Sweden-Number/include/segmem.h

43 lines
1019 B
C

/* $Id: segmem.h,v 1.3 1993/07/04 04:04:21 root Exp root $
*/
/*
* Copyright Robert J. Amstadt, 1993
*/
#ifndef SEGMEM_H
#define SEGMEM_H
/*
* Structure to hold info about each selector we create.
*/
struct segment_descriptor_s
{
void *base_addr; /* Pointer to segment in flat memory */
unsigned int length; /* Length of segment */
unsigned int flags; /* Segment flags (see neexe.h and below)*/
unsigned short selector; /* Selector used to access this segment */
};
/*
* Additional flags
*/
#define NE_SEGFLAGS_MALLOCED 0x00010000 /* Memory allocated with malloc() */
/*
* Global memory flags
*/
#define GLOBAL_FLAGS_MOVEABLE 0x0002
#define GLOBAL_FLAGS_ZEROINIT 0x0040
#define GLOBAL_FLAGS_CODE 0x00010000
#define GLOBAL_FLAGS_EXECUTEONLY 0x00020000
#define GLOBAL_FLAGS_READONLY 0x00020000
#define FIRST_SELECTOR 8
static __inline__ int Is16bitAddress(void *address)
{
return ((int) address >= (((FIRST_SELECTOR << 3) | 0x0007) << 16));
}
#endif /* SEGMEM_H */