Re: Making an Apple IIe and an IBM talk

[Jemather <Jemather@concentric.net>]

rubywand@swbell.net wrote:
> 
> Jemather <Jemather@concentric.net>  writes ...
> 
> <<
> Hello, and i'm doing a sci project where i have to take AppleSoft
> BASIC
> program and convert it to QbASIC or Vis BASIC Also i have a Hayes
> Micromodem IIe and if anyone out there know anyway to make it work
> like
> a null-modem ...
> >>
> 
>      We did something like this some years ago. As I recall,
> transferring Applesoft programs to Q-BASIC or GW-BASIC was mainly a
> matter of moving a text copy of the program to the PC. On the PC, you
> bring in the program-- I'm pretty sure-- by inputting the text under
> BASIC. (Creating a text copy of an Applesoft BASIC program is easy.
> You just list the program to a Text file.)
> 
>      BASICs available on a PC are not 100% compatible with Applesoft.
> Once you can list the Applesoft program on the PC under GW-BASIC (or
> whatever), you will need to edit the program.
> 
>     It will be necessary to replace some Applesoft commands with
> their PC BASIC equivalents. Some commands are very similar but differ
> slightly in syntax; and you are likely to find that some conventions,
> such as the numerical value of "True" from boolean tests, are
> different.
> 
>      The more an Applesoft program is "pure BASIC", the easier it
> will be to get it working on a PC. Programs which employ lots of
> PEEKs and POKEs, do monitor CALLs, and access other features specific
> to the Apple II will be more troublesome.
> 
>      The mechanics of doing an Apple-to-PC file transfer are pretty
> simple. In our case, the PC was in a research lab several miles away;
> so, we sent the programs via modem. If the PC is in the same room,
> using a NULL modem is best.
> 
>      A "NULL modem" is not some kind of hairy electronic device with
> IC's, transistors, etc.. It is just a back-to-back connector which
> crosses Receive, Transmit, etc. lines.
> 
>      To use a NULL modem, a modem cable from one computer connects to
> one side and a modem cable from another computer connects to the
> other side. You start a telecom program on each computer-- such as
> Telemate on the PC and Modem MGR on the Apple II. If the baud rate
> settings are the same, you can transfer files back and forth.
> 
>      There would seem to be no good reason to transform a modem into
> a NULL modem. NULL modems are inexpensive. You can get one at Radio
> Shack for a few dollars.
How do i make a "text copy" of a program?