Cleanup for compile without ITS or BBN options.
Cleanup of interrupt handling.
Floating point code now passes random instruction tests with
minor off by +/-1 in lower half of long add/subtract instructions.
RP10 proper handling of not ready flag.
RP10 no seek interrupts while read/write to other drive.
TM10 Clean up off by one bits in upper status.
TM10 Added MT_LASTWD flag to indicate read of last word.
TM10 Proper handling of Record length error.
TM10 Added EOR flag.
TM10 Rewind at BOT now Illegal operation.
TM10A return channel flags as 1 rather then 0.
RH10/disk Handle reset CONO flag.
RH10/disk Generate parity on register read.
RH10/disk No registers can be modified other then attention when
one drive is doing read/write operation.
RH10/disk write register 0 without GO update command.
RH10/disk command to unready drive return RMR error.
RH10/disk Search/seek to invalid CHS returns immediate error.
RH10/RP06 write to error 2 and 3 registers work.
RH10/disk no seek interrupts set when other drive read/write.
Added BBN Pager support
Clean up instruction options table.
Removed some unneeded loads.
Removed unneeded FMB term.
Cleaned up interrupt handling to properly handle PIR events.
Moved dev_pi to be with rest of PI code.
Don't check APR interrupts unless pi system enabled.
CONO APR reset_all does not clear flags on KA10.
Clean up handling of PUBLIC/CONCEALED mode on KI10.
Clean up ITS pager support.
Added fetch flag to page_lookup for ITS/KI and BBN support.
Speed up LDB/DPB instructions to use bulk shift.
Carry 0&1 Flags are not cleared until JFCL instruction.
Fixed bug in LSHC with shift > 36 bits.
Fixed bug in JFCL when run from trap/uuo, bumped PC when it should not..
Shortened loop for BLKI/BLKO instructions.
Mask AR & MQ to FMASK before save in one place.
Removed some debuging code. Fixed Cylinder end flag on RP10 controller.
Appearently TOPS10 on KA10 does not care about this flag, but on KI10
it looks at the flag to determine if the read was correct.
Fix bugs discovered by running diagnostics. KI10 will now pass
all DBKEx diagnostics. RP10 and RC10 drives will pass diagnostics
except those involving parity errors and sector counters which are
not implimented.
Added support for KI style interrupts. Added comments to CPU code.
Fixed bug in MUUO under KI. Fixed RH10 to work under KI. Fixed bugs
in handling of record space under TM10 controller. Added type casting
into DF10 code and verified it works correctly under 22 bit operation.
Started adding support for PDP6.
CPU code redone to better use native operations. Start of KI10 support.
Current passes all CPU diagnostics for KA10 and KI10. 22 Bit addressing
support for KI10 now a seperate option.
Major cleanup to code, set_interrupt() now only looks at 3 lower bits
to determine interrupt level. Some Copyright notices have been updated.
DC10 now handles modem control correctly. And will support up to 32 lines.
Modem lines start at a fixed value and follow the data lines.
Update the RP10 disk controller to handle multiple access and
to properly handle status on a per drive basis. Also added in
start of proper debuging functions. Change CPU to not miss
interrupts when multiple interrupts occur.
