toolchain/gcc/newlib/libc/machine/i386/i386mach.h

   1 /*  This file was based on the modified setjmp.S performed by
   2  *  Joel Sherill (joel@OARcorp.com) which specified the use
   3  *  of the __USER_LABEL_PREFIX__ and __REGISTER_PREFIX__ macros.
   4  **
   5  ** This file is distributed WITHOUT ANY WARRANTY; without even the implied
   6  ** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   7  */
   8
   9 /* These are predefined by new versions of GNU cpp.  */
  10
  11 #ifndef __USER_LABEL_PREFIX__
  12 #define __USER_LABEL_PREFIX__ _
  13 #endif
  14
  15 #define __REG_PREFIX__ %
  16
  17 /* ANSI concatenation macros.  */
  18
  19 #define CONCAT1(a, b) CONCAT2(a, b)
  20 #define CONCAT2(a, b) a##b
  21
  22 /* Use the right prefix for global labels.  */
  23
  24 #define SYM(x) CONCAT1(__USER_LABEL_PREFIX__, x)
  25
  26 /* Use the right prefix for registers.  */
  27
  28 #define REG(x) CONCAT1(__REG_PREFIX__, x)
  29
  30 #define eax REG(eax)
  31 #define ebx REG(ebx)
  32 #define ecx REG(ecx)
  33 #define edx REG(edx)
  34 #define esi REG(esi)
  35 #define edi REG(edi)
  36 #define ebp REG(ebp)
  37 #define esp REG(esp)
  38
  39 #define st0 REG(st)
  40 #define st1 REG(st(1))
  41 #define st2 REG(st(2))
  42 #define st3 REG(st(3))
  43 #define st4 REG(st(4))
  44 #define st5 REG(st(5))
  45 #define st6 REG(st(6))
  46 #define st7 REG(st(7))
  47
  48 #define ax REG(ax)
  49 #define bx REG(bx)
  50 #define cx REG(cx)
  51 #define dx REG(dx)
  52
  53 #define ah REG(ah)
  54 #define bh REG(bh)
  55 #define ch REG(ch)
  56 #define dh REG(dh)
  57
  58 #define al REG(al)
  59 #define bl REG(bl)
  60 #define cl REG(cl)
  61 #define dl REG(dl)
  62
  63 #define mm1 REG(mm1)
  64 #define mm2 REG(mm2)
  65 #define mm3 REG(mm3)
  66 #define mm4 REG(mm4)
  67 #define mm5 REG(mm5)
  68 #define mm6 REG(mm6)
  69 #define mm7 REG(mm7)
  70
  71 #ifdef _I386MACH_NEED_SOTYPE_FUNCTION
  72 #define SOTYPE_FUNCTION(sym) .type SYM(sym),@function
  73 #else
  74 #define SOTYPE_FUNCTION(sym)
  75 #endif
  76
  77 #ifdef _I386MACH_ALLOW_HW_INTERRUPTS
  78 #define        __CLI
  79 #define        __STI
  80 #else
  81 #define __CLI  cli
  82 #define __STI  sti
  83 #endif