msvcr70: Don't set SSE2 control register in _control87.

Restores old function behavior in msvcr70 and msvcr71. Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55414

msvcr70: Don't set SSE2 control register in _control87.
254dd0a2 · Piotr Caban · Alexandre Julliard · f8cb15b1 · 254dd0a2
Commit 254dd0a2 authored Aug 22, 2023 by Piotr Caban Committed by Alexandre Julliard Aug 22, 2023
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math.c dlls/msvcrt/math.c +1 -1

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--- a/dlls/msvcrt/math.c
+++ b/dlls/msvcrt/math.c
@@ -1195,7 +1195,7 @@ int CDECL __control87_2( unsigned int newval, unsigned int mask,
 unsigned int CDECL _control87(unsigned int newval, unsigned int mask)
 {
    unsigned int flags = 0;
-#ifdef __i386__
+#if defined(__i386__) && (_MSVCR_VER == 0 || _MSVCR_VER >= 80)
    unsigned int sse2_cw;

    __control87_2( newval, mask, &flags, &sse2_cw );