MOV A, #56H
MOV R1, #50H
MOV 50H, # 45H
XCHD A, @R1
What is the result at A, R1?
MPC quiz
Quiz
•
Computers
•
University
•
Hard
thyla shri
Used 3+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
MOV A, #56H
MOV R1, #50H
MOV 50H, # 45H
XCHD A, @R1
What is the result at A, R1?
56H, 45H
45H, 50H
50H, 56H
45H, 56H
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
MOV 45, #4FH
MOV R0, 45H
INC R0
MOV @R0, #30H
What is the location value of R0 and the content at that place?
45H, 4F
50H, 30H
30H, 50H
50H, 45H
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is the Address (SFR) for TCON, SCON, SBUF, PCON and PSW respectively?
88H, 98H, 99H, 87H, 0D0H
98H, 99H, 87H, 88H, 0D0H
0D0H, 87H, 88H, 99H, 98H
87H, 88H, 0D0H, 98H, 99H
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Why is the speed accessibility of external data memory slower than internal on-chip RAM?
Due to multiplexing of lower order byte of address-data bus
Due to multiplexing of higher order byte of address-data bus
Due to demultiplexing of lower order byte of address-data bus
Due to demultiplexing of higher order byte of address-data bus
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which general purpose register holds eight bit divisor and store the remainder especially after the execution of division operation?
Register
B-Register
Registers R0 through R7
All of the above
25 questions
Equations of Circles
Quiz
•
10th - 11th Grade
30 questions
Week 5 Memory Builder 1 (Multiplication and Division Facts)
Quiz
•
9th Grade
33 questions
Unit 3 Summative - Summer School: Immune System
Quiz
•
10th Grade
10 questions
Writing and Identifying Ratios Practice
Quiz
•
5th - 6th Grade
36 questions
Prime and Composite Numbers
Quiz
•
5th Grade
14 questions
Exterior and Interior angles of Polygons
Quiz
•
8th Grade
37 questions
Camp Re-cap Week 1 (no regression)
Quiz
•
9th - 12th Grade
46 questions
Biology Semester 1 Review
Quiz
•
10th Grade