飞思卡尔清零、求反、取负指令:

CLC Clear C bit in CCR 0→C

CLI Clear I bit in CCR 0→I

CLR Clear memory $00→M

例如:CLR$F3;将$F3地址单元清零。

CLRA Clear A $00→A

CLRH Clear H O→H

CLRX Clear X O→X

COM Complement memory,1一byte $FF一(M)→M

COMA Complement A,1一byte SFF一(A)→A

COMX Complemem X,1一byte SFF一(X)→X

NEG Complement memory,1一byte $00一(M)→M

NEGA Com#ement A,1一byte $00一(A)→A

NEGX ComplementX,1一byte $FF一(X)→X

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