Support DHGR Mono

[inexorabletash]

See AppleWin/AppleWin#523

Some non-Apple 80 column cards with DHR support allowed software control of DHGR monochrome vs. color. (My Laser 128EX has a hardware switch, some monitors had color killer buttons.)

Since A2D assumes monochrome, might as well try to support this for emulators/hardware that can be forced into monochrome mode while A2D is running. It seems like it's a combination of softswitches then remembering to set/clear the otherwise unused high bit.

This would likely require changes to the GUI library (which may leave the high bits in a random state; need to inspect all the code) and anything like the (new) Image Viewer DA that writes directly to the screen buffer.

[jvernet]

MOUSE DESK 2.0 French can use DHGR Mono mode of the Le Chat Mauve RGB Card. I remember that Apple II Desktop do not use this mode (see photo below, it's a IIgs color monitor, but connected to my Le Chat Mauve card)
So you may see if there is something interesting to use here.

MOUSEPAINT do not use this mode

[jvernet]

In fact, Mouse Desk 2.0 French I have is exactly the same as Apple II Desktop. Same dates, same authors. But Mouse Desk 2.0 French can use DHGR mono mode, Apple II Desktop seem to be unable.

[jvernet]

Sorry, it seems that I mistaken... JACE (wich emulate DGHR mono mode) show that every version of Apple Desktop I tried can handle mono mode....

[inexorabletash]

Do you have docs for the softswitches that control it?

The setup code pokes a few switches I haven't found docs on. They could be the ones controlling DHGR mono mode.

[jvernet]

You can find the card manual (in french) here:
https://mirrors.apple2.org.za/ftp.apple.asimov.net/documentation/hardware/video/lechatmauve_eve_manuel_ocr.pdf

Look at pages 117-118. The BW560 (560x192) mode is set with AN3 OFF, HR1 OFF, HR2 ON, HR3 ON
Where:

AN3 : on $C05F off $C05E
HR1: on $COB3 off $COB2
HR2: on $COB5 off $COB4
HR3: on $COB7 off $COB6

[inexorabletash]

Looks promising. There is a sequence which pokes C0B5 and C0B7 along with other switches. Thanks for the link!

…

On Jan 30, 2018, at 1:04 AM, JVernet ***@***.***> wrote: You can find the card manual (in french) here: https://mirrors.apple2.org.za/ftp.apple.asimov.net/documentation/hardware/video/lechatmauve_eve_manuel_ocr.pdf Look at pages 117-118. The BW560 (560x192) mode is set with AN3 OFF, HR1 OFF, HR2 ON, HR3 ON Where: AN3 : on $C05F off $C05E HR1: on $COB3 off $COB2 HR2: on $COB5 off $COB4 HR3: on $COB7 off $COB6 — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

[inexorabletash]

Done for Show Image File DA in 06c721b

Already supported by DeskTop, although there's still #43

[jvernet]

Applewin 1.28.1 support now this mode !

[inexorabletash]

I saw that! Need to try it out.

[jvernet]

Some version will use this mode, some will not. Need to make more test, on my real IIe and applewin. Envoyé de mon iPad Le 3 févr. 2019 à 00:43, Joshua Bell <notifications@github.com<mailto:notifications@github.com>> a écrit : I saw that! Need to try it out. — You are receiving this because you commented. Reply to this email directly, view it on GitHub<#41 (comment)>, or mute the thread<https://github.com/notifications/unsubscribe-auth/APjpKCILjt1txW9bwefWw25QckWmefWHks5vJiKigaJpZM4RLVXW>.