-- Best regards, LIU Hao
From 8959c30982e0802fc3d12c9e1688145ac5708cf0 Mon Sep 17 00:00:00 2001
From: LIU Hao <lh_mo...@126.com>
Date: Fri, 14 Feb 2025 10:57:36 +0800
Subject: [PATCH] crt/fesetexceptflag: Fix MXCSR operation
It should set the exception bits, rather than the exception mask bits.
Code on line 38-41 does the correct operation to the x87 status bits.
Signed-off-by: LIU Hao <lh_mo...@126.com>
---
mingw-w64-crt/misc/fesetexceptflag.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mingw-w64-crt/misc/fesetexceptflag.c
b/mingw-w64-crt/misc/fesetexceptflag.c
index 095dfea0b..3e6012c76 100644
--- a/mingw-w64-crt/misc/fesetexceptflag.c
+++ b/mingw-w64-crt/misc/fesetexceptflag.c
@@ -44,8 +44,8 @@ int fesetexceptflag (const fexcept_t * flagp, int excepts)
{
int sse_cw;
__asm__ volatile ("stmxcsr %0;" : "=m" (sse_cw));
- sse_cw &= ~(excepts << 7);
- sse_cw |= ((*flagp & excepts) << 7);
+ sse_cw &= ~excepts;
+ sse_cw |= (*flagp & excepts);
__asm__ volatile ("ldmxcsr %0" : : "m" (sse_cw));
}
--
2.48.1
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