From c86acc662079636982dd8bb05c6fd0e4b11b8542 Mon Sep 17 00:00:00 2001
From: mickey <mickey@openbsd.org>
Date: Mon, 21 Apr 1997 20:20:25 +0000
Subject: [PATCH] usleep testing code

---
 sys/arch/i386/stand/boot/cmd.c       | 8 ++++++--
 sys/arch/i386/stand/libsa/biosdev.h  | 6 +++---
 sys/arch/i386/stand/libsa/biostime.S | 8 +++++---
 sys/stand/boot/cmd.c                 | 8 ++++++--
 4 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/sys/arch/i386/stand/boot/cmd.c b/sys/arch/i386/stand/boot/cmd.c
index c423016a880..66935bec89f 100644
--- a/sys/arch/i386/stand/boot/cmd.c
+++ b/sys/arch/i386/stand/boot/cmd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cmd.c,v 1.10 1997/04/21 20:03:30 mickey Exp $	*/
+/*	$OpenBSD: cmd.c,v 1.11 1997/04/21 20:20:25 mickey Exp $	*/
 
 /*
  * Copyright (c) 1997 Michael Shalayeff
@@ -179,7 +179,11 @@ readline(buf, to)
 
 	for (i = to; i-- && !ischar(); )
 #ifndef _TEST
-		usleep(100000);
+		if ((to = usleep(100000))) {
+			printf ("usleep failed (%d)\n", to);
+			i = 1;
+			break;
+		}
 #else
 		;
 #endif
diff --git a/sys/arch/i386/stand/libsa/biosdev.h b/sys/arch/i386/stand/libsa/biosdev.h
index c20004f32d8..43dcbdc100f 100644
--- a/sys/arch/i386/stand/libsa/biosdev.h
+++ b/sys/arch/i386/stand/libsa/biosdev.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: biosdev.h,v 1.5 1997/04/18 06:54:42 weingart Exp $	*/
+/*	$OpenBSD: biosdev.h,v 1.6 1997/04/21 20:20:27 mickey Exp $	*/
 
 /*
  * Copyright (c) 1996 Michael Shalayeff
@@ -50,7 +50,7 @@ int biosioctl __P((struct open_file *, u_long, void *));
 
 /* biosdisk.S */
 u_int16_t biosdinfo __P((int dev));
-int		biosdreset __P((void));
+int	biosdreset __P((void));
 int     biosread  __P((int dev, int cyl, int hd, int sect, int nsect, void *));
 int     bioswrite __P((int dev, int cyl, int hd, int sect, int nsect, void *));
 
@@ -70,5 +70,5 @@ int	com_ischar __P((void));
 u_int	biosmem __P((void));
 
 /* biostime.S */
-void	usleep __P((u_long));
+int	usleep __P((u_long));
 #endif
diff --git a/sys/arch/i386/stand/libsa/biostime.S b/sys/arch/i386/stand/libsa/biostime.S
index dbe22ecc06e..0640542fce5 100644
--- a/sys/arch/i386/stand/libsa/biostime.S
+++ b/sys/arch/i386/stand/libsa/biostime.S
@@ -1,4 +1,4 @@
-/*	$OpenBSD: biostime.S,v 1.4 1997/04/21 19:52:51 mickey Exp $	*/
+/*	$OpenBSD: biostime.S,v 1.5 1997/04/21 20:20:28 mickey Exp $	*/
 
 /*
  * Copyright (c) 1997 Michael Shalayeff
@@ -50,8 +50,10 @@ ENTRY(usleep)
 
 	movb	$0x86, %ah
 	BIOSINT(0x15)
-	setnc	%al
-	movzbl	%al, %eax
+	xorb	%al, %al
+	jnc	1f
+	movl	%ah, %al
+1:	movzbl	%al, %eax
 
 	popl	%ecx
 	ret
diff --git a/sys/stand/boot/cmd.c b/sys/stand/boot/cmd.c
index c423016a880..66935bec89f 100644
--- a/sys/stand/boot/cmd.c
+++ b/sys/stand/boot/cmd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cmd.c,v 1.10 1997/04/21 20:03:30 mickey Exp $	*/
+/*	$OpenBSD: cmd.c,v 1.11 1997/04/21 20:20:25 mickey Exp $	*/
 
 /*
  * Copyright (c) 1997 Michael Shalayeff
@@ -179,7 +179,11 @@ readline(buf, to)
 
 	for (i = to; i-- && !ischar(); )
 #ifndef _TEST
-		usleep(100000);
+		if ((to = usleep(100000))) {
+			printf ("usleep failed (%d)\n", to);
+			i = 1;
+			break;
+		}
 #else
 		;
 #endif
-- 
2.20.1