Worksheetsit 331 4
Total questions: 10
Worksheet time: 6mins
The instructions that change the sequence of execution are
conditional instructions
b) logical instructions
c) control transfer instructions
d) data transfer instructions
The control transfer instructions are divided into
a) explicit and implicit control transfer instructions
b) conditional and unconditional control transfer instructions
c) auto control and self control transfer instructions
d) all of the mentioned
MOV A, @ R1 will:
copy R1 to the accumulator
.copy the accumulator to R1
copy the contents of memory whose address is in R1 to the accumulator
copy the accumulator to the contents of memory whose address is in R1
Which of the following instructions will move the contents of register 3 to the accumulator?
MOV 3R, A
MOV R3, A
MOV A, R3
MOV A, 3R
Which of the following statements will add the accumulator and register 3?
ADD @R3, @A
ADD @A, R3
ADD R3, A
ADD A, R3
Which of the following commands will move the number 27H into the accumulator?
MOV A, #27H
MOV A, P27
MOV A, 27H
MOV A, @27
If SUBB A,R4 is executed, then actually what operation is being applied?
a) R4+A
b) R4-A
c) A-R4
d) R4+A
Which segment register is being used in the given instruction?
MOV CX , SS: [BX]
Extra Segment Register (ES)
Code Segment Register (CS)
Stack Segment Register (SS)
None of the Above
Which addressing mode is being used in the given instruction?
MOV AX, [1234H]
Base Addressing Mode
Immediate Addressing Mode
Register Addressing Mode
Direct Addressing Mode
mov a, b ,this instruction belongs to which addressing mode
register
direct
indirect
index
