Motorola 680X0 Processor architecture-2 MCQ’s

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This set of Computer Architecture Multiple Choice Questions & Answers (MCQs) focuses on “Motorola 680X0 Processor architecture-2″.

1. As the instructions can deal with variable size operands we use ____________ to resolve this.
a) Delimiter
b) Size indicator mnemonic
c) Special assemblers
d) None of the mentioned

2. The starting address is denoted using _________ directive.
a) EQU
b) ORIGIN
c) ORG
d) PLACE

3. The instructions in 68000 can deal with operands of three different sizes.
a) True
b) False

4. The constant can be declared using ___________ directive.
a) DATAWORD
b) PLACE
c) CONS
d) DC

5. The Branch instruction in 68000 provides how many types of offsets?
a) 3
b) 1
c) 0
d) 2

6. The 68000 uses ____________ method to access I/O devices buffers.
a) Memory mapped
b) I/O mapped
c) Buffer mapped
d) None of the mentioned

7. To allocate a block of memory we use ___________ directive.
a) RESERVE
b) DS
c) DATAWORD
d) PLACE

8. The purpose of using DBcc as a branch instruction is __________
a) It provides two conditions to be satisfied for a branch to occur
b) It provides a counter to check the number of times the branch as taken place
c) It is used to check the condition along with the branch condition
d) None of the mentioned

9. ____________ instruction is used to set up a frame pointer for the subroutines in 68000.
a) CREATE
b) LINK
c) UNLK
d) FRAME

10. The LINK instruction is always followed by ____________ instruction.
a) MOV
b) UNLK
c) ORG
d) MOVEM

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