Talk:Installing SITS on SIMH
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MB11
Noel, have you ever heard about an MB11 device? It's described like this in SITS:
;MB11 MAR AND HISTORY REGISTER MBCSR=170000+0 ;CONTROL AND STATUS MBXHGH=MBCSR+2 ;HIGH BITS OF X REGISTER MBXLOW=MBCSR+4 ;LOW BITS OF X REGISTER MBYHGH=MBCSR+6 ;HIGH BITS OF Y REGISTER MBYLOW=MBCSR+10 ;LOW BITS OF Y REGISTER MBHHGH=MBCSR+12 ;HIGH BITS OF HISTORY REGISTER MBHLOW=MBCSR+14 ;LOW BITS OF HISTORY REGISTER MBHCNT=MBCSR+16 ;HISTORY MEMORY COUNTER ;BREAK VECTOR MBBRV=374
I have not found any documentation, e.g. on Bitsavers.
