ZAX ICD-378 Z80 Hardware debugger

Tony Duell ard at
Thu Dec 10 15:19:07 CST 2009

 > There's no way in hell I'd want to try and fix one of the old ICE's we 
> used for 8051s at my work. Talk about a pandora's box! 

Why do you say that? 

The ZAX ICE that I have seems to consist basically of a Z80 processor, 
memory to capture actesses to the target system (a sort-of dedicated 
logic analyser) and not too much else. The Z80is switched beterrn the 
target system, and a monitor program in ROM in the ICE box which lets you 
examine/chnge memory, registers, etc.

OK, it's 3 or 4 boards of chips, but that's by no means the most 
complicated thing I've worked on.


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