The debug command U
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Retrieve the assembly program instructions from the disk
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Retrieve the assembly program instructions from the RAM
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Convert the machine code stored in memory into assembly equivalent
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none of the above
Reveal answer
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C
Correct answer
Explanation
In assembly debuggers (like DOS Debug), the 'U' command (Unassemble) disassembles machine code from memory back into readable assembly mnemonics.
AI explanation
In DOS/DEBUG.exe, the U (Unassemble) command reads raw machine code bytes already present in memory and translates/disassembles them back into their human-readable assembly language equivalent (mnemonics + operands). It doesn't fetch code from disk (that's the 'L'/Load command's job), and it isn't simply retrieving instructions unchanged — it performs the disassembly translation.