Search found 435 matches

by Petari
Tue Aug 21, 2018 10:55 am
Forum: STF REMAKE PROJECT
Topic: SUGGESTIONS
Replies: 27
Views: 1482

Re: SUGGESTIONS

I think that possibilities are endless. Doing some sprite support in Shifter would be C64-ST hybrid - I guess Tramiel would like it :D But need to be realistic and not going into some very complicated and HW demanding ideas. ST is enough fast to deal with sprites with CPU and shifter. Agree with Sim...
by Petari
Tue Aug 21, 2018 10:49 am
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: Scrolling tricks
Replies: 1
Views: 15

Re: Scrolling tricks

In case of horizontal scrolling on ST without blitter main problem is that required shift operation is slow with 68000 CPU. Shift means moving all bits in word (16 bits) for certain count of bits left or right - what is basically the horizontal scroll. Best way to avoid slow shift during game play i...
by Petari
Mon Aug 20, 2018 5:41 pm
Forum: GAME ZONE
Topic: Overlander
Replies: 1
Views: 41

Overlander

https://youtu.be/L32F68bGxms Fast paced drive with good framerate. There is some shooting too, for those who can not without it :D This was interesting for me, because first, 1988 release crashes right after play start with TOS 1.04, 1.06, 1.62 . It was corrected in Power Pack release next year, but...
by Petari
Mon Aug 20, 2018 4:26 pm
Forum: STF REMAKE PROJECT
Topic: SUGGESTIONS
Replies: 27
Views: 1482

Re: SUGGESTIONS

Chunky with palette makes best sense I think. I guess 2 bytes per pixel for 256 colour palette. so 16bit packet equates to 2 pixels like $1122.. 16bit "true colour" would need a lot of bandwidth power, or as said earlier, would need a frame buffer to allow "slow frames" to be drawn.. may only be us...
by Petari
Mon Aug 20, 2018 2:49 pm
Forum: STF REMAKE PROJECT
Topic: SUGGESTIONS
Replies: 27
Views: 1482

Re: SUGGESTIONS

8 bits/pixel of course palette based, as is in most cases. And indeed 12-bit palette, as by STE or TT . More wouldn't harm :D
Direct color has sense with 16 bits/pix or more .
by Petari
Sun Aug 19, 2018 7:01 pm
Forum: HARDWARE DISCUSSIONS
Topic: The "perfect" TT?
Replies: 8
Views: 119

Re: The "perfect" TT?

What makes me wondering: is there some modded, improved TT TOS made ever ? Depending on what you define as improved: yes. TOS 3.06 modded for PAK68, and another TOS 3.05 modded for some other accelerator card. What has been changed is unknown to me. Surely I did not mean as improved some TOS with a...
by Petari
Sun Aug 19, 2018 4:37 pm
Forum: STF REMAKE PROJECT
Topic: SUGGESTIONS
Replies: 27
Views: 1482

Re: SUGGESTIONS

Yes, I think that improved shifter together with faster RAM and MMU + other chips is much better solution than some added ISA or PCI card - which will need some logic too to put them on bus of ST . 8 bits/pix mode is what would be interesting, and is present in TT and Falcon too - that means 256 col...
by Petari
Sun Aug 19, 2018 12:46 pm
Forum: HARDWARE DISCUSSIONS
Topic: The "perfect" TT?
Replies: 8
Views: 119

Re: The "perfect" TT?

IDE on TT is faster than SCSI, and nothing can change that. The reason is simply that SCSI DMA (not same as ACSI DMA, which is even slower) has it max transfer rate. With 32 MHz CPU IDE can about 6 MB/sec. Surely SCSI with its DMA will not occupy CPU 100%, but you need special SW what can benefit fr...
by Petari
Fri Aug 17, 2018 3:14 pm
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: Atari ST Power Pack - a request
Replies: 5
Views: 121

Re: Atari ST Power Pack - a request

I converted STX of Overlander + Starglider + Super Huey to ST, because it seems not copy protected. atari.8bitchip.info/TestMe/PowerPackStargliderOverlanderSuperHuey.zip Will look others for protection ... Btw. Overlander STX image at Atarimania (separated game release) is buggy version - it crashes...
by Petari
Fri Aug 17, 2018 7:14 am
Forum: SOFTWARE PROGRAMMING & DISCUSSION
Topic: Atari ST Power Pack - a request
Replies: 5
Views: 121

Re: Atari ST Power Pack - a request

... Does anyone have .st format copies of the original disks? I played these games for months before getting any others and even though some of them aren't great, I'd still like to play them again for old times sake :) You can not make ST format copies of original copy protected disks. What you nee...