cclist at sydex.com
Fri Apr 20 03:03:36 CDT 2007
On 19 Apr 2007 at 18:00, Allison wrote:
> Was that Charlie or Ted? I'd like to see the report or erata mostly
> since it would fit nicely in my NEC file.
I believe my contact was Rich Naro, but I'll have to check my old
correspondence to make sure I'm not hallucinating.
IIRC, there was also an interesting problem with the V20 and
emulation mode using an 8087. If you had an 8080 opcode that
corresponded to an NDP instruction, doing a BRKEM near it could
produce interesting results. The fix was to fill 8 bytes either side
of the BRKEM with some known non-NDP opcodes, like NOPs.
> By time the V20 hit the street I was running hand upd780s at 8mhz
> and had at least three s100 crates going.
When did the Z80H hit the street? Now, you can get a VHDL version
that runs in an FPGA at what, something like 40 MHz?
> Still have it and use it, interesting tool.
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