162 lines
4.1 KiB
C
162 lines
4.1 KiB
C
/*
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* source in this file came from
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* the 386BSD boot blocks written by Julian Elsicher.
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*
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* Ported to Boot 386BSD by Julian Elsicher (julian@tfs.com) Sept. 1992
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*
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* Mach Operating System
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* Copyright (c) 1991,1990,1989 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*
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* $Id: asm.h,v 1.2 1993/08/02 17:52:48 mycroft Exp $
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*/
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#define S_ARG0 4(%esp)
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#define S_ARG1 8(%esp)
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#define S_ARG2 12(%esp)
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#define S_ARG3 16(%esp)
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#define FRAME pushl %ebp; movl %esp, %ebp
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#define EMARF leave
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#define B_ARG0 8(%ebp)
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#define B_ARG1 12(%ebp)
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#define B_ARG2 16(%ebp)
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#define B_ARG3 20(%ebp)
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#ifdef wheeze
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#define ALIGN 4
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#define EXT(x) x
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#define LEXT(x) x:
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#define LCL(x) ./**/x
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#define LB(x,n) ./**/x
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#define LBb(x,n) ./**/x
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#define LBf(x,n) ./**/x
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#define SVC lcall $7,$0
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#define String .string
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#define Value .value
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#define Times(a,b) [a\*b]
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#define Divide(a,b) [a\\b]
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#define INB inb (%dx)
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#define OUTB outb (%dx)
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#define INL inl (%dx)
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#define OUTL outl (%dx)
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#else wheeze
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/* #define ALIGN */
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#define ALIGN 4
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#define LCL(x) x
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#define LB(x,n) n
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#ifdef __STDC__
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#define EXT(x) _ ## x
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#define LEXT(x) _ ## x ## :
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#define LBb(x,n) n ## b
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#define LBf(x,n) n ## f
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#else __STDC__
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#define EXT(x) _/**/x
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#define LEXT(x) _/**/x/**/:
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#define LBb(x,n) n/**/b
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#define LBf(x,n) n/**/f
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#endif __STDC__
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#define SVC .byte 0x9a; .long 0; .word 0x7
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#define String .ascii
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#define Value .word
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#define Times(a,b) (a*b)
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#define Divide(a,b) (a/b)
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#define INB inb %dx, %al
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#define OUTB outb %al, %dx
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#define INL inl %dx, %eax
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#define OUTL outl %eax, %dx
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#endif wheeze
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#define data32 .byte 0x66
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#define data16 .byte 0x66
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#define addr16 .byte 0x67
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#ifdef GPROF
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#ifdef __STDC__
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#define MCOUNT .data; LB(x, 9); .long 0; .text; lea LBb(x, 9),%edx; call mcount
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#define ENTRY(x) .globl EXT(x); .align ALIGN; LEXT(x) ; \
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pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
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#define ENTRY2(x,y) .globl EXT(x); .globl EXT(y); \
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.align ALIGN; LEXT(x) LEXT(y) ; \
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pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
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#define ASENTRY(x) .globl x; .align ALIGN; x ## : ; \
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pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
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#else __STDC__
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#define MCOUNT .data; LB(x, 9): .long 0; .text; lea LBb(x, 9),%edx; call mcount
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#define ENTRY(x) .globl EXT(x); .align ALIGN; LEXT(x) ; \
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pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
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#define ENTRY2(x,y) .globl EXT(x); .globl EXT(y); \
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.align ALIGN; LEXT(x) LEXT(y)
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#define ASENTRY(x) .globl x; .align ALIGN; x: ; \
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pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
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#endif __STDC__
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#else GPROF
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#ifdef __STDC__
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#define MCOUNT
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#define ENTRY(x) .globl EXT(x); .align ALIGN; LEXT(x)
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#define ENTRY2(x,y) .globl EXT(x); .globl EXT(y); \
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.align ALIGN; LEXT(x) LEXT(y)
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#define ASENTRY(x) .globl x; .align ALIGN; x ## :
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#else __STDC__
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#define MCOUNT
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#define ENTRY(x) .globl EXT(x); .align ALIGN; LEXT(x)
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#define ENTRY2(x,y) .globl EXT(x); .globl EXT(y); \
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.align ALIGN; LEXT(x) LEXT(y)
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#define ASENTRY(x) .globl x; .align ALIGN; x:
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#endif __STDC__
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#endif GPROF
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#define Entry(x) .globl EXT(x); .align ALIGN; LEXT(x)
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#define DATA(x) .globl EXT(x); .align ALIGN; LEXT(x)
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CR0_PE = 0x00000001
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KERN_CODE_SEG = 0x08
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KERN_DATA_SEG = 0x10
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BOOT_16_SEG = 0x18
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#define opsize .byte 0x66
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#define addrsize .byte 0x67
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