Debug Manual

Sample Debug Sessions
Debug Manual—421921-003
F-16
TNS Program Example
= Command
In the following example, we show how the = command complements other Debug
commands. In this case, we show that the output octal address specified in the FN
command, can be specified with the = command to convert the octal address to a
hexadecimal address. When we specify the address to the = command, note that it is
the same one used in the modify command. If we specify the data found at the location
to the = command, we find "bc," the characters entered in the FN command above.
If we want to find a specific bit pattern and are not interested in the other bits, we can
use the mask. In the following example we look for a "c" in the second byte of the 16-
bit word and ignore the other bits.
Note below that the "x" of the “xc” is ignored. The 0x62, (binary "b") is also ignored
when finding the match to our search.
We resume the program and enter a different data pattern from what is contained in
segments 1 and 2. The selectable segment 17 is longer than segment 1 or 2. We use
this to show some variations on the commands.
050,03,00013-=%027760
= %027760 #12272 0x2FF0 '/.'
050,03,00013-= 0x6263
= %061143 #25187 0x6263 'bc'
050,03,00013-fn q 0, 'xc' & 0x00ff
%000025: 0x6263
050,03,00013 (FN)-
%027760: 0x6263
050,03,00013 (FN)-
050,03,00013-r
enter some data
0123456789
DEBUG P=%000177, E=%000207, UC.%00-BREAKPOINT-
050,03,00013-?
USE SEGMENT ID = %000021
BASE STANDARD IN
BASE STANDARD OUT
TERM \M5.$ZTN00.#PTAZJAC
PRV = OFF