From: Sandipan Das <sandipandas1...@gmail.com>
Add ISA3.0 Count trailing zeros double word
Signed-off-by: Sandipan Das <sandipandas1...@gmail.com>
[ added ISA300 flag ]
Signed-off-by: Nikunj A Dadhania <nik...@linux.vnet.ibm.com>
Reviewed-by: Richard Henderson <r...@twiddle.net>
---
target-ppc/helper.h | 1 +
target-ppc/int_helper.c | 5 +++++
target-ppc/translate.c | 10 ++++++++++
3 files changed, 16 insertions(+)
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 1f5cfd0..0c29c01 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -44,6 +44,7 @@ DEF_HELPER_FLAGS_2(cmpb, TCG_CALL_NO_RWG_SE, tl, tl, tl)
DEF_HELPER_3(sraw, tl, env, tl, tl)
#if defined(TARGET_PPC64)
DEF_HELPER_FLAGS_1(cntlzd, TCG_CALL_NO_RWG_SE, tl, tl)
+DEF_HELPER_FLAGS_1(cnttzd, TCG_CALL_NO_RWG_SE, tl, tl)
DEF_HELPER_FLAGS_1(popcntd, TCG_CALL_NO_RWG_SE, tl, tl)
DEF_HELPER_FLAGS_2(bpermd, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_3(srad, tl, env, tl, tl)
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index 7445376..93e8dfa 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -150,6 +150,11 @@ target_ulong helper_cntlzd(target_ulong t)
{
return clz64(t);
}
+
+target_ulong helper_cnttzd(target_ulong t)
+{
+ return ctz64(t);
+}
#endif
#if defined(TARGET_PPC64)
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 6bf523d..c056320 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -1824,6 +1824,15 @@ static void gen_cntlzd(DisasContext *ctx)
if (unlikely(Rc(ctx->opcode) != 0))
gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]);
}
+
+/* cnttzd */
+static void gen_cnttzd(DisasContext *ctx)
+{
+ gen_helper_cnttzd(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rS(ctx->opcode)]);
+ if (unlikely(Rc(ctx->opcode) != 0)) {
+ gen_set_Rc0(ctx, cpu_gpr[rA(ctx->opcode)]);
+ }
+}
#endif
/*** Integer rotate ***/
@@ -10061,6 +10070,7 @@ GEN_HANDLER_E(prtyw, 0x1F, 0x1A, 0x04, 0x0000F801,
PPC_NONE, PPC2_ISA205),
#if defined(TARGET_PPC64)
GEN_HANDLER(popcntd, 0x1F, 0x1A, 0x0F, 0x0000F801, PPC_POPCNTWD),
GEN_HANDLER(cntlzd, 0x1F, 0x1A, 0x01, 0x00000000, PPC_64B),
+GEN_HANDLER_E(cnttzd, 0x1F, 0x1A, 0x11, 0x00000000, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(prtyd, 0x1F, 0x1A, 0x05, 0x0000F801, PPC_NONE, PPC2_ISA205),
GEN_HANDLER_E(bpermd, 0x1F, 0x1C, 0x07, 0x00000001, PPC_NONE,
PPC2_PERM_ISA206),
#endif
--
2.7.4
