diff options
Diffstat (limited to 'i386/pc/i16/i16_bios.h')
-rw-r--r-- | i386/pc/i16/i16_bios.h | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/i386/pc/i16/i16_bios.h b/i386/pc/i16/i16_bios.h deleted file mode 100644 index 29dc2d8..0000000 --- a/i386/pc/i16/i16_bios.h +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Copyright (c) 1995-1994 The University of Utah and - * the Computer Systems Laboratory at the University of Utah (CSL). - * All rights reserved. - * - * Permission to use, copy, modify and distribute this software is hereby - * granted provided that (1) source code retains these copyright, permission, - * and disclaimer notices, and (2) redistributions including binaries - * reproduce the notices in supporting documentation, and (3) all advertising - * materials mentioning features or use of this software display the following - * acknowledgement: ``This product includes software developed by the - * Computer Systems Laboratory at the University of Utah.'' - * - * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS - * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF - * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * CSL requests users of this software to return to csl-dist@cs.utah.edu any - * improvements that they make and grant CSL redistribution rights. - * - * Author: Bryan Ford, University of Utah CSL - */ -#ifndef _I16_BIOS_H_ -#define _I16_BIOS_H_ - -#include <mach/inline.h> - - -MACH_INLINE void i16_bios_putchar(int c) -{ - asm volatile("int $0x10" : : "a" (0x0e00 | (c & 0xff)), "b" (0x07)); -} - -MACH_INLINE int i16_bios_getchar() -{ - int c; - asm volatile("int $0x16" : "=a" (c) : "a" (0x0000)); - c &= 0xff; - return c; -} - -MACH_INLINE void i16_bios_warm_boot(void) -{ - asm volatile(" - cli - movw $0x40,%ax - movw %ax,%ds - movw $0x1234,0x72 - ljmp $0xffff,$0x0000 - "); -} - -MACH_INLINE void i16_bios_cold_boot(void) -{ - asm volatile(" - cli - movw $0x40,%ax - movw %ax,%ds - movw $0x0000,0x72 - ljmp $0xffff,$0x0000 - "); -} - -MACH_INLINE unsigned char i16_bios_copy_ext_mem( - unsigned src_la, unsigned dest_la, unsigned short word_count) -{ - char buf[48]; - unsigned short i, rc; - - /* Initialize the descriptor structure. */ - for (i = 0; i < sizeof(buf); i++) - buf[i] = 0; - *((unsigned short*)(buf+0x10)) = 0xffff; /* source limit */ - *((unsigned long*)(buf+0x12)) = src_la; /* source linear address */ - *((unsigned char*)(buf+0x15)) = 0x93; /* source access rights */ - *((unsigned short*)(buf+0x18)) = 0xffff; /* dest limit */ - *((unsigned long*)(buf+0x1a)) = dest_la; /* dest linear address */ - *((unsigned char*)(buf+0x1d)) = 0x93; /* dest access rights */ - -#if 0 - i16_puts("buf:"); - for (i = 0; i < sizeof(buf); i++) - i16_writehexb(buf[i]); - i16_puts(""); -#endif - - /* Make the BIOS call to perform the copy. */ - asm volatile(" - int $0x15 - " : "=a" (rc) - : "a" ((unsigned short)0x8700), - "c" (word_count), - "S" ((unsigned short)(unsigned)buf)); - - return rc >> 8; -} - -#endif _I16_BIOS_H_ |