Changes
/* Memory Mapped I/O Ports */
| 4100h || 100h || N || R/W || || Sprite 1 image data
|-
| ... |colspan="5"| etc... || Sprites 2... || ... || ... || ...14 image data
|-
| 4F00h || 100h || N || R/W || || Sprite 15 image data
|-
| 5000h colspan="6"|| || || || || (Block unused)
|-
| 6000h || 2 || N || R/W || X0 || Sprite 0 X position
