Subtract registers and borrow from accumulator, Electrical Engineering

Subtract Registers and Borrow from Accumulator

The  contents of the  register  and borrow  flag  are subtracted from   the contents of the accumulator and the  result is  stored  in the accumulator. The carry  flag behaves like the borrow flag in subtract operation. The instruction format is

SUB R                   (A - A- (R + Borrow)

Actually  the previous  borrow  is added to the subtrahend fist. Then  2  complement  of the results  is obtained and finally it is added to the accumulator to obtain  the final result of  the operation  similar  to SUB  instructions.

 

 

Posted Date: 4/4/2013 7:17:28 AM | Location : United States







Related Discussions:- Subtract registers and borrow from accumulator, Assignment Help, Ask Question on Subtract registers and borrow from accumulator, Get Answer, Expert's Help, Subtract registers and borrow from accumulator Discussions

Write discussion on Subtract registers and borrow from accumulator
Your posts are moderated
Related Questions
Define the XOR GATE - Microprocessor? The XOR GATE is a alike to an OR gate except for the instance when all the inputs are high. With a XOR gate when all the inputs are high t

Q. JFET Common Drain Amplifier? The common drain FET amplifier is similar to the common collector configuration of the bipolar transistor. A general common drain JFET amplifier

Light Triggering When  light is  thrown  on silicon the hole electron pair get excited an increases hence  the leakage  current of J 2   increases which  will increase I C1 a

What will I write in Inductor conclusion

expalin process of doping how to do doping

Q. A 10-kVA, 200:400-V, single-phase transformer gave these test results: • Open-circuit test (LVwinding supplied): 200V, 3.2 A, 450 W • Short-circuit test (HV winding suppli

Compact Disc - Read Only Memory. A CD-ROM is any compact disc which having computer data. These discs can store enormous amounts of data (up to 640 megabytes). If there is a large

Q. A four-pole dc generator is lap wound with 326 armature conductors. It runs at 650 r/min on full load, with an induced voltage of 252 V. If the bore of themachine is 42 cmin dia

list the key parameters to describe the ideal operational amplifier

For Sign Flag  CP ( Call on plus ) CM (Call on minus ) Instruction CP call  the subroutine  from the  specified  memory  location if  sign flag is not set or reset( S=0)