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eeff926ede
- Move DiskStopFloppyMotor() calls into the implementations of Boot(New)LinuxKernel() and Reboot() HW functions, and the explanation comments in ChainLoadBiosBootSectorCode(). - Remove unneeded DiskStopFloppyMotor() dummies in ARM and PPC code. - Use more adequate bitmask value to be sent to floppy's Digital Output Register for shutting down its motor (based on OSDev & our floppy controller driver).
59 lines
1.7 KiB
ArmAsm
59 lines
1.7 KiB
ArmAsm
/*
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* FreeLoader
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* Copyright (C) 1998-2002 Brian Palmer <brianp@sginet.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <asm.inc>
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#include <arch/pc/x86common.h>
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EXTERN _DiskStopFloppyMotor:PROC
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EXTERN i386CallRealMode:PROC
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.code32
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/*
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* VOID BootOldLinuxKernel(ULONG KernelSize);
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*/
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PUBLIC _BootOldLinuxKernel
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_BootOldLinuxKernel:
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/* First we have to copy the kernel down from 0x100000 to 0x10000 */
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/* The reason we can overwrite low memory is because this code */
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/* executes between 0000:8000 and 0000:FFFF. That leaves space for */
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/* 32k of code before we start interfering with Linux kernel address space. */
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/* Get KernelSize in ECX and move the kernel down */
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mov ecx, [esp + 4]
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mov esi, HEX(100000)
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mov edi, HEX(10000)
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rep movsb
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/* Fall through */
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PUBLIC _BootNewLinuxKernel
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_BootNewLinuxKernel:
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/* Stop the floppy drive motor */
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call _DiskStopFloppyMotor
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mov bx, FNID_BootLinuxKernel
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call i386CallRealMode
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/* We should never get here */
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int 3
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END
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