Stéphane Gourichon fidergo-stephane-gourichon

Software professional. All missions dealing with software source code, with a strong bias towards very high quality. Video/audio/signal/AI/GUI/low-level, etc.

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Fidergo
Paris area, France
http://fidergo.fr/

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raxoft / cmwc.asm

Last active August 2, 2022 14:29

Fast quality CMWC random number generator for Z80 I have created to weed out the crap RNGs out there. 32+10 bytes, 146..149 T cycles, period 253*2^59, which is more than 2^66 or 10^20.

	; 8-bit Complementary-Multiply-With-Carry (CMWC) random number generator.
	; Created by Patrik Rak in 2012, and revised in 2014/2015,
	; with optimization contribution from Einar Saukas and Alan Albrecht.
	; See http://www.worldofspectrum.org/forums/showthread.php?t=39632

	org 40000

	call rnd ; BASIC driver
	ld c,a
	ld b,0