RT-11 V4 MU-BASIC help

[Sytse van Slooten]

I've used that image quite a bit for testing my vhdl pdp11. So it should work.

>From a quick test, it appears as if the lpt device in the default simh config 
conflicts. If I disable that, mubas works fine for me.

Like so:

sim> set cpu 11/45
sim> set lpt disable
sim> att rk0 rt11v4-mubasicv2.rk
sim> boot rk0

RT-11FB (S) V04.00E 

.SET TT QUIET
?KMON-W-No date
00:00:00
?KMON-F-Illegal device LP:

.R MUBAS

WARNING: DATE NOT SET


MU BASIC-11/RT-11 V2.00R
CONFIGURATION FILE : *1USER
MU BASIC-11/RT-11 IS OPERATIONAL.
PLEASE TYPE IN "HELLO".


Cheers,
Sytse


On Thursday, March 29, 2018 06:46:34 PM Fritz Mueller via cctalk wrote:
> Hello all,
> 
> I would like to try and get MU-BASIC working on my PDP-11/45, under RT-11
> V4.  The best bits I've been able to find to work with so far are the RK05
> image here:
> 
> 	http://bitsavers.trailing-edge.com/bits/DEC/pdp11/discimages/rk05/rt11v4-mu
> basicv2.rk.gz
> 
> ...but I've not had much success getting this to work under simh.  Using the
> 1USER.CNF configuration file in this image, no matter how I configure the
> machine, I get either traps, halts, or stack violations when issuing the
> first command in basic.
> 
> Trying to rebuild MU-BASIC using the indirect files in the image results in
> a linker barf on some undefined symbols.
> 
> Has anybody else here had much luck getting MU-BASIC up and running under
> RT-11 V4?  Is there an alternate image or distribution kit somewhere that I
> could try to work with?
> 
> 	thanks much,
> 	  --FritzM.