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-rw-r--r--sysdeps/i386/bits/select.h19
-rw-r--r--sysdeps/i386/bzero.c20
-rw-r--r--sysdeps/i386/memcopy.h42
-rw-r--r--sysdeps/i386/memset.c21
4 files changed, 57 insertions, 45 deletions
diff --git a/sysdeps/i386/bits/select.h b/sysdeps/i386/bits/select.h
index f2ab43ebbb..f21407f81f 100644
--- a/sysdeps/i386/bits/select.h
+++ b/sysdeps/i386/bits/select.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,12 +24,17 @@
 #if defined __GNUC__ && __GNUC__ >= 2
 
 # define __FD_ZERO(fdsetp) \
-  __asm__ __volatile__ ("cld; rep; stosl"				      \
-			: "=m" ((fdsetp)->fds_bits[__FDELT (__FD_SETSIZE)])   \
-			: "a" (0), "c" (sizeof (__fd_set)		      \
-					/ sizeof (__fd_mask)),		      \
-			  "D" (&(fdsetp)->fds_bits[0])			      \
-			:"cx","di","memory")
+  do {									      \
+    int __d0, __d1;							      \
+    __asm__ __volatile__ ("cld; rep; stosl"				      \
+			  : "=m" ((fdsetp)->fds_bits[__FDELT (__FD_SETSIZE)]),\
+			    "=&c" (__d0), "=&D" (__d1)			      \
+			  : "a" (0), "1" (sizeof (__fd_set)		      \
+					  / sizeof (__fd_mask)),	      \
+			    "2" (&(fdsetp)->fds_bits[0])		      \
+			  : "memory");					      \
+  } while (0)
+
 # define __FD_SET(fd, fdsetp) \
   __asm__ __volatile__ ("btsl %1,%0"					      \
 			: "=m" ((fdsetp)->fds_bits[__FDELT (fd)])	      \
diff --git a/sysdeps/i386/bzero.c b/sysdeps/i386/bzero.c
index 99f2352dc6..80574cca6a 100644
--- a/sysdeps/i386/bzero.c
+++ b/sysdeps/i386/bzero.c
@@ -1,6 +1,6 @@
 /* bzero -- set a block of memory to zero.  For Intel 80x86, x>=3.
    This file is part of the GNU C Library.
-   Copyright (C) 1991, 1992, 1993, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1992, 1993, 1997, 1998 Free Software Foundation, Inc.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -31,7 +31,7 @@ __bzero (dstpp, len)
      size_t len;
 {
   /* N.B.: This code is almost verbatim from memset.c.  */
-
+  int d0;
   unsigned long int dstp = (unsigned long int) dstpp;
 
   /* This explicit register allocation
@@ -55,25 +55,25 @@ __bzero (dstpp, len)
       /* Fill bytes until DSTP is aligned on a longword boundary.  */
       asm volatile ("rep\n"
 		    "stosb" /* %0, %2, %3 */ :
-		    "=D" (dstp) :
-		    "0" (dstp), "c" ((-dstp) % OPSIZ), "a" (x) :
-		    "cx");
+		    "=D" (dstp), "=c" (d0) :
+		    "0" (dstp), "1" ((-dstp) % OPSIZ), "a" (x) :
+		    "memory");
 
       /* Fill longwords.  */
       asm volatile ("rep\n"
 		    "stosl" /* %0, %2, %3 */ :
-		    "=D" (dstp) :
-		    "0" (dstp), "c" (len / OPSIZ), "a" (x) :
-		    "cx");
+		    "=D" (dstp), "=c" (d0) :
+		    "0" (dstp), "1" (len / OPSIZ), "a" (x) :
+		    "memory");
       len %= OPSIZ;
     }
 
   /* Write the last few bytes.  */
   asm volatile ("rep\n"
 		"stosb" /* %0, %2, %3 */ :
-		"=D" (dstp) :
+		"=D" (dstp), "=c" (d0) :
 		"0" (dstp), "c" (len), "a" (x) :
-		"cx");
+		"memory");
 }
 weak_alias (__bzero, bzero)
 
diff --git a/sysdeps/i386/memcopy.h b/sysdeps/i386/memcopy.h
index 576f996957..68ce91e095 100644
--- a/sysdeps/i386/memcopy.h
+++ b/sysdeps/i386/memcopy.h
@@ -1,5 +1,5 @@
 /* memcopy.h -- definitions for memory copy functions.  i386 version.
-   Copyright (C) 1991, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
@@ -25,19 +25,23 @@
 
 #undef	BYTE_COPY_FWD
 #define BYTE_COPY_FWD(dst_bp, src_bp, nbytes)				      \
-  asm volatile(/* Clear the direction flag, so copying goes forward.  */      \
-	       "cld\n"							      \
-	       /* Copy bytes.  */					      \
-	       "rep\n"							      \
-	       "movsb" :						      \
-	       "=D" (dst_bp), "=S" (src_bp) :				      \
-	       "0" (dst_bp), "1" (src_bp), "c" (nbytes) :		      \
-	       "cx")
+  do {									      \
+    int __d0;								      \
+    asm volatile(/* Clear the direction flag, so copying goes forward.  */    \
+		 "cld\n"						      \
+		 /* Copy bytes.  */					      \
+		 "rep\n"						      \
+		 "movsb" :						      \
+		 "=D" (dst_bp), "=S" (src_bp), "=c" (__d0) :		      \
+		 "0" (dst_bp), "1" (src_bp), "2" (nbytes) :		      \
+		 "memory");						      \
+  } while (0)
 
 #undef	BYTE_COPY_BWD
 #define BYTE_COPY_BWD(dst_ep, src_ep, nbytes)				      \
   do									      \
     {									      \
+      int __d0;								      \
       asm volatile(/* Set the direction flag, so copying goes backwards.  */  \
 		   "std\n"						      \
 		   /* Copy bytes.  */					      \
@@ -45,9 +49,9 @@
 		   "movsb\n"						      \
 		   /* Clear the dir flag.  Convention says it should be 0. */ \
 		   "cld" :						      \
-		   "=D" (dst_ep), "=S" (src_ep) :			      \
-		   "0" (dst_ep - 1), "1" (src_ep - 1), "c" (nbytes) :	      \
-		   "cx");						      \
+		   "=D" (dst_ep), "=S" (src_ep), "=c" (__d0) :		      \
+		   "0" (dst_ep - 1), "1" (src_ep - 1), "2" (nbytes) :	      \
+		   "memory");						      \
       dst_ep += 1;							      \
       src_ep += 1;							      \
     } while (0)
@@ -56,14 +60,15 @@
 #define WORD_COPY_FWD(dst_bp, src_bp, nbytes_left, nbytes)		      \
   do									      \
     {									      \
+      int __d0;								      \
       asm volatile(/* Clear the direction flag, so copying goes forward.  */  \
 		   "cld\n"						      \
 		   /* Copy longwords.  */				      \
 		   "rep\n"						      \
 		   "movsl" :						      \
-		   "=D" (dst_bp), "=S" (src_bp) :			      \
-		   "0" (dst_bp), "1" (src_bp), "c" ((nbytes) / 4) :	      \
-		   "cx");						      \
+ 		   "=D" (dst_bp), "=S" (src_bp), "=c" (__d0) :		      \
+		   "0" (dst_bp), "1" (src_bp), "2" ((nbytes) / 4) :	      \
+		   "memory");						      \
       (nbytes_left) = (nbytes) % 4;					      \
     } while (0)
 
@@ -71,6 +76,7 @@
 #define WORD_COPY_BWD(dst_ep, src_ep, nbytes_left, nbytes)		      \
   do									      \
     {									      \
+      int __d0;								      \
       asm volatile(/* Set the direction flag, so copying goes backwards.  */  \
 		   "std\n"						      \
 		   /* Copy longwords.  */				      \
@@ -78,9 +84,9 @@
 		   "movsl\n"						      \
 		   /* Clear the dir flag.  Convention says it should be 0. */ \
 		   "cld" :						      \
-		   "=D" (dst_ep), "=S" (src_ep) :			      \
-		   "0" (dst_ep - 4), "1" (src_ep - 4), "c" ((nbytes) / 4) :   \
-		   "cx");						      \
+		   "=D" (dst_ep), "=S" (src_ep), "=c" (__d0) :		      \
+		   "0" (dst_ep - 4), "1" (src_ep - 4), "2" ((nbytes) / 4) :   \
+		   "memory");						      \
       dst_ep += 4;							      \
       src_ep += 4;							      \
       (nbytes_left) = (nbytes) % 4;					      \
diff --git a/sysdeps/i386/memset.c b/sysdeps/i386/memset.c
index 0cb6578df6..e7a8bc6d73 100644
--- a/sysdeps/i386/memset.c
+++ b/sysdeps/i386/memset.c
@@ -1,6 +1,6 @@
 /* Set a block of memory to some byte value.
    For Intel 80x86, x>=3.
-   Copyright (C) 1991, 1992, 1993, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1992, 1993, 1997, 1998 Free Software Foundation, Inc.
    Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -28,6 +28,7 @@
 void *
 memset (void *dstpp, int c, size_t len)
 {
+  int d0;
   unsigned long int dstp = (unsigned long int) dstpp;
 
   /* This explicit register allocation
@@ -55,25 +56,25 @@ memset (void *dstpp, int c, size_t len)
       /* Fill bytes until DSTP is aligned on a longword boundary.  */
       asm volatile("rep\n"
 		   "stosb" /* %0, %2, %3 */ :
-		   "=D" (dstp) :
-		   "0" (dstp), "c" ((-dstp) % OPSIZ), "a" (x) :
-		   "cx");
+		   "=D" (dstp), "=c" (d0) :
+		   "0" (dstp), "1" ((-dstp) % OPSIZ), "a" (x) :
+		   "memory");
 
       /* Fill longwords.  */
       asm volatile("rep\n"
 		   "stosl" /* %0, %2, %3 */ :
-		   "=D" (dstp) :
-		   "0" (dstp), "c" (len / OPSIZ), "a" (x) :
-		   "cx");
+		   "=D" (dstp), "=c" (d0) :
+		   "0" (dstp), "1" (len / OPSIZ), "a" (x) :
+		   "memory");
       len %= OPSIZ;
     }
 
   /* Write the last few bytes.  */
   asm volatile("rep\n"
 	       "stosb" /* %0, %2, %3 */ :
-	       "=D" (dstp) :
-	       "0" (dstp), "c" (len), "a" (x) :
-	       "cx");
+	       "=D" (dstp), "=c" (d0) :
+	       "0" (dstp), "1" (len), "a" (x) :
+	       "memory");
 
   return dstpp;
 }