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Instruction Reference Manual
83
Description
Rotates to the left with the Carry Flag, CF, the contents of register DE. Each bit in the register moves to the
next highest-order bit position (bit 0 moves to bit 1, etc.) while the CF moves to bit 0 and bit 15 moves to the
CF. See Figure 1 on page 82. This instruction was implemented for the Rabbit and is not available for the
Z180.
Description
Rotates to the left with the Carry Flag, CF, the contents of the register r (any of the register A, B, C, D, E, H,
or L). Each bit in the register moves to the next highest-order bit position (bit 0 moves to bit 1, etc.) while the
CF moves to bit 0 and bit 7 moves to the CF. See Figure 1 on page 82.
RL DE
Opcode
Instruction
Clocks
Operation
F3
RL DE
2
{CF,DE} = {DE,CF}
Flags
ALTD
I/O
S
Z
L/V
C
F
R
SP
S
D
•
•
L
•
•
•
RL r
Opcode
Instruction
Clocks
Operation
——
CB 17
CB 10
CB 11
CB 12
CB 13
CB 14
CB 15
RL r
RL A
RL B
RL C
RL D
RL E
RL H
RL L
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
4 (2,2)
{CF,r} = {r,CF}
{CF,A} = {A,CF}
{CF,B} = {B,CF}
{CF,C} = {C,CF}
{CF,D} = {D,CF}
{CF,E} = {E,CF}
{CF,H} = {H,CF}
{CF,L} = {L,CF}
Flags
ALTD
I/O
S
Z
L/V
C
F
R
SP
S
D
•
•
L
•
•
•
Summary of Contents for 2000
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