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Created page with "<strong>INT86, INT86X, INTDOS, INTDOSX</strong> ==SYNOPSIS== #include <dos.h> int int86(int intno, union REGS * inregs, union REGS * outregs) int int86x(int intno, union..."
<strong>INT86, INT86X, INTDOS, INTDOSX</strong>
==SYNOPSIS==
#include <dos.h>
int int86(int intno, union REGS * inregs, union REGS * outregs)
int int86x(int intno, union REGS inregs, union REGS outregs, struct SREGS * segregs)
int intdos(union REGS * inregs, union REGS * outregs)
int intdosx(union REGS * inregs, union REGS * outregs, struct SREGS * segregs)
==DESCRIPTION==
These functions allow calling of software interrupts
from C programs. <strong>Int86</strong>() and <strong>int86x</strong>() execute the
software interrupt specified by <strong>intno</strong> while <strong>intdos</strong>()
and <strong>intdosx</strong>() execute interrupt 21(hex), which is the
MS-DOS system call interrupt. The inregs pointer
should point to a union containing values for each of
the general purpose registers to be set when executing
the interrupt, and the values of the registers on
return are copied into the union pointed to by outregs.
The _�x versions of the calls also take a pointer to a
union defining the segment register values to be set on
execution of the interrupt, though only ES and DS are
actually set from this structure.
==SEE ALSO==
segread
==SYNOPSIS==
#include <dos.h>
int int86(int intno, union REGS * inregs, union REGS * outregs)
int int86x(int intno, union REGS inregs, union REGS outregs, struct SREGS * segregs)
int intdos(union REGS * inregs, union REGS * outregs)
int intdosx(union REGS * inregs, union REGS * outregs, struct SREGS * segregs)
==DESCRIPTION==
These functions allow calling of software interrupts
from C programs. <strong>Int86</strong>() and <strong>int86x</strong>() execute the
software interrupt specified by <strong>intno</strong> while <strong>intdos</strong>()
and <strong>intdosx</strong>() execute interrupt 21(hex), which is the
MS-DOS system call interrupt. The inregs pointer
should point to a union containing values for each of
the general purpose registers to be set when executing
the interrupt, and the values of the registers on
return are copied into the union pointed to by outregs.
The _�x versions of the calls also take a pointer to a
union defining the segment register values to be set on
execution of the interrupt, though only ES and DS are
actually set from this structure.
==SEE ALSO==
segread
