Journey to Silius
Mapper Conversion Patch
FROM Mapper 1 (MMC1) TO Mapper 5 (MMC5)
Converted by Dracula X
RELEASE DATE: 11/28/19
Last Modified: 10/28/2021
Happy Thanksgiving!




PRG Bankswitch Routine is at $C6ED

To switch banks from $C000 - $FFFF, use like so:

LDA bank_number
JSR $C6ED
JMP to any location in $8000-$BFFF




CHR Sprite Bankswitch Routine (Left side of PPU) is at $C70D

To switch sprite pages, use like so:

LDA page_number
JSR $C70D




CHR Background Bankswitch Routine (Right side of PPU) is at $C723

To switch background pages, use like so:

LDA page_number
JSR $C723




Nametable Mapping Routine (one of its uses is mirroring) is at $EBFC

To change mirroring for instance, use like so:

LDA mirroring_number (#$50 for Horizontal, #$44 for Vertical)
JSR $EBFC

Hacks supported:
All

Hacks not supported:
The Terminator
It will still work but the title screen is not working right.

Use Delta Patcher to patch the ROM. Ignore the checksum and then patch the file.

10/28/2021
Changes for this version 1.2.0:
I think all emulators are now supported.

Changes for this version 1.1:
Changed the main mirroring swap to a new default location $EBFC
and moved the MMC5 Setup to a new location at $3FF10 so people can use
that free space at $1EBB0. Forgot to add PRG/CHR swapping with MMC5 equivalents to JSR's.

Credits:
Rockman or RetroRain: for info on how to convert the mapper!
Disch: for his mapper docs and a better MMC5 startup!