freebsd-skq/sys/i386/apm/apm_setup.s

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/*
* LP (Laptop Package)
*
* Copyright (C) 1994 by HOSOKAWA, Tatsumi <hosokawa@mt.cs.keio.ac.jp>
*
* This software may be used, modified, copied, distributed, and sold,
* in both source and binary form provided that the above copyright and
* these terms are retained. Under no circumstances is the author
* responsible for the proper functioning of this software, nor does
* the author assume any responsibility for damages incurred with its
* use.
*
* Sep., 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
*/
#ifdef APM
#define ASM
#include <machine/asmacros.h>
#include "assym.s"
#include <machine/apm_bios.h>
.file "apm_setup.s"
.text
/* void call_apm(union real_regs *); */
_call_apm:
.globl _call_apm
pushl %ebp
movl %esp, %ebp
pushl %esi
pushl %edi
pushl %ebx
pushl %ecx
movl 8(%ebp), %eax
movl %eax, struct_regs
movw 2(%eax), %bx
movw 4(%eax), %cx
movw 6(%eax), %dx
movw 8(%eax), %si
movw 10(%eax), %di
movw 0(%eax), %ax
lcall _apm_addr /* intersegment call */
setc cf_result
movb %ah, _apm_errno
push %eax
movl struct_regs, %eax
movw %bx, 2(%eax)
movw %cx, 4(%eax)
movw %dx, 6(%eax)
movw %si, 8(%eax)
movw %di, 10(%eax)
movb cf_result, %bl
xorb %bh, %bh
movw %bx, 12(%eax)
popl %ebx
movl %ebx, 0(%eax)
popl %ecx
popl %ebx
popl %edi
popl %esi
leave
ret
.data
struct_regs:
.long 0
cf_result:
.byte 0
_apm_errno:
.globl _apm_errno
.byte 0
.data
_apm_init_image:
.globl _apm_init_image
1:
#include "apm_init/apm_init.inc"
2:
_apm_init_image_size:
.globl _apm_init_image_size
.long 2b - 1b
_apm_version:
.globl _apm_version
.long 0
_apm_cs_entry:
.globl _apm_cs_entry
.long 0
_apm_cs16_base:
.globl _apm_cs16_base
.word 0
_apm_cs32_base:
.globl _apm_cs32_base
.word 0
_apm_ds_base:
.globl _apm_ds_base
.word 0
_apm_cs_limit:
.globl _apm_cs_limit
.word 0
_apm_ds_limit:
.globl _apm_ds_limit
.word 0
_apm_flags:
.globl _apm_flags
.word 0
#endif /* APM */