Tandy 1000 MS-DOS Reference Manual page 308

Chapter 13/ The DEBUG Utility
Examples
T
[ENTER
I
causes DEBUG to display the registers and flags for the current
instruction. If the current instruction is 04BA:OllA, DEBUG
might display:
AX=0E00 BX=00FF CX=007 DX=0177
SP=039D BP=0000 SI=005C DI=0000
DS=04BA ES=04BA SS=04BA CS=04BA
IP=011A NV UP DI NG NZ AC PO NC
04BA:011A CD21 INT 21
T=011A 1 0
[ENTER
I
DEBUG executes 16 (10 hex) instructions beginning at OllA in
the current segment and displays the registers and flags after
each instruction.
UNASSEMBLE
U
[address]
U
[range]
Disassembles instructions and displays their addresses, their
hexadecimal values, and the source statements that correspond
to them.
Parameters
address is the address of instructions to be disassembled.
range is the number of bytes to disassemble.
Notes
• The display of disassembled code looks like a listing for an
assembly language source file. The U command, without
parameters, starts immediately following the end of the last
disassembled memory. If you specify address, instructions are
disassembled beginning with address.
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