mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
53 lines
2.3 KiB
ArmAsm
53 lines
2.3 KiB
ArmAsm
|
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
|
||
|
|
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
|
||
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
||
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
||
|
|
│ │
|
||
|
|
│ This program is free software; you can redistribute it and/or modify │
|
||
|
|
│ it under the terms of the GNU General Public License as published by │
|
||
|
|
│ the Free Software Foundation; version 2 of the License. │
|
||
|
|
│ │
|
||
|
|
│ This program is distributed in the hope that it will be useful, but │
|
||
|
|
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
|
||
|
|
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
|
||
|
|
│ General Public License for more details. │
|
||
|
|
│ │
|
||
|
|
│ You should have received a copy of the GNU General Public License │
|
||
|
|
│ along with this program; if not, write to the Free Software │
|
||
|
|
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
|
||
|
|
│ 02110-1301 USA │
|
||
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
||
|
|
|
||
|
|
.code16
|
||
|
|
.section .start,"ax",@progbits
|
||
|
|
_start: jmp 1f
|
||
|
|
1: ljmp $0x600>>4,$2f
|
||
|
|
2: push %cs
|
||
|
|
pop %ds
|
||
|
|
push %cs
|
||
|
|
pop %es
|
||
|
|
mov $0x70000>>4,%ax
|
||
|
|
cli
|
||
|
|
mov %ax,%ss
|
||
|
|
xor %sp,%sp
|
||
|
|
sti
|
||
|
|
cld
|
||
|
|
xor %ax,%ax
|
||
|
|
xor %di,%di
|
||
|
|
mov $0x7c00-0x600,%cx
|
||
|
|
rep stosb
|
||
|
|
xchg %di,%bx
|
||
|
|
inc %cx
|
||
|
|
xor %dh,%dh
|
||
|
|
mov $v_sectors+0x0200,%ax
|
||
|
|
int $0x13
|
||
|
|
xor %bp,%bp
|
||
|
|
sub $6,%sp
|
||
|
|
call main
|
||
|
|
nop
|
||
|
|
.type _start,@function
|
||
|
|
.size _start,.-_start
|
||
|
|
.globl _start
|
||
|
|
.globl v_sectors
|
||
|
|
.globl main
|