19 lines
485 B
Forth
19 lines
485 B
Forth
fn next-random prev: int -> _/edi: int {
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# https://en.wikipedia.org/wiki/Linear_congruential_generator#Parameters_in_common_use
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var a/ecx: int <- copy 0x4b/75
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var c/edx: int <- copy 0x4a/74
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var m/ebx: int <- copy 0x10001
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var next/eax: int <- copy prev
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next <- multiply a
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next <- add c
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next <- remainder next, m
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return next
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}
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fn remainder a: int, b: int -> _/eax: int {
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var q/eax: int <- copy 0
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var r/edx: int <- copy 0
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q, r <- integer-divide a, b
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return r
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}
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