S1 Level Select | Sonic Text Code Generator

The level select text is a raw binary file in most Sonic 1 disassemblies. Instead of a custom generator, it's easier to just write a macro and let you edit it by hand yourself directly in the source.

Open sonic.asm (or sonic1.asm for Hivebrain 2005), go to the LevelMenuText label, and replace the include with the following code, depending on which assembler you use.

Side note: you might already have this is in your disassembly!

AS assembler
LevelMenuText: charset ' ', $FF charset '0','9',$00 charset '$', $0A charset '-', $0B charset '=', $0C charset '>', $0D ;charset '>', $0E ; there are two right arrows in the font for some reason charset 'Y','Z',$0F ; Y and Z come before A-X charset 'A','X',$11 dc.b "GREEN HILL ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" if Revision=0 dc.b "LABYRINTH ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "MARBLE ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "STAR LIGHT ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "SPRING YARD ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" else dc.b "MARBLE ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "SPRING YARD ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "LABYRINTH ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "STAR LIGHT ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" endif dc.b "SCRAP BRAIN ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "FINAL ZONE " dc.b "SPECIAL STAGE " dc.b "SOUND SELECT " even charset

ASM68K assembler
lstxt macro textline i: = 1 len: = strlen(\textline) if len<>24 inform 2, "line length must be exactly 24 characters" endif while (i<=len) char: substr i,i,\textline i: = i+1 if "\char"=' ' dc.b $FF elseif ("\char">='0')&("\char"<='9') dc.b $00+"\char"-'0' elseif "\char"='$' dc.b $0A elseif "\char"='-' dc.b $0B elseif "\char"='=' dc.b $0C elseif "\char"=">" dc.b $0D ;elseif "\char"=">" ; dc.b $0E elseif "\char"='Y' dc.b $0F elseif "\char"='Z' dc.b $10 elseif ("\char">='A')&("\char"<='X') dc.b $11+"\char"-'A' else inform 2, "illegal char \char" endif endw endm LevelMenuText: lstxt "GREEN HILL ZONE STAGE 1" lstxt " STAGE 2" lstxt " STAGE 3" if Revision=0 dc.b "LABYRINTH ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "MARBLE ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "STAR LIGHT ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "SPRING YARD ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" else dc.b "MARBLE ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "SPRING YARD ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "LABYRINTH ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" dc.b "STAR LIGHT ZONE STAGE 1" dc.b " STAGE 2" dc.b " STAGE 3" endif lstxt "SCRAP BRAIN ZONE STAGE 1" lstxt " STAGE 2" lstxt " STAGE 3" lstxt "FINAL ZONE " lstxt "SPECIAL STAGE " lstxt "SOUND SELECT " even