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Re: KEGS 1.32 - More compatibility fixes

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Kent,

Thanks for taking care of the visual anomaly with the mouse cursor. It's 
working well now.

I've had one strange thing crop up in KEGS 1.32 under Windows 10 that I 
cannot duplicate in 1.31 and 1.30 --

To duplicate it:

1. Launch KEGS and boot into the GS/OS Finder;
2. Hit the 'F4' key to enter the configuration menu;
3. Hit 'escape' key to exit the configuration menu;
4. Press 'return'.

When you go back to the emulated GS' Finder window, KEGS throws up a 
Code RED.

I first noticed this when I was testing various high speed serial port 
drivers for compatibility and performance now that KEGS recognizes 
sourcing the emulated SCC clock from RTxC.

At first I thought I had introduced something strange with the serial 
drivers, but that turned out not to be the case.

FWIW, I plan to put up on my site this week the following GS/OS port 
drivers (with source code) in the hope that someone in addition to me 
could test them:

1. Port1Dvr57600
2. Port1Dvr115200
3. Port1Dvr230400

4. Port2Dvr57600
5. Port2Dvr115200
6. Port2Dvr230400

I'm able to test the 115,200 baud driver on both the emulated IIgs and 
also on a real IIgs with a serially-connected LaserJet, but the LaserJet 
maxes out at a 115,200 baud rate so I can't test the highest speed in a 
'real' setting. Plus, I don't think you've added 230,400 baud support to 
KEGS.

These drivers are all based on Burger Becky Heineman's original Freeware 
'Printer57.6' port driver from 1991. I corrected a couple of issues in 
the original 57,600 baud one, and then added some code in the others to 
increase the baud rates.

I tested a 52,000 line, 922,000 character, 177 printable page PostScript 
file this evening with the 115200 driver and got around 20,000 CPS. 
That's amazing speed. No, I didn't print it to an actual printer, but 
instead had set up an ncat server that received the input from KEGS and 
then saved it to a file.

Finally, I offer a hat tip to Ewen Wannop. His BrkDown disassembler did 
a great job disassembling Heineman's original port driver and 
reconstructing usable source code.

Kent, assuming these drivers don't have major flaws, I'll include them 
with the materials you asked.




Hugh Hood



On 11/25/2023 10:58 AM, Kent Dickey wrote:
> I've released a new version of KEGS v1.32, an Apple IIgs emulator for Mac,
> Windows, and Linux at:   http://kegs.sourceforge.net/
> 
> Changes in KEGS v1.32 since v1.31 (11/22/23)
> - Fix (dloc,x) in emulation mode to wrap as described at
>         https://github.com/gilyon/snes-tests/tree/main/cputest
> - Improve virtual hard drive in slot 7 to use a small driver at $C700 which
>         uses WDM $C7,$00 to call back to KEGS for handling commands.
> - Improve SCC8530 emulation to add support for RTxC as clock for higher speeds.
> - Fix a GS/OS visual anomaly with the mouse cursor sometimes disappearing
>         when moving upwards, due to Scanline interrupts not being taken
>         properly.
> - Support qkumba's code to run from $C050 by having get_remaing_opcodes()
>         track time properly, and to have reads to $C050-$C057 call float_bus()
>         before doing the softswitch action.
> 
> Kent

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Thread

KEGS 1.32 - More compatibility fixes kegs@provalid.com (Kent Dickey) - 2023-11-25 16:58 +0000
  Re: KEGS 1.32 - More compatibility fixes Hugh Hood <hughhood@earthlink.net> - 2023-11-26 21:52 -0600
    Re: KEGS 1.32 - More compatibility fixes Hugh Hood <hughhood@earthlink.net> - 2023-11-27 10:59 -0600
      Re: KEGS 1.32 - More compatibility fixes Jerry Penner <jerry+a2@jpen.ca> - 2023-11-27 17:22 -0700
        Re: KEGS 1.32 - More compatibility fixes kegs@provalid.com (Kent Dickey) - 2023-12-11 03:35 +0000

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