projects / OpenSPARC-T2-SAM / blame
| Commit | Line | Data |
|---|---|---|
| 920dae64 AT |
1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== | |
| 3 | * | |
| 4 | * OpenSPARC T2 Processor File: byteswap.s | |
| 5 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. | |
| 6 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. | |
| 7 | * | |
| 8 | * The above named program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public | |
| 10 | * License version 2 as published by the Free Software Foundation. | |
| 11 | * | |
| 12 | * The above named program is distributed in the hope that it will be | |
| 13 | * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | * General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public | |
| 18 | * License along with this work; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. | |
| 20 | * | |
| 21 | * ========== Copyright Header End ============================================ | |
| 22 | */ | |
| 23 | #if defined(ARCH_AMD64) | |
| 24 | ||
| 25 | .text | |
| 26 | ||
| 27 | /*============================================================================*\ | |
| 28 | * uint16_t byteswap16( uint16_t v ) | |
| 29 | \*============================================================================*/ | |
| 30 | .align 16 | |
| 31 | .globl byteswap16 | |
| 32 | .type byteswap16, @function | |
| 33 | byteswap16: | |
| 34 | movw %di,%ax | |
| 35 | xchgb %ah,%al | |
| 36 | ret | |
| 37 | .size byteswap16, [.-byteswap16] | |
| 38 | ||
| 39 | /*============================================================================*\ | |
| 40 | * uint32_t byteswap32( uint32_t v ) | |
| 41 | \*============================================================================*/ | |
| 42 | .align 16 | |
| 43 | .globl byteswap32 | |
| 44 | ||
| 45 | .type byteswap32, @function | |
| 46 | byteswap32: | |
| 47 | movl %edi,%eax | |
| 48 | bswapl %eax | |
| 49 | ret | |
| 50 | .size byteswap32, [.-byteswap32] | |
| 51 | ||
| 52 | /*============================================================================*\ | |
| 53 | * uint64_t byteswap64( uint64_t v ) | |
| 54 | \*============================================================================*/ | |
| 55 | .align 16 | |
| 56 | .globl byteswap64 | |
| 57 | .type byteswap64, @function | |
| 58 | byteswap64: | |
| 59 | movq %rdi,%rax | |
| 60 | bswapq %rax | |
| 61 | ret | |
| 62 | .size byteswap64, [.-byteswap64] | |
| 63 | ||
| 64 | #endif |