7 Nov
2005
7 Nov
'05
11:57 p.m.
Allison wrote:
Well save for wrap around. The stack on 8008 is
strictly
address and as already said 14bits (the 8008 only addresses
16k!!) and 8 levels deep.
It was a challenge programming it to figure out where you
came from and also not blow the stack. Still it beat the
design we had before it as that was around 220 pcs of TTL
sequential logic.
The interrupt/reset logic was pretty strange too.
Allison
I am glad that DEC threw away the 220 ICs design,
and put in the 8008 :-)
- Henk.
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