register-impoverished childhoods was Re: Z80 TRAP and CP/M

[Chuck Guzis]

On 4/5/2006 at 10:57 AM Kevin Handy wrote:

>> The first computer I got to use was a PDP-8. You get a Program Counter
>> and a Accumulator. :)
>>
>And NO stack. Might as well mention the intresting missing items too.

My first "Hands on" was an IBM 1620.  No accumulator or stack.  Decimal
arithmetic--and you had to load the addition and mulitplication tables
yourself.  Variable word and record length, so you could easily clear
memory several ways using a single instruction...sometimes when you
actually intended to do it.

Lotsa blinkenlights, though!

Cheers,
Chuck