| 1. store_src_rg coords = src.rg | |
| 2. init_lane_masks CondMask = LoopMask = RetMask = true | |
| 3. zero_4_slots_unmasked rgb[0](0..3) = 0 | |
| 4. zero_slot_unmasked $0 = 0 | |
| 5. copy_slot_unmasked rgb[0] = $0 | |
| 6. copy_constant $0 = 0x3F800000 (1.0) | |
| 7. copy_slot_unmasked rgb[1] = $0 | |
| 8. zero_slot_unmasked $0 = 0 | |
| 9. copy_slot_unmasked rgb[2] = $0 | |
| 10. copy_constant $0 = 0x3F800000 (1.0) | |
| 11. copy_slot_unmasked a = $0 | |
| 12. copy_4_slots_unmasked $0..3 = rgb[0](0..3) | |
| 13. copy_4_slots_unmasked [main].result = $0..3 | |
| 14. load_src src.rgba = [main].result |