43 lines
1019 B
C
43 lines
1019 B
C
/* $Id: segmem.h,v 1.3 1993/07/04 04:04:21 root Exp root $
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*/
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/*
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* Copyright Robert J. Amstadt, 1993
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*/
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#ifndef SEGMEM_H
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#define SEGMEM_H
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/*
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* Structure to hold info about each selector we create.
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*/
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struct segment_descriptor_s
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{
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void *base_addr; /* Pointer to segment in flat memory */
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unsigned int length; /* Length of segment */
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unsigned int flags; /* Segment flags (see neexe.h and below)*/
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unsigned short selector; /* Selector used to access this segment */
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};
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/*
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* Additional flags
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*/
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#define NE_SEGFLAGS_MALLOCED 0x00010000 /* Memory allocated with malloc() */
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/*
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* Global memory flags
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*/
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#define GLOBAL_FLAGS_MOVEABLE 0x0002
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#define GLOBAL_FLAGS_ZEROINIT 0x0040
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#define GLOBAL_FLAGS_CODE 0x00010000
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#define GLOBAL_FLAGS_EXECUTEONLY 0x00020000
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#define GLOBAL_FLAGS_READONLY 0x00020000
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#define FIRST_SELECTOR 8
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static __inline__ int Is16bitAddress(void *address)
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{
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return ((int) address >= (((FIRST_SELECTOR << 3) | 0x0007) << 16));
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}
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#endif /* SEGMEM_H */
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