?? help.shift-l.html
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<html><title>Instruction : shift-l</title><h1>shift-l</h1>This instruction reads in the contents of the <a href="help.Nop-Register-Notation.html">?BX?</a> register, and shifts all of the bits in that register to the left by one, placing a zero as the new rightmost bit, and trunkating any bits beyond the 32 maximum. For values that require fewer than 32 bits, it effectively multiplies that value by two.?? 快捷鍵說明
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