What is the function of trap flag in 8086 microprocessor?
what is the function of trap flag in 8086 microprocessor?
Replies
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swati vermaTrap flag when set then single step interrupt will occur after the next instruction.
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Trieu Vi Nguyenhow to enable Trap flag? which instruction can do that?
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rahul69#-Link-Snipped-# There is no specific instruction to set Trap flag. However, u can set it by changing the Trap Flag Bit of the flags register.
Also, The Trap Flag is mainly used for debugging purposes.
Hope it helps!!! -
simplycoder
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Ankita KatdareMore amazingly, this thread has thousands of views. It only goes to say engineers are searching for the basics and CE is providing them the answers. 👍
So, here's my two cents:
Trap Flag is used for on-chip debugging. Debuggers can use it for step-by-step execution of a computer program. If 8086 does a type-1 interrupt, Trap Flag is reset. Therefore, the single-step mode will be disabled during the interrupt-service procedure. -
Shanu Verma
will any geek tell me what the hell on earth single step execution means ?
You are reading an archived discussion.
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