Manual

High-Speed Microcontroller User’s Guide
Rev: 062210 68 of 176
5.6.4 Four-Cycle Instructions
All four-cycle instructions require more time than the associated number of bytes. These are all program
branching instructions that can move program control to a new location. The four-cycle instructions use
either 1 or 3 bytes as shown in the following examples. Figure 5-6
shows the timing of both four-cycle
instructions.
RET 22h
CJNE A, #data, addr B4h
d7-d0
a7-a0
5.6.5 Five-Cycle Instructions
There are only two five-cycle instructions in the high-speed microcontroller. They are the multiply
(MUL) and divide (DIV). These are shown below. Figure 5-7
shows the timing of five-cycle instructions.
MUL A, B A4h
DIV A, B 84h
Note that the five-cycle instructions require only 1 byte. They need 5 cycles to accomplish the math
function.