Microprocessors | Matching Type Questions | Electricalvoice

Microprocessors | Matching Type Questions

Q. Match the items given in List I and those in List II. Select your answers using the codes given in the question.

List I List II
Instruction Operation
A. PCHL 1. Exchange the top of the stack with the contents of HL pair
B. SPHL 2. Exchange the contents of HL with those of DE pair
C. XTHL 3. Transfer the contents of HL to the stack pointer
D. XCHG 4. Transfer the contents of HL to the programme counter

Codes:       A     B     C     D

(a)             3       4     1     2

(b)             3       4     2     1

(c)             4       3     2     1

(d)             4      3     1      2

Answer
(d)

Q. Match the items given in List I and those in List II. Select your answers using the codes given in the question.

List I List II
Addressing mode Instruction
A. Implicit addressing  1. JMP 3FAO H
B. Register-indirect 2. MOV A,M
C. Immediate 3. LDA 03FC H
D. Direct addressing 4. RAL

Codes:       A     B     C     D

(a)             4       1     2     3

(b)             4       2     1     3

(c)             3       2     1     4

(d)             3      1     2      4

Answer
(b)

Q. Match the items given in List I and those in List II. Select your answers using the codes given in the question.

List I List II
Instruction Type of addressing
A. MOV A,M 1. Direct addressing
B. LXIH, E400 H 2. Register addressing
C. LDA F1CD H 3. Implicit addressing
D. CMC 4. Register Indirect addressing
  5. Immediate addressing

Codes:       A     B     C     D

(a)             5       4     1     3

(b)             4       5     3     1

(c)             5       4     2     3

(d)             4      5     1      3

Answer
(d)
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