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Desc: Generated after each instruction if TF (trap flag) is set; TF is cleared on invoking the single-step interrupt handler
Notes: Interrupts are prioritized such that external interrupts are invoked after the INT 01 pushes CS:IP/FLAGS and clears TF, but before the first instruction of the handler executes. Used by debuggers for single-instruction execution tracing, such as MS-DOS DEBUG's T command
See Also: INT 03"CPU"
Category: CPU-Generated - Int 01h - C
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