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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * For declaring structures shared with assembly routines
3 *
4 * $Id: asstruct.h,v 1.1.1.1 1994/10/23 05:08:32 rick Exp $
5 */
6
7#ifdef ASSEMBLER
8
9# define MO(t,a) (a)
10# define VMO(t,a) (a)
11
12# define BEGIN_STRUCT(x) _Off=0
13# define S1A(t,x,n) _Off=(_Off+0)&~0; x=_Off; _Off=_Off+(1*n)
14# define S2A(t,x,n) _Off=(_Off+1)&~1; x=_Off; _Off=_Off+(2*n)
15# define S4A(t,x,n) _Off=(_Off+3)&~3; x=_Off; _Off=_Off+(4*n)
16# define WORD(x) _Off=(_Off+3)&~3; x=_Off; _Off=_Off+4
17# define WORDA(x,n) _Off=(_Off+3)&~3; x=_Off; _Off=_Off+(4*n)
18# define VWORD(x) _Off=(_Off+3)&~3; x=_Off; _Off=_Off+4
19# define S1(t,x) _Off=(_Off+0)&~0; x=_Off; _Off=_Off+1
20# define S2(t,x) _Off=(_Off+1)&~1; x=_Off; _Off=_Off+2
21# define S4(t,x) _Off=(_Off+3)&~3; x=_Off; _Off=_Off+4
22# define END_STRUCT(x) _Off=(_Off+3)&~3; x=_Off
23
24#else /* C */
25
26#define VMO(t,a) (*(volatile t *)(a))
27
28# define BEGIN_STRUCT(x) struct x {
29# define S1(t,x) t x ;
30# define S1A(t,x,n) t x[n] ;
31# define S2(t,x) t x ;
32# define S2A(t,x,n) t x[n] ;
33# define S4(t,x) t x ;
34# define S4A(t,x,n) t x[n] ;
35# define END_STRUCT(x) } ;
36
37#endif