Plaz wrote:
Using your perspective of "hardware emulation" we could say that the first A1000 was simply a hardware emulation of this....Lorraine.
No we couldnt.
Plaz wrote:
The chipset inside the A1000 was just a hardware emulation of the original prototype that used TTL, eproms and wirewrap.
No it isnt. The logic which was inside the A1000 OCS chips was identical (albeit with bug fixes, enhancements etc.) with that of the lorraine. The same schematics were probably used for both. After all the same people created both. MiniMig, the logic will be different. It is a re-interpretation.
Plaz wrote:
I would concider the minimig's FPGA a logical technilogical progression to the outdated chipset in an A500 as the OCS chipset was to the proto boards of the Lorraine.
Not true, the MiniMig is a re-interpretation of the OCS chipset based on the HRM and some inspired guess work.
Imagine it like the translation of a book. The Lorraine and A1000 chips were written in the same language (Schematics), by the same authors at approximately the same time and copied almost 1:1.
Minimig was translated from ENGLISH (HRM) to VERILOG by a different author, some 25 years later, some parts of the ENGLISH were vague and open to interpretation, there is going to be translation errors, not to mention parts which do not have any direct translation and the author has to normalise the process.
