>>>>Resembles my mechanic's words from ages ago: "it's not your battery that died, it's the coil".
>>
>>Blame Bill... he used that wonderful word "halcyon" that prompted further poetic license, in this case from Hamlet's "To be or not to be" soliloquy. ;-)
>
>At the time when I was learning english, the selected bit of Hamlet that I memorized was "all the world's a stage". The 2b .or. !2b was something I knew in translation, also by heart. Which is weird, learning lines by heart was the thing I generally hated and rarely managed to do. But the few that I did have stayed. Mysterious are the ways of memory.

Yes. Very strange.
I have to look up the syntax of .NET code that I use every day, but I can tell you that the op code for a zero and add to accumulator on an IBM 705III is +13 and zero and subtract is -13.
Also, in Hollerith code the letters J-R use the 11 punch.