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45 lines
867 B
C
45 lines
867 B
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (C) 2020 Martin Whitaker.
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//
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// Derived from an extract of memtest86+ lib.c:
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//
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// lib.c - MemTest-86 Version 3.4
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//
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// Released under version 2 of the Gnu Public License.
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// By Chris Brady
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#include <stdint.h>
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#include "io.h"
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#include "hwctrl.h"
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//------------------------------------------------------------------------------
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// Public Functions
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//------------------------------------------------------------------------------
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void reboot(void)
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{
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// Tell the BIOS to do a warm reboot.
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*((uint16_t *)0x472) = 0x1234;
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// Pulse the system reset signal.
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outb(0xfe, 0x64);
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}
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void floppy_off()
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{
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// Stop the floppy motor.
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outb(0x8, 0x3f2);
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}
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void cursor_off()
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{
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// Set HW cursor off screen.
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outb(0x0f, 0x3d4);
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outb(0xff, 0x3d5);
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outb(0x0e, 0x3d4);
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outb(0xff, 0x3d5);
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}
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