From 70b264ca3912a138b1dce706ec66937350d4d279 Mon Sep 17 00:00:00 2001
From: Niklas Hallqvist <niklas@cvs.openbsd.org>
Date: Thu, 4 Feb 1999 23:37:40 +0000
Subject: Save/restore the fp state setjmp/longjmp does not

---
 lib/libc_r/arch/alpha/uthread_machdep.h | 55 ++++++++++++++++++++++++---------
 1 file changed, 41 insertions(+), 14 deletions(-)

(limited to 'lib/libc_r/arch/alpha/uthread_machdep.h')

diff --git a/lib/libc_r/arch/alpha/uthread_machdep.h b/lib/libc_r/arch/alpha/uthread_machdep.h
index c64006640b8..7ee0653367d 100644
--- a/lib/libc_r/arch/alpha/uthread_machdep.h
+++ b/lib/libc_r/arch/alpha/uthread_machdep.h
@@ -1,22 +1,49 @@
 /*
  * OpenBSD/alpha machine-dependent thread macros
  *
- * $OpenBSD: uthread_machdep.h,v 1.3 1999/02/03 05:25:01 d Exp $
+ * $OpenBSD: uthread_machdep.h,v 1.4 1999/02/04 23:37:39 niklas Exp $
  */
 
 /* save the floating point state of a thread */
-#define _thread_machdep_save_float_state(thr) 		\
-	{						\
-/*	    char *fdata = (char*)((thr)->_machdep.saved_fp);	\
-	    __asm__("fsave %0"::"m" (*fdata)); */		\
-	}
+#define _thread_machdep_save_float_state(thr)				      \
+do {									      \
+	__asm__(							      \
+	     "stt $f8,  ( 0 * 8) + %0\n\tstt $f9,  ( 1 * 8) + %0\n\t"	      \
+	     "stt $f10, ( 2 * 8) + %0\n\tstt $f11, ( 3 * 8) + %0\n\t"	      \
+	     "stt $f12, ( 4 * 8) + %0\n\tstt $f13, ( 5 * 8) + %0\n\t"	      \
+	     "stt $f14, ( 6 * 8) + %0\n\tstt $f15, ( 7 * 8) + %0\n\t"	      \
+	     "stt $f16, ( 8 * 8) + %0\n\tstt $f17, ( 9 * 8) + %0\n\t"	      \
+	     "stt $f18, (10 * 8) + %0\n\tstt $f19, (11 * 8) + %0\n\t"	      \
+	     "stt $f20, (12 * 8) + %0\n\tstt $f21, (13 * 8) + %0\n\t"	      \
+	     "stt $f22, (14 * 8) + %0\n\tstt $f23, (15 * 8) + %0\n\t"	      \
+	     "stt $f24, (16 * 8) + %0\n\tstt $f25, (17 * 8) + %0\n\t"	      \
+	     "stt $f26, (18 * 8) + %0\n\tstt $f27, (19 * 8) + %0\n\t"	      \
+	     "stt $f28, (20 * 8) + %0\n\tstt $f29, (21 * 8) + %0\n\t"	      \
+	     "stt $f30, (22 * 8) + %0" 			      \
+	     : : "o" ((thr)->_machdep.saved_fp) : "memory");		      \
+} while(0)
 
 /* restore the floating point state of a thread */
-#define _thread_machdep_restore_float_state(thr) 	\
-	{						\
-/*	    char *fdata = (char*)((thr)->_machdep.saved_fp);	\
-	    __asm__("frstor %0"::"m" (*fdata));	*/	\
-	}
+#define _thread_machdep_restore_float_state(thr)			      \
+do {									      \
+	__asm__(							      \
+	     "ldt $f8,  ( 0 * 8) + %0\n\tldt $f9,  ( 1 * 8) + %0\n\t"	      \
+	     "ldt $f10, ( 2 * 8) + %0\n\tldt $f11, ( 3 * 8) + %0\n\t"	      \
+	     "ldt $f12, ( 4 * 8) + %0\n\tldt $f13, ( 5 * 8) + %0\n\t"	      \
+	     "ldt $f14, ( 6 * 8) + %0\n\tldt $f15, ( 7 * 8) + %0\n\t"	      \
+	     "ldt $f16, ( 8 * 8) + %0\n\tldt $f17, ( 9 * 8) + %0\n\t"	      \
+	     "ldt $f18, (10 * 8) + %0\n\tldt $f19, (11 * 8) + %0\n\t"	      \
+	     "ldt $f20, (12 * 8) + %0\n\tldt $f21, (13 * 8) + %0\n\t"	      \
+	     "ldt $f22, (14 * 8) + %0\n\tldt $f23, (15 * 8) + %0\n\t"	      \
+	     "ldt $f24, (16 * 8) + %0\n\tldt $f25, (17 * 8) + %0\n\t"	      \
+	     "ldt $f26, (18 * 8) + %0\n\tldt $f27, (19 * 8) + %0\n\t"	      \
+	     "ldt $f28, (20 * 8) + %0\n\tldt $f29, (21 * 8) + %0\n\t"	      \
+	     "ldt $f30, (22 * 8) + %0\n\t"				      \
+	     : : "o" (thr->_machdep.saved_fp) :				      \
+	     "$f8",  "$f9",  "$f10", "$f11", "$f12", "$f13", "$f14", "$f15",  \
+	     "$f16", "$f17", "$f18", "$f19", "$f20", "$f21", "$f22", "$f23",  \
+	     "$f24", "$f25", "$f26", "$f27", "$f28", "$f29", "$f30"); \
+} while(0)
 
 /* initialise the jmpbuf stack frame so it continues from entry */
 #define _thread_machdep_thread_create(thr, entry, pattr)	\
@@ -31,11 +58,11 @@
 				- sizeof(double);	\
 	}
 
-#define _thread_machdep_longjmp(a,v)    longjmp(a,v)
-#define _thread_machdep_setjmp(a)       setjmp(a)
+#define _thread_machdep_longjmp(a,v)    _longjmp(a,v)
+#define _thread_machdep_setjmp(a)       _setjmp(a)
 
 typedef jmp_buf _machdep_jmp_buf;
 
 struct _machdep_struct {
-	char		saved_fp[108];
+	char		saved_fp[23 * 8];
 };
-- 
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