qemu/tests/tcg/ppc64/byte_reverse.c

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#include <assert.h>
int main(void)
{
unsigned long var;
var = 0xFEDCBA9876543210;
asm("brh %0, %0" : "+r"(var));
assert(var == 0xDCFE98BA54761032);
var = 0xFEDCBA9876543210;
asm("brw %0, %0" : "+r"(var));
assert(var == 0x98BADCFE10325476);
var = 0xFEDCBA9876543210;
asm("brd %0, %0" : "+r"(var));
assert(var == 0x1032547698BADCFE);
return 0;
}