Q70749: Debug: "U 0 FFFF" Produces Incorrect Results

Article: Q70749
Product(s): Microsoft Disk Operating System
Version(s): MS-DOS:2.x,3.x,4.x,6.0,6.2,6.21,6.22
Operating System(s): 
Keyword(s): 
Last Modified: 17-DEC-2000

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The information in this article applies to:

- Microsoft MS-DOS operating system versions 2.11, 3.1, 3.2, 3.21, 3.3, 3.3a, 4.0, 4.01, 6.0, 6.2, 6.21, 6.22 
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SUMMARY
=======

The UNASSEMBLE command in the Debug utility has the syntax "U [range]" and is
used to display the unassembled information contained in the specified range.
For example, the command "U 0 8" displays the unassembled information in bytes 0
(zero) through 8.

The command displays incorrect results if the specified range is bytes 0 through
FFFF. DEBUG displays only the unassembled representation of the byte at offset
0, rather than the bytes 0 through FFFF.

Additional query words: 6.22 2.11 3.00 3.20 3.30 3.30a 4.00 4.01 4.01a 5.00 5.00a 6.00 6.20

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Keywords          :  
Technology        : kbMSDOSSearch kbMSDOS321 kbMSDOS400 kbMSDOS320 kbMSDOS330a kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600 kbMSDOS310 kbMSDOS330 kbMSDOS401 kbMSDOS211
Version           : MS-DOS:2.x,3.x,4.x,6.0,6.2,6.21,6.22

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