Search found 689 matches

by Martin A
30 Sep 2014 20:16
Forum: NEW HARDWARE
Topic: V9958 on an MTX
Replies: 23
Views: 27456

Re: V9958 on an MTX

Nothing new from the weekend, I got side-tracked putting together some 6309 based hardware.

I WILL get the 80 column text mode tested, I promise!
by Martin A
26 Sep 2014 15:51
Forum: NEW HARDWARE
Topic: V9958 on an MTX
Replies: 23
Views: 27456

Re: V9958 on an MTX

Graphics mode 7
Graphics mode 7
G7 Test-sm.jpg (88.24 KiB) Viewed 10895 times
Graphics mode 7 tested

It's a bitmapped 256 x 192 mode in 256 colours

I'm still running composite video output.

The very basic BASIC used to set up the display can be seen on the other screen.
by Martin A
22 Sep 2014 19:52
Forum: NEW HARDWARE
Topic: V9958 on an MTX
Replies: 23
Views: 27456

Re: V9958 on an MTX

Now does this mean we get a c o l o u r version of textinvaders? Mark Hm I guess that depends on the market, what's your estimate of the number MTX's there are out there running with a V9958 expansion? :D I was cheating a little to get the display set up, the 9958 was set to respond to ports 1 and ...
by Martin A
21 Sep 2014 23:05
Forum: NEW HARDWARE
Topic: V9958 on an MTX
Replies: 23
Views: 27456

V9958 on an MTX

after tweaking.jpg Testing on the EB512.jpg Minor success today, first output from the V9958 supplied by Lez, being driven by the much abused MTX500 I upgraded to 64k. That's half the amount that's on the video board, and there are 2 sockets obscured by the daughterboard that could bump the video r...
by Martin A
16 Sep 2014 21:45
Forum: HARDWARE
Topic: FDX 80 Column Fault - Video Question . . .
Replies: 13
Views: 14457

Re: FDX 80 Column Fault - Video Question . . .

You probably also need to run MTX.COM and run the test code from the VDP side, otherwise the OS is likely to mess with the results when you start PRINTing.
by Martin A
15 Sep 2014 20:05
Forum: HARDWARE
Topic: FDX 80 Column Fault - Video Question . . .
Replies: 13
Views: 14457

Re: FDX 80 Column Fault - Video Question . . .

That IS interesting, as the read back on my re-memorizor based setup is the 63 that's put into the attribute port on line 10.

Which suggests you might be wanting to look at the write to attribute ram side, rather than the video output ?
by Martin A
15 Sep 2014 10:05
Forum: HARDWARE
Topic: FDX 80 Column Fault - Video Question . . .
Replies: 13
Views: 14457

Re: FDX 80 Column Fault - Video Question . . .

Something like 10 OUT 51,63 20 OUT 50,65 30 OUT 49,224 40 FOR X=0 TO 255 50 OUT 48,X 60 NEXT 70 OUT 49,0 80 FOR X=0 TO 255 90 OUT (48),X 100 PRINT INP(51) 110 NEXT Tested on re-memorizor, as unlike some folk I don't have 157 FDX's :shock: The first 6 lines push 256 white on white A's on to the 80 co...
by Martin A
14 Sep 2014 23:29
Forum: HARDWARE
Topic: FDX 80 Column Fault - Video Question . . .
Replies: 13
Views: 14457

Re: FDX 80 Column Fault - Video Question . . .

Have you tried writing a byte to the video attribute memory and then reading it back, to confirm the right value gets into video memory I the first place ?
by Martin A
17 Aug 2014 10:03
Forum: GENERAL DISCUSSIONS
Topic: All good things come to an end,or do they? - Perhaps not!
Replies: 2
Views: 4247

Re: All good things come to an end,or do they? - Perhaps not

I've been reading up on these' maybe a good project for someone that wants to play with the "port 7" connector on the MTX motherboard?

Is way too far down the project priority list for me to volunteer to test the suitability though...
by Martin A
01 Aug 2014 10:00
Forum: GENERAL DISCUSSIONS
Topic: All good things come to an end . . . . or do they?
Replies: 9
Views: 8804

Re: All good things come to an end . . . . or do they?

I'm going to keep quiet his time.

Thanks to Lez's previous giveaways, I have enough "projects" to last for years.

I just need the time to finish them.

Hmm, it's a shame you cant get an "Early Retirement Chip" :D