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MICROPROCESSOR INSTRUCTION REFERENCE->ROL

ROL    Rotate memory left

C <-  bit7 <-....<- bit0 <- C

Condition Code Register:

C  Set to bit 7 of operand
V  Set if N 'eor' C = 1 after execution, else cleared
Z  Set if result Zero, else cleared
N  Set if result Negative, else cleared
I  Not affected
H  Not affected


    

Addressing mode	Assembler syntax
Index X:	ROL <exprn.>,X
Index Y:	ROL <exprn.>,Y
Extend:	ROL <exprn.>