From 2752728016bef06e7c9cfb961019272859beeca4 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Tue, 15 May 2018 14:58:43 +0100 Subject: [PATCH] target/arm: Implement FCVT (scalar, fixed-point) for fp16 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: qemu-stable@nongnu.org Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson Tested-by: Alex Bennée Message-id: 20180512003217.9105-5-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/translate-a64.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 93fb15d185..d0ed125442 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -5697,8 +5697,21 @@ static void disas_fp_fixed_conv(DisasContext *s, uint32_t insn) bool sf = extract32(insn, 31, 1); bool itof; - if (sbit || (type > 1) - || (!sf && scale < 32)) { + if (sbit || (!sf && scale < 32)) { + unallocated_encoding(s); + return; + } + + switch (type) { + case 0: /* float32 */ + case 1: /* float64 */ + break; + case 3: /* float16 */ + if (arm_dc_feature(s, ARM_FEATURE_V8_FP16)) { + break; + } + /* fallthru */ + default: unallocated_encoding(s); return; }