openkylin
/
qemu
mirror of https://gitee.com/openkylin/qemu.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

rsqrte_f32: No need to copy sign bit. 

Indeed, the result is known to be always positive.

Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Christophe LYON 2011-10-19 16:14:05 +00:00 committed by Peter Maydell
parent cfce6d8934
commit 26cc6abf61
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
target-arm/helper.c
View File

@ -3039,8 +3039,7 @@ float32 HELPER(rsqrte_f32)(float32 a, CPUState *env)
val64 = float64_val(f64);
val = ((val64 >> 63) & 0x80000000)
| ((result_exp & 0xff) << 23)
val = ((result_exp & 0xff) << 23)
| ((val64 >> 29) & 0x7fffff);
return make_float32(val);
}