EclaireXL

07/22/2017

FO 09:06 PM Bug #56: Galaxian Cartridge crash

This works on the latest core I'm using (lets call it v15 - address decoder rework!) foft

FO 09:04 PM Address decoding rewrite - tricky, tricky!

So I decided to rewrite the address decoding and priority access to fix the timing issues. Currently the 'address decoder' has a load of random stuff in it. Multiple bus masters come in (6502, dma and antic) and it chooses who has priori... foft

07/20/2017

ND 10:06 PM Bug #56 (Closed): Galaxian Cartridge crash

i tried the physical 8k Galaxian cart on the Eclaire with Core v13 and the game crash 2sec into the demo screen
the same game in CAR format loaded form the eclaire menu works fine
its the physical cart that crash ndary

07/19/2017

FO 08:14 PM Feature #55 (New): Replace main CPU

I really find the stack based zpu annoying to debug. Also as its setup the rom is full.
Consider replacing with something newer, also with gcc support, such as https://github.com/SpinalHDL/VexRiscv. foft

07/17/2017

FO 08:11 PM 917k's setup!

I'm sure you've already seen Steve's great setup, but if not go and see here. Very nice work:-)
http://atariage.com/forums/topic/267845-my-eclairexl-a-salute-to-the-atari-400-my-first-atari-computer/
I'm still working away on the cor... foft

07/15/2017

FO 09:47 PM Bug #25: F10 Hard Reset Ignore inserted cartridge (Core v7)

This is the last thing remaining for V15. In order to do it (simply) I decided to allow off PBI access from turbo mode and zpu. That seems to work now, except its failing timing. I think I need to plumb the internal freezer in differentl... foft

FO 09:44 PM Bug #25 (In Progress): F10 Hard Reset Ignore inserted cartridge (Core v7)

foft

07/09/2017

FO 01:25 PM Feature #24: A board with Atari SOUL!!!! (ROM in block ram support)

I'm using block ram in the FPGA for the OS ROM and BASIC. It can be read in 2 cycles and written to in 1 cycle. SDRAM takes about 5-6 iirc. So in turbo mode, with no cpu cache, this makes a huge difference in speed. foft