47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
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/*_ INT.H Wed Jun 28 1989 Modified by: Walter Bright */
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/* Copyright (C) 1985-1989 by Northwest Software */
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/* All rights reserved */
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/* Written by Walter Bright */
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/* Header for int package */
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#ifndef INT_H
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#define INT_H 1
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#if __cplusplus
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extern "C" {
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#endif
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#ifndef DOS_H
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#include <dos.h>
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#endif
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/* Structure passed to interrupt service routine (see int_xxx()) */
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struct INT_DATA
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{
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unsigned prevvec_off,prevvec_seg; /* previous interrupt vector */
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unsigned stacksize; /* size of ISR stack */
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unsigned newstack_off,newstack_seg; /* ptr to ISR stack */
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unsigned oldstack_off,oldstack_seg; /* ptr to interrupted stack */
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#if LPTR
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unsigned staticseg; /* value for DS */
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#endif
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int (cdecl *funcptr)();
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union REGS regs; /* passed/returned register and flag values */
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/* (the _cflag member is garbage and is ignored) */
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struct SREGS sregs; /* passed/returned segment register values */
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};
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void cdecl int_getvector(unsigned,unsigned *,unsigned *);
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void cdecl int_setvector(unsigned,unsigned,unsigned);
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int cdecl int_intercept(unsigned,int (cdecl *funcptr)(struct INT_DATA *),unsigned);
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int cdecl int_restore(unsigned);
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void cdecl int_off(void);
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void cdecl int_on(void);
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#if __cplusplus
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}
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#endif
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#endif /* INT_H */
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