- using in tcl 8.6 a timed `after` together with `tclreadline` injects
spurious text of the form `after#nnn` into the readline input buffer.
- the `rw11/shell` overloads `unknown`, inviting for a bloody HACK which
simply checks for such prefixes, scrubs them, and retries the command.
- dmcmon has now the sta,sto,sus,res logic as rbmon and ibmon
- dmcmon does not depend on full state number generation anymore
- dmcmon missed WAIT instructions so far, has been fixed
- related changes:
- pdp11_sequencer can now return a simple instruction type based snum
- sys_w11a_n4 includes dmcmon again (now independent of dmscnt!)
- tools/tcl/rw11/shell.tcl
- rename all command, add leading '.' to guarantee uniqueness
- add .csus,.csto,.cres,.csta: suspend, stop, reset and start CPU
- add .cme,.cmd,.cml: enable, disable and list cpu monitor (dmcmon)
- add .ime,.imd,.imf,iml: enable, diable, setup filter and list ibus monitor
- add ?m,?u: show mmu and ubmap status
- add .hr: help on registers
- improve buildin help, better .h and additional .ha (for aspec's)
- redo ^D,.q..qq logic (assuming that it's default shell in ti_w11)
- tools/tcl
- ibd_ibmon/util.tcl: add proc filter
- rw11/dmcmon.tcl: cm_print: protect against empty lists
