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authorJose Ricardo Ziviani <joserz@linux.vnet.ibm.com>2016-11-25 01:53:32 -0200
committerDavid Gibson <david@gibson.dropbear.id.au>2017-01-31 10:10:13 +1100
commitc3025c3b0aa6baea66be11fa97c5ecbcbff09677 (patch)
tree2c6ba597adb8be91e5f4e77e4bb4dc3fce7b26dd
parentc85bc7dd90219c2b0ebe278187f5efa7e465687c (diff)
target-ppc: Implement bcdcpsgn. instruction
bcdcpsgn.: Decimal copy sign. Given two registers vra and vrb, it copies the vra value with vrb sign to the result register vrt. Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
-rw-r--r--target/ppc/helper.h1
-rw-r--r--target/ppc/int_helper.c23
-rw-r--r--target/ppc/translate/vmx-impl.inc.c3
-rw-r--r--target/ppc/translate/vmx-ops.inc.c2
4 files changed, 28 insertions, 1 deletions
diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index daf5a6e973..7957633961 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -379,6 +379,7 @@ DEF_HELPER_3(bcdcfz, i32, avr, avr, i32)
DEF_HELPER_3(bcdctz, i32, avr, avr, i32)
DEF_HELPER_3(bcdcfsq, i32, avr, avr, i32)
DEF_HELPER_3(bcdctsq, i32, avr, avr, i32)
+DEF_HELPER_4(bcdcpsgn, i32, avr, avr, avr, i32)
DEF_HELPER_2(xsadddp, void, env, i32)
DEF_HELPER_2(xssubdp, void, env, i32)
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index fa7cfddab2..61762eebec 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -2920,6 +2920,29 @@ uint32_t helper_bcdctsq(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps)
return cr;
}
+uint32_t helper_bcdcpsgn(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t ps)
+{
+ int i;
+ int invalid = 0;
+
+ if (bcd_get_sgn(a) == 0 || bcd_get_sgn(b) == 0) {
+ return CRF_SO;
+ }
+
+ *r = *a;
+ bcd_put_digit(r, b->u8[BCD_DIG_BYTE(0)] & 0xF, 0);
+
+ for (i = 1; i < 32; i++) {
+ bcd_get_digit(a, i, &invalid);
+ bcd_get_digit(b, i, &invalid);
+ if (unlikely(invalid)) {
+ return CRF_SO;
+ }
+ }
+
+ return bcd_cmp_zero(r);
+}
+
void helper_vsbox(ppc_avr_t *r, ppc_avr_t *a)
{
int i;
diff --git a/target/ppc/translate/vmx-impl.inc.c b/target/ppc/translate/vmx-impl.inc.c
index 1579b58146..c14b6662fd 100644
--- a/target/ppc/translate/vmx-impl.inc.c
+++ b/target/ppc/translate/vmx-impl.inc.c
@@ -991,6 +991,7 @@ GEN_BCD2(bcdcfz)
GEN_BCD2(bcdctz)
GEN_BCD2(bcdcfsq)
GEN_BCD2(bcdctsq)
+GEN_BCD(bcdcpsgn);
static void gen_xpnd04_1(DisasContext *ctx)
{
@@ -1056,6 +1057,8 @@ GEN_VXFORM_DUAL(vsubuhm, PPC_ALTIVEC, PPC_NONE, \
bcdsub, PPC_NONE, PPC2_ALTIVEC_207)
GEN_VXFORM_DUAL(vsubuhs, PPC_ALTIVEC, PPC_NONE, \
bcdsub, PPC_NONE, PPC2_ALTIVEC_207)
+GEN_VXFORM_DUAL(vaddshs, PPC_ALTIVEC, PPC_NONE, \
+ bcdcpsgn, PPC_NONE, PPC2_ISA300)
static void gen_vsbox(DisasContext *ctx)
{
diff --git a/target/ppc/translate/vmx-ops.inc.c b/target/ppc/translate/vmx-ops.inc.c
index f02b3bed50..70d7d2b6ce 100644
--- a/target/ppc/translate/vmx-ops.inc.c
+++ b/target/ppc/translate/vmx-ops.inc.c
@@ -131,7 +131,7 @@ GEN_VXFORM_DUAL(vaddubs, vmul10uq, 0, 8, PPC_ALTIVEC, PPC_NONE),
GEN_VXFORM_DUAL(vadduhs, vmul10euq, 0, 9, PPC_ALTIVEC, PPC_NONE),
GEN_VXFORM(vadduws, 0, 10),
GEN_VXFORM(vaddsbs, 0, 12),
-GEN_VXFORM(vaddshs, 0, 13),
+GEN_VXFORM_DUAL(vaddshs, bcdcpsgn, 0, 13, PPC_ALTIVEC, PPC_NONE),
GEN_VXFORM(vaddsws, 0, 14),
GEN_VXFORM_DUAL(vsububs, bcdadd, 0, 24, PPC_ALTIVEC, PPC_NONE),
GEN_VXFORM_DUAL(vsubuhs, bcdsub, 0, 25, PPC_ALTIVEC, PPC_NONE),