URL https://opencores.org/ocsvn/plasma/plasma/trunk

Subversion Repositories plasma

[/] [plasma/] [trunk/] [kernel/] [libc.c] - Diff between revs 352 and 379

Rev 352	Rev 379
Line 181...	Line 181...
`{`	`{`
`return n>=0 ? n : -n;`	`return n>=0 ? n : -n;`
`}`	`}`


`static uint32 Rand1=0x1f2bcda3, Rand2=0xdeafbeef, Rand3=0xc5134306;`	`static uint32 Rand1=0x1f2bcda3;`
`int rand(void)`	`int rand(void)`
`{`	`{`
`int shift;`	`Rand1 = 1664525 * Rand1 + 1013904223; //from D.E. Knuth and H.W. Lewis`
`Rand1 += 0x13423123 + Rand2;`
`Rand2 += 0x2312fdea + Rand3;`
`Rand3 += 0xf2a12de1;`
`shift = Rand3 & 31;`
`Rand1 = (Rand1 << (32 - shift)) \| (Rand1 >> shift);`
`Rand3 ^= Rand1;`
`shift = (Rand3 >> 8) & 31;`
`Rand2 = (Rand2 << (32 - shift)) \| (Rand2 >> shift);`
`return Rand1;`	`return Rand1;`
`}`	`}`


`void srand(unsigned int seed)`	`void srand(unsigned int seed)`