This reminded me of an instruction on the Power PC Micro Processor: Enforce In-Order Execution of I/O with the assembler code of EIEIO

I considered this to be the Old McDonald of instructions.


On 12/4/2024 2:24 PM, Tony Duell wrote:
On Wed, Dec 4, 2024 at 8:13 PM Mike Katz <[email protected]> wrote:

And of course the best instruction in the chip was Sign Extend B into
A.  That instruction was SEX in the Motorola assembler.

CLR    B
SEX

was the same as

CLR    A
CLR    B

But then you could have sex in your code🙂

Hey, when I was in my 20's and programing the 6809 that was fun.
In the UK there was a home computer based on the same Motorola
schematic called the Dragon. Similar to the CoCo, but not identical.
Anyway it was well-known at the time 'You can have SEX with a Dragon'

-tony

Reply via email to