[Simh] Problem with QVSS graphics display

[Peter Allan]

I have tried the QDSS graphics with the MicroVAX II simulator and it does
indeed work fine, as does the QVSS graphics. These are still with SDL1.2.

My problem was that although I had read the instructions, I forgot them
when I came to try things out. Must be old age creeping on!

I will go and make sure that I can build the simulators with SDL2, given
that they are under /usr/local.

Cheers

Peter Allan


On Mon, 20 May 2019 at 16:04, Peter Allan <petermallan at gmail.com> wrote:

> Thanks Mark. I will try what you have suggested. I was a bit surprised
> that SDL 1.2 worked at all, but since it is a recognised part of CentOS 6
> and SDL2 is not, it seemed worth trying it.
>
> Cheers
>
> Peter Allan
>
> On Mon, 20 May 2019 at 14:37, Mark Pizzolato <Mark at infocomm.com> wrote:
>
>> On Monday, May 20, 2019 at 3:24 AM, Peter Allan wrote:
>> > Encouraged by the recent release of simulated vaxen with QVSS graphics,
>> > I have tried out a couple of these with very different results.
>>
>> Actually, the recent release was for QDSS graphics.  The QVSS has been
>> available for almost 6 years!
>>
>> >
>> > Firsly I tried a microVAX II and put the line
>> >
>> >   SET CPU MODEL=VAXstation in the .ini file.
>> >
>>
>> QDSS Graphics is selected with SET CPU MODEL=VAXstationGPX.
>> QVSS Graphics is selected with SET CPU MODEL=VAXstation
>>
>> [...]
>>
>> > My computer is a standard PC running CentOS 6.10. The version
>> > of SDL I am using is 1.2, so I suspect that, yet it works fine on the
>> > microVAX II.
>>
>> First, you are using SDL 1.2.  Later today, I'll explicitly be removing
>> any support for building with any SDL version earlier than 2.0.
>> Dual libSDL support was needed 6 years ago when the QVSS
>> graphics were first added since at that time, SDL 2.0 was just
>> being released and it wasn't generally available on several common
>> platforms.  There are substantial differences between the API's
>> provided in SDL 1.2 and SDL 2.0, so some messy code will be
>> eliminated and we really can't maintain or provide equivalent
>> functionality with both.
>>
>> > I built the simulators from the code on github. The git commit
>> > id is 05f84879 for both of them.
>>
>> Please pick up the latest code from GitHub and try again.  Besides
>> potential libSDL issues, there have been changes which would
>> certainly affect QVSS functionality.
>>
>> >
>> > My vax.ini file is:
>> >
>> > SET CPU NOIDLE
>> > SET CPU IDLE=VMS
>> > SET CPU MODEL=VAXstation
>> >
>> > ATTACH NVR nvram.bin
>> >;
>> >; Set up the disks
>> > SET    RQ0 RA81
>> > SET    RQ1 DISABLE
>> > SET    RQ2 DISABLE
>> > SET    RQ3 CDROM
>> > ATTACH RQ0 system
>> > ATTACH -r RQ3 cd
>> >;
>> >; Line printer
>> >;
>> >;;ATTACH LPT printer
>> >;
>> >; Card Reader
>> >;
>> > SET CR DISABLE
>> >;
>> >; Disable RL cartridge disks
>> > SET RL DISABLE
>> >;
>> >; Disable unused tape drives
>> > SET TQ TK70
>> > ATTACH TQ0 tape1
>> > SET TQ1 DISABLE
>> > SET TQ2 DISABLE
>> > SET TQ3 DISABLE
>> >;
>> >; Disable TSV11 magnetic tape drives
>> > SET TS DISABLE
>> >;
>> >; Set up the ethernet interface
>> > SET XQ MAC=08-00-2B-AA-BB-CC
>> > ATTACH XQ eth0
>> >;
>> >; Allow telent connections to the DZV11 serial interface
>> > SET DZ LINES=4
>> > ATTACH DZ 10003
>> >;
>> >; Start the CPU
>> > SET CPU CONHALT
>> > DEP BDR 0
>> > BOOT CPU
>> >;
>> > EXIT
>> >
>> > I am hoping that I have done something wrong, but I can't see what.
>>
>> For now, with libSDL2 and the latest codebase you'll probably need:
>>       sim> SET QVSS CAPTURE
>> before the SET CPU MODEL=VAXSTATION{GPX}
>>
>> Captured Keyboard & Mouse mode is currently needed for reliable
>> behavior.  It will be an option in the future.
>>
>> At this time support for QDSS graphics on the VAX simulator is not
>> yet working, but it works fine on the MicroVAX II and the other
>> recently released simulators.
>>
>> - Mark
>>
>
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