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authorChen Gang <gang.chen.5i5j@gmail.com>2015-09-22 06:26:54 +0800
committerRichard Henderson <rth@twiddle.net>2015-10-07 20:03:14 +1100
commit38c949ffe7497b1d833bca5f70b22c87df9bd567 (patch)
tree55f32f691e9918eaa256903fa40a48af3354e122
parentc6876d7e1c3ff04a9b9f751f6260bf427ab8cf1a (diff)
downloadqemu-arm-38c949ffe7497b1d833bca5f70b22c87df9bd567.tar.gz
target-tilegx: Implement v1multu instruction
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Message-Id: <1442874414-3578-1-git-send-email-gang.chen.5i5j@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
-rw-r--r--target-tilegx/helper.h1
-rw-r--r--target-tilegx/simd_helper.c13
-rw-r--r--target-tilegx/translate.c4
3 files changed, 18 insertions, 0 deletions
diff --git a/target-tilegx/helper.h b/target-tilegx/helper.h
index b253722a72..d380d3ba59 100644
--- a/target-tilegx/helper.h
+++ b/target-tilegx/helper.h
@@ -5,6 +5,7 @@ DEF_HELPER_FLAGS_1(pcnt, TCG_CALL_NO_RWG_SE, i64, i64)
DEF_HELPER_FLAGS_1(revbits, TCG_CALL_NO_RWG_SE, i64, i64)
DEF_HELPER_FLAGS_3(shufflebytes, TCG_CALL_NO_RWG_SE, i64, i64, i64, i64)
+DEF_HELPER_FLAGS_2(v1multu, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(v1shl, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(v1shru, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(v1shrs, TCG_CALL_NO_RWG_SE, i64, i64, i64)
diff --git a/target-tilegx/simd_helper.c b/target-tilegx/simd_helper.c
index 1c59a92216..2cff43c29c 100644
--- a/target-tilegx/simd_helper.c
+++ b/target-tilegx/simd_helper.c
@@ -28,6 +28,19 @@
#define V2(X) (((X) & 0xffff) * 0x0001000100010001ull)
+uint64_t helper_v1multu(uint64_t a, uint64_t b)
+{
+ uint64_t r = 0;
+ int i;
+
+ for (i = 0; i < 64; i += 8) {
+ unsigned ae = extract64(a, i, 8);
+ unsigned be = extract64(b, i, 8);
+ r = deposit64(r, i, 8, ae * be);
+ }
+ return r;
+}
+
uint64_t helper_v1shl(uint64_t a, uint64_t b)
{
uint64_t m;
diff --git a/target-tilegx/translate.c b/target-tilegx/translate.c
index 14ebd07515..6bfb1af2c8 100644
--- a/target-tilegx/translate.c
+++ b/target-tilegx/translate.c
@@ -1155,7 +1155,11 @@ 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):