#: 6799 S3/Languages
    19-Sep-90  23:01:28
Sb: #6752-#C Libraries
Fm: Greg Morse 72746,3451
To: Kevin Darling (UG Pres) 76703,4227 (X)

Kev - I am looking at a version of RAMMER modified by ?? (name escapes me at
momment). Claims yo have made some minor mods. In any case THIS version does an
OS9 F$MapBlk which should result in legal dat image. I too wondered about any
blocks being free, but it seems to me that OS9 MUST keep at least one DAT slot
free as a "scratch" if only to map different I/O pages etc. But I dont know for
sure, and maybe in a 4K system it can afford too, but in 8K not. Anyway I
figured if RAMMER works with a F$MapBlk then any other I/O modulre should also.
In case you are wondering I am looking at rewritting Pipeman Imagine an I/O
device using F$LDABX to trnasfer 1 byte at a time. That's 37 cycles per byte
minimum, plus the overhead of the SWI2 call! Anyway I figured it was time I
tackled a Manager and pipeman is the easiest one to do. Do you still see it
necessary to disable interrupts in this case? 

There is 1 Reply.