Gate Application COA Morris Mano [ Numerical on Addressing Modes]

Question

An instruction is stored at location 300 with its address fields at location 301. The address field has the value 400. A processor register RI contain the number 200.

Evaluate the effective address if the addressing mode of the instruction is (a) Direct (b) Immediate (c) Relative (d) Register Indirect (e) Index with RI as the Index register.

Comments

no sir i was searching this . this was not answered

see sir i havent posted today it was posted by me many days ago only .

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Answer 1

a. Direct Addressing, Addess is given in instruction, so EA = 400
b. Immediate Addressing, Value is given in Instruction, so EA is the address of the address filed of the instruction. EA = 301
c. Relative Addressing, EA = Next Instruction Address - 400 For PC relative (Base relative also possible). So, probably 304 - 400 = -negative?
d. Register indirect, EA = ?
e. Index, EA = 200 + 400 = 600.

Comments

i am not understanding it sir :((((

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sir please explain little bit :((

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I have added- There is nothing more to explain as these are just definitions of addessing modes. But I guess question is having some part missing.

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https://gateoverflow.in/81012/instruction-stored-location-with-address-field-having-value

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other people also ask same type of problem sir see so sir please dont mind if i asked i am also little child and a little boy.

i dont know thats why i ask and you know me sir very well now:)

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register indirect you have not solved sir?

it will be

[ [ r400] ] = [ REGISTER INDIRECT] =200 ?

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Just what we are telling you..  this comment is extra.. if you got the explantion..then say a thanks..thats it.. maximum other people are boy of 22-24 here.. dont make unnecessary emotional comments.. no offence but you are making a bad impression abt yourself..WHY?

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ok uddipto sir thank you so much:) and thanking to arjung sir i dont want to say anything more because arjun sir said me to not to say anything personal than asking and answering the problems of subjects:)