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  Title:    Loop If                               Flags: O D I T S Z A P C
                                                         ═════════════════
  Syntax:   LOOPE label                                        -none-
            LOOPNE label
            LOOPZ label
            LOOPNZ label
            LOOPEW label
            LOOPNEW label
            LOOPED label
            LOOPNED label
            LOOPZW label
            LOOPNZW label
            LOOPZD label
            LOOPNZD label
 
  See also: CMP, .REPEAT, .WHILE, JCXZ, LOOP
 
  Description:
 
     Loops repeatedly to a specified label if the condition is met and
     if CX is not 0. On the 80386/486, these instructions use the
     16-bit CX in 16-bit mode and the 32-bit ECX in 32-bit mode. This
     default can be overridden with the W (CX) or D (ECX) forms of the
     instruction.
 
     The instruction decrements CX without changing any flags and tests
     whether the zero flag was set by a previous instruction (for
     example, CMP). With the synonyms LOOPE and LOOPZ, execution is
     transferred to the label if the zero flag is set and CX is not 0.
     With the synonyms LOOPNE and LOOPNZ, execution is transferred to
     the label if the zero flag is cleared and CX is not 0.
 
     Execution continues at the next instruction if the condition is
     not met. Before entering the loop, CX should be set to the maximum
     number of repetitions desired.
                                    -♦-