@node disable, cpu
@subheading Syntax

@example
#include <dos.h>

int disable(void);
@end example

@subheading Description

This function disables interrupts.

@xref{enable}.

@subheading Return Value

Returns nonzero if the interrupts had been enabled before this call,
zero if they were already disabled.

@subheading Portability

@portability !ansi, !posix

@subheading Example

@example
int ints_were_enabled;

ints_were_enabled = disable();
. . . do some stuff . . .
if (ints_were_enabled)
  enable();
@end example