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X-Hacker.org- Assembly Language - <b>std set direction flag flags: o d i t s z a p c</b>
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STD Set Direction Flag Flags: O D I T S Z A P C
1
Logic: DF . 1 (Decrement in string instructions)
STD sets the Direction Flag. No other flags are affected. Setting the
direction flag causes string operations to decrement SI and DI.
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Operands Clocks Transfers Bytes Example
no operands 2 - 1 STD
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See Also: CLD STC CLC CMC STI CLI Flags
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