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authormsmith <msmith@FreeBSD.org>1998-09-17 23:52:16 +0000
committermsmith <msmith@FreeBSD.org>1998-09-17 23:52:16 +0000
commitf0b5ddae6f18f4e9b5ad66d339e2f6b10f5003fa (patch)
tree7fadd070d2d84c282103a99a4ea34ee576dfe81c /sys/boot/i386/libi386/biosmem.S
parent00163848c15519499c016ae12ed2a2a3aaf24a83 (diff)
downloadFreeBSD-src-f0b5ddae6f18f4e9b5ad66d339e2f6b10f5003fa.zip
FreeBSD-src-f0b5ddae6f18f4e9b5ad66d339e2f6b10f5003fa.tar.gz
Initial integration of the i386 bootloader and BTX.
- Discard large amounts of BIOS-related code in favour of the more compact BTX vm86 interface. - Build the loader module as ELF, although the resulting object is a.out, make gensetdefs 32/64-bit sensitive and use a single copy of it. - Throw away installboot, as it's no longer required. - Use direct bcopy operations in the i386_copy module, as BTX maps the first 16M of memory. Check operations against the detected size of actual memory.
Diffstat (limited to 'sys/boot/i386/libi386/biosmem.S')
-rw-r--r--sys/boot/i386/libi386/biosmem.S99
1 files changed, 0 insertions, 99 deletions
diff --git a/sys/boot/i386/libi386/biosmem.S b/sys/boot/i386/libi386/biosmem.S
deleted file mode 100644
index cb97672..0000000
--- a/sys/boot/i386/libi386/biosmem.S
+++ /dev/null
@@ -1,99 +0,0 @@
-/* $NetBSD: biosmem.S,v 1.5 1997/08/18 22:44:01 hannken Exp $ */
-
-/*
- * Copyright (c) 1996
- * Perry E. Metzger. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgements:
- * This product includes software developed for the NetBSD Project
- * by Perry E. Metzger.
- * 4. The names of the authors may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-#include <machine/asm.h>
-
-#define data32 .byte 0x66
-
- .text
-
-/* get mem below 1M, in kByte */
-
-ENTRY(getbasemem)
- pushl %ebp
- movl %esp,%ebp
- pushl %ebx
- push %esi
- push %edi
-
- call CNAME(prot_to_real)
-
- int $0x12
- # zero-extend 16-bit result to 32 bits.
- data32
- movl $0, %ebx
- mov %eax,%ebx # !!! at run time, it is mov %ax,%bx
-
- data32
- call CNAME(real_to_prot)
-
- movl %ebx, %eax
-
- pop %edi
- pop %esi
- popl %ebx
- popl %ebp
- ret
-
-/* get mem above 1M, in kByte */
-
-ENTRY(getextmem)
- pushl %ebp
- movl %esp,%ebp
- pushl %ebx
- push %esi
- push %edi
-
- call CNAME(prot_to_real)
-
- movb $0x88,%ah
- int $0x15
-
- # zero-extend 16-bit result to 32 bits.
- data32
- movl $0, %ebx
- mov %eax,%ebx # !!! at run time, it is mov %ax,%bx
-
- data32
- call CNAME(real_to_prot)
-
- movl %ebx, %eax
-
- pop %edi
- pop %esi
- popl %ebx
- popl %ebp
- ret
-
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