qemu-e2k/tests/tcg/mips/mips32-dspr2/dpsx_w_ph.c
Petar Jovanovic da1a4cef9e target-mips: Fix helper and tests for dot/cross-dot product instructions
Helper function for dpa_w_ph, dpax_w_ph, dps_w_ph and dpsx_w_ph incorrectly
defines halfword vector elements as unsigned values. This results in wrong
output which is not triggered in the tests as they also follow this logic.

Signed-off-by: Petar Jovanovic <petarj@mips.com>
Reviewed-by: Eric Johnson <ericj@mips.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-01-08 11:58:43 +01:00

28 lines
529 B
C

#include<stdio.h>
#include<assert.h>
int main()
{
int rs, rt;
int ach = 5, acl = 5;
int resulth, resultl;
rs = 0xBC0123AD;
rt = 0x01643721;
resulth = 0x05;
resultl = 0xE72F050;
__asm
("mthi %0, $ac1\n\t"
"mtlo %1, $ac1\n\t"
"dpsx.w.ph $ac1, %2, %3\n\t"
"mfhi %0, $ac1\n\t"
"mflo %1, $ac1\n\t"
: "+r"(ach), "+r"(acl)
: "r"(rs), "r"(rt)
);
assert(ach == resulth);
assert(acl == resultl);
return 0;
}