HP 3000 Manuals

HP TRANSACT Quick Reference Guide

WHILE 

     WHILE condition-clause statement;

     CONDITION CLAUSE 
     test-variable relational-operator value[,value...][{AND|OR}...]

     TEST VARIABLES 
     (item-name[(subscript)])
     arithmetic-expression 
     EXCLAMATION - Status of automatic null response
     FIELD       - Status of the FIELD option
     INPUT       - Last value input to INPUT
     PRINT       - Status of PRINT option
     REPEAT      - Status of REPEAT option
     SORT        - Status of SORT option
     STATUS      - Value of STATUS register

     RELATIONAL OPERATORS 
     =
     <>
     <
     <=
     >
     >=
     [REV BEG]
     VALUES FOR ITEM NAME TEST VARIABLE 
     (item-name[(subscript)])
     arithmetic-expression 
     "character-string"
     class-condition 
     expression 
     number[REV END]
     [REV BEG]
     CLASS CONDITIONS WHEN RELATIONAL OPERATOR IS "=" OR "<>" 
     NUMERIC
     ALPHABETIC
     ALPHABETIC-LOWER
     ALPHABETIC-UPPER[REV END]
     [REV BEG]
     VALUES FOR ARITHMETIC EXPRESSION TEST VARIABLE 
     (item-name[(subscript)])
     arithmetic-expression 
     number[REV END]
      [REV BEG]
     VALUES FOR EXCLAMATION, FIELD, PRINT, REPEAT, SORT, STATUS TEST VARIABLES 
     arithmetic-expression 
     number[REV END]
     [REV BEG]
     VALUE FOR INPUT TEST VARIABLE 
     "character-string"[REV END]

Example 

     WHILE (A)>10 LET (A)=(A)/10;

MPE/iX 5.5 Documentation