8-bit Software Disc Magazine (c) Duncan Webster 1991
Address: 7, Ashdale, Thringstone, Leicestershire LE6 4LW
Issue 12 May 1991
User: 709 H S Williams
Basic to SWR Image converter
From the author of Urban War (issue 7), we have a new utility this
time from Hugh Williams. It is a ROM IMAGE which you should load into
Sideways RAM (filename = R.BASDUMP). Full instructions are provided
below. Please make an extra special effort to review this program
fully if you have the necessary SWR facilities on your beeb. BASDUMP
is for your own use ONLY, and should not be re-copied or re-submitted
to any other organisation without the express permission of the
author. I'm sure you will find this utility useful, informative,
helpful, origional, and probably full of errors (oops - sorry Hugh -
The BASDUMP utility was inspired by a short article in the 8-bit
section of the BAU magazine. Basically, it saves a single basic
program to SWR. Starting at PAGE and dumping (TOP-PAGE)+1 pages of
memory to sideways RAM. The listing in the magazine was for the
Master/Compact and bears next to no resemblence to the assembley cose
that I have written. To install BASDUMP - you should load the
filename R.BASDUMP on the issue 12 disc into your computers Sideways
RAM banks. The commands for using BASDUMP are as follows ...
*RS - Save BASIC program to SWR
*RL - Restore BASIC program to normal memory and restore PAGE
to the value when *RS command was used.
*RC - Clears SWR socket - leaves code intact of course but clears
memory locations &8200 - &B000
MESSAGES issued by BASDUMP ...
SWR Bank Cleared Issued after successful *RS
Upload OK Issued after successful *RC
Download OK Issued after successful *RL
ERRORS issued by BASDUMP ...
Program Too Big! Unsuccessful *RS Command
Top Lower than Page Unsuccessful *RS Command
No Program in Memory Unsuccessful *RL Command
NOTES to bear in mind ...
*RC is always successful assuming that the SWR bank in question has
not been write protected. After A *HELP the ROM will tell you if
there is a program already saved in SWR.
The program will not warn you or stop you if you *RS whilst there is a
program already saved, it will just overwrite the old program.
The program and code in SWR will stay there even during power-off if
your SWR is battery backed up (obvious really)
Workspace = &70-&75
If any member makes use of this program, then please write in and let
me know what you think, plus the improvements you think could be made.
Any problems encountered when using the program, please report to
8-bit Software marking your envelope BASDUMP QUERY. I hope in the
meantime that you find BASDUMP useful.