Both of these have quantities that further specify the instruction. Instruction flow indicates which adjacent chip will be evaluated. An instruction block will have a green arrow pointing to the next block in the program flow. In conditionals, there is a red arrow that the program flow will take if the conditions are met. All instructions must lead to another instruction block or off the program grid.
Programs start in the top left corner of the program area.
Processing starting in the first top left corner block and then will follows the instruction flow. Only one instruction at a time is processed and once a chip is processed, the process follows to an adjacent chip pointed to by the current chip's instruction flow. When the process is directed off the grid, the process restarts at the top left corner. Directing the process off the chip table is the only way to restart the process. The program flow does not wait for a command to complete execution before continuing to the next instruction.