src/system/libroot/posix/arch/m68k/setjmp_internal.h

   1 /*
   2  * Copyright 2005, Ingo Weinhold <bonefish@cs.tu-berlin.de>. All rights
   3  * reserved. Distributed under the terms of the Haiku License.
   4  */
   5 #ifndef SETJMP_INTERNAL_H
   6 #define SETJMP_INTERNAL_H
   7
   8 /*      M68K function call ABI register use:
   9         d0              - return value
  10         d1              - volatile (return value?)
  11         d2-d7           - local vars
  12         a0              - return value
  13         a1              - volatile (return value?)
  14         a2-a6           - local vars
  15         a6              - (stack frame ?)
  16         a7              - stack pointer
  17 */
  18
  19 /* These are the fields of the __jmp_regs structure */
  20 #define JMP_REGS_D2     0
  21 #define JMP_REGS_PC     (4*(6+6))
  22 #define JMP_REGS_CCR    (4*(6+6)+4)
  23
  24 #define FUNCTION(x) .global x; .type x,@function; x
  25
  26 #endif  /* SETJMP_INTERNAL_H */