Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

 ◄Summary►                                   ◄Up► ◄Contents► ◄Index► ◄Back►
────────────────────────────────────────────────────────────────────────────
 
     The single-byte instruction CCh enables a debugger to establish a
     breakpoint in an executing program. The debugger writes CCh to the
     first byte of the instruction at the desired breakpoint, then
     allows the program to run. By trapping the call to Int 03h
     triggered when the processor executes the breakpoint instruction,
     the debugger recovers control from the executing program.
                                    -♦-