Write a MC68000 Assembly Program the fulfils the following requirement. You must write comments for each line of your code. Your program is sharing 8 logical variables (from J to Q, see below figure) with another program, where each logical variable is 1-bit and is located in D3 Register. Assume all logical variables are set to 1.
Write a MC68000 Assembly Program the fulfils the following requirement. You must write comments for each line of your code. Your program is sharing 8 logical variables (from J to Q, see below figure) with another program, where each logical variable is 1-bit and is located in D3 Register. Assume all logical variables are set to 1.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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Transcribed Image Text:Write a MC68000 Assembly Program the fulfils the following requirement. You must write
comments for each line of your code.
Your program is sharing 8 logical variables (from J to Q, see below figure) with another
program, where each logical variable is 1-bit and is located in D3 Register. Assume all
logical variables are set to 1.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit o
JKLM NOPQ
• Your program should set logical variables J, and O, and clear logical variables M and N.
o Save the original logical variable to the stack before making any changes.
After the modification, your program should check if logical variables J and O are
correctly set.
o If set correctly, your program should exit.
o If not set correctly, your program should try again.
Before modifying any logical variables, you must check if the logical variable is not being
used by another program.
o Define your own test flag memory location.
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