8080 Assembler-Text Editor (ATE)
Roy J. Tellason
rtellason at blazenet.net
Thu Apr 20 12:40:29 CDT 2006
On Thursday 20 April 2006 12:03 am, Chuck Guzis wrote:
> On 4/19/2006 at 11:34 PM Roy J. Tellason wrote:
> >> But a Z80 *won't* run 808 code.
> Well, a Z80 will run 8085 code that limits itself to 8080 instructions.
> But the 8085 has two documented instructions (RIM SIM) that the 8080
> doesn't have--
Yeah, I remember those two...
> and a few more "undocumented" instructions (nonetheless used by many
> embedded programs) that neither the 8080 nor the Z80 has.
I remember some real early magazine articles, and have since found a bit of
stuff online, that talked about undocumented opcodes for the z80, but I've
not run across that info for anything else. And it seems to depend a lot on
what brand of chip, etc. so I've never been really tempted to use them.
> Initially I thought that the Rabbit was a good idea--until I started to
> program it. What did you do with (insert a list of instructions)? And an
> interesting bug or two. Feh.
I haven't yet looked at that, got enough going on here to keep me busy...
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