RANDOM

floating point sortword, random value between 0.0 and 1.0

IRANDOM

integer sortword, random value between 0 and 32767

GATE

see IF... and LOOPIF...MASKEDBY|GATEDBY commands

WORDX

see LOOPIF... command

WORDY

see LOOPIF... command

STREAM

Usually set =1

RUNFILE_NUMBER

runfile number of currently sorted tape (1 for first file, etc.)

BLOCK_NUMBER

current block number in currently sorted runfile

LOOP

no longer used, see doloop command