Conditional Jumps and Loop Instructions In 8051 Microcontroller
JC – Jump if CY = 1 JNC – Jump if CY not equal to 1 JZ – Jump if A = 0 JNZ – Jump if A not equal to 0 JB – Jump if bit = 0 JNB – Jump if bit not equal to 0 JBC – Jump if bit = 1 and clear bit