Tandy 1000 MS-DOS User Manual

Chapter 13/ The DEBUG Utility
HEX
\ '
, '
I '
i
I ,
,--;
[ I
H valuel value2
Performs hexadecimal arithmetic on valuel and value2.
Parameters
valuel value2
DEBUG first adds
valuel and value2 and then subtracts value2
from valuel. The
sum and difference are displayed on one line.
Example
H 19F 1 QJ A I ENTER I
causes DEBUG to perform the arithmetic and displays the
results:
QJ2A9 QJQJ95
The sum of 19F and lOA is 02A9, and the difference is 0095.
INPUT
,...,
I I portaddress
..--l Inputs and displays one byte from the specified port.
i :
Parameters
l_ ; porta<jdress is a 16-bit port address in hexadecimal.
Example
,
I \
I 2F8 I ENTER I
causes DEBUG to input the byte at Port 2F8 and display it. If
the byte is 42, DEBUG displays:
42
277

Tandy 1000 MS-DOS Specifications

General

Brand	Tandy
Model	1000 MS-DOS
Category	Desktop
Language	English