Rabbit 2000 - LD IX,Mn

56 Rabbit 2000/3000 Microprocessor
Description
• LD IX,HL: Loads the index register IX with the data in word register HL. This instruction is
implemented for the Rabbit and is not available for the Z180
• LD IX,mn: Loads the index register IX with the 16-bit constant mn.
• LD IY,HL: Loads the index register IY with the data in word register HL. This instruction is
implemented for the Rabbit and is not available for the Z180
• LD IX,mn: Loads the index register IY with the 16-bit constant mn.
Description
Loads the low order byte of index register IY with the data at the address mn and loads the high order byte of
IY with the data at the address mn+1.
LD IX,HL
LD IX,mn
LD IY,HL
LD IY,mn
Opcode Instruction Clocks Operation
DD 7D LD IX,HL 4 (2,2) IX = HL
DD 21 nm LD IX,mn 8 (2,2,2,2) IX = mn
FD 7D LD IY,HL 4 (2,2) IY = HL
FD 21 nm LD IY,mn 8 (2,2,2,2) IY = mn
Flags ALTD I/O
S Z L/V C F R SP S D
- - - -
LD IY,(mn)
Opcode Instruction Clocks Operation
FD 2A nm LD IY,(mn) 13* IY
(low)
=(mn); IY
(high)
=(mn +1)
*Clocking: 13 (2,2,2,2,1,2,2)
Flags ALTD I/O
S Z L/V C F R SP S D
- - - - •