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Diffstat (limited to 'i386/i386at/asm_startup.h')
| -rw-r--r-- | i386/i386at/asm_startup.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/i386/i386at/asm_startup.h b/i386/i386at/asm_startup.h new file mode 100644 index 00000000..5b35293a --- /dev/null +++ b/i386/i386at/asm_startup.h @@ -0,0 +1,42 @@ +/* + * Mach Operating System + * Copyright (c) 1991,1990 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ +/* + * Startup code for an i386 on an AT. + * Kernel is loaded starting at 1MB. + * Protected mode, paging disabled. + * + * %esp -> boottype + * size of extended memory (K) + * size of conventional memory (K) + * boothowto + * + */ + + popl _boottype+KVTOPHYS /* get boottype */ + popl _extmem+KVTOPHYS /* extended memory, in K */ + popl _cnvmem+KVTOPHYS /* conventional memory, in K */ + popl _boothowto+KVTOPHYS /* boot flags */ + |