Re: LZ: Info about processor in Ti-85 re


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Re: LZ: Info about processor in Ti-85 re



[snip]


>Then it is not a z80.  It maybe z80 compatible, but it isn't a z80.
Look.  If you don't want to call it a Z80 processor, then don't.  No 
one here says you _HAVE_ to.
Of course, no one says you have to call it a TI-85, either.  You 
could call it a microcomputer.  (And _DON'T_ tell us it's NOT a 
mocrocomputer; it has a microprocessor, RAM, ROM, and i/o devices.  
That _DOES_ qualify it as a microcomputer.)


>How do you know that it has exactly the same insturctions?
We HAVE documentation to prove it.  Also, try writing a program for 
it.  I'd think that should prove this...
Undoucmented commands were previously discussed on this list.  Check 
out the List-ZShell Archives at www.TICalc.org.


>> > Also what is the word size of this processor? 8-bit?
>>Memory addresses are 16-bit
>Yes I know it has 16 bit addressing.  But what is its word size?
>The address size is not always the same as the word size.
True.  You need to know:  A WORD is always two (2) bytes, or sixteen 
(16) bits.  A BYTE is always eight (8) bits.
This Z80 Processor uses 16 bit addressing and 8 bit data processing, 
if that is what you mean.


Cheers,




____
~Keith
FFNP69C@PRODIGY.COM


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