[Coco] PSG test code was Re: Sound/Speech Cart

[Alex Evans]

DEMO.BAS is for the sound/speech cartridge and waits for the onboard CPU to
indicate ready and will just wait on a machine that doesn't have a SSC.

SCALESSF.BAS is for the SuperSpriteFM+.

SCALES12.BAS is for a Symphony-12 or Philharmonic-12 (4x PSG chips, 12
voices).

I have the hardware for all of these and, for me at least, they work fine
on real hardware.

My test setup is a fixed 26-3024, SuperSpriteFM+ in slot 1, Sound/Speech
Cart om slot 2, Philharmonic-12 in slot 3, and a CoCoSDC in slot 4.

The programs I haven't tested on real hardware are: SCALECCP.BIN,
TESTCCP.BIN, SCALEGMC.BIN, and TESTGMC.BIN. The CCP stuff is for the
CoCoPSG and the GMC for the Game Master Cart neither of which I have and
have only tested in emulators.

I get the confusion. The programs started as a part of a sound demo for a
CoCo with 6 Yamaha YM-3-89XX or clone sound chips allowing for 18 voice
sound. They are PSG sound programs for the CoCo, not necessarily programs
for the CoCoPSG.

On Wed, Feb 19, 2025 at 3:43 PM coco--- via Coco <coco at maltedmedia.com>
wrote:

> I have downloaded the correct disk now and tested it on two systems.
> 1. A 2M 6309 coco3 with a mini-MPI
> And
> 2. A 512K 6309 coco3 with a mini-MPI
>
> Neither worked my results were as follows
>
> DEMO.BAS
>   writes LOADING SPEECH to the screen and nothing else happens ( I waited
> 5 full minutes for some result. )
> SCALESSF.BAS
>    Crashes the coco with onscreen fireworks no sound.
> SCALESSC.BAS  and SCALES12.BAS
>    Screen goes Blank, no music, some low volume high pitched popping
> noises.
>
> Have not tried it in emulator but I have Vcc somewhere so I will check
> that out.
>
> If you have ideas about where these programs are crashing let me know
> what line number I could put a BREAK point at to confirm or debunk
> proper operation up to that point.
>
> Hope I can be of help with testing.
>
> Charlie
>
>
> On 2025-02-17 10:51, coco--- via Coco wrote:
> > On 2025-02-14 18:17, Alex Evans via Coco wrote:
> >> PS The correct DSK file has been published as a release.
> >>
> >> On Fri, Feb 14, 2025 at 6:02 PM Alex Evans <varmfskii at gmail.com>
> >> wrote:
> >>
> >>>
> >>>
> >>> On Fri, Feb 14, 2025 at 5:06 PM coco--- via Coco
> >>> <coco at maltedmedia.com>
> >>> wrote:
> >>>
> >>>> Attention: Theodore (Alex) Evans
> >>>>
> >>>> To be clear I have seen a disk file called psg.dsk on your github at
> >>>> https://github.com/varmfskii/coco_psg/blob/main/psg.dsk
> >>>> but when I download it and put it on my coco's SD card explorer says
> >>>> it
> >>>> is an invalid file.
> >>>> I then looked at it in Linux and saw that it was 223K larger then
> >>>> the
> >>>> 160K a RS-DOS disk would
> >>>> be so is it OS-9 or is it just broken ?
> >>>>
> >>>
> >>> That file shouldn't really be there. That said, it is a valid dsk
> >>> file
> >>> that after downloading is 161,280 bytes long. It probably was
> >>> expanded by
> >>> EOL expansion. In any case it doesn't have the CoCoPSG files, but
> >>> they are
> >>> in the attachment in my last message (unless the listserver stripped
> >>> it
> >>> out).
> >>>
> > Thanks just downloaded it. Will try it out today or tomorrow.
> > Charlie
>
>
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