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| author | Peter Maydell <peter.maydell@linaro.org> | 2014-06-09 15:43:26 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2014-06-09 16:06:12 +0100 |
| commit | f6fe04d566f1a1e3219b501487cd2d2d00d723a5 (patch) | |
| tree | 28df87da569a6b976c702d5cd1433f92a89411bb /target-arm | |
| parent | be56f04eeacc22634a3bd709fdbda9873e8f55af (diff) | |
| download | qemu-f6fe04d566f1a1e3219b501487cd2d2d00d723a5.tar.gz | |
target-arm: A64: Implement two-register SHA instructions
Implement the two-register SHA instruction group from the optional
Crypto Extensions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1401458125-27977-10-git-send-email-peter.maydell@linaro.org
Diffstat (limited to 'target-arm')
| -rw-r--r-- | target-arm/translate-a64.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c index 82d46fafe5..63ad787e9f 100644 --- a/target-arm/translate-a64.c +++ b/target-arm/translate-a64.c @@ -85,6 +85,7 @@ typedef void NeonGenWidenFn(TCGv_i64, TCGv_i32); typedef void NeonGenTwoSingleOPFn(TCGv_i32, TCGv_i32, TCGv_i32, TCGv_ptr); typedef void NeonGenTwoDoubleOPFn(TCGv_i64, TCGv_i64, TCGv_i64, TCGv_ptr); typedef void NeonGenOneOpFn(TCGv_i64, TCGv_i64); +typedef void CryptoTwoOpEnvFn(TCGv_ptr, TCGv_i32, TCGv_i32); typedef void CryptoThreeOpEnvFn(TCGv_ptr, TCGv_i32, TCGv_i32, TCGv_i32); /* initialize TCG globals. */ @@ -10677,7 +10678,49 @@ static void disas_crypto_three_reg_sha(DisasContext *s, uint32_t insn) */ static void disas_crypto_two_reg_sha(DisasContext *s, uint32_t insn) { - unsupported_encoding(s, insn); + int size = extract32(insn, 22, 2); + int opcode = extract32(insn, 12, 5); + int rn = extract32(insn, 5, 5); + int rd = extract32(insn, 0, 5); + CryptoTwoOpEnvFn *genfn; + int feature; + TCGv_i32 tcg_rd_regno, tcg_rn_regno; + + if (size != 0) { + unallocated_encoding(s); + return; + } + + switch (opcode) { + case 0: /* SHA1H */ + feature = ARM_FEATURE_V8_SHA1; + genfn = gen_helper_crypto_sha1h; + break; + case 1: /* SHA1SU1 */ + feature = ARM_FEATURE_V8_SHA1; + genfn = gen_helper_crypto_sha1su1; + break; + case 2: /* SHA256SU0 */ + feature = ARM_FEATURE_V8_SHA256; + genfn = gen_helper_crypto_sha256su0; + break; + default: + unallocated_encoding(s); + return; + } + + if (!arm_dc_feature(s, feature)) { + unallocated_encoding(s); + return; + } + + tcg_rd_regno = tcg_const_i32(rd << 1); + tcg_rn_regno = tcg_const_i32(rn << 1); + + genfn(cpu_env, tcg_rd_regno, tcg_rn_regno); + + tcg_temp_free_i32(tcg_rd_regno); + tcg_temp_free_i32(tcg_rn_regno); } /* C3.6 Data processing - SIMD, inc Crypto |