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In string manipulation, one of general-purpose register can be used in loop, shift/rotate instruction, this is: O BH,BL OCH,CL O AH,AL

In string manipulation, one of general-purpose register can be used in loop, shift/rotate instruction, this is: O BH,BL OCH,CL O AH,AL

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Microprocessor 8086
In string manipulation, one of general-purpose register can be used in loop, shift/rotate instruction, this is: O BH,BL OCH,CL O AH,AL O DH,DL O Skip
Transcribed Image Text:In string manipulation, one of general-purpose register can be used in loop, shift/rotate instruction, this is: O BH,BL OCH,CL O AH,AL O DH,DL O Skip
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Please refer below for your reference:

8086 microprocessor:

In string manipulation one of  gneral purpose register is usd for loop,shift/rotate instructions , 

Since execution unit of 8086 microprocessor consists of General Purpose registers and there are 8 general purpose registers, i.e., AH, AL, BH, BL, CH, CL, DH, and DL.

All these registers can be used in pairs to store 16bit data. The valid register pairs are AH and AL, BH and BL, CH and CL, and DH and DL.

 

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