>From 298aa5e9be6373fea7b30236bd3e90352c6e693a Mon Sep 17 00:00:00 2001 From: Chen Gang <gang.chen.5...@gmail.com> Date: Sat, 3 Oct 2015 10:42:01 +0800 Subject: [PATCH v2] target-tilegx: Implement v2mults instruction
Just according to v1multu instruction implementation. Signed-off-by: Chen Gang <gang.chen.5...@gmail.com> --- target-tilegx/helper.h | 1 + target-tilegx/simd_helper.c | 13 +++++++++++++ target-tilegx/translate.c | 4 ++++ 3 files changed, 18 insertions(+) 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 6fa6318..4f226eb 100644 --- a/target-tilegx/simd_helper.c +++ b/target-tilegx/simd_helper.c @@ -41,6 +41,19 @@ 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; + + for (i = 0; i < 64; i += 16) { + int64_t ae = (int16_t)(a>> i); + int64_t be = (int16_t)(b>> i); + r |= ((ae * be) & 0xffff) << i; + } + 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): -- 1.9.3
0003-target-tilegx-Implement-v2mults-instruction.patch
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