From the NannyMUD documentation

LAST CHANGE

2000-12-19

FUNCTION

NAME
        frnd - A fast and dirty random generator.


SYNTAX
	int *frnd([int MAX [, int MIN [, int NR [, int SEED]]]])

DESCRIPTION
	This is a fast (well, it's LPC) and dirty random number generator
	that will produce an array of random numbers. The periodicity is only
	about 2**30, which is considered quite bad.

	The routine returns a sequence of NR consecutive random integers in
	an array.  The numbers are all in the range [MIN, MAX]
	(i.e. including both MIN and MAX in the range). The SEED is used to
	set the starting point of the sequence. It is a good idea to keep
	SEED in the interval [MIN, MAX].


EXAMPLE
	frnd(100, 0, 5, 0)	gives	({ 21, 20, 0, 66, 70 })
	frnd(1, 0, 5, 0)	gives	({ 0, 0, 0, 1, 1 })
	frnd(1, -1, 5, 1)	gives	({ -1, 1, 1, 0, 1 })


NOTE
	There are no sanity checks on things here, as that would slow it
	down.  Also, LPC is slow enough as it is, even on a good day. Thus,
	it is YOUR responsibility to give valid values.

	If you demand a very big array, strange buffers might overflow or you
	can get the dreaded 'Too long evaluation' error message.