PIP problem solved on Apple ][ CP/M

From: Steven N. Hirsch <shirsch_at_adelphia.net>
Date: Tue Apr 22 06:43:00 2003

On Mon, 21 Apr 2003, Vintage Computer Festival wrote:

> I was finally able to devote some time to my Apple CP/M issues and figured
> it out.
>
> It turns out that the version of MS CP/M that I'm using has got the device
> identifiers correct, even though Steve Hirsch warned that they were
> reversed in Microsoft's implementation. I apparently have a version where
> it is fixed.
>
> I first connected up my laptop to the Super Serial Card in slot #2 and
> then tried to PIP RDR:=B:file. I got a message to the effect that the
> RDR: device cannot be written to. Then I tried to get slick and use STAT
> to change the RDR: device to what PUN: was pointed to. That didn't work.
> Then I decided to just try PIPing to the PUN: device and it took, but I
> didn't see anything across the serial port.
>
> A little more digging and reading and I verified that, as Steve said, the
> Apple ][ CP/M standard is for a serial card in slot 2. In fact, the
> documentation I read indicated that the hardware configuration pretty
> much matches that of Apple Pascal. So I did a STAT DEV: to show me what
> devices were connected where. RDR: was set to PTR: and PUN: was set to
> :PTP (presumably Paper Tape Reader and Paper Tape Punch respectively). So
> then I did a STAT VAL: to see what the possible connections were for each
> device. PUN: could be TTY: PTP: UP1: UP2:
>
> I thought for a second and then figured it would be worth a try to see if
> UP2: stood for the device in slot 2. Sure enough it did, and when I tried
> a PIP to PUN: it worked.

Bingo! That's the bit I couldn't recall from my own (mis)adventures with
the Softcard IIe. I knew that it involved using the second instance (or
opposite) of ... something (twenty years is a lot of brain cells into the
bit-bucket). Glad you have it going.

>
> So I was able to PIP the files directly from disk over the serial port to
> my laptop. Very convenient.
>

No doubt you are having to use slow baud rates to avoid character loss,
correct?

> There apparently is a utility that allows you to copy files from CP/M
> disks to Apple DOS disks but it must have come on a DOS utility disk that
> I just don't have.

There is a free utility floating around (name slips my mind) which can
copy between DOS <--> ProDOS <--> Pascal <--> CP/M diskettes. Perhaps
someone else can think of the name?

Steve
Received on Tue Apr 22 2003 - 06:43:00 BST