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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
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/*- * Copyright (c) 1997 Jonathan Lemon * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. * * $FreeBSD: release/9.1.0/sys/pc98/apm/apm_bioscall.S 145326 2005-04-20 12:28:20Z nyan $ */ /* * Functions for calling x86 BIOS functions from the BSD kernel */ #include <machine/asmacros.h> .text /* * bios32_apm98(regs, offset, segment) * struct bios_regs *regs; * u_int offset; * u_short segment; */ ENTRY(bios32_apm98) pushl %ebp movl 16(%esp),%ebp mov %bp,bioscall_vector+4 movl 12(%esp),%ebp movl %ebp,bioscall_vector movl 8(%esp),%ebp pushl %ebx pushl %esi pushl %edi movl 0(%ebp),%eax movl 4(%ebp),%ebx movl 8(%ebp),%ecx movl 12(%ebp),%edx movl 16(%ebp),%esi movl 20(%ebp),%edi pushl %ebp pushfl cli lcall *bioscall_vector movl %eax,%edi movl %edx,%esi lahf movl apm_necsmm_addr,%edx andl %edx,%edx jz 9f inb %dx,%al andl apm_necsmm_mask,%eax outb %al,%dx 9: sti popl %ebp movl %edi,0(%ebp) movl %ebx,4(%ebp) movl %ecx,8(%ebp) movl %esi,12(%ebp) movl $0,16(%ebp) /* esi is cannot get */ movl $0,20(%ebp) /* edi is cannot get */ movl %edi,%eax andl $0x100,%eax popl %edi popl %esi popl %ebx popl %ebp ret