OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

target/ppc: Fix vslv and vsrv 

vslv and vsrv are broken on little endian, we append 00 to the
high byte not the low byte. Fix it by using the VsrB() accessor.

Signed-off-by: Anton Blanchard <anton@ozlabs.org>
Message-Id: <20190507004811.29968-6-anton@ozlabs.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Anton Blanchard 2019-05-07 10:48:08 +10:00 committed by David Gibson
parent d47a751ada
commit 63be02fc69
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
target/ppc/int_helper.c
View File

@ -1815,10 +1815,10 @@ void helper_vslv(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
size = ARRAY_SIZE(r->u8);
for (i = 0; i < size; i++) {
shift = b->u8[i] & 0x7; /* extract shift value */
bytes = (a->u8[i] << 8) + /* extract adjacent bytes */
(((i + 1) < size) ? a->u8[i + 1] : 0);
r->u8[i] = (bytes << shift) >> 8; /* shift and store result */
shift = b->VsrB(i) & 0x7; /* extract shift value */
bytes = (a->VsrB(i) << 8) + /* extract adjacent bytes */
(((i + 1) < size) ? a->VsrB(i + 1) : 0);
r->VsrB(i) = (bytes << shift) >> 8; /* shift and store result */
}
}
@ -1833,10 +1833,10 @@ void helper_vsrv(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
* order will guarantee that computed result is not fed back.
*/
for (i = ARRAY_SIZE(r->u8) - 1; i >= 0; i--) {
shift = b->u8[i] & 0x7; /* extract shift value */
bytes = ((i ? a->u8[i - 1] : 0) << 8) + a->u8[i];
shift = b->VsrB(i) & 0x7; /* extract shift value */
bytes = ((i ? a->VsrB(i - 1) : 0) << 8) + a->VsrB(i);
/* extract adjacent bytes */
r->u8[i] = (bytes >> shift) & 0xFF; /* shift and store result */
r->VsrB(i) = (bytes >> shift) & 0xFF; /* shift and store result */
}
}