Module Name: src
Committed By: rin
Date: Wed Jul 15 08:10:41 UTC 2020
Modified Files:
src/sys/arch/powerpc/fpu: fpu_emu.c
Log Message:
PR port-powerpc/55425
Fix emulation for mtfsf; source register is frB here.
Now, userland processes successfully change rounding mode, by which
FPU-optimized code in OpenSSL works just fine as far as I can see.
To generate a diff of this commit:
cvs rdiff -u -r1.27 -r1.28 src/sys/arch/powerpc/fpu/fpu_emu.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/powerpc/fpu/fpu_emu.c
diff -u src/sys/arch/powerpc/fpu/fpu_emu.c:1.27 src/sys/arch/powerpc/fpu/fpu_emu.c:1.28
--- src/sys/arch/powerpc/fpu/fpu_emu.c:1.27 Wed Jul 15 07:54:25 2020
+++ src/sys/arch/powerpc/fpu/fpu_emu.c Wed Jul 15 08:10:41 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: fpu_emu.c,v 1.27 2020/07/15 07:54:25 rin Exp $ */
+/* $NetBSD: fpu_emu.c,v 1.28 2020/07/15 08:10:41 rin Exp $ */
/*
* Copyright 2001 Wasabi Systems, Inc.
@@ -76,7 +76,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fpu_emu.c,v 1.27 2020/07/15 07:54:25 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fpu_emu.c,v 1.28 2020/07/15 08:10:41 rin Exp $");
#ifdef _KERNEL_OPT
#include "opt_ddb.h"
@@ -586,7 +586,7 @@ fpu_execute(struct trapframe *tf, struct
if (rt & (1<<ra))
mask |= (0xf<<(4*ra));
}
- a = (int *)&fs->fpreg[rt];
+ a = (int *)&fs->fpreg[rb];
fe->fe_cx = mask & a[1];
fe->fe_fpscr = (fe->fe_fpscr&~mask) |
(fe->fe_cx);
