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Annotation of researchv10no/cmd/odist/pax/include/align.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * AT&T Bell Laboratories
                      3:  * alignment and pointer pun definitions
                      4:  * : : generated by mkhdr and  genhdr : :
                      5:  */
                      6: 
                      7: #ifndef __ALIGN_H__
                      8: #define __ALIGN_H__
                      9: 
                     10: typedef unsigned long INTEGRAL;
                     11: 
                     12: #define CHUNK          8192
                     13: #define INTEGRAL       long
                     14: #define INTEGER(x)     ((INTEGRAL)(x))
                     15: #define POINTER(x)     ((char*)(x))
                     16: #define ROUND(x,y)     POINTER(INTEGER((x)+(y)-1)&~((y)-1))
                     17: 
                     18: #define BOUND          BOUND2
                     19: #define ALIGN(x)       ALIGN2(x)
                     20: #define TRUNC(x)       TRUNC2(x)
                     21: 
                     22: #define BIT1           0x1
                     23: #define BOUND1         BOUND2
                     24: #define ALIGN1(x)      ALIGN2(x)
                     25: #define TRUNC1(x)      TRUNC2(x)
                     26: #define CLRBIT1(x)     POINTER(INTEGER(x)&0xfffffffe)
                     27: #define SETBIT1(x)     POINTER(INTEGER(x)|0x1)
                     28: #define TSTBIT1(x)     POINTER(INTEGER(x)&0x1)
                     29: 
                     30: #define BIT2           0x2
                     31: #define BOUND2         4
                     32: #define ALIGN2(x)      TRUNC2((x)+3)
                     33: #define TRUNC2(x)      POINTER(INTEGER(x)&0xfffffffc)
                     34: #define CLRBIT2(x)     POINTER(INTEGER(x)&0xfffffffd)
                     35: #define SETBIT2(x)     POINTER(INTEGER(x)|0x2)
                     36: #define TSTBIT2(x)     POINTER(INTEGER(x)&0x2)
                     37: 
                     38: #endif

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