Instruction with 4 T-States

ADC register
ADD register
ANA register
CMA (COMPLEMENT ACCUMULATOR)
CMC (COMPLEMENT CARRY)
CMP register (COMPARE WITH ACCUMULATOR)
DAA (DECIMAL ADJUST ACCUMULATOR)
DCR register
DI (DISABLE INTERRUPT)
EI (ENABLE INTERRUPT)
INR register
MOV registerD, registerS
NOP (NO OPERATION)
ORA register
RAL (ROTATE ACCUMULATOR LEFT THROUGH CARRY)
RAR (ROTATE ACCUMULATOR RIGHT THROUGH CARRY)
RLC (ROTATE ACCUMULATOR LEFT)
RRC (ROTATE ACCUMULATOR RIGHT)
RIM (READ INTERRUPT MASK)
SBB register
SIM
STC (SET CARRY)
SUB register
XCHG (EXCHANGE H AND L WITH D AND E)
XRA register