From: Vivek Andrew Sha <vivekandrew...@gmail.com>
Adds Vector Shift Right Variable instruction.
Signed-off-by: Vivek Andrew Sha <vivekandrew...@gmail.com>
Signed-off-by: Nikunj A Dadhania <nik...@linux.vnet.ibm.com>
---
target-ppc/helper.h | 1 +
target-ppc/int_helper.c | 17 +++++++++++++++++
target-ppc/translate.c | 2 ++
3 files changed, 20 insertions(+)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 9703f85..8eada2f 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -211,6 +211,7 @@ DEF_HELPER_3(vslw, void, avr, avr, avr)
DEF_HELPER_3(vsld, void, avr, avr, avr)
DEF_HELPER_3(vslo, void, avr, avr, avr)
DEF_HELPER_3(vsro, void, avr, avr, avr)
+DEF_HELPER_3(vsrv, void, avr, avr, avr)
DEF_HELPER_3(vslv, void, avr, avr, avr)
DEF_HELPER_3(vaddcuw, void, avr, avr, avr)
DEF_HELPER_3(vsubcuw, void, avr, avr, avr)
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index 412398f..f4776f0 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -1722,6 +1722,23 @@ void helper_vslv(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t
*b)
}
}
+void helper_vsrv(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
+{
+ int i;
+ unsigned int shift, bytes, src[ARRAY_SIZE(r->u8) + 1];
+
+ src[0] = 0;
+ for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
+ src[i + 1] = a->u8[i];
+ }
+
+ for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
+ shift = b->u8[i] & 0x7; /* extract shift value */
+ bytes = (src[i] << 8) + src[i + 1]; /* extract adjacent bytes */
+ r->u8[i] = (bytes >> shift) & 0xFF; /* shift and store result */
+ }
+}
+
void helper_vsldoi(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift)
{
int sh = shift & 0xf;
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 473f21a..3382cd0 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -7457,6 +7457,7 @@ GEN_VXFORM(vsraw, 2, 14);
GEN_VXFORM(vsrad, 2, 15);
GEN_VXFORM(vslo, 6, 16);
GEN_VXFORM(vsro, 6, 17);
+GEN_VXFORM(vsrv, 2, 28);
GEN_VXFORM(vslv, 2, 29);
GEN_VXFORM(vaddcuw, 0, 6);
GEN_VXFORM(vsubcuw, 0, 22);
@@ -10943,6 +10944,7 @@ GEN_VXFORM(vsraw, 2, 14),
GEN_VXFORM_207(vsrad, 2, 15),
GEN_VXFORM(vslo, 6, 16),
GEN_VXFORM(vsro, 6, 17),
+GEN_VXFORM(vsrv, 2, 28),
GEN_VXFORM(vslv, 2, 29),
GEN_VXFORM(vaddcuw, 0, 6),
GEN_VXFORM(vsubcuw, 0, 22),
--
2.7.4
