Write the use of Z bit in opcode?
Posted in Microprocessors Interview Questions
It is used by REP instruction. Z bit helps to control the loop. It will be repeated the number of items indicated by the CX register or until Z bit dose not match the Zero flag whichever occurs first.
Post Your Answer!
Send This to a Friend
← What is the use of V bit in opcode ?
How the execution time of an instruction is calculated? →
Related Interview Questions
Write about your achievements ? 02.12.08
Your achievements during your last jobs communicate that this is what you did for your last employers and this is what you can do if they hire you. So, write yo...
What is the use of V bit in opcode ? 14.11.08
It is used by shift and rotate instructions to determine the number of shifts. V bit is set to 0 if the shift count is to be 1. V bit is set to 1 if the CL regi...
What is the use of D bit in opcode? 14.11.08
D bit: It is used in double operand instruction. It is used to indicate whether the register specified by REG is the source operand (D=0) or the destination o...
What is the use of ‘W’ bit in opcode ?. 14.11.08
W bit in op-code : If an instruction in 8086 can operate on either a byte or a word , the op-code includes a W-bit which indicates whether a byte ( W =0 ) or a...
C# provides a default constructor for me. I write a constructor that takes a string as a parameter, but want to keep the no parameter one. How many constructors should I write? 25.04.08
Two. Once you write at least one constructor, C# cancels the freebie constructor, and now you have to write one yourself, even if there’s no implementation in...
C# provides a default constructor for me. I write a constructor that takes a string as a parameter, but want to keep the no parameter one. How many constructors should I write 16.04.08
Two. Once you write at least one constructor, C# cancels the freebie constructor, and now you have to write one yourself, even if there’s no implementation in...
What is an asychronous write ? 03.04.08
It is a write to disk that may occur before or long after a commit. The write is controlled by the buffer manager....
What is the difference between Debug.Write and Trace.Write? 19.01.07
The Debug.Write call won't be compiled when the DEBUGsymbol is not defined (when doing a release build). Trace.Write calls will be compiled. Debug.Write is for...
Differentiate between functions read() and write(). 18.07.06
Functions read() and write() are used for reading and writing blocks of binary data to a file. Their prototypes are istream &read(unsigned char *buf, int num...
What is Write Command ? 21.06.06
The write command enables you to write an actual message on the other terminal online. You have to issue the write command with the login ID of the user with wh...
Thursday, February 26, 2009
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment