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Add bug descriptions discovered by Jack Boyce in Super Star Trek to the main game description.

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Paul Holt
2022-01-16 01:48:34 +11:00
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84_Super_Star_Trek/README.md
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@@ -88,6 +88,17 @@ The relation between the Historical and Standard nomenclatures is shown in the s
15. This version of Star Trek was created for a Data General Nova 800 system with 32K or core. So that it would fit, the instructions are separated from the main program via a CHAIN. For conversion to DEC BASIC-PLUS, Statement 160 (Randomize) should be moved after the return from the chained instructions, say to Statement 245. For Altair BASIC, Randomize and the chain instructions should be eliminated. 15. This version of Star Trek was created for a Data General Nova 800 system with 32K or core. So that it would fit, the instructions are separated from the main program via a CHAIN. For conversion to DEC BASIC-PLUS, Statement 160 (Randomize) should be moved after the return from the chained instructions, say to Statement 245. For Altair BASIC, Randomize and the chain instructions should be eliminated.
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#### Bugs
Many of the programs in this book and this collection have bugs in the original code.
Jack Boyce has discovered and fixed a number of bugs in his [python implementation](python/superstartrek.py), which should be noted by other implementers:
- line `4410` : `D(7)` should be `D(6)`
- lines `8310`,`8330`,`8430`,`8450` : Division by zero is possible
- line `440` : `B9` should be initialised to 0, not 2
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As published in Basic Computer Games (1978): As published in Basic Computer Games (1978):