This patch changes scroll data loading. Instead of using one byte for each scroll, this patch encodes 4 screens of scroll data into one byte, saving 75% on scroll data.
Scroll PLMs or door ASM are not affected.

For example, the vanilla landing site scroll data is:
00 00 02 02 02 02 02 02 02 00 00 02 02 02 02 02 02 02 01 00 02 02 02 02 02 02 02 00 00 02 02 02 02 02 02 02 01 01 01 01 01 01 01 01 01

Using this patch, it's:
0A AA 82 AA A4 AA A8 2A AA 55 55 40

Supported by SMILE RF!