HP67 Moon Rocket Lander.



#2

Can anyone provide me with a listing of the original 'Moon Rocket Lander' program for the HP97/67 along with a sample program run.

I need a test program and I can't think of a better place to start (well I probably can, but it wouldn't be nearly as nostalgic or as much fun!)

Thanks

Mike T.


#3

http://www.hpmuseum.org/software/41td/land67.htm

This should be a faithful listing, though presented as a program that can be run on a HP-41 with a card reader. Apparently it came from a genuine HP-67 Moon Lander game program card.

The compatible instructions such as:

7DSP4 or 7DSP0 are just 
DSP 4 and DSP 0 on the 67
Some constants will take up more than one line, especially "50-" which ends up being:
5
0
CHS
Hopefully you can figure out any other oddities.

#4

The "Standard Pac" program-guide lists 95 steps for the "Moon Rocket Lander".

tm


#5

Following the guidance above I get the following program which encouragingly is 95 steps long. However if I just let it run to completion on my HP67 simulator without entering anything it halts with an Error 4 message, could anyone confirm that I have converted all the steps correctly?

001 31 25 11 
002 05
003 00
004 00
005 33 06
006 05
007 00
008 42
009 33 07
010 06
011 00
012 33 08
013 31 25 09
014 34 06
015 23 04
016 43
017 04
018 81
019 34 07
020 35 61 02
021 31 71
022 35 51 02
023 35 64
024 61
025 35 71 02
026 42
027 35 72
028 35 72
029 23 00
030 34 08
031 35 72
032 03
033 35 72
034 02
035 35 72
036 01
037 35 72
038 00
039 35 72
040 31 25 05
041 34 08
042 35 52
043 32 81
044 22 02
045 33 51 08
046 02
047 71
048 05
049 51
050 33 09
051 02
052 81
053 34 06
054 61
055 34 07
056 61
057 34 09
058 33 61 07
059 35 53
060 33 06
061 31 83
062 31 81
063 22 09
064 31 25 03
065 23 00
066 34 07
067 34 04
068 35 72
069 22 04
070 31 25 02
071 34 08
072 02
073 83
074 05
075 51
076 33 61 06
077 02
078 71
079 33 61 07
080 34 06
081 01
082 00
083 71
084 34 07
085 32 54
086 61
087 31 54
088 42
089 22 04
090 31 25 12
091 05
092 33 51 08
093 00
094 22 05
095 84

Many Thanks


Mike T.

#6

Mike
Line 067 should be 31 25 04 (f lbl 4), instead of 34 04. I ran the program like you described, on a real 67 and your emulator gets the same numbers as the real 67. I also entered 2, 20 unit burns and the velocity an altitude numbers matched, although to get the burns entered, I had to enter the first digit, which stopped the program, then entered the burn again, then hit r/s. The real calculator takes the burn that was entered during the "0" pause, and keeps on going, no r/s is needed to keep the program running. Hope this helps.
Bob Frazee

#7

Well, lets try this again.

Mike

Line 067 should be 31 25 04 (f lbl 4), instead of 34 04. I ran the program like you described, on a real 67 and your emulator gets the same numbers as the real 67. I also entered 2, 20 unit burns and the velocity and altitude numbers matched, although to get the burns entered, I had to enter the first digit, which stopped the program, then entered the burn again, then hit r/s. The real calculator takes the burn that was entered during the "0" pause, and keeps on going, no r/s is needed to keep the program running. Hope this helps.

Bob Frazee


#8

I ran it through on my 67, and as Bob points out the only error from the original listing is in Line 067 (isn't that a coincidence!): Correct is 31 25 04.

tm


#9

Many thanks to you both. Now to fix the problem with digit entry during pause...

Mike T.


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