1. Connection of functional block and components

The functional block diagram connects instructions through connecting lines, which are divided into horizontal and vertical directions. By connecting the output of one instruction to the input of another instruction, program logic is formed between the instructions.

1.1. Serial logic

图1 Serial logic

Function blocks can be connected in logical series. Sometimes, it is necessary to connect the logical flow of a series of instructions through horizontal connection lines. In the above example, the enable output (ENO) of the element "real number addition ADDF" is connected to the enable input of the element "real number multiplication MULF".

1.2. Branch connection

图2 Branch connection

Multiple logics share a conditional logic and are interconnected using vertical connection lines. In the above example, they are single character transfer MOV and single character subtraction DEC, sharing a common comparison condition.