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| author | Chen Gang <gang.chen.5i5j@gmail.com> | 2015-10-04 19:01:27 +0800 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2015-10-07 20:03:16 +1100 |
| commit | a419e22d703667211521d4257df294047c13eca3 (patch) | |
| tree | 6581378e6ead49c265d387f1b2e4fc12c598b8eb | |
| parent | aaf893a6ad6c7c0a986638ba599000e13f9f4182 (diff) | |
| download | qemu-a419e22d703667211521d4257df294047c13eca3.zip qemu-a419e22d703667211521d4257df294047c13eca3.tar.gz qemu-a419e22d703667211521d4257df294047c13eca3.tar.bz2 | |
target-tilegx: Implement v2mults instruction
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1443956491-26850-3-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
| -rw-r--r-- | target-tilegx/helper.h | 1 | ||||
| -rw-r--r-- | target-tilegx/simd_helper.c | 15 | ||||
| -rw-r--r-- | target-tilegx/translate.c | 4 |
3 files changed, 20 insertions, 0 deletions
diff --git a/target-tilegx/helper.h b/target-tilegx/helper.h index c58ee20..bbcc476 100644 --- a/target-tilegx/helper.h +++ b/target-tilegx/helper.h @@ -16,6 +16,7 @@ DEF_HELPER_FLAGS_2(v2int_h, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_FLAGS_2(v2int_l, TCG_CALL_NO_RWG_SE, i64, i64, i64) DEF_HELPER_FLAGS_2(v1multu, TCG_CALL_NO_RWG_SE, i64, i64, i64) +DEF_HELPER_FLAGS_2(v2mults, 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 d294671..6d7bb5c 100644 --- a/target-tilegx/simd_helper.c +++ b/target-tilegx/simd_helper.c @@ -41,6 +41,21 @@ uint64_t helper_v1multu(uint64_t a, uint64_t b) return r; } +uint64_t helper_v2mults(uint64_t a, uint64_t b) +{ + uint64_t r = 0; + int i; + + /* While the instruction talks about signed inputs, with a + truncated result the sign of the inputs doesn't matter. */ + for (i = 0; i < 64; i += 16) { + unsigned ae = extract64(a, i, 16); + unsigned be = extract64(b, i, 16); + r = deposit64(r, i, 16, 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 034cbc2..eb2d0b1 100644 --- a/target-tilegx/translate.c +++ b/target-tilegx/translate.c @@ -1355,7 +1355,11 @@ static TileExcp gen_rrr_opcode(DisasContext *dc, unsigned opext, case OE_RRR(V2MNZ, 0, X1): case OE_RRR(V2MULFSC, 0, X0): case OE_RRR(V2MULS, 0, X0): + return TILEGX_EXCP_OPCODE_UNIMPLEMENTED; case OE_RRR(V2MULTS, 0, X0): + gen_helper_v2mults(tdest, tsrca, tsrcb); + mnemonic = "v2mults"; + break; case OE_RRR(V2MZ, 0, X0): case OE_RRR(V2MZ, 0, X1): case OE_RRR(V2PACKH, 0, X0): |