William Levak wrote:
>
> Nobody has offered any additions to my list of Commodore Basic
> differences, unless I missed them while my e-mail was down. Also, nobody
> has filled in the missing CBM-II/B series information.
>
> Can some of you that have CBM-II/B series computers answer the following
> questions:
>
> 1. What is the load address for Basic programs? This is usually one byte
> past the start of Basic.
The basic load address is 0003 (in Bank 1)
10 REM --> ;0000 03 00 09 00 0a 00 8f 00 00 00
> 2. Are Basic programs relocated on loading or are they loaded onl at their
> saved address?
If I change the load address in the file
(;0000 13 00 19 00 0a 00 8f 00 00 00 )
it is still loaded at the same address, using both 'load"bar",8' and
'load"bar",8,1'
>
> 3. Are characters 96-127 the same as 32-63 as in the PET or the same as
> 192-223 as in later Commodore computers?
For the C6*0 and C7*0 those are the same as in the PET 8032
>
> 4. How much memory is available for Basic in the 128K and 256K version?
> If the bytes free is not given on power-up, then do the following:
> NEW:CLR:PRINT FRE(0)
Hm, this does print "0". Does not help much, but:
128k 256k
fre(0) -> 0 0
fre(1) -> 64089 64089
fre(2) -> 64187 64253
fre(3) -> 0 31487
fre(4) -> 0 64187
fre(5) -> 0 0
>
> 5. Does anyone have a list of control codes supported by CBM-II/B series?
Sorry, no. Need to inspect the ROM.
The above results have been achieved with the VICE emulator.
Andre
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