RosettaCodeData/Task/Linear-congruential-generator/BBC-BASIC/linear-congruential-generat...

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@% = &D0D
PRINT "MS generator:"
dummy% = FNrandMS(0)
FOR i% = 1 TO 10
PRINT FNrandMS(-1)
NEXT
PRINT '"BSD generator:"
dummy% = FNrandBSD(0)
FOR i% = 1 TO 10
PRINT FNrandBSD(-1)
NEXT
END
DEF FNrandMS(seed%)
PRIVATE state%
IF seed% >= 0 THEN
state% = seed%
ELSE
state% = FNmuladd(state%, 214013, 2531011)
ENDIF
= state% >> 16
DEF FNrandBSD(seed%)
PRIVATE state%
IF seed% >= 0 THEN
state% = seed%
ELSE
state% = FNmuladd(state%, 1103515245, 12345)
ENDIF
= state%
DEF FNmuladd(A%,B%,C%) : PRIVATE M% : LOCAL P% : IF M% = 0 DIM P% 8
IF P% THEN [OPT 0 : .M% mul ebx : add eax,ecx : btr eax,31 : ret :]
= USR M%