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fix bug in knuth RNG (#1757)

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* fix bug in knuth RNG

* real fix, thanks ManDude

* cleanup negation
This commit is contained in:
Matt Dallmeyer
2022-08-14 13:50:40 -07:00
committed by GitHub
parent 2313d35800
commit a77f8ae66d
1 changed files with 2 additions and 2 deletions
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goal_src/jak1/pc/util/knuth-rand.gc
+2 -2
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@@ -60,9 +60,9 @@
(val 0))
;; if ((bound & -bound) == bound) // i.e., bound is a power of 2
(if (= (logand bound (* -1 bound)) bound)
(if (= (logand bound (- bound)) bound)
;; return (int)((bound * (long)next(31)) >> 31);
(return (sar (* bound (knuth-rand-next 31)) 31))
(return (+ min (sar (imul64 bound (knuth-rand-next 31)) 31)))
)
;; do {