Copper List
; Example ECS Copper List
move.w $180,COLOR00 ; Set background color
move.w #$0000,COLOR00
move.w $182,COLOR01 ; Set foreground color
move.w #$0F00,COLOR01
wait $2c07,BPLCON0 ; Wait for specific beam position
move.w #$1200,BPLCON0 ; Enable bitplanes
move.l #Screen,BPL1PTH ; Set bitplane pointer
; ECS specific instructions
move.w #$1000,BPLCON3 ; Enable ECS features
move.w #$0011,FMODE ; Set fetch mode
; More Copper instructions...
Amiga ECS Copper Coprocessor:
The Copper in the Enhanced Chip Set (ECS) is an improved version of the OCS Copper. It maintains backward compatibility while introducing new features:
- Increased precision for horizontal beam position comparisons (35ns resolution)
- Support for new ECS registers like BPLCON3 and FMODE
- Ability to modify more registers, including some previously write-protected ones
- Enhanced synchronization capabilities with the video beam
- Still operates independently of the CPU, allowing for complex graphics effects
The ECS Copper is crucial for leveraging the enhanced graphics capabilities of the ECS, enabling more advanced effects and better control over the display.