Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
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SCAS Instruction
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 1010111w
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 SCAS  [ES:]dest   │ repne  scasw            │ 88/86 15 (W88=19)
 SCASB [[ES:]dest] │ repe   scasb            │   286 7
 SCASW [[ES:]dest] │ scas   es:destin        │   386 7
 SCASD [[ES:]dest] │                         │   486 6
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