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| author | Richard Henderson <richard.henderson@linaro.org> | 2018-03-02 10:45:42 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-03-02 11:03:45 +0000 |
| commit | 61adacc8f589539ac6b25cfcbd6e099357188974 (patch) | |
| tree | ff987134505f05a8bd7092238bd67368c1b80b3d /target/arm | |
| parent | 36a719348a9744d17c6ef6bac01bcb5fcd279753 (diff) | |
| download | qemu-61adacc8f589539ac6b25cfcbd6e099357188974.zip | |
target/arm: Decode aa32 armv8.1 two reg and a scalar
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180228193125.20577-9-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm')
| -rw-r--r-- | target/arm/translate.c | 42 |
1 files changed, 40 insertions, 2 deletions
diff --git a/target/arm/translate.c b/target/arm/translate.c index 05fa6a53f9..9169b6b367 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -76,6 +76,10 @@ static const char *regnames[] = { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "pc" }; +/* Function prototypes for gen_ functions calling Neon helpers. */ +typedef void NeonGenThreeOpEnvFn(TCGv_i32, TCGv_env, TCGv_i32, + TCGv_i32, TCGv_i32); + /* initialize TCG globals. */ void arm_translate_init(void) { @@ -6985,11 +6989,45 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn) } neon_store_reg64(cpu_V0, rd + pass); } + break; + case 14: /* VQRDMLAH scalar */ + case 15: /* VQRDMLSH scalar */ + { + NeonGenThreeOpEnvFn *fn; + if (!arm_dc_feature(s, ARM_FEATURE_V8_RDM)) { + return 1; + } + if (u && ((rd | rn) & 1)) { + return 1; + } + if (op == 14) { + if (size == 1) { + fn = gen_helper_neon_qrdmlah_s16; + } else { + fn = gen_helper_neon_qrdmlah_s32; + } + } else { + if (size == 1) { + fn = gen_helper_neon_qrdmlsh_s16; + } else { + fn = gen_helper_neon_qrdmlsh_s32; + } + } + tmp2 = neon_get_scalar(size, rm); + for (pass = 0; pass < (u ? 4 : 2); pass++) { + tmp = neon_load_reg(rn, pass); + tmp3 = neon_load_reg(rd, pass); + fn(tmp, cpu_env, tmp, tmp2, tmp3); + tcg_temp_free_i32(tmp3); + neon_store_reg(rd, pass, tmp); + } + tcg_temp_free_i32(tmp2); + } break; - default: /* 14 and 15 are RESERVED */ - return 1; + default: + g_assert_not_reached(); } } } else { /* size == 3 */ |