The third revision of my ROM disassembly.
Most fatal (and non-fatal) error messages from the high rom were decoded and are present in clear text now (for example, 33 Contention).
Also added descriptions of some video and keyboard registers where it made sense (to me) Disassembly of Rainbow LOW ROM 16K v3
[IDA Freeware v5 source included]EDIT: found a link to an OCR'ed version of the Rainbow 100 PC100 System Specification (March 1983).
Hope it isn't already linked elsewhere: http://archive.org/details/dec-rainbow-100-specs
Looks quite useful when read together with the technical manual (interrupt tables, some video registers...)