46 lines
2.5 KiB
ArmAsm
46 lines
2.5 KiB
ArmAsm
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
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│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "ape/lib/pc.h"
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#include "ape/config.h"
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#include "ape/macros.internal.h"
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#include "ape/notice.inc"
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.section .real,"ax",@progbits
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.source __FILE__
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.code16
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.globl kBiosDataArea
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.hidden kBiosDataArea
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.type kBiosDataArea,@object
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.size kBiosDataArea,XLM_BIOS_DATA_AREA_SIZE
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kBiosDataArea = ape.xlm + XLM_BIOS_DATA_AREA
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.globl kBiosDataAreaXlm
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.hidden kBiosDataAreaXlm
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.type kBiosDataAreaXlm,@object
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.size kBiosDataAreaXlm,XLM_BIOS_DATA_AREA_SIZE
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kBiosDataAreaXlm = XLM(BIOS_DATA_AREA)
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.section .sort.text.real.init.2.kBiosDataArea,"ax",@progbits
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movpp %ds,%es # copy bios data to valid page
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mov $PC_BIOS_DATA_AREA,%si
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mov $XLM(BIOS_DATA_AREA),%di
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mov $XLM_BIOS_DATA_AREA_SIZE,%cx
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rep movsb
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.previous
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