Rabbit 2000, Reference Manual

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46 Rabbit 2000/3000 Microprocessor
Description
•
LD (IY+d),HL:
Loads the data in register L into the memory location whose address is the
sum of the data in index register IY and a displacement value d. Then, loads the data in register H
into the memory location whose address is the sum of the data in index register IY and a dis-
placement value d plus 1. This instruction is implemented for the Rabbit and is not available for
the Z180.
•
LD (IY+d),n:
Loads the 8-bit constant n into the memory location whose address is the
sum of the data in index register IY and a displacement value d.
•
LD (IY+d),r:
Loads the data in register r (any of the registers A, B, C, D, E, H, or L) into
the memory location whose address is the sum of the data in index register IY plus a displace-
ment value d.
LD (IY+d),HL
LD (IY+d),n
LD (IY+d),r
Opcode Instruction Clocks Operation
FD F4 d LD (IY+d),HL 13 (2,2,2,1,3,3) (IY + d) = L;
(IY + d + 1) = H
FD 36 d n LD (IY+d),n 11 (2,2,2,2,3) (IY + d) = n
——
FD 77 d
FD 70 d
FD 71 d
FD 72 d
FD 73 d
FD 74 d
FD 75 d
LD (IY+d),r
LD (IY+d),A
LD (IY+d),B
LD (IY+d),C
LD (IY+d),D
LD (IY+d),E
LD (IY+d),H
LD (IY+d),L
10 (2,2,2,1,3)
10 (2,2,2,1,3)
10 (2,2,2,1,3)
10 (2,2,2,1,3)
10 (2,2,2,1,3)
10 (2,2,2,1,3)
10 (2,2,2,1,3)
10 (2,2,2,1,3)
(IY + d) = r
(IY + d) = A
(IY + d) = B
(IY + d) = C
(IY + d) = D
(IY + d) = E
(IY + d) = H
(IY + d) = L
Flags ALTD I/O
S Z L/V C F R SP S D
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