[LispM] Outstanding Meroko bugs and a question of my own

[nyef at lisphacker.com]

nyef at lisphacker.com writes: 

> Daniel, everyone else, 

[massive snippage] 

> And now my own cry for help: I was two days into my latest attempt to 
> figure out why my emulator isn't passing the instruction-stream tests from 
> EXPT when I found out about Meroko being released. The specific case I'm 
> having trouble with is when bit 14 is set in the return address for a POPJ 
> and the MCR has the chain-enable bit set. Can anyone tell me what's 
> supposed to happen here? 

Okay, I just figured it out this afternoon. For the curious, my code and 
commentary is available at http://paste.lisp.org/display/12411 . 

Daniel, I'm copying you on this directly to make absolutely sure you get it. 
You know how long it took me to figure it out, I don't want you to have to 
figure it out from scratch. 

 --Alastair Bridgewater