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Recent questions tagged addressing-modes

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64
Memory Access-self doubt
what is the number of memory accessed required in register indirect mode index register mode base register mode pls explain in details with examples
what is the number of memory accessed required inregister indirect modeindex register modebase register modepls explain in details with examples
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68
Test Series
A two-word instruction "JMP 65" is located from the address 200010. What is the effective address computed if the instruction follows relative addressing mode? My answer is 2065, Why should it be 2067
A two-word instruction "JMP 65" is located from the address 200010. What is the effective address computed if the instruction follows relative addressing mode? My answer ...
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0 votes
1 answer
69
Effective address
Choose the correct formula for Effective Address calculation Base + (Size*Scale) +Displacement) (Base + Size)*Scale +Displacement Base + Size*(Scale +Displacement) (Base + Size)*(Scale +Displacement)
Choose the correct formula for Effective Address calculationBase + (Size*Scale) +Displacement)(Base + Size)*Scale +DisplacementBase + Size*(Scale +Displacement)(Base + Si...
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70
SELF DOUBT REGISTER REFERENCE
MOV R1 #23 HOW MANY REGISTER REFERENCES ARE REQUIRED?
MOV R1 #23 HOW MANY REGISTER REFERENCES ARE REQUIRED?
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5 votes
1 answer
71
Addressing Mode
Consider we have an instruction Load 1000. Given Memory and Register R1 as Follows. What is the actual value Loaded in the accumulator ? A. 1000 1400 1300 1000 B. 1400 1300 1000 1000 C. 1000 1300 1400 1000 D. 1300 1000 1400 1000
Consider we have an instruction Load 1000. Given Memory and Register R1 as Follows.What is the actual value Loaded in the accumulator ?A. 1000 1400 1300 1000B. 1400 1300...
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72
Addressing modes + pipelining
I got Option D , and Are we saving 1 cycle by replacement ? ( if yes then may be solved it correct else i am wrong somewhere )
I got Option D , and Are we saving 1 cycle by replacement ? ( if yes then may be solved it correct else i am wrong somewhere )
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1 votes
0 answers
73
self doubt
How stack addressing is related to Reentranecy ,can anyone explain it?
How stack addressing is related to Reentranecy ,can anyone explain it?
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1 answer
76
Self Doubt
how we generally write addressing mode in instruction. eg. immediate addressing mode: add #5 1. Direct 2. Indirect 3. Register 4. Register Indirect 5. Indexed 6. Based 7. Displacement 8. Stack
how we generally write addressing mode in instruction. eg. immediate addressing mode: add #51. Direct2. Indirect3. Register4. Register Indirect5. Indexed6. Based7. Displa...
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80
Addressing Instructions
Are memory to memory instructions allowed? Eg. ADD [123], [345] or MOV [123], [343] If not, then why?
Are memory to memory instructions allowed?Eg. ADD [123], [345] or MOV [123], [343]If not, then why?
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4 votes
2 answers
83
Instruction Addressing
A computer has 170 different operations. Word size is 4 bytes one word instructions requires two address fields. One address for register and one address for memory. If there are 37 registers then the memory size is ______________(in KB). Ans. 256KB
A computer has 170 different operations. Word size is 4 bytes one word instructions requires two address fields. One address for register and one address for memory. If t...
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1 votes
1 answer
86
Addressing mode
Plz describe Which addressing mode does this following line represents and how? Index addressing mode, $X\left ( R_{1} \right )$, where $X$ is an offset represented in $2$'s complement $16$ bit representation
Plz describeWhich addressing mode does this following line represents and how?Index addressing mode, $X\left ( R_{1} \right )$, where $X$ is an offset represented in $2$'...
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2 votes
1 answer
87
Addressing Mode
Adding a constant to the content of register Is it a)Immediate mode or b) Indexed mode?
Adding a constant to the content of registerIs ita)Immediate mode or b) Indexed mode?
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4 votes
2 answers
89
CO Addressing
A computer has 32 bit instruction and 12 bit address . If there are 250 two address instructions , the no. of one -address instructions can be ..... Plz formulate a generic solution for this with diagram .
A computer has 32 bit instruction and 12 bit address . If there are 250 two address instructions , the no. of one -address instructions can be .....Plz formulate a generi...
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