uint64_t *x ) { - struct { - uint32_t __attribute__ (( may_alias )) low; - uint32_t __attribute__ (( may_alias )) high; - } __attribute__ (( may_alias )) *dwords = ( ( void * ) x ); - uint32_t discard; - - __asm__ ( "movl %0,%2\n\t" - "bswapl %2\n\t" - "xchgl %2,%1\n\t" - "bswapl %2\n\t" - "movl %2,%0\n\t" - : "+m" ( dwords->low ), "+m" ( dwords->high ), - "=r" ( discard ) ); -} - -#endif /* _BITS_BYTESWAP_H */ |