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[PATCH v2 for-10.0 42/54] target/m68k: Set default NaN pattern explicitl
From: |
Peter Maydell |
Subject: |
[PATCH v2 for-10.0 42/54] target/m68k: Set default NaN pattern explicitly |
Date: |
Mon, 2 Dec 2024 13:13:35 +0000 |
Set the default NaN pattern explicitly for m68k.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
target/m68k/cpu.c | 2 ++
fpu/softfloat-specialize.c.inc | 2 +-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c
index 13b76e22488..9de8ce67078 100644
--- a/target/m68k/cpu.c
+++ b/target/m68k/cpu.c
@@ -105,6 +105,8 @@ static void m68k_cpu_reset_hold(Object *obj, ResetType type)
* preceding paragraph for nonsignaling NaNs.
*/
set_float_2nan_prop_rule(float_2nan_prop_ab, &env->fp_status);
+ /* Default NaN: sign bit clear, all frac bits set */
+ set_float_default_nan_pattern(0b01111111, &env->fp_status);
nan = floatx80_default_nan(&env->fp_status);
for (i = 0; i < 8; i++) {
diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc
index b5ec1944d15..ecb7a52ae7c 100644
--- a/fpu/softfloat-specialize.c.inc
+++ b/fpu/softfloat-specialize.c.inc
@@ -136,7 +136,7 @@ static void parts64_default_nan(FloatParts64 *p,
float_status *status)
uint8_t dnan_pattern = status->default_nan_pattern;
if (dnan_pattern == 0) {
-#if defined(TARGET_SPARC) || defined(TARGET_M68K)
+#if defined(TARGET_SPARC)
/* Sign bit clear, all frac bits set */
dnan_pattern = 0b01111111;
#elif defined(TARGET_HEXAGON)
--
2.34.1
- [PATCH v2 for-10.0 13/54] target/hppa: Set FloatInfZeroNaNRule explicitly, (continued)
- [PATCH v2 for-10.0 13/54] target/hppa: Set FloatInfZeroNaNRule explicitly, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 16/54] tests/fp: Explicitly set 3-NaN propagation rule, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 48/54] target/s390x: Set default NaN pattern explicitly, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 07/54] target/ppc: Set FloatInfZeroNaNRule explicitly, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 31/54] target/m68k: Init local float_status from env fp_status in gdb get/set reg, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 39/54] target/alpha: Set default NaN pattern explicitly, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 18/54] target/loongarch: Set Float3NaNPropRule explicitly, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 53/54] target/tricore: Set default NaN pattern explicitly, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 21/54] target/sparc: Set Float3NaNPropRule explicitly, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 12/54] target/loongarch: Set FloatInfZeroNaNRule explicitly, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 42/54] target/m68k: Set default NaN pattern explicitly,
Peter Maydell <=
- [PATCH v2 for-10.0 24/54] target/i386: Set Float3NaNPropRule explicitly, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 51/54] target/hexagon: Set default NaN pattern explicitly, Peter Maydell, 2024/12/02
- [PATCH v2 for-10.0 54/54] fpu: Remove default handling for dnan_pattern, Peter Maydell, 2024/12/02