Nintendo DMG-01 - Game Boy Console Manual page 72

3.3.1. 8-Bit Loads
10. LD (HLD),A
Description: Same as: LDD (HL),A
11. LD (HL-),A
Description: Same as: LDD (HL),A
12. LDD (HL),A
Description:
Put A into memory address HL. Decrement HL.
Same as: LD (HL),A - DEC HL
Opcodes:
Instruction
LD
LD
LDD
Page 72
Parameters
(HLD),A
(HL-),A
(HL),A
Game Boy
Opcode Cycles
32 8
32 8
32 8
TM
CPU Manual
V 1.01