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What is SUBB instruction in 8051 microcontroller?

All Questions › Category: Embedded System › What is SUBB instruction in 8051 microcontroller?
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CS Electrical And Electronics Staff asked 4 years ago

I need short information.

1 Answers
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CS Electrical And Electronics Staff answered 4 years ago

Its function is to subtract with the barrow. Subtract the source-byte and the carry flag from the accumulator and set the result in the accumulator.

Example:

MOV A, #45H
CLR C
SUBB A, #22H