Search found 453 matches

by Martin A
26 Jan 2020 18:28
Forum: OFF TOPIC
Topic: Another Home-Brew - Z180
Replies: 53
Views: 8114

Re: Another Home-Brew - Z180

Looking good!

Have you though about just using a piece of stripped back single core wire instead of pins for the through board connections ?
by Martin A
25 Jan 2020 22:26
Forum: GENERAL DISCUSSIONS
Topic: Using more than 64k on the MTX
Replies: 7
Views: 1098

Re: Using more than 64k on the MTX

In CPM, the RAM drive would be drive F:. The physical dives are B: to E: so they're not going to get in the way. A silicon drive could also be present as an F: drive, but they all have type codes #4x where Andy has used #5x for the ram drives. There's probably a "proper" way to determine the configu...
by Martin A
25 Jan 2020 09:38
Forum: GENERAL DISCUSSIONS
Topic: Using more than 64k on the MTX
Replies: 7
Views: 1098

Re: Using more than 64k on the MTX

What I would be interested in is how a program could tell whether the high RAM is being used by a RAM disk. From what I could tell when setting up the source code for the MTXplus builds, the system ROMs use LSTPG (64122) to work out where memory "ends". I've a feeling that they also assume the last...
by Martin A
23 Jan 2020 12:13
Forum: GENERAL DISCUSSIONS
Topic: Using more than 64k on the MTX
Replies: 7
Views: 1098

Using more than 64k on the MTX

A question was posted on Facebook about using the extra sockets on a Memotech RAM expansion board. So, that leads to the question: What software is there that CAN use more than 64k on the MTX? I've come up with very little Early Software: MTX BASIC Andy's RAM Drive Modern Software: Bill's Z machine ...
by Martin A
16 Jan 2020 12:41
Forum: SOFTWARE
Topic: Possibly hundreds (?) of new games for the MTX
Replies: 27
Views: 2796

Re: Possibly hundreds (?) of new games for the MTX

Just to confirm, not only did the download work, the fixes do too. While testing, I ran the MTXplus at various speeds, obviously faster is better, but subjectively, at 4mhz, M576ZVM seems a lot faster than CPMZVM, far more so that the 30% less cycles figure would suggest. It probably makes the diffe...
by Martin A
13 Jan 2020 21:03
Forum: SOFTWARE
Topic: Possibly hundreds (?) of new games for the MTX
Replies: 27
Views: 2796

Re: Possibly hundreds (?) of new games for the MTX

The new one worked a treat. (6 partial downloads of the other version deleted!)
by Martin A
12 Jan 2020 22:38
Forum: SOFTWARE
Topic: Possibly hundreds (?) of new games for the MTX
Replies: 27
Views: 2796

Re: Possibly hundreds (?) of new games for the MTX

I can't get the Zip to download, it starts, but immediately stops with 0 bytes downloaded, and the message "this file could not be downloaded"
by Martin A
12 Jan 2020 12:33
Forum: SOFTWARE
Topic: Possibly hundreds (?) of new games for the MTX
Replies: 27
Views: 2796

Re: Possibly hundreds (?) of new games for the MTX

The comma issue with AMFV and M576ZVM is fixed. Good work :D amfv with commas.jpg But I've found another "issue" with loading and saving if I enter "save", the game produces a "Filename" prompt, and waits for the name to be input. When inputting "restore" to reload, the prompt is input in the wrong ...
by Martin A
09 Jan 2020 20:17
Forum: HARDWARE
Topic: Memotech MTX ROM & EPROM pin-outs
Replies: 7
Views: 2927

Re: Memotech MTX ROM & EPROM pin-outs

The diagnostic board / rom has a thread in new hardware at:
http://www.mtxworld.dk/memorum/viewtopic.php?f=17&t=420
The final build of the rom (build 245) is near the end of the 3rd page
by Martin A
06 Jan 2020 21:03
Forum: SOFTWARE
Topic: Possibly hundreds (?) of new games for the MTX
Replies: 27
Views: 2796

Re: Possibly hundreds (?) of new games for the MTX

OK for clarity CPMZVM.COM gives the "correct" output
M576ZVM.COM is the version that prints 8e instead of a comma.