NetBSD/sys/arch/i386/boot/asm.h

196 lines
5.0 KiB
C

/*
* Ported to Boot 386BSD by Julian Elsicher (julian@tfs.com) Sept. 1992
*
* Mach Operating System
* Copyright (c) 1991,1990,1989 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.
*/
/*
* HISTORY
* $Log: asm.h,v $
* Revision 1.1 1993/03/21 18:04:42 cgd
* after 0.2.2 "stable" patches applied
*
* Revision 2.7 92/02/29 15:33:41 rpd
* Added ENTRY2.
* [92/02/28 rpd]
*
* Revision 2.6 92/02/19 15:07:52 elf
* Changed #if __STDC__ to #ifdef __STDC__
* [92/01/16 jvh]
*
* Revision 2.5 91/05/14 16:02:45 mrt
* Correcting copyright
*
* Revision 2.4 91/02/05 17:10:42 mrt
* Changed to new Mach copyright
* [91/02/01 17:30:29 mrt]
*
* Revision 2.3 90/12/20 16:35:27 jeffreyh
* changes for __STDC__
* [90/12/06 jeffreyh]
*
* Revision 2.2 90/05/03 15:24:12 dbg
* First checkin.
*
*
* Typo on ENTRY if gprof
* [90/03/29 rvb]
*
* fix SVC for "ifdef wheeze" [kupfer]
* Fix the GPROF definitions.
* ENTRY(x) gets profiled iffdef GPROF.
* Entry(x) (and DATA(x)) is NEVER profiled.
* MCOUNT can be used by asm that intends to build a frame,
* after the frame is built.
* [90/02/26 rvb]
*
* Add #define addr16 .byte 0x67
* [90/02/09 rvb]
* Added LBi, SVC and ENTRY
* [89/11/10 09:51:33 rvb]
*
* New a.out and coff compatible .s files.
* [89/10/16 rvb]
*/
#define S_ARG0 4(%esp)
#define S_ARG1 8(%esp)
#define S_ARG2 12(%esp)
#define S_ARG3 16(%esp)
#define FRAME pushl %ebp; movl %esp, %ebp
#define EMARF leave
#define B_ARG0 8(%ebp)
#define B_ARG1 12(%ebp)
#define B_ARG2 16(%ebp)
#define B_ARG3 20(%ebp)
#ifdef wheeze
#define ALIGN 4
#define EXT(x) x
#define LEXT(x) x:
#define LCL(x) ./**/x
#define LB(x,n) ./**/x
#define LBb(x,n) ./**/x
#define LBf(x,n) ./**/x
#define SVC lcall $7,$0
#define String .string
#define Value .value
#define Times(a,b) [a\*b]
#define Divide(a,b) [a\\b]
#define INB inb (%dx)
#define OUTB outb (%dx)
#define INL inl (%dx)
#define OUTL outl (%dx)
#else wheeze
#define ALIGN
#define LCL(x) x
#define LB(x,n) n
#ifdef __STDC__
#define EXT(x) _ ## x
#define LEXT(x) _ ## x ## :
#define LBb(x,n) n ## b
#define LBf(x,n) n ## f
#else __STDC__
#define EXT(x) _/**/x
#define LEXT(x) _/**/x/**/:
#define LBb(x,n) n/**/b
#define LBf(x,n) n/**/f
#endif __STDC__
#define SVC .byte 0x9a; .long 0; .word 0x7
#define String .ascii
#define Value .word
#define Times(a,b) (a*b)
#define Divide(a,b) (a/b)
#define INB inb %dx, %al
#define OUTB outb %al, %dx
#define INL inl %dx, %eax
#define OUTL outl %eax, %dx
#endif wheeze
#define data32 .byte 0x66
#define data16 .byte 0x66
#define addr16 .byte 0x67
#ifdef GPROF
#ifdef __STDC__
#define MCOUNT .data; LB(x, 9); .long 0; .text; lea LBb(x, 9),%edx; call mcount
#define ENTRY(x) .globl EXT(x); .align ALIGN; LEXT(x) ; \
pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
#define ENTRY2(x,y) .globl EXT(x); .globl EXT(y); \
.align ALIGN; LEXT(x) LEXT(y) ; \
pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
#define ASENTRY(x) .globl x; .align ALIGN; x ## : ; \
pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
#else __STDC__
#define MCOUNT .data; LB(x, 9): .long 0; .text; lea LBb(x, 9),%edx; call mcount
#define ENTRY(x) .globl EXT(x); .align ALIGN; LEXT(x) ; \
pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
#define ENTRY2(x,y) .globl EXT(x); .globl EXT(y); \
.align ALIGN; LEXT(x) LEXT(y)
#define ASENTRY(x) .globl x; .align ALIGN; x: ; \
pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
#endif __STDC__
#else GPROF
#ifdef __STDC__
#define MCOUNT
#define ENTRY(x) .globl EXT(x); .align ALIGN; LEXT(x)
#define ENTRY2(x,y) .globl EXT(x); .globl EXT(y); \
.align ALIGN; LEXT(x) LEXT(y)
#define ASENTRY(x) .globl x; .align ALIGN; x ## :
#else __STDC__
#define MCOUNT
#define ENTRY(x) .globl EXT(x); .align ALIGN; LEXT(x)
#define ENTRY2(x,y) .globl EXT(x); .globl EXT(y); \
.align ALIGN; LEXT(x) LEXT(y)
#define ASENTRY(x) .globl x; .align ALIGN; x:
#endif __STDC__
#endif GPROF
#define Entry(x) .globl EXT(x); .align ALIGN; LEXT(x)
#define DATA(x) .globl EXT(x); .align ALIGN; LEXT(x)