From: Spiro Trikaliotis (ml-cbmhackers_at_trikaliotis.net)
Date: 2006-12-21 16:41:22
Hello,
* On Mon, Dec 18, 2006 at 08:15:28AM +0100 I wrote:
> 10 OPEN 1,8,15
> 20 POKE 55,0:POKE 56,96:CLR:REM Make ROM for the image
> 30 AD=24576
> 40 FOR HI=224 TO 255
> 45 PRINT HI:REM Output as progress indicator
> 50 FOR LO=0 TO 255 STEP 32
> 60 PRINT#1,"M-R"CHR$(LO)CHR$(HI)CHR$(32)
> 70 FOR VAL=0 TO 31
> 80 GET#1,A$:POKE AD,ASC(A$+CHR$(0))
> 90 AD=AD+1
> 100 NEXT VAL
> 110 NEXT LO
> 120 NEXT HI
Just for the records: This program does the following: It reads the ROM
from $E000-$FFFF.
> Running this program (with the -03 ROM installed in your floppy #8), you
> will see a counter going from 224 to 255. After the program stopped,
> the image of the ROM will be at $6000-$9FFF.
So, the higher ROM will be in $6000-$7FFF. If one wants to get the full
ROM dump, one should change line 40 to
40 FOR HI=192 TO 255
Thus, in the original version of the program, to save the ROM, change
the line
> POKE 43,0:POKE 44,96:POKE 45,0:POKE 46,160:SAVE "ROM-03",8
to read as follows:
POKE 43,0:POKE 44,96:POKE 45,0:POKE 46,128:SAVE "ROM-03",8
If you modified line 40 as given above, you have to use the original
version of the line.
Nevertheless, I was able to extract your ROM out of the file you send
me. It is exactly an original -03 ROM as found on FUNET - erm,
zimmers.net. ;)
Regards,
Spiro.
--
Spiro R. Trikaliotis http://opencbm.sf.net/
http://www.trikaliotis.net/ http://www.viceteam.org/
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