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[Qemu-devel] [PULL 07/16] target/arm: Implement FCVT (scalar, fixed-poin
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PULL 07/16] target/arm: Implement FCVT (scalar, fixed-point) for fp16 |
Date: |
Tue, 15 May 2018 15:06:58 +0100 |
From: Richard Henderson <address@hidden>
Cc: address@hidden
Reviewed-by: Alex Bennée <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
Tested-by: Alex Bennée <address@hidden>
Message-id: address@hidden
Signed-off-by: Peter Maydell <address@hidden>
---
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;
}
--
2.17.0
- [Qemu-devel] [PULL 00/16] target-arm queue, Peter Maydell, 2018/05/15
- [Qemu-devel] [PULL 04/16] target/arm: Implement FMOV (general) for fp16, Peter Maydell, 2018/05/15
- [Qemu-devel] [PULL 07/16] target/arm: Implement FCVT (scalar, fixed-point) for fp16,
Peter Maydell <=
- [Qemu-devel] [PULL 06/16] target/arm: Implement FCVT (scalar, integer) for fp16, Peter Maydell, 2018/05/15
- [Qemu-devel] [PULL 03/16] target/arm: Fix fp_status_f16 tininess before rounding, Peter Maydell, 2018/05/15
- [Qemu-devel] [PULL 12/16] target/arm: Implement FCSEL for fp16, Peter Maydell, 2018/05/15
- [Qemu-devel] [PULL 01/16] fpu/softfloat: int_to_float ensure r fully initialised, Peter Maydell, 2018/05/15
- [Qemu-devel] [PULL 11/16] target/arm: Implement FCMP for fp16, Peter Maydell, 2018/05/15
- [Qemu-devel] [PULL 10/16] target/arm: Implement FP data-processing (3 source) for fp16, Peter Maydell, 2018/05/15
- [Qemu-devel] [PULL 08/16] target/arm: Introduce and use read_fp_hreg, Peter Maydell, 2018/05/15
- [Qemu-devel] [PULL 09/16] target/arm: Implement FP data-processing (2 source) for fp16, Peter Maydell, 2018/05/15
- [Qemu-devel] [PULL 02/16] fpu/softfloat: Don't set Invalid for float-to-int(MAXINT), Peter Maydell, 2018/05/15
- [Qemu-devel] [PULL 05/16] target/arm: Early exit after unallocated_encoding in disas_fp_int_conv, Peter Maydell, 2018/05/15