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C.2 CPU32BUG CUSTOMIZATION
The general procedure for customizing CPU32Bug is as follows:
1.
Copy the parameter area from the CPU32Bug EPROM to RAM by entering the
following command:
2.
Modify the parameters in RAM using the offsets shown in Table C-1. For example,
the CHECKSUM value would begin at location $4000 plus offset $0E, or $400E.
Thus the word at $400E must be changed to $FFFF so a new checksum value for the
customized CPU32Bug can be calculated. Enter the following command to change
the CHECKSUM value.
Change the SIGNON message to indicate customization has been performed. Change
the spaces after "Version
customized version number starting with 01 and <title> is the name of your company
or school/lab. Use the MS command with text input ('string').
3.
Create an S-record file of the changes on the host computer by entering the ALT-F1
key on the host computer terminal (for ProComm emulator program) to open a log
file. Enter the file name C32B1.MX and then complete the CPU32Bug DU
command by pressing <CR>. The offset of DC000 is required to create the S-records
with the proper starting address of $E0000.
4.
Create an S-record file of the rest of CPU32Bug on the host computer by entering the
ALT-F1 key on the host computer terminal (for ProComm emulator program) to
open a log file. Enter the file name C32B23.MX and then complete the CPU32Bug
DU command by pressing <CR>.
5.
If desired, the two S-record files can be edited on the host computer to remove the
"Effective address" lines at the beginning of the file and the CPU32Bug> prompt at
the end, but it is not required. If the two S-record files are concatenated into one file,
edit the first file to remove the S8 termination record at the end of the file.
M68CPU32BUG REV 1
CPU32Bug>BM E0000 E01FF 4000<CR>
CPU32Bug>MS 400E FFFF<CR>
1.01" to read ".XX
CPU32Bug>DU 4000 41FF 'C32B1.MX' ,,DC000<ALT-F1><CR>
CPU32Bug><ALT-F1><CR>
CPU32Bug>DU E0200 FFFFF 'C32B23.MX'<ALT-F1><CR>
CPU32Bug><ALT-F1><CR>
<title>", where "XX" is your
Close log file
Close log file
C-2
USER CUSTOMIZATION
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