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  Title:    Loop                                  Flags: O D I T S Z A P C
                                                         ═════════════════
  Syntax:   LOOP label                                        -none-
            LOOPW
            LOOPD
 
  See also: LOOPE, .REPEAT, JCXZ
 
  Description:
 
     Loops repeatedly to a specified label. LOOP decrements CX (without
     changing any flags) and, if the result is not 0, transfers
     execution to the address specified by the operand.
 
     On the 80386/486, LOOP uses the 16-bit CX in 16-bit mode and the
     32-bit ECX in 32-bit mode. The default can be overridden with the
     LOOPW (CX) or LOOPD (ECX) forms of the instruction.
 
     If CX is 0 after being decremented, execution continues at the
     next instruction. The operand must specify a short label (between
     -128 and +127 bytes from the instruction following the LOOP
     instruction).
                                    -♦-