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/*
* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
FILE_LICENCE ( GPL2_OR_LATER );
/** @file
*
* Byte-order swapping test functions
*
*/
/* Forcibly enable assertions */
#undef NDEBUG
#include <stdint.h>
#include <assert.h>
#include <byteswap.h>
#include <ipxe/test.h>
/* Provide global functions to allow inspection of generated assembly code */
uint16_t test_bswap16 ( uint16_t x ) {
return __bswap_16 ( x );
}
uint32_t test_bswap32 ( uint32_t x ) {
return __bswap_32 ( x );
}
uint64_t test_bswap64 ( uint64_t x ) {
return __bswap_64 ( x );
}
void test_bswap16s ( uint16_t *x ) {
__bswap_16s ( x );
}
void test_bswap32s ( uint32_t *x ) {
__bswap_32s ( x );
}
void test_bswap64s ( uint64_t *x ) {
__bswap_64s ( x );
}
/**
* Perform byte-order swapping
*
*/
static void byteswap_test_exec ( void ) {
uint16_t test16;
uint32_t test32;
uint64_t test64;
ok ( test_bswap16 ( 0x1234 ) == 0x3412 );
ok ( test_bswap32 ( 0x12345678UL ) == 0x78563412UL );
ok ( test_bswap64 ( 0x123456789abcdef0ULL ) == 0xf0debc9a78563412ULL );
test16 = 0xabcd;
test_bswap16s ( &test16 );
ok ( test16 == 0xcdab );
test32 = 0xabcdef01UL;
test_bswap32s ( &test32 );
ok ( test32 == 0x01efcdabUL );
test64 = 0xabcdef0123456789ULL;
test_bswap64s ( &test64 );
ok ( test64 == 0x8967452301efcdabULL );
}
/** Byte-order swapping self-test */
struct self_test byteswap_test __self_test = {
.name = "byteswap",
.exec = byteswap_test_exec,
};
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