sun.h
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上传用户:luoyougen
上传日期:2008-05-12
资源大小:23136k
文件大小:2k
源码类别:
VxWorks
开发平台:
C/C++
- /* sun.h - miscellaneous SUN constants */
- /* Copyright 1984-1992 Wind River Systems, Inc. */
- /*
- modification history
- ------------------
- 02b,22sep92,rrr added support for c++
- 02a,04jul92,jcf cleaned up.
- 01d,26may92,rrr the tree shuffle
- 01c,04oct91,rrr passed through the ansification filter
- -changed copyright notice
- 01b,05oct90,shl added copyright notice.
- made #endif ANSI style.
- 01a,28apr89,gae created.
- */
- #ifndef __INCsunh
- #define __INCsunh
- #ifdef __cplusplus
- extern "C" {
- #endif
- #define NBPG 0x2000
- #define SYSBASE 0x0F000000
- #define MMU_PAGESIZE 0x2000 /* 8192 bytes */
- #define MMU_PAGESHIFT 13 /* log2(MMU_PAGESIZE) */
- #define MMU_PAGEOFFSET (MMU_PAGESIZE-1)/* Mask of address bits in page */
- #define MMU_PAGEMASK (~MMU_PAGEOFFSET)
- #define PAGESIZE 0x2000 /* All of the above, for logical */
- #define PAGESHIFT 13
- #define PAGEOFFSET (PAGESIZE - 1)
- #define PAGEMASK (~PAGEOFFSET)
- #define ptob(x) ((x) << PAGESHIFT)
- #define btop(x) (((unsigned)(x)) >> PAGESHIFT)
- #define btopr(x) ((((unsigned)(x) + PAGEOFFSET) >> PAGESHIFT))
- /* memory space types */
- #define SUN_MEM 0x0 /* Main Memory/ video memory */
- #define SUN_IO 0x1 /* SUN I/O space */
- #define SUN_VME16 0x2 /* VME 16 bit data space */
- #define SUN_VME32 0x3 /* VME 32 bit data space */
- #ifdef __cplusplus
- }
- #endif
- #endif /* __INCsunh */