The emulator supports 244 documented KR580VM80A / Intel 8080 opcode encodings. Undocumented slots do not run as compatibility aliases; they stop execution with an error.
**Instruction groups**
• Transfer – MOV, MVI, LXI, LDA, STA, LHLD, SHLD, LDAX, STAX, XCHG, XTHL, SPHL
• Arithmetic – ADD, ADC, SUB, SBB, INR, DCR, INX, DCX, DAD, DAA
• Logic – ANA, ORA, XRA, CMP, CMA, STC, CMC, RLC, RRC, RAL, RAR
• Control – JMP, CALL, RET, conditional forms, RST, PCHL, NOP, HLT, DI, EI
• I/O – IN, OUT
• Stack – PUSH, POP
Press E or the “…” button in the RAM editor to search the opcode table by hexadecimal code or mnemonic.