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target/sh4: Set default NaN pattern explicitly

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Set the default NaN pattern explicitly for sh4. Note that sh4
is one of the only three targets (the others being HPPA and
sometimes MIPS) that has snan_bit_is_one set.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-47-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2024-12-11 15:31:06 +00:00
parent 236310812c
commit bfff809d71
1 changed files with 2 additions and 0 deletions
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target/sh4/cpu.c
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@ -127,6 +127,8 @@ static void superh_cpu_reset_hold(Object *obj, ResetType type)
set_flush_to_zero(1, &env->fp_status); set_flush_to_zero(1, &env->fp_status);
#endif #endif
set_default_nan_mode(1, &env->fp_status); set_default_nan_mode(1, &env->fp_status);
/* sign bit clear, set all frac bits other than msb */
set_float_default_nan_pattern(0b00111111, &env->fp_status);
} }
static void superh_cpu_disas_set_info(CPUState *cpu, disassemble_info *info) static void superh_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)