Auxiliary carry is set during which condition?(a) When carry is generated from D3 to D4(b) When carry is generated from D7(c) When carry is generated from both D3 to D4 and D7(d) When carry is generated at either D3 to D4 or D7This question was addressed to me in homework.My question is taken from Microcontroller (8051) in chapter Prototyping Embedded Devices of IOT

Auxiliary carry is set during which condition?(a) When carry is genera

1.	Auxiliary carry is set during which condition?(a) When carry is generated from D3 to D4(b) When carry is generated from D7(c) When carry is generated from both D3 to D4 and D7(d) When carry is generated at either D3 to D4 or D7This question was addressed to me in homework.My question is taken from Microcontroller (8051) in chapter Prototyping Embedded Devices of IOT
Answer» The correct choice is (a) When CARRY is GENERATED from D3 to D4 To elaborate: When carry is generated from D3 to D4, it is SET to 1, it is used in BCD ARITHMETIC.

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