From: Chen Gang <gang.chen.5...@gmail.com>
Only according to v1shrs implementation.
Signed-off-by: Chen Gang <gang.chen.5...@gmail.com>
Reviewed-by: Richard Henderson <r...@twiddle.net>
---
target-tilegx/helper.h | 2 ++
target-tilegx/simd_helper.c | 13 +++++++++++++
target-tilegx/translate.c | 4 ++++
3 files changed, 19 insertions(+)
diff --git a/target-tilegx/helper.h b/target-tilegx/helper.h
index 6d98f3a..90e558d 100644
--- a/target-tilegx/helper.h
+++ b/target-tilegx/helper.h
@@ -16,3 +16,5 @@ DEF_HELPER_FLAGS_2(v1add, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(v1sub, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(v2add, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(v2sub, TCG_CALL_NO_RWG_SE, i64, i64, i64)
+
+DEF_HELPER_FLAGS_2(v1multu, TCG_CALL_NO_RWG_SE, i64, i64, i64)
diff --git a/target-tilegx/simd_helper.c b/target-tilegx/simd_helper.c
index 00265fe..b98573e 100644
--- a/target-tilegx/simd_helper.c
+++ b/target-tilegx/simd_helper.c
@@ -107,3 +107,16 @@ uint64_t helper_v2shrs(uint64_t a, uint64_t b)
}
return r;
}
+
+uint64_t helper_v1multu(uint64_t a, uint64_t b)
+{
+ uint64_t r = 0;
+ int i;
+
+ for (i = 0; i < 64; i += 8) {
+ uint64_t ae = (uint8_t)(a >> i);
+ uint64_t be = (uint8_t)(b >> i);
+ r |= ((ae * be) & 0xff) << i;
+ }
+ return r;
+}
diff --git a/target-tilegx/translate.c b/target-tilegx/translate.c
index 297de5c..a9fc4ce 100644
--- a/target-tilegx/translate.c
+++ b/target-tilegx/translate.c
@@ -1113,7 +1113,11 @@ static TileExcp gen_rrr_opcode(DisasContext *dc,
unsigned opext,
case OE_RRR(V1MINU, 0, X1):
case OE_RRR(V1MNZ, 0, X0):
case OE_RRR(V1MNZ, 0, X1):
+ return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
case OE_RRR(V1MULTU, 0, X0):
+ gen_helper_v1multu(tdest, tsrca, tsrcb);
+ mnemonic = "v1multu";
+ break;
case OE_RRR(V1MULUS, 0, X0):
case OE_RRR(V1MULU, 0, X0):
case OE_RRR(V1MZ, 0, X0):
--
1.9.3
