OR
From GbdevWiki
This is an article about the GB-Z80 CPU.
Opcodes:
Arithmetic and logical: ADD - ADD (16-bit) including LD HL,SP+nn - ADC - AND - CP - CPL - DAA - DEC - DEC and INC (16-bit) - INC - SBC - SUB - OR - XOR
Conditional: CALL - JP - JR - RET
Load: LD (8-bit) - LD (16-bit)
Extended Set: BIT - RES - RL - RLC - RR - RRC - SET - SLA - SRA - SRL - SWAP
A logical OR operation is performed between the byte specified by the operand and the byte contained in the Accumulator; the result is stored in the Accumulator.
Instructions
OR B - $B0 - 1 Machine Cycle OR C - $B1 - 1 Machine Cycle OR D - $B2 - 1 Machine Cycle OR E - $B3 - 1 Machine Cycle OR H - $B4 - 1 Machine Cycle OR L - $B5 - 1 Machine Cycle OR (HL) - $B6 - 2 Machine Cycles OR A - $B7 - 1 Machine Cycle OR $NN - $F6 - 2 Machine Cycles
Flags
Z: 1 if result is zero; 0 otherwise N: 0 H: 0 C: 0