RX - RC, RNC, RP, RM, RZ, RNZ, RPE, RPO

 

Opcode	Operand	Description
Rx	None	Call conditionally

 

 

—  The program sequence is transferred from the subroutine to the calling program based on the specified flag of the PSW.

—  The two bytes from the top of the stack are copied into the program counter, and program execution begins at the new address.

—  Example: RZ.

 

 

 

 

Opcode	Description	Status Flags
RC	Return if Carry	CY = 1
RNC	Return if No Carry	CY = 0
RP	Return if Positive	S = 0
RM	Return if Minus	S = 1
RZ	Return if Zero	Z = 1
RNZ	Return if No Zero	Z = 0
RPE	Return if Parity Even	P = 1
RPO	Return if Parity Odd	P = 0