6.1.0890
CELLS
 
CORE
 
( n1 -- n2 )

n2 is the size in address units of n1 cells.

See:
A.6.1.0880 CELL+, A.6.1.0890 CELLS.

Rationale:
Example:
CREATE NUMBERS 100 CELLS ALLOT
Allots space in the array NUMBERS for 100 cells of data.
Testing:
: BITS ( X -- U )
   0 SWAP BEGIN DUP WHILE
     DUP MSB AND IF >R 1+ R> THEN 2*
   REPEAT DROP ;

( CELLS >= 1 AU, INTEGRAL MULTIPLE OF CHAR SIZE, >= 16 BITS )
T{ 1 CELLS 1 <         -> <FALSE> }T
T{ 1 CELLS 1 CHARS MOD ->    0    }T
T{ 1S BITS 10 <        -> <FALSE> }T