VT11/GT40 Lunar Lander files
preliminary README phil
Phil Budne
February 9, 2004
Lunar lander startup can take forever (lander uses spin loop to count
down time for display of starting screen. This may be due to the fact
that SIMH only tracks cycles in terms of instructions, not execution
time). To speed up display of the startup screen, deposit a 1 in
location 32530 after loading the lander program, and before starting
it;
sim> ! Set CPU to a Unibus system type
sim> set cpu 11/70
sim> ! Enable DLI device so VT device autoconfigures
sim> ! with a starting vector of 320
sim> set dli enable
sim> set dli line=2
sim> ! Enable VT device
sim> set vt enable
sim> load lunar.lda
sim> dep 32530 1
sim> run
Lunar lander only needs a small screen area, and can run using a
simulated "VR14" display, which can fit on many computer screens
without scaling:
sim> set vt crt=vr14
sim> set vt scale=1
For more information on the VT11/GT40 see
http://www.brouhaha.com/~eric/retrocomputing/dec/gt40/
lunar.txt
Lunar lander instructions
(from ???)
lunar.lda
PDP-11 Paper Tape (LDA) format
http://www.brouhaha.com/~eric/retrocomputing/dec/gt40/software/moonlander/lunar.lda
lunar.dag
PDP-11 Paper Tape (LDA) format
above(?) as patched by Doug Gwyn to fix a spelling error?
load fails with bad checksum under 3.2-preview2?
gtlem.mac
Does not match above binaries??
http://www.brouhaha.com/~eric/retrocomputing/dec/gt40/software/moonlander/gtlem.mac
