bcdctsq.: Decimal convert to signed quadword. It is possible to
convert packed decimal values to signed quadwords.
Signed-off-by: Jose Ricardo Ziviani <jos...@linux.vnet.ibm.com>
---
target-ppc/helper.h | 1 +
target-ppc/int_helper.c | 39 +++++++++++++++++++++++++++++++++++++
target-ppc/translate/vmx-impl.inc.c | 7 +++++++
3 files changed, 47 insertions(+)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 87f533c..503f257 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -383,6 +383,7 @@ DEF_HELPER_3(bcdctn, i32, avr, avr, i32)
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_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 db65a51..1025438 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -2922,6 +2922,45 @@ uint32_t helper_bcdcfsq(ppc_avr_t *r, ppc_avr_t *b,
uint32_t ps)
return cr;
}
+uint32_t helper_bcdctsq(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps)
+{
+ uint8_t i;
+ int cr = 0;
+ uint64_t hi = 0;
+ int sgnb = bcd_get_sgn(b);
+ int invalid = (sgnb == 0);
+ ppc_avr_t ret = { .u64 = { 0, 0 } };
+
+ ret.u64[LO_IDX] = bcd_get_digit(b, 31, &invalid);
+ for (i = 30; i > 0; i--) {
+ mulu64(&ret.u64[LO_IDX], &hi,
+ ret.u64[LO_IDX], 10ULL);
+
+ ret.u64[HI_IDX] = (ret.u64[HI_IDX]) ? ret.u64[HI_IDX] * 10 + hi : hi;
+ ret.u64[LO_IDX] += bcd_get_digit(b, i, &invalid);
+
+ if (unlikely(invalid)) {
+ break;
+ }
+ }
+
+ if (sgnb == -1) {
+ if (ret.s64[HI_IDX] > 0) {
+ ret.s64[HI_IDX] = -ret.s64[HI_IDX];
+ } else {
+ ret.s64[LO_IDX] = -ret.s64[LO_IDX];
+ }
+ }
+
+ cr = bcd_cmp_zero(b);
+
+ if (unlikely(invalid)) {
+ cr = 1 << CRF_SO;
+ }
+
+ return cr;
+}
+
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 36141e5..1579b58 100644
--- a/target-ppc/translate/vmx-impl.inc.c
+++ b/target-ppc/translate/vmx-impl.inc.c
@@ -990,10 +990,14 @@ GEN_BCD2(bcdctn)
GEN_BCD2(bcdcfz)
GEN_BCD2(bcdctz)
GEN_BCD2(bcdcfsq)
+GEN_BCD2(bcdctsq)
static void gen_xpnd04_1(DisasContext *ctx)
{
switch (opc4(ctx->opcode)) {
+ case 0:
+ gen_bcdctsq(ctx);
+ break;
case 2:
gen_bcdcfsq(ctx);
break;
@@ -1018,6 +1022,9 @@ static void gen_xpnd04_1(DisasContext *ctx)
static void gen_xpnd04_2(DisasContext *ctx)
{
switch (opc4(ctx->opcode)) {
+ case 0:
+ gen_bcdctsq(ctx);
+ break;
case 2:
gen_bcdcfsq(ctx);
break;
--
2.7.4
