 +_____________________________________________________________________
  AUTHOR:                                          DR:              
  TRENT METCALF         PASS REQUIREMENT WAIVER         105289      
 ____________________                             __________________
  ORG/PHONE:          WAIVER ONLY (X)              DATE:            
  IBM/282-8436        WAIVER/OPS NOTE ( )               10/15/91    
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  OI/FLIGHT EFFECTIVITY:          USER AFFECTED:                     
   OI-8F AND SUBS                 CREW ( )  GROUND ( )  DUMP ONLY (X)
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         MAJOR SOFTWARE AREA:        OPS MODES AFFECTED:             
 SSW (X)  GNC (X)  VU (X)  SM/PL (X) ALL                             
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  SOFTWARE SUB-AREA: HW                                               
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  PRINCIPAL FUNCTIONS:                                                
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  TITLE:                                                              
         INCORRECT OPERATION OF MVH INSTRUCTION                       
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  REQUIREMENT TO BE WAIVED:                                           
                                                                      
  A MVH (MOVE HALFWORD) ASSEMBLY INSTRUCTION WHERE THE SOURCE ADDRESS 
  IS 1 HW GREATER THAN THE DESTINATION ADDRESS, THE NUMBER OF HWS TO  
  BE MOVED IS GREATER THAN 1, AND THE HIGH ORDER BIT OF THE ADDRESSES 
  ARE NOT EQUAL, WILL FAIL.                                           
                                                                      
                                                                      
                                                                      
                                                                      
                                                                      
                                                                      
                                                                      
                                                                      
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 REQUIREMENTS DOC:                    PARAGRAPH AND/OR SECTION NO:   
   SPACE SHUTTLE PRINCIPLES OF          SECTION 9.4 - MOVE HALFWORD  
     OPERATION - 85-C67-001 (IBM/FSD)                 OPERANDS       
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 ALTERNATE REQUIREMENT BEING MET, IF APPLICABLE:                      
                                                                      
  IF THE SOURCE AND DESTINATION ADDRESSES ARE MORE THAN 1 HW APART OR 
  THE NUMBER OF HWS TO BE MOVED IS EXACTLY 1 OR THE HIGH ORDER BIT    
  OF THE ADDRESSES ARE EQUAL, THEN THE MVH WORKS CORRECTLY.           
                                                                      
                                                                      
                                                                      
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 CONCURRENCE:                           APPROVAL:                    
 IBM: PATTI A. THORNTON    DATE 12/03/91                             
     --------------------      ---------                             
 FDSD: ROBERT N. HINSON    DATE 12/05/91                             
      -------------------      --------- DARRELL E. STAMPER 02/04/92 
 PF MGR:ELIZABETH FOUNTAIN DATE 12/12/91---------------------------- 
        ------------------     --------- CHAIRMAN, SASCB      DATE   
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