From: mickey <mickey@openbsd.org>
Date: Mon, 31 Mar 1997 23:08:36 +0000 (+0000)
Subject: missed additions to the last commit
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=8abaa52d256ca65c4bc2fef7933c97be46879f02;p=openbsd

missed additions to the last commit
and....
it compiles and runs ok on my machine.
*** TEST IT !!! ***
some pieces into MI libsa coming in a minute (if line won't drop ;)
---

diff --git a/sys/arch/i386/stand/libsa/biosmem.S b/sys/arch/i386/stand/libsa/biosmem.S
new file mode 100644
index 00000000000..a13f4cbf897
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/biosmem.S
@@ -0,0 +1,97 @@
+/*	$OpenBSD: biosmem.S,v 1.1 1997/03/31 23:08:36 mickey Exp $	*/
+
+/*
+ * Ported to boot 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
+ *
+ * Mach Operating System
+ * Copyright (c) 1992, 1991 Carnegie Mellon University
+ * All Rights Reserved.
+ * 
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ * 
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ * 
+ * Carnegie Mellon requests users of this software to return to
+ * 
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ * 
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+
+/*
+  Copyright 1988, 1989, 1990, 1991, 1992 
+   by Intel Corporation, Santa Clara, California.
+
+                All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and
+its documentation for any purpose and without fee is hereby
+granted, provided that the above copyright notice appears in all
+copies and that both the copyright notice and this permission notice
+appear in supporting documentation, and that the name of Intel
+not be used in advertising or publicity pertaining to distribution
+of the software without specific, written prior permission.
+
+INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
+IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
+NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#include <machine/asm.h>
+#define	data32	.byte 0x66
+
+/*
+#
+# biosmem(i) :  return the memory size in KB. i == 0 for conventional memory,
+#		i == 1 for extended memory
+#	BIOS call "INT 12H" to get conventional memory size
+#	BIOS call "INT 15H, AH=88H" to get extended memory size
+#		Both have the return value in AX.
+#
+*/
+
+ENTRY(biosmem)
+	pushl	%ebp
+	movl	%esp, %ebp
+	pushl	%esi
+	pushl	%edi
+
+	movl	8(%ebp), %edx
+
+	call	_C_LABEL(prot_to_real)	# enter real mode
+
+	testb	%dl, %dl
+	jnz	1f
+	
+	int	$0x12
+	jmp	2f
+
+1:
+	movb	$0x88, %ah
+	int	$0x15
+
+2:
+	movl	%eax, %edx
+
+	data32
+	call	_C_LABEL(real_to_prot)
+
+	movl	%edx, %eax
+	popl	%edi
+	popl	%esi
+	popl	%ebp
+	ret
diff --git a/sys/arch/i386/stand/libsa/exec_i386.S b/sys/arch/i386/stand/libsa/exec_i386.S
new file mode 100644
index 00000000000..541a2db4ed3
--- /dev/null
+++ b/sys/arch/i386/stand/libsa/exec_i386.S
@@ -0,0 +1,42 @@
+/*	$OpenBSD: exec_i386.S,v 1.2 1997/03/31 23:08:37 mickey Exp $	*/
+
+#include <machine/asm.h>
+
+/*
+ * machdep_start(phyaddr)
+ *	start the program on protected mode where phyaddr is the entry point
+ */
+	.globl	_cnvmem, _extmem
+ENTRY(machdep_start)
+	pushl	%ebp
+	movl	%esp, %ebp
+
+	# get things we need into registers
+	movl	8(%ebp), %ecx		# entry offset 
+	movl	12(%ebp), %edi		# howto
+	movl	16(%ebp), %edx		# loadaddr
+	movl	24(%ebp), %esi		# esym
+
+	# make a new stack at 0:0x90000 (big segs)
+	movl	$0x10, %eax
+	movw	%ax, %ss
+	movl	$0x90000, %eax
+	movl	%eax, %esp
+	
+	# push some number of args onto the stack
+	pushl	_cnvmem
+	pushl	_extmem
+	pushl	%esi		# esym
+	pushl	$0		# cyloff
+	pushl	$0		# bootdev
+	pushl	%edi		# howto
+	pushl	$0		# dummy 'return' address
+	
+	# push on our entry address
+	movl	0x8, %eax		# segment
+	pushw	%ax
+	andl	$0xffffff, %ecx
+	pushl	%ecx
+
+	# convert the PC (and code seg)
+	lret