Z80 Assembly - Instructions

Moving data

• Load: LD
• Stack: PUSH, POP
• Block: LDI, LDD, LDIR, LDDR
• Exchange: EX, EXX

Working with data

• Arithmetic: ADD, SUB, ADC, SBC, INC, DEC, NEG, DAA
• Logical: OR, AND, XOR, CPL, SET, RES, SCF, CCF
• Shift: SLA, SRA, SLL, SRL, RL, RR, RLA, RRA, RLC, RRC, RLCA, RRCA, RLD, RRD
• Testing: CP, BIT, CPI, CPD, CPIR, CPDR

Branching

• Jumps: JP, JR, DJNZ
• Subroutines: CALL, RET

Hardware related

• Interrupts: DI, EI, RETI, RETN, IM, RST
• Ports: IN, OUT, INI, IND, INIR, INDR, OUTI, OUTD, OTIR, OTDR
• Suspend: NOP, HALT
• Undocumented instructions

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