Copper lists can consist of the following instructions:

(2 word) waits until video beam counter is greater or equal the argument During WAIT the memory bus will not be accessed, freeing it for different tasks. The bus is accessed at uneven memory cycles.

• VP vertical position 0,…,255: since there are 262 beam positions in NTSC, 0,…,6 refer to the last 7 lines before vertical blanking
• HP horizontal position 0,…,112: 4 or 8 lines are aggregated
• bfd blitter finished disable bit: if 0 the Copper will wait until Blitter has set blitter finished flag
• VE vertical compare enable: for each 0, the comparison with the according bit in VP is always true
• HE horizontal compare enable: for each 0, the comparison with the according bit in HP is always true

(2 word) moves data word into secified data register

• DA: the destination register's address
• data: one word of data to be written to the destination register

(2 word) skip next instruction if video beam counter is greater or equal the argument

(see WAIT for reference)