RE: Transfer a 8250 diskette

From: Ed Johnson <>
Date: Sat, 5 Nov 2011 14:59:23 -0400
Message-ID: <0E7DE08809C94215B390671977AFFE7B@dell6400>
Commodore BASIC has a hard time will null strings. You have to use the
chr$(n) function. 

Best regards,
Ed Johnson
"What ever you do, don't look back." - God

-----Original Message-----
[] On Behalf Of
Sent: Saturday, November 05, 2011 7:34 AM
Subject: Re: Transfer a 8250 diskette

Hi all,

I am still working on the disk transfer.

I first want to try a software transfer by copying the data byte for byte.
I made this small program

10 nm$="8032-700-asc-ns"
20 open 2,8,2,"1:"+nm$+",p,r"
30 open 3,9,3,"0:"+nm$+",p,w"
40 get#2,a$
50 if st=64 then goto 80
60 print#3,a$;:goto 40
80 close 2:close 3
90 end

The program makes a copy, but the file size of the copy is smaller than the
original (Example: original 81 Blocks, copy 79 Blocks)

Is there an error in my program?

The source (8) drive is a 8250lp, destination (9) is a MicroPower 2000
(4040) and the computer is an 4032.

Or is it the difference in floppy formats?


Op Zo, 30 oktober, 2011 9:59 pm schreef Nate Lawson:
> On Oct 30, 2011, at 1:03 PM, wrote:
>> Hi all,
>> I want to transfer programs from a 8250 diskette. I have a CBM 4032, 
>> a 8250lp and a datassette.
>> I loaded the first program from disk and saved it to a tape. I read 
>> the  tape with MTAP in my PC and I could load the .tap into VICE.
>> So far so good. But the next program on the diskette freezes the PET, 
>> I  think because it's not a BASIC program but MC and it loads in an 
>> memory location not so good for my 4032. The programs on the disk are 
>> made for a CBM 700 series.
>> Is there a way to solve my problem?
> The ZoomFloppy with IEEE-488 plug attached can read from the 8250 drive.
> You'd just plug it in and read the file off with cbmcopy or the entire
> d82 image with d82copy.
> -Nate
> Message was sent through the cbm-hackers mailing list


       Message was sent through the cbm-hackers mailing list

       Message was sent through the cbm-hackers mailing list
Received on 2011-11-05 19:00:16

Archive generated by hypermail 2.2.0.