Debug Manual

Sample Debug Sessions
Debug Manual—421921-003
F-40
Native Program Example
breakpoint that is at the end of the procedure. Using the ? command, we see that
segment 1 is being used.
Displaying Data Using Q Address
We can display some data in the selectable segment using the Q-address mode. The
extended indirect pointer, SP, was used to store the ARRAY_NUM in location 0 of the
selectable segment. We can separate the characters by using the C grouping option
and the hexadecimal output format.
We can also see the results of moving the procedure's buffer into the selectable
segment. Because the data was stored at byte offset 41, we need to round down to the
previous even byte (40). We then divide the offset 40 by 2 to convert to a 16-bit word
address.
Displaying Output in Hexadecimal
Note that the output address, for the commands we used above, is given as 16-bit
word offsets in octal. To see the hexadecimal byte offset, we can use the DN
command. However, we need to first get the 32-bit address of the selectable segment.
AMAP Command
We use the AMAP command to get the 32-bit address of the selectable segment.
050,03,00266-r
enter some data
abcdefg
DEBUG $PC=0x70000568 -RISC BREAKPOINT ($PC: 0x70000568)-
050,03,00267-?
USE SEGMENT ID = %000001
BASE STANDARD IN
BASE STANDARD OUT
TERM \M5.$ZTN00.#PTUGRB0
PRV = OFF
050,03,00266-d q 0, c :h
%000000: 01 00
050,03,00266-a q #40/2, #12/2, c
%000024:.abcdefg....
050,03,00266-AMAP Q
Address: 0x00080000
Kind = 0x0013: Unknown
Attributes: none