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Merge pull request #510 from pcholt/main
Add @jkboyce 's bug discoveries to the super star trek readme
This commit is contained in:
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.gitignore
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5
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.vscode/
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.vscode/
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.gradle/
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.gradle/
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node_modules/
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node_modules/
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buildJvm/
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buildJvm/bin
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buildJvm/*/build/
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build.gradle
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.project
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import java.util.Arrays;
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import java.util.Arrays;
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import java.util.Scanner;
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import java.util.Scanner;
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public class main {
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public class Name {
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public static void printempty() { System.out.println(" "); }
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public static void printempty() { System.out.println(" "); }
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@@ -88,6 +88,17 @@ The relation between the Historical and Standard nomenclatures is shown in the s
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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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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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---
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#### Bugs
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Many of the programs in this book and this collection have bugs in the original code.
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@jkboyce has done a great job of discovering and fixing a number of bugs in the [original code](superstartrek.bas), as part of his [python implementation](python/superstartrek.py), which should be noted by other implementers:
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- line `4410` : `D(7)` should be `D(6)`
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- lines `8310`,`8330`,`8430`,`8450` : Division by zero is possible
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- line `440` : `B9` should be initialised to 0, not 2
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---
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---
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As published in Basic Computer Games (1978):
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As published in Basic Computer Games (1978):
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