ROL


Basic Info
Addressing Mode	Opcode	Length	Speed
Accumulator	2A	1 byte	2 cycles
Absolute	2E	3 bytes	6 cycles*
Direct Page	26	2 bytes	5 cycles*
absolute indexed by X	3E	3 bytes	7 cycles*
direct page indexed by X	36	2 bytes	6 cycles*


Flags Affected
N	V	M	X	D	I	Z	C
	.	.	.	.	.

ROL (Rotate Left) is a 65x instruction that rotates a value and the carry flag left one bit. The most significant bit is shifted into the carry flag. The carry flag is shifted into the least significant bit.

Cycle Penalties

Except in accumulator addressing, ROL takes two extra cycles when the accumulator is 16 bits wide.
In direct page addressing modes, ROL takes another extra cycle if the low byte of the direct page register is nonzero.