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| author | Peter Maydell <peter.maydell@linaro.org> | 2024-11-05 10:09:54 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2024-11-05 10:09:54 +0000 |
| commit | 5aaab56a1ab63d7604308be4e746b8804ccff7da (patch) | |
| tree | 0d026dbc26fc81a04c16c68b706c85deaf1a400d | |
| parent | 841f9d74751f8615dbc6215504db7abbc0ebff5e (diff) | |
| download | qemu-5aaab56a1ab63d7604308be4e746b8804ccff7da.zip qemu-5aaab56a1ab63d7604308be4e746b8804ccff7da.tar.gz qemu-5aaab56a1ab63d7604308be4e746b8804ccff7da.tar.bz2 | |
target/ppc: Explicitly set 2-NaN propagation rule
Set the 2-NaN propagation rule explicitly in env->fp_status
and env->vec_status.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241025141254.2141506-9-peter.maydell@linaro.org
| -rw-r--r-- | fpu/softfloat-specialize.c.inc | 10 | ||||
| -rw-r--r-- | target/ppc/cpu_init.c | 8 |
2 files changed, 10 insertions, 8 deletions
diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc index a0c740e..8e3124c 100644 --- a/fpu/softfloat-specialize.c.inc +++ b/fpu/softfloat-specialize.c.inc @@ -404,15 +404,9 @@ static int pickNaN(FloatClass a_cls, FloatClass b_cls, || defined(TARGET_RISCV) || defined(TARGET_SH4) \ || defined(TARGET_TRICORE) || defined(TARGET_ARM) || defined(TARGET_MIPS) \ || defined(TARGET_LOONGARCH64) || defined(TARGET_HPPA) \ - || defined(TARGET_S390X) + || defined(TARGET_S390X) || defined(TARGET_PPC) g_assert_not_reached(); -#elif defined(TARGET_PPC) || defined(TARGET_M68K) - /* - * PowerPC propagation rules: - * 1. A if it sNaN or qNaN - * 2. B if it sNaN or qNaN - * A signaling NaN is always silenced before returning it. - */ +#elif defined(TARGET_M68K) /* * M68000 FAMILY PROGRAMMER'S REFERENCE MANUAL * 3.4 FLOATING-POINT INSTRUCTION DETAILS diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c index 23881d0..5c9dcd1 100644 --- a/target/ppc/cpu_init.c +++ b/target/ppc/cpu_init.c @@ -7326,6 +7326,14 @@ static void ppc_cpu_reset_hold(Object *obj, ResetType type) /* tininess for underflow is detected before rounding */ set_float_detect_tininess(float_tininess_before_rounding, &env->fp_status); + /* + * PowerPC propagation rules: + * 1. A if it sNaN or qNaN + * 2. B if it sNaN or qNaN + * A signaling NaN is always silenced before returning it. + */ + set_float_2nan_prop_rule(float_2nan_prop_ab, &env->fp_status); + set_float_2nan_prop_rule(float_2nan_prop_ab, &env->vec_status); for (i = 0; i < ARRAY_SIZE(env->spr_cb); i++) { ppc_spr_t *spr = &env->spr_cb[i]; |