The-Homebrew-Cloud/Lime3DS
2
0
Fork 0
mirror of https://github.com/Lime3DS/Lime3DS.git synced 2024-11-02 08:25:07 +01:00
Code Issues Packages Projects Releases Wiki Activity

armemu: Fix FSUBS bug where NaN shouldn't be negated

Browse Source
This commit is contained in:
Normmatt 2014-12-16 05:53:19 -05:00 committed by Lioncash
parent 0fd731ee63
commit 2ed03c10e0
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/core/arm/skyeye_common/vfp/vfpsingle.cpp
View File

@ -1148,7 +1148,10 @@ static u32 vfp_single_fsub(ARMul_State* state, int sd, int sn, s32 m, u32 fpscr)
/*
* Subtraction is addition with one sign inverted.
*/
return vfp_single_fadd(state, sd, sn, vfp_single_packed_negate(m), fpscr);
if (m != 0x7FC00000) // Only negate if m isn't NaN.
m = vfp_single_packed_negate(m);
return vfp_single_fadd(state, sd, sn, m, fpscr);
}
/*