Topic: New driver I'm working on for FBA :)

[iq_132]

Cheers to whoever can guess what system it is.

btw, HQ4x filter on the last image

[Barry Harris]

Cool - CHIP-8.

[iq_132]

Yup And Super Chip as well.

[iq_132]

I've got it passing most of the tests

[iq_132]

More...

The only one that doesn't work is 'scroll test'

[iq_132]

Implemented some preset colors

[iq_132]

I was comparing some games against Fish'n'chips and Vision 8, some pretty good chip-8 emulators and
spotted this. 


#1 FnC is glitched
#2 Vision 8 is glitched
#3 FBA is perfect

[iq_132]

Here's the romset I'm using, afaik all of these are public domain (if not, someone please contact me)

[iq_132]

Here's the driver. Enjoy.

[CaptainCPS]

Gonna check this interesting stuff asap , I still remember when you told me that you was going to work with this on MSN ^^

Congrats IQ, it seems that FBA is the best on this stuff right now with your driver ^^

Take Care! SeeYaa!
 

[James33]

I am going to honest and say, I have never heard of this system . Can anyone point me to where I might get more info?

[iq_132]

http://en.wikipedia.org/wiki/Chip-8

[James33]

Thanks IQ

[hap]

I was comparing some games against Fish'n'chips and Vision 8, some pretty good chip-8 emulators and
spotted this. 


#1 FnC is glitched
#2 Vision 8 is glitched
#3 FBA is perfect

Animal Race (and some other native CHIP-8 games that were designed for the COSMAC VIP in the 70s) relies on the I register increasing after a memory load/store instruction. This "feature" is not part of Erik Bryntse's SCHIP specification, hence it doesn't work on FNC in SCHIP mode. Use FNC's VIP CHIP-8 emulated mode for this. Note that some newer SCHIP games do rely on the I register not increasing.

[iq_132]

First and foremost, welcome.

Animal Race (and some other native CHIP-8 games that were designed for the COSMAC VIP in the 70s) relies on the I register increasing after a memory load/store instruction. This "feature" is not part of Erik Bryntse's SCHIP specification, hence it doesn't work on FNC in SCHIP mode. Use FNC's VIP CHIP-8 emulated mode for this. Note that some newer SCHIP games do rely on the I register not increasing.

Very interesting ^^  I hadn't bothered to track that down.   And yeah, I do have it set up so that 'I' only increases in CHIP-8.


BTW, just out of my own curiosity, how did you find this thread?