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MICROPROCESSOR INSTRUCTION REFERENCE->SUBB

Subtract Memory from accumulator B

Compatibility: 6800, 6802, 6803, 6303R, 6303X, 6303Y

B - M -> B

Condition Code Register

C  Set if carry generated, else cleared
V  Set on overflow, else cleared
Z  Set if result zero, else cleared
N  Set if result negative, else cleared
I  Not affected
H  Not affected

    

Addressing mode	op	cyc	bytes	Assembler syntax
Immed.:	C0	2	2	SUBB #<exprn.>
Direct:	D0	3	2	SUBB <exprn.>
Index :	E0	4	2	SUBB <exprn.>,X
Extend:	F0	4	3	SUBB <exprn.>