*** M E M O R U M ***

I don;t know whether it is relevant to MAME, but for MEMU, in order for the tape reading to work, I had to do some work on the Z80 emulation to make the CTC interrupt to the Z80 nearly cycle accurate. As a consequence this version of MEMU is probably a bit slower than Andy's version. However, it did...

Dave, Thanks for hosting this for me. My code is currently based upon Andy Key's from a couple of years back. It does not contain Andy's latest enhancements (it will not run hextrain). It is also rather more Linux / Raspberry Pi specific. However it does contain the following features: MTX serial I/...

Thanks to Martin & family for hospitality, a very substantial buffet and another very impressive cake.

I only wish I had been able to spend longer with all the assembled Memotechies.

Bill.

My entry came in at 41 bytes and 181 cycles.

It was tested in MEMU running CPM.

Are the "undocumented" Z80 instructions allowed?

Things like: LD IXh, A (0xDD, 0x67)

Or "Official" Z80 instructions only?

Try

CPMCP -f memotech-type18 partition0.dat c:\cpmtools\partition0\file.mtx 0:

Bill.

Dave, If you are running small C in MEMU, why not edit your programs using your preferred Windows editor, and then use MEMU and Small C to compile the code, in a similar way to Andy's site shows for Z80 assembler, i.e.: memu -mon-console -fast cc.com ... That should give you CP/M executables. Compil...

Claus, Thanks for bug report. Fixed in the attached version. The previous version would have worked if you had specified an output sample rate. The difficulty with converting between .mtx and .wav files is knowing how long each block of data is. When converting to .wav you need to know where to inse...

Windows executable versions, compiled using MinGW,

Bill.

This one is my level 2 tape audio file cleaning program. As well as squaring the input signal it normalises the pulse lengths. In order to do so, it needs to know the Baud rate of the recording. 2400 is assumed if nothing else is specified. The program can produce an output file with a different Bau...