Buffee... It's alive!!

[eXeler0]

Originally Posted by Tigerskunk

I remember having this discussion a good time back in the Buffee discord, but would it be possible to have a fatter AGNUS for the A1000?

Hush not now that I got a €350 Rejuvenator remake board for my A1000

[Gorf]

Originally Posted by hammer

Graffiti was able to display 256 colors from OCS/ECS 16-bit Chip Ram bandwidth, hence it's possible to extend Super Denise ECS to 256 colors via 8-bit planes.

It does not do that by using 8 bitplanes, but a pseudo-chunky mode.
A 4 bitplane HiRes mode (640 pixels per line - usuall 16 colours), will give you a special LowRes mode (320 pixels per line and 265 colours).
The Graffiti has ist own RAM and CLUT with 265 entries...

The pixels in ChipRam must be arranged like:

1st pixel is byte 0 in bitplane 0
2nd pixel is byte 0 in bitplane 1
3rd pixel is byte 0 in bitplane 2
4th pixel is byte 0 in bitplane 3
5th pixel is byte 1 in bitplane 0
6th pixel is byte 1 in bitplane 1
7th pixel is byte 1 in bitplane 2
8th pixel is byte 1 in bitplane 3
9th pixel is byte 2 in bitplane 0
....

[grelbfarlk]

Originally Posted by Tigerskunk

I remember having this discussion a good time back in the Buffee discord, but would it be possible to have a fatter AGNUS for the A1000?

https://eab.abime.net/showthread.php?t=111805

[Tigerskunk]

Originally Posted by grelbfarlk

https://eab.abime.net/showthread.php?t=111805

Amazing...

[Leon Besson]

Originally Posted by grelbfarlk

I'm going to say Buffee will at least be more than capable of running the XAGA chipset successfully. With at least AAAa quality. And far better than Hombre specs, at least Bromigo level.

Nice one Greg Mang! Looks like something I will look into if it’s at Bromigo level. Bromigo!

[nonarkitten]

Originally Posted by Tigerskunk

I remember having this discussion a good time back in the Buffee discord, but would it be possible to have a fatter AGNUS for the A1000?

Not really maybe yesish no?

Agnus on the Amiga 1000 does not have the address decoder, only the RGA bus, and only has enough address pins coming from it to address 512KB of RAM. It's not possible to have Skinny Agnus grant more than 512KB to the CPU, not without major surgery.

Now, could the extended chip RAM up to 16MB still work? Yes, that would still work. You would have a 512KB "window" into 16MB of chip RAM and the blitter could move things into higher chip RAM space. Since Denise and Paula do not have anything more than the RGA bus as well, there's really no hard limit to the amount of chip RAM they can "see" since to them, it's more like just a stream of data (DMA).

Will 2x and 4x DMA work on the Amiga 1000 motherboard? I don't know, I haven't tried. The only PCB I tried pushing to 14MHz was my 500+ so I guess I need to add that to my things to do.

Of course, the better option is to just get a Rejuvenator.

[8 Bit Dreams]

Any news about reAGNUS?

[utri007]

Originally Posted by 8 Bit Dreams

Any news about reAGNUS?

ReAgnus is most interested part, as it would allow 2mb chip ram. 8375 Agnuses stars to be expensive.

[klx300r]

@ kipper2k


any news on the Amiga 1200 Buffy (vampire slayer) accelerator

[ItsTheSmell]

Whats happening with the A500 Buffee? Any updates? Its nearly a year behind schedule.

[Dale423]

I think it died. I have a pretty useless beta board here.

[Promilus]

I'm not so sure about that. But Renee does seem to pile up projects (e.g. chipset replacement) trying really hard to make those cheap and interfaced easily to Amiga. But since 5V tolerant FPGAs are basically non-existent now, AM335x (sorry, OSD335x - with on-module RAM and ROM) is hard to get as well. So much of that effort just went down the drain which has to be frustrating and overcoming those obstacles (so NONE of those big projects ends up actually dead) will likely lead to rather slow progress for quite a while. Remember - it's not her day job! She does have other things to do as well. The sources for PJIT etc. are there. Anyone interested in the project CAN HELP!

On the other hand... while fairly cheap - by the time it was conceived, and fairly elegant in the way it handles 68k bus through SoCs hardware itself (without adding FPGA to emulate missing signals and multiplex others due to gpio shortage) Buffee nowadays does seem kind of redundant. While I'm curious how PJIT actually stacks up against either musashi (I guess PJIT is faster) and emu68 (this one is tough cookie)... but PiStorm is based on Cortex A53 (RPi3, PiZero2) and Cortex A72 (RPi4, CM4) while Buffee is based on Cortex-A8 iirc sub 1GHz class. It does make a big difference. I'm fan of both projects but being honest here - there's big community push on PiStorm and Nonarkitten is working almost entirely solo there. The gap is already too big and it's unlikely to close.

[PurpleMelbourne]

Texas Instruments ran short of the relevant chips.
I don't think they've gotten through their backlog yet and have more chips available.

[Dale423]

Originally Posted by Promilus

I'm not so sure about that. But Renee does seem to pile up projects (e.g. chipset replacement) trying really hard to make those cheap and interfaced easily to Amiga. But since 5V tolerant FPGAs are basically non-existent now, AM335x (sorry, OSD335x - with on-module RAM and ROM) is hard to get as well. So much of that effort just went down the drain which has to be frustrating and overcoming those obstacles (so NONE of those big projects ends up actually dead) will likely lead to rather slow progress for quite a while. Remember - it's not her day job! She does have other things to do as well. The sources for PJIT etc. are there. Anyone interested in the project CAN HELP!

On the other hand... while fairly cheap - by the time it was conceived, and fairly elegant in the way it handles 68k bus through SoCs hardware itself (without adding FPGA to emulate missing signals and multiplex others due to gpio shortage) Buffee nowadays does seem kind of redundant. While I'm curious how PJIT actually stacks up against either musashi (I guess PJIT is faster) and emu68 (this one is tough cookie)... but PiStorm is based on Cortex A53 (RPi3, PiZero2) and Cortex A72 (RPi4, CM4) while Buffee is based on Cortex-A8 iirc sub 1GHz class. It does make a big difference. I'm fan of both projects but being honest here - there's big community push on PiStorm and Nonarkitten is working almost entirely solo there. The gap is already too big and it's unlikely to close.

Understand that, but the beta boards have been out in people's hands for almost 3 years now and there isn't a single working board anywhere that I am aware of.

[Pyromania]

[ Show youtube player ]

[utri007]

There were at least two similar project than this, which got cancelled when this project appeared.

Similar meaning size factor of 68000 CPU and drop in replacement.

[ItsTheSmell]

Did anyone get their money back? I paid £120 for one over 12 months ago, the retailer should have informed me and gave me a refund.

[trixster]

Same. Paid in may or jun 2021 i think, have received nothing. Had to chase for some updates, have heard nothing in the last 4 months. Vapourware.

[ItsTheSmell]

Originally Posted by trixster

Same. Paid in may or jun 2021 i think, have received nothing. Had to chase for some updates, have heard nothing in the last 4 months. Vapourware.

Ive sent retro ez and pureamiga an email about it, they said the money is in a separate account incase it goes belly up but they havent responded to the email. So far

[trixster]

Originally Posted by ItsTheSmell

Ive sent retro ez and pureamiga an email about it, they said the money is in a separate account incase it goes belly up but they havent responded to the email. So far

Ah, I’m talking about buffee. I paid for a beta board, have so far received nothing