rl

Operands

rl r | rl (rr) | rl (ii+dd),r | rl (ii+dd)

The contents of B are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0.

Variants

Every form of rl the assembler accepts. The cycles column counts clock cycles, written as taken/not taken for the conditional forms.

Instruction	Description	Flags	Bytes	Cycles
rl b	The contents of B are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0.	CN=0P/V=PH=0ZS	2	8
rl c	The contents of C are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0.	CN=0P/V=PH=0ZS	2	8
rl d	The contents of D are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0.	CN=0P/V=PH=0ZS	2	8
rl e	The contents of E are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0.	CN=0P/V=PH=0ZS	2	8
rl h	The contents of H are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0.	CN=0P/V=PH=0ZS	2	8
rl l	The contents of L are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0.	CN=0P/V=PH=0ZS	2	8
rl (hl)	The contents of (HL) are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0.	CN=0P/V=PH=0ZS	2	15
rl a	The contents of A are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0.	CN=0P/V=PH=0ZS	2	8
rl (ix+dd),b undocumented	The contents of the memory location pointed to by IX plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in B.	CN=0P/V=PH=0ZS	4	23
rl (ix+dd),c undocumented	The contents of the memory location pointed to by IX plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in C.	CN=0P/V=PH=0ZS	4	23
rl (ix+dd),d undocumented	The contents of the memory location pointed to by IX plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in D.	CN=0P/V=PH=0ZS	4	23
rl (ix+dd),e undocumented	The contents of the memory location pointed to by IX plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in E.	CN=0P/V=PH=0ZS	4	23
rl (ix+dd),h undocumented	The contents of the memory location pointed to by IX plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in H.	CN=0P/V=PH=0ZS	4	23
rl (ix+dd),l undocumented	The contents of the memory location pointed to by IX plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in L.	CN=0P/V=PH=0ZS	4	23
rl (ix+dd)	The contents of the memory location pointed to by IX plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0.	CN=0P/V=PH=0ZS	4	23
rl (ix+dd),a undocumented	The contents of the memory location pointed to by IX plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in A.	CN=0P/V=PH=0ZS	4	23
rl (iy+dd),b undocumented	The contents of the memory location pointed to by IY plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in B.	CN=0P/V=PH=0ZS	4	23
rl (iy+dd),c undocumented	The contents of the memory location pointed to by IY plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in C.	CN=0P/V=PH=0ZS	4	23
rl (iy+dd),d undocumented	The contents of the memory location pointed to by IY plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in D.	CN=0P/V=PH=0ZS	4	23
rl (iy+dd),e undocumented	The contents of the memory location pointed to by IY plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in E.	CN=0P/V=PH=0ZS	4	23
rl (iy+dd),h undocumented	The contents of the memory location pointed to by IY plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in H.	CN=0P/V=PH=0ZS	4	23
rl (iy+dd),l undocumented	The contents of the memory location pointed to by IY plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in L.	CN=0P/V=PH=0ZS	4	23
rl (iy+dd)	The contents of the memory location pointed to by IY plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0.	CN=0P/V=PH=0ZS	4	23
rl (iy+dd),a undocumented	The contents of the memory location pointed to by IY plus `dd` are rotated left one bit position. The contents of bit 7 are copied to the carry flag and the previous contents of the carry flag are copied to bit 0. The result is then stored in A.	CN=0P/V=PH=0ZS	4	23