mirror of https://github.com/ipxe/ipxe.git
97 lines
2.3 KiB
C
97 lines
2.3 KiB
C
/*
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* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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/** @file
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*
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* Byte-order swapping test functions
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*
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*/
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/* Forcibly enable assertions */
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#undef NDEBUG
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#include <stdint.h>
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#include <assert.h>
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#include <byteswap.h>
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#include <ipxe/test.h>
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/* Provide global functions to allow inspection of generated assembly code */
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uint16_t test_bswap16 ( uint16_t x ) {
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return __bswap_16 ( x );
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}
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uint32_t test_bswap32 ( uint32_t x ) {
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return __bswap_32 ( x );
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}
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uint64_t test_bswap64 ( uint64_t x ) {
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return __bswap_64 ( x );
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}
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void test_bswap16s ( uint16_t *x ) {
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__bswap_16s ( x );
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}
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void test_bswap32s ( uint32_t *x ) {
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__bswap_32s ( x );
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}
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void test_bswap64s ( uint64_t *x ) {
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__bswap_64s ( x );
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}
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/**
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* Perform byte-order swapping
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*
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*/
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static void byteswap_test_exec ( void ) {
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uint16_t test16;
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uint32_t test32;
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uint64_t test64;
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ok ( test_bswap16 ( 0x1234 ) == 0x3412 );
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ok ( test_bswap32 ( 0x12345678UL ) == 0x78563412UL );
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ok ( test_bswap64 ( 0x123456789abcdef0ULL ) == 0xf0debc9a78563412ULL );
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test16 = 0xabcd;
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test_bswap16s ( &test16 );
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ok ( test16 == 0xcdab );
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test32 = 0xabcdef01UL;
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test_bswap32s ( &test32 );
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ok ( test32 == 0x01efcdabUL );
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test64 = 0xabcdef0123456789ULL;
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test_bswap64s ( &test64 );
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ok ( test64 == 0x8967452301efcdabULL );
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}
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/** Byte-order swapping self-test */
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struct self_test byteswap_test __self_test = {
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.name = "byteswap",
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.exec = byteswap_test_exec,
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};
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