so i think i know my plan of attack.

[devlin@topspicy.social]

@eniko huh, TIL. I just knew that 23880 is "about 486 dx2/66" speed

[eniko@mastodon.gamedev.place]

@devlin i dunno, i found this https://www.dosbox.com/wiki/Performance which says 26800

and the dosbox staging conf file suggests 25000

[eniko@mastodon.gamedev.place]

@tonyg hmm yeah that's a possibility. but none of the qbasic drawing functions would work on that last 4 lines, so that's kind of a problem

i suppose i could cut those lines and go with 160x96 instead of 160x100?

[eniko@mastodon.gamedev.place]

@Craigp its a lot of fun working around the limitations :D especially since i'm not using the faster compiled one and i refuse to use assembly tricks

[nazokiyoubinbou@urusai.social]

@eniko It's very approximate, but 6000 would be apx a 386 at almost 33MHz. So yeah, it's a 386, but a pretty fast one.

Well, most basic was originally meant to run on crazy low stuff like an 8088, so if you're emulating a decent system it's going to go pretty well I guess.

[eniko@mastodon.gamedev.place]

notched it up to 486 33mhz and added a vblank wait and now its rocking a steady 70fps 💪

[tonyg@pubsub.leastfixedpoint.com]

@eniko Oh, I see. Yeah, on the second page. That's a shame!

[eniko@mastodon.gamedev.place]

@tonyg its fine to be honest. making my own variable width font means i'll be able to cram way more text onto the screen anyway, even if its a bit of a pain

[craigp@mastodon.social]

@eniko When I was using it, I didn't even know what a compiler was. And if I left the machine on for more than an hour, it would overheat and begin randomly flipping bits.

Enforced breaks, probably should be part of modern machines too.

[eniko@mastodon.gamedev.place]

@Craigp i tried to make games that ran well but i never got anywhere with it. coming back to it now is like sweet revenge :'D

[nazokiyoubinbou@urusai.social]

@eniko For a bit of scale, 6000 cycles may be potentially achievable on a 3DS (albeit with shortcuts and less than stellar accuracy in emulation.) I think a Raspberry Pi 3 can possibly handle the 12000ish you're talking about there. Maybe a RPi 2, not sure. (But probably not a 1 or a zero.)

[eniko@mastodon.gamedev.place]

since the pixels are double wide, i wonder if i can do "alpha blending" between colors in the palette by just having one on the left half and another on the right half and alternating every frame

[joe@f.duriansoftware.com]

@eniko nostalgia aside, one of the great things about qbasic is that it has an actually-working debugger and interpreter, and you can stop your program anywhere, make edits, evaluate immediate code to adjust state, and resume on the fly. doing all the coding offline would lose all that