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authorPeter Maydell <peter.maydell@linaro.org>2024-12-11 15:31:07 +0000
committerPeter Maydell <peter.maydell@linaro.org>2024-12-11 15:31:07 +0000
commit3d3d399e76c204c718f3ec6ef48fd0bb303070ab (patch)
tree64a3e00f9a51768a9f1d63eadc9f03be53e9950c
parent38ea9ade29e1e3208dc0e82708388c0a1d73ebf2 (diff)
downloadfocaccia-qemu-3d3d399e76c204c718f3ec6ef48fd0bb303070ab.tar.gz
focaccia-qemu-3d3d399e76c204c718f3ec6ef48fd0bb303070ab.zip
target/riscv: Set default NaN pattern explicitly
Set the default NaN pattern explicitly for riscv.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-53-peter.maydell@linaro.org
-rw-r--r--target/riscv/cpu.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index f219f0c3b5..80b09952e7 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -1022,6 +1022,8 @@ static void riscv_cpu_reset_hold(Object *obj, ResetType type)
     cs->exception_index = RISCV_EXCP_NONE;
     env->load_res = -1;
     set_default_nan_mode(1, &env->fp_status);
+    /* Default NaN value: sign bit clear, frac msb set */
+    set_float_default_nan_pattern(0b01000000, &env->fp_status);
     env->vill = true;
 
 #ifndef CONFIG_USER_ONLY