📄 help.sub.html
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<html><title>Instruction : sub</title><h1>sub</h1>This instruction reads in the contents of the BX and CX <a href="help.Registers.html">registers</a> and subtracts CX from BX. The result of this operation is then placed in the <a href="help.Nop-Register-Notation.html">?BX?</a> register.⌨️ 快捷键说明
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