| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 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 |