diff mbox series

[v3,04/11] target/arm: Implement FCVT (scalar, fixed-point) for fp16

Message ID 20180511024454.31679-5-richard.henderson@linaro.org
State New
Headers show
Series target/arm: Fixups for ARM_FEATURE_V8_FP16 | expand

Commit Message

Richard Henderson May 11, 2018, 2:44 a.m. UTC 
Cc: qemu-stable@nongnu.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 target/arm/translate-a64.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

-- 
2.17.0
diff mbox series

Patch

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 14f35e878a..eb69a548e1 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -5491,6 +5491,20 @@  static void disas_fp_imm(DisasContext *s, uint32_t insn)
         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;
+    }
+
     if (!fp_access_check(s)) {
         return;
     }
@@ -5697,8 +5711,7 @@  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;
     }