Search found 74 matches
- 12 Dec 2014 18:44
- Forum: GENERAL DISCUSSIONS
- Topic: When and How did you rediscover Memotech ?
- Replies: 7
- Views: 9309
Re: When and How did you rediscover Memotech ?
I was a school kid living in Witney when they started building their Factory in Station Lane. I went there with my Quasar game for ZX Spectrum hoping to write games for their new computer. Got a short job working in the (very dusty) portacabins using an SM1 to code games for the MTX, before the MTX ...
- 19 Oct 2014 21:46
- Forum: SOFTWARE
- Topic: Status update on my old development disks
- Replies: 2
- Views: 9417
Re: Status update on my old development disks
MEMU isn't good at sound programs that very rapidly reprogram the sound chip, like the Speech capture and playback program that I think Tony Brewer worked on, the Toado fly noise, and the Lemmings "Lets go" sample. Yes, I'd say a word progressor App like this is a worthy addion to the libr...
- 19 Oct 2014 21:42
- Forum: CP/M
- Topic: Scans of CPM disks
- Replies: 5
- Views: 11005
Re: Scans of CPM disks
I my Disk Images download includes type 03 and 07 images of bootable CP/M disks, both 54K and 59K systems, which should work if written to 5.25" or 3.5" media.
None of these are the official CP/M disks distributed with FDX or SDX systems, but they should be good enough for most purposes.
None of these are the official CP/M disks distributed with FDX or SDX systems, but they should be good enough for most purposes.
- 17 May 2014 00:53
- Forum: HARDWARE
- Topic: Another repair case, plase help if you can
- Replies: 34
- Views: 31621
Re: Another repair case, plase help if you can
More likely duff DRAM than duff Z80. Changing and/or socketing the chips probably didn't help, and may have made it worse. I know of 3 attempts to change DRAM that didn't work afterwards, even though visual and electrical inspection showed nothing wrong. I'd try removing them and using external RAM ...
- 28 Apr 2014 23:30
- Forum: GENERAL DISCUSSIONS
- Topic: FREE Electronic Components - Again !!
- Replies: 5
- Views: 6628
Re: FREE Electronic Components - Again !!
Er, what Martin A and 1024mak said, too. Lez certainly help me stock my electronics box with tools and components. And keeping in this spirit, this helped me offer the earliest REMEMOrizers slightly cheaper, and I've also passed on some things to other retro enthusiasts. I've also got some things to...
- 11 Apr 2014 00:31
- Forum: CP/M
- Topic: "new" games as COM files.
- Replies: 6
- Views: 12319
Re: "new" games as COM files.
I think the SDX User Manual probably has an example USER command to save a block of memory. Probably showing an example of how to make a .RUN file. I have a script somewhere that prepends a BASIC loader in front of a .COM file to produce a .mtx file you can LOAD "". If you look at Z.mtx, y...
- 08 Apr 2014 23:36
- Forum: TRADING AND COLLECTING
- Topic: MTX512 for sale - Ebay
- Replies: 3
- Views: 9438
Re: MTX512 for sale - Ebay
I wonder if anyone we know got it.
Or perhaps more interestingly, a new enthusiast?
Or perhaps more interestingly, a new enthusiast?
- 07 Apr 2014 23:56
- Forum: HARDWARE
- Topic: MTX Paged Roms
- Replies: 8
- Views: 9233
Re: MTX Paged Roms
Alas INOUT (=0AAEH) reprograms the CTC so as to interrupt whenever an edge occurs on the cassette interface.
I suspect the ISR simply sets the carry flag.
Cool idea though.
I suspect the ISR simply sets the carry flag.
Cool idea though.
- 06 Apr 2014 12:38
- Forum: HARDWARE
- Topic: MTX Paged Roms
- Replies: 8
- Views: 9233
Re: MTX Paged Roms
I think that fitting it all in was a bigger concern than minimizing paging. The 127 page switches per sec when idling is consistent with one of the interrupt service routines being called 64 times a second, which switches to ROM page 1, runs a small piece of code (which often does very little), then...
- 16 Mar 2014 23:29
- Forum: GENERAL DISCUSSIONS
- Topic: Has any one come across any malicious code for MTX systems?
- Replies: 6
- Views: 7915
Re: Has any one come across any malicious code for MTX syste
Thats right, it sends back details on your driving style to the NSA.