The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/asm.h

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    1 /* 
    2  * Mach Operating System
    3  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
    4  * All Rights Reserved.
    5  * 
    6  * Permission to use, copy, modify and distribute this software and its
    7  * documentation is hereby granted, provided that both the copyright
    8  * notice and this permission notice appear in all copies of the
    9  * software, derivative works or modified versions, and any portions
   10  * thereof, and that both notices appear in supporting documentation.
   11  * 
   12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15  * 
   16  * Carnegie Mellon requests users of this software to return to
   17  * 
   18  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19  *  School of Computer Science
   20  *  Carnegie Mellon University
   21  *  Pittsburgh PA 15213-3890
   22  * 
   23  * any improvements or extensions that they make and grant Carnegie Mellon
   24  * the rights to redistribute these changes.
   25  */
   26 /* 
   27  * HISTORY
   28  * $Log:        asm.h,v $
   29  * Revision 2.9  93/05/10  17:46:19  rvb
   30  *      Define LCLL(x) "Local label" == x:
   31  *      Specify ALIGN == 2.
   32  *      [93/05/03            rvb]
   33  * 
   34  * Revision 2.8  93/03/09  11:17:03  danner
   35  *      Flushed wheeze and fixed for gcc cpp.
   36  *      [93/03/03            mrt]
   37  * 
   38  * Revision 2.7  92/02/29  15:33:41  rpd
   39  *      Added ENTRY2.
   40  *      [92/02/28            rpd]
   41  * 
   42  * Revision 2.6  92/02/19  15:07:52  elf
   43  *      Changed #if __STDC__ to #ifdef __STDC__
   44  *      [92/01/16            jvh]
   45  * 
   46  * Revision 2.5  91/05/14  16:02:45  mrt
   47  *      Correcting copyright
   48  * 
   49  * Revision 2.4  91/02/05  17:10:42  mrt
   50  *      Changed to new Mach copyright
   51  *      [91/02/01  17:30:29  mrt]
   52  * 
   53  * Revision 2.3  90/12/20  16:35:27  jeffreyh
   54  *      changes for __STDC__
   55  *      [90/12/06            jeffreyh]
   56  * 
   57  * Revision 2.2  90/05/03  15:24:12  dbg
   58  *      First checkin.
   59  * 
   60  *
   61  *      Typo on ENTRY if gprof
   62  *      [90/03/29            rvb]
   63  * 
   64  *      fix SVC for "ifdef wheeze" [kupfer]
   65  *      Fix the GPROF definitions.
   66  *      ENTRY(x) gets profiled iffdef GPROF.
   67  *      Entry(x) (and DATA(x)) is NEVER profiled.
   68  *      MCOUNT can be used by asm that intends to build a frame,
   69  *      after the frame is built.
   70  *      [90/02/26            rvb]
   71  *
   72  *      Add #define addr16 .byte 0x67
   73  *      [90/02/09            rvb]
   74  *      Added LBi, SVC and ENTRY
   75  *      [89/11/10  09:51:33  rvb]
   76  * 
   77  *      New a.out and coff compatible .s files.
   78  *      [89/10/16            rvb]
   79  */
   80 
   81 
   82 #define S_ARG0   4(%esp)
   83 #define S_ARG1   8(%esp)
   84 #define S_ARG2  12(%esp)
   85 #define S_ARG3  16(%esp)
   86 
   87 #define FRAME   pushl %ebp; movl %esp, %ebp
   88 #define EMARF   leave
   89 
   90 #define B_ARG0   8(%ebp)
   91 #define B_ARG1  12(%ebp)
   92 #define B_ARG2  16(%ebp)
   93 #define B_ARG3  20(%ebp)
   94 
   95 #define ALIGN   2
   96 #define LCL(x)  x
   97 
   98 #define LB(x,n) n
   99 #ifdef  __STDC__
  100 #define EXT(x) _ ## x
  101 #define LEXT(x) _ ## x ## :
  102 #define LCLL(x) x ## :
  103 #define gLB(n)  n ## :
  104 #define LBb(x,n) n ## b
  105 #define LBf(x,n) n ## f
  106 #else __STDC__
  107 #define EXT(x) _/**/x
  108 #define LEXT(x) _/**/x/**/:
  109 #define LCLL(x) x/**/:
  110 #define gLB(n) n/**/:
  111 #define LBb(x,n) n/**/b
  112 #define LBf(x,n) n/**/f
  113 #endif __STDC__
  114 #define SVC .byte 0x9a; .long 0; .word 0x7
  115 
  116 #define String  .ascii
  117 #define Value   .word
  118 #define Times(a,b) (a*b)
  119 #define Divide(a,b) (a/b)
  120 
  121 #define INB     inb     %dx, %al
  122 #define OUTB    outb    %al, %dx
  123 #define INL     inl     %dx, %eax
  124 #define OUTL    outl    %eax, %dx
  125 
  126 #define data16  .byte 0x66
  127 #define addr16  .byte 0x67
  128 
  129 
  130 
  131 #ifdef GPROF
  132 
  133 #define MCOUNT          .data; gLB(9) .long 0; .text; lea LBb(x, 9),%edx; call mcount
  134 #define ENTRY(x)        .globl EXT(x); .align ALIGN; LEXT(x) ; \
  135                         pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
  136 #define ENTRY2(x,y)     .globl EXT(x); .globl EXT(y); \
  137                         .align ALIGN; LEXT(x) LEXT(y)
  138 #define ASENTRY(x)      .globl x; .align ALIGN; gLB(x) ; \
  139                         pushl %ebp; movl %esp, %ebp; MCOUNT; popl %ebp;
  140 
  141 #else   GPROF
  142 
  143 #define MCOUNT
  144 #define ENTRY(x)        .globl EXT(x); .align ALIGN; LEXT(x)
  145 #define ENTRY2(x,y)     .globl EXT(x); .globl EXT(y); \
  146                         .align ALIGN; LEXT(x) LEXT(y)
  147 #define ASENTRY(x)      .globl x; .align ALIGN; gLB(x)
  148 #endif  GPROF
  149 
  150 #define Entry(x)        .globl EXT(x); .align ALIGN; LEXT(x)
  151 #define DATA(x)         .globl EXT(x); .align ALIGN; LEXT(x)

Cache object: 37c5e32b5d30f2188e5036101ccca638


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