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X-Hacker.org- TASM 2.x / MASM 6.x Assembly Language - <b>int 03h (3) breakpoint</b> http://www.X-Hacker.org [<<Previous Entry] [^^Up^^] [Next Entry>>] [Menu] [About The Guide]
INT 03h (3)              Breakpoint

    INT 3 is the breakpoint interrupt.

    Debuggers use this interrupt to establish breakpoints in a program
    that is being debugged.  This is normally done by substituting an INT
    3 instruction, which is one byte long, for a byte in the actual
    program.  The original byte from the program is restored by the
    debugger after it receives control through INT 3.

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