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target/arm: Decode aa32 armv8.1 two reg and a scalar

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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>
This commit is contained in:
Richard Henderson 2018-03-02 10:45:42 +00:00 committed by Peter Maydell
parent 36a719348a
commit 61adacc8f5
1 changed files with 42 additions and 4 deletions
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46
target/arm/translate.c
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@ -76,6 +76,10 @@ static const char *regnames[] =
{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "pc" }; "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. */ /* initialize TCG globals. */
void arm_translate_init(void) 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); neon_store_reg64(cpu_V0, rd + pass);
} }
break; break;
default: /* 14 and 15 are RESERVED */ case 14: /* VQRDMLAH scalar */
return 1; 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:
g_assert_not_reached();
} }
} }
} else { /* size == 3 */ } else { /* size == 3 */