hes@ecsvax.UUCP (Henry Schaffer) (12/26/85)
<>I use the DEBUG program at widely enough spaced intervals that I don't
remember all the details of the commands, and the Quick Reference Card
supplied by IBM (in the Ver 2.10 manual) doesn't have enough information
to keep me going. I do use DEBUG enough that looking stuff up has become
a bit of a pain, and so I wrote up a cheat sheet (uh, ... make that a
Reference Card) that has what I need on it.
I am submitting it to the net because it might help others, and because
I hope that any errors or omissions will be brought (gently) to my
attention, and so I will have a more useful reference.
--henry schaffer
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DEBUG SUMMARY ver 0.3 H. E. Schaffer 12/85
n c state univ
INVOCATION: DEBUG [filespec] [parm1] [parm2]
COMMAND SUMMARY
Name Format Comments - (default register(s))
Assemble A[address] Default: starts at 100
Compare C range address For ending address in range, use offset only.
(DS)
Dump D[{address|range}] Default: Starts at 100 or after previous D.
(DS)
Enter E address [list] With no list enter 1-2 hex chars after prompt;
space bar to advance, - to back up,
Enter key to end command. (DS)
Fill F range list Reuses list if list shorter than range. (DS)
Go G[=address] [address[address...]] Up to 10 breakpoints.
Hexarithmetic H value value
Input I portaddress Displays byte read.
Load L[address[drive sector sector]] (CS)
Move M range address (DS)
Name N filespec [filespec]
Output O portaddress byte
Quit Q
Register R [registername] Default: shows all registers and flags.
Search S range list (DS)
Trace T[=address][value] Default: (CS, IP); one instruction.
Unassemble U[{address|range}] Default: starts at 100 or after last U.
Will complete last instruction. (CS)
Write W[address[drive sector sector]] BX, CX have no. of bytes (CS)
^low order
Notes
Commands are case insensitive, given after the DEBUG "-" prompt.
Ctrl-Break to end a command.
Ctrl-Num Lock for No-Scroll (any other char to restart).
PARAMETER DEFINITIONS
address [{seg reg|seg addr}:] offset
byte 1-2 hex chars
drive single digit 0 for A, 1 for B, etc. see Load, Write
filespec [drive:][path]filename[.ext] see Name
hex char 0 through 9, A through F (case insensitive)
list {byte|string} ...
port address value see Input, Output
range address{{ |,}address | L value}
^offset ^for 10000 use 0
only
registername AX BX CX DX SP BP SI DI DS ES (case see Register
SS CS IP PC F insensitive)
sector sector really sector sectors(involved) see Load, Write
^value ^value (values 1-3 hex chars)
string char(s) in single or double quotes
can use opposite type within the other
to use same type within - double it
value 1-4 hex chars
Notes
Commands and parameters may be delimited. Consecutive hex values
must be separated by a delimiter.
[ ] item(s) enclosed are optional
{ | } choose one of the items
... repetition of the previous item allowed