Breakes unsigned 32bit number to bytes.
fromu32[i, x]
#<result> = fromu32[3000, hex[AABBCCDD]] (print,#3000) (print,#3001) (print,#3002) (print,#3003)
result:
170 ;0xAA in hex 187 ;0xBB in hex 204 ;0xCC in hex 221 ;0xDD in hex
fromu16, froms16, froms32