On Tue, 25 Apr 2000 16:10:05 +0200, [EMAIL PROTECTED] wrote:
>> Same on Z180. The Z80 already had 64k I/O, when using OUT (C),r or IN
>A,(n).
>?? Z80 has 256 I/O addresses, not 64k! It only uses the lower byte of the
>address
>lines to address I/O ports. I don't know about Z180, but my guess
>is that that processor uses 16-bits I/O adressing space (equals 64k)
Z80 has 64K address I/O ports. It's not "usual" to usem them, thought.
Abra�OS/2, Daniel Caetano ([EMAIL PROTECTED])
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