daver2's latest activity

MOV reg16,Immed16 encodes as: B8+reg followed by the immediate data. reg is AX,BX,CX,DX,SP,BP,SI, or DI (so most of the general...

Neat! Dave

It's alive!!!

I will ask the question. EDIT: Question asked... Dave

You mentioned a TU60. I assume you have the TU60 drive? If so, do you have media for it? I found a 'stash' of brand new media for a...

I suspect the CTC divider numbers will get somewhat small, and subject to more and more errors at the higher baudrates. I seem to...

>>7 bytes of 8 bits = 56 bits = 8 bytes of 7 bits. Who remembers UUcode? did precisely this ;) Even allowing for the intel hex overhead...

>>> So seven 8-bit bytes 'packed' into every eight 7-bit RS232 characters sent, like this? 7 bytes of 8 bits = 56 bits = 8 bytes of 7...

The advantage of both formats is that they are readable by a human but, as you say, it takes additional time. You could come up with a...

Nice. So, 7-bit ASCII and 8-bit code smacks of dowloading using Intel HEX or Motorola SREC format would be the easiest/most 'standard'...

UD3 is an option ROM. It is, therefore, confusing to have it there. Likewise, UD4 and UD5 are also option ROMs. Can you take (and post)...

It does seem as though there are some environmental (noise) issues in play. Dave

I notice that this particular logic analyser project has user-includable analysis procedures in the form of DLLs. Dave

I'm not sure the caveat is so important: do we really need to "fully test the chip"? If we're trying to troubleshoot a fault...

Go for it. But I am not expecting the keyboard to work properly though! It will still give us another data point. Dave