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0. Replacing the font





$1800 = VRAM font.



Unfortunately there's only ~64+ tiles and it's compressed.



; ------------------------------------------------------



; RST 08H = Set VRAM address



[000008] 0008 7B          LD A,E           AF=8902 BC=0010 DE=7F00 HL=C900 SP=CAE6 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=0C000 [ROM]

[000009] 0009 D3 BF       OUT (BFh),A      AF=0002 BC=0010 DE=7F00 HL=C900 SP=CAE6 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=0C000 [ROM]

[00000B] 000b 7A          LD A,D           AF=0002 BC=0010 DE=7F00 HL=C900 SP=CAE6 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=0C000 [ROM]

[00000C] 000c D3 BF       OUT (BFh),A      AF=7F02 BC=0010 DE=7F00 HL=C900 SP=CAE6 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=0C000 [ROM]

[00000E] 000e C9          RET              AF=7F02 BC=0010 DE=7F00 HL=C900 SP=CAE6 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=0C000 [ROM]



; ------------------------------------------------------



; Read control byte



[0004C0] 04c0 7E          LD A,(HL)        AF=C100 BC=0400 DE=4000 HL=A4C1 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004C1] 04c1 23          INC HL           AF=0F00 BC=0400 DE=4000 HL=A4C1 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]



; $00 = Abort



[0004C2] 04c2 B7          OR A             AF=0F00 BC=0400 DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004C3] 04c3 C8          RET Z            AF=0F0C BC=0400 DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]



; Run length



[0004C4] 04c4 4F          LD C,A           AF=0F0C BC=0400 DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004C5] 04c5 E6 7F       AND 7Fh          AF=0F0C BC=040F DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004C7] 04c7 47          LD B,A           AF=0F1C BC=040F DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]



; Raw flag



[0004C8] 04c8 79          LD A,C           AF=0F1C BC=0F0F DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004C9] 04c9 E6 80       AND 80h          AF=0F1C BC=0F0F DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]



; Write Raw/RLE byte



[0004CB] 04cb F3          DI               AF=0054 BC=0F0F DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004CC] 04cc CF          RST 08           AF=0054 BC=0F0F DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004CD] 04cd 7E          LD A,(HL)        AF=4054 BC=0F0F DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004CE] 04ce D3 BE       OUT (BEh),A      AF=0054 BC=0F0F DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004D0] 04d0 FB          EI               AF=0054 BC=0F0F DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]



; Bump Raw pointer only



[0004D1] 04d1 CA 4D 05    JP Z,04D5h

[0004D4] 04d4 23          INC HL



; Alignment of 4



[0004D5] 04d5 13          INC DE           AF=0054 BC=0F0F DE=4000 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004D6] 04d6 13          INC DE           AF=0054 BC=0F0F DE=4001 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004D7] 04d7 13          INC DE           AF=0054 BC=0F0F DE=4002 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004D8] 04d8 13          INC DE           AF=0054 BC=0F0F DE=4003 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]



; Loop till run is done



[0004D9] 04d9 10 F0       DJNZ 04CBh       AF=0054 BC=0F0F DE=4004 HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]



; Bump pointer for completion of RLE run



[0004DB] 04db C2 C0 04    JP NZ,04C0h      AF=0054 BC=000F DE=403C HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004DE] 04de 23          INC HL           AF=0054 BC=000F DE=403C HL=A4C2 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004DF] 04df C3 C0 04    JP 04C0h         AF=0054 BC=000F DE=403C HL=A4C3 SP=CAF2 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]



; ------------------------------------------------------



; 4 color planes



[0004B3] 04b3 06 04       LD B,04h         AF=C100 BC=0000 DE=4000 HL=A4C1 SP=CAF8 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]



[0004B5] 04b5 C5          PUSH BC          AF=C100 BC=0400 DE=4000 HL=A4C1 SP=CAF8 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]



; Decode each color plane individually



[0004B6] 04b6 D5          PUSH DE          AF=C100 BC=0400 DE=4000 HL=A4C1 SP=CAF6 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004B7] 04b7 CD C0 04    CALL 04C0h       AF=C100 BC=0400 DE=4000 HL=A4C1 SP=CAF4 IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[0004BA] 04ba D1          POP DE           AF=0044 BC=0028 DE=5180 HL=A7F7 SP=CAF4 IX=C880 IY=C800      P0=00000 P1=04000 P2=44000 [ROM]

[0004BB] 04bb 13          INC DE           AF=0044 BC=0028 DE=4000 HL=A7F7 SP=CAF6 IX=C880 IY=C800      P0=00000 P1=04000 P2=44000 [ROM]



[0004BC] 04bc C1          POP BC           AF=0044 BC=0028 DE=4001 HL=A7F7 SP=CAF6 IX=C880 IY=C800      P0=00000 P1=04000 P2=44000 [ROM]

[0004BD] 04bd 10 F6       DJNZ 04B5h       AF=0044 BC=0400 DE=4001 HL=A7F7 SP=CAF8 IX=C880 IY=C800      P0=00000 P1=04000 P2=44000 [ROM]



[0004BF] 04bf C9          RET              AF=0044 BC=0000 DE=4004 HL=AF58 SP=CAF8 IX=C880 IY=C800      P0=00000 P1=04000 P2=44000 [ROM]



; ------------------------------------------------------



; Write to $0000 VRAM (backdrop)



[003EB2] 3eb2 11 00 40    LD DE,4000h      AF=C100 BC=0000 DE=C258 HL=A4C1 SP=CAFA IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]

[003EB5] 3eb5 CD B3 04    CALL 04B3h       AF=C100 BC=0000 DE=4000 HL=A4C1 SP=CAFA IX=C880 IY=C800 V    P0=00000 P1=04000 P2=44000 [ROM]



; _____________________________________________________________



[0045A1] 45a1 CD 6B 3E    CALL 3E6Bh       AF=0844 BC=0000 DE=0001 HL=2009 SP=CAFC IX=B8AF IY=C400 V    P0=00000 P1=04000 P2=70000 [ROM]



; Initial intro sequence



; Font bank



[0045A4] 45a4 21 FF FF    LD HL,FFFFh      AF=0044 BC=0000 DE=D601 HL=9709 SP=CAFC IX=B8AF IY=C400 V    P0=00000 P1=04000 P2=3C000 [ROM]

[0045A7] 45a7 36 10       LD (HL),10h      AF=0044 BC=0000 DE=D601 HL=FFFF SP=CAFC IX=B8AF IY=C400 V    P0=00000 P1=04000 P2=3C000 [ROM]



; Narrative font ($0C0-0FF)

; $43AD8-43EBD ($3E5)



[0045A9] 45a9 21 D8 BA    LD HL,BAD8h      AF=0044 BC=0000 DE=D601 HL=FFFF SP=CAFC IX=B8AF IY=C400 V    P0=00000 P1=04000 P2=40000 [ROM]

[0045AC] 45ac 11 00 58    LD DE,5800h      AF=0044 BC=0000 DE=D601 HL=BAD8 SP=CAFC IX=B8AF IY=C400 V    P0=00000 P1=04000 P2=40000 [ROM]

[0045AF] 45af CD B3 04    CALL 04B3h       AF=0044 BC=0000 DE=5800 HL=BAD8 SP=CAFC IX=B8AF IY=C400 V    P0=00000 P1=04000 P2=40000 [ROM]



; Extra tiles ($1F0-1FB)

; $43EBE-43F5D ($A0)



[0045B2] 45b2 21 BE BE    LD HL,BEBEh      AF=0044 BC=0000 DE=5804 HL=BEBE SP=CAFC IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]

[0045B5] 45b5 11 00 7E    LD DE,7E00h      AF=0044 BC=0000 DE=5804 HL=BEBE SP=CAFC IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]

[0045B8] 45b8 CD B3 04    CALL 04B3h       AF=0044 BC=0000 DE=7E00 HL=BEBE SP=CAFC IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]



; Kanji tiles ($B8-BF)

; $43F5E-43FE3 ($86)



[0045BB] 45bb 21 5E BF    LD HL,BF5Eh      AF=0044 BC=0000 DE=7E04 HL=BF5E SP=CAFC IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]

[0045BE] 45be 11 00 57    LD DE,5700h      AF=0044 BC=0000 DE=7E04 HL=BF5E SP=CAFC IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]

[0045C1] 45c1 CD B3 04    CALL 04B3h       AF=0044 BC=0000 DE=5700 HL=BF5E SP=CAFC IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]



; Total: $50B



[0045C4] 45c4 AF          XOR A            AF=0044 BC=0000 DE=5704 HL=BFE4 SP=CAFC IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]

[0045C5] 45c5 32 04 C3    LD (C304h),A     AF=0044 BC=0000 DE=5704 HL=BFE4 SP=CAFC IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]

[0045C8] 45c8 32 00 C3    LD (C300h),A     AF=0044 BC=0000 DE=5704 HL=BFE4 SP=CAFC IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]



; -----------------------------------------------------



; Code called during in-game play, not initial intro sequence



[003DDE] 3dde 21 FF FF    LD HL,FFFFh      AF=0044 BC=0000 DE=D601 HL=9709 SP=CAFE IX=C880 IY=C800 V    P0=00000 P1=04000 P2=3C000 [ROM]

[003DE1] 3de1 36 10       LD (HL),10h      AF=0044 BC=0000 DE=D601 HL=FFFF SP=CAFE IX=C880 IY=C800 V    P0=00000 P1=04000 P2=3C000 [ROM]



[003DE3] 3de3 21 D8 BA    LD HL,BAD8h      AF=0044 BC=0000 DE=D601 HL=FFFF SP=CAFE IX=C880 IY=C800 V    P0=00000 P1=04000 P2=40000 [ROM]

[003DE6] 3de6 11 00 58    LD DE,5800h      AF=0044 BC=0000 DE=D601 HL=BAD8 SP=CAFE IX=C880 IY=C800 V    P0=00000 P1=04000 P2=40000 [ROM]

[003DE9] 3de9 CD B3 04    CALL 04B3h       AF=0044 BC=0000 DE=5800 HL=BAD8 SP=CAFE IX=C880 IY=C800 V    P0=00000 P1=04000 P2=40000 [ROM]



[003DEC] 3dec 21 BE BE    LD HL,BEBEh      AF=0044 BC=0000 DE=5804 HL=BEBE SP=CAFE IX=C880 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]

[003DEF] 3def 11 00 7E    LD DE,7E00h      AF=0044 BC=0000 DE=5804 HL=BEBE SP=CAFE IX=C880 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]

[003DF2] 3df2 CD B3 04    CALL 04B3h       AF=0044 BC=0000 DE=7E00 HL=BEBE SP=CAFE IX=C880 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]



[003DF5] 3df5 AF          XOR A            AF=0044 BC=0000 DE=7E04 HL=BF5E SP=CAFE IX=C880 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]

[003DF6] 3df6 32 04 C3    LD (C304h),A     AF=0044 BC=0000 DE=7E04 HL=BF5E SP=CAFE IX=C880 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]

[003DF9] 3df9 32 00 C3    LD (C300h),A     AF=0044 BC=0000 DE=7E04 HL=BF5E SP=CAFE IX=C880 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]

[003DFC] 3dfc 32 00 C8    LD (C800h),A     AF=0044 BC=0000 DE=7E04 HL=BF5E SP=CAFE IX=C880 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]

[003DFF] 3dff 32 E9 C2    LD (C2E9h),A     AF=0044 BC=0000 DE=7E04 HL=BF5E SP=CAFE IX=C880 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]



; -----------------------------------------------------------



; cutscenes



[0048DA] 48da 21 FF FF    LD HL,FFFFh      AF=0044 BC=001E DE=79C6 HL=2009 SP=CAFA IX=B8AF IY=C400 V    P0=00000 P1=04000 P2=0C000 [ROM]

[0048DD] 48dd 36 10       LD (HL),10h      AF=0044 BC=001E DE=79C6 HL=FFFF SP=CAFA IX=B8AF IY=C400 V    P0=00000 P1=04000 P2=0C000 [ROM]



[0048DF] 48df 21 D8 BA    LD HL,BAD8h      AF=0044 BC=001E DE=79C6 HL=FFFF SP=CAFA IX=B8AF IY=C400 V    P0=00000 P1=04000 P2=40000 [ROM]

[0048E2] 48e2 11 00 58    LD DE,5800h      AF=0044 BC=001E DE=79C6 HL=BAD8 SP=CAFA IX=B8AF IY=C400 V    P0=00000 P1=04000 P2=40000 [ROM]

[0048E5] 48e5 CD B3 04    CALL 04B3h       AF=0044 BC=001E DE=5800 HL=BAD8 SP=CAFA IX=B8AF IY=C400 V    P0=00000 P1=04000 P2=40000 [ROM]



[0048E8] 48e8 21 BE BE    LD HL,BEBEh      AF=0044 BC=001E DE=5804 HL=BEBE SP=CAFA IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]

[0048EB] 48eb 11 00 7E    LD DE,7E00h      AF=0044 BC=001E DE=5804 HL=BEBE SP=CAFA IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]

[0048EE] 48ee CD B3 04    CALL 04B3h       AF=0044 BC=001E DE=7E00 HL=BEBE SP=CAFA IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]



[0048F1] 48f1 21 FF FF    LD HL,FFFFh      AF=0044 BC=001E DE=7E04 HL=BF5E SP=CAFA IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]

[0048F4] 48f4 36 18       LD (HL),18h      AF=0044 BC=001E DE=7E04 HL=FFFF SP=CAFA IX=B8AF IY=C400      P0=00000 P1=04000 P2=40000 [ROM]



; ------------------------------------------------------------



; load game



[0007C9] 07c9 21 FF FF    LD HL,FFFFh      AF=0042 BC=0000 DE=7800 HL=C202 SP=CAFE IX=FFFF IY=FFFF V    P0=00000 P1=04000 P2=38000 [ROM]

[0007CC] 07cc 36 10       LD (HL),10h      AF=0042 BC=0000 DE=7800 HL=FFFF SP=CAFE IX=FFFF IY=FFFF V    P0=00000 P1=04000 P2=38000 [ROM]



[0007CE] 07ce 21 D8 BA    LD HL,BAD8h      AF=0042 BC=0000 DE=7800 HL=FFFF SP=CAFE IX=FFFF IY=FFFF V    P0=00000 P1=04000 P2=40000 [ROM]

[0007D1] 07d1 11 00 58    LD DE,5800h      AF=0042 BC=0000 DE=7800 HL=BAD8 SP=CAFE IX=FFFF IY=FFFF V    P0=00000 P1=04000 P2=40000 [ROM]

[0007D4] 07d4 CD B3 04    CALL 04B3h       AF=0042 BC=0000 DE=5800 HL=BAD8 SP=CAFE IX=FFFF IY=FFFF V    P0=00000 P1=04000 P2=40000 [ROM]



[0007D7] 07d7 21 BE BE    LD HL,BEBEh      AF=0044 BC=0000 DE=5804 HL=BEBE SP=CAFE IX=FFFF IY=FFFF V    P0=00000 P1=04000 P2=40000 [ROM]

[0007DA] 07da 11 00 7E    LD DE,7E00h      AF=0044 BC=0000 DE=5804 HL=BEBE SP=CAFE IX=FFFF IY=FFFF V    P0=00000 P1=04000 P2=40000 [ROM]

[0007DD] 07dd CD B3 04    CALL 04B3h       AF=0044 BC=0000 DE=7E00 HL=BEBE SP=CAFE IX=FFFF IY=FFFF V    P0=00000 P1=04000 P2=40000 [ROM]



[0007E0] 07e0 CD 44 03    CALL 0344h       AF=0044 BC=0000 DE=7E04 HL=BF5E SP=CAFE IX=FFFF IY=FFFF V    P0=00000 P1=04000 P2=40000 [ROM]



; ------------------------------------------------------------



; dungeons



[0010E3] 10e3 21 FF FF    LD HL,FFFFh      AF=8509 BC=0000 DE=B61C HL=C202 SP=CAFE IX=C880 IY=C800 V    P0=00000 P1=04000 P2=0C000 [ROM]

[0010E6] 10e6 36 10       LD (HL),10h      AF=8509 BC=0000 DE=B61C HL=FFFF SP=CAFE IX=C880 IY=C800 V    P0=00000 P1=04000 P2=0C000 [ROM]



[0010E8] 10e8 21 D8 BA    LD HL,BAD8h      AF=8509 BC=0000 DE=B61C HL=FFFF SP=CAFE IX=C880 IY=C800 V    P0=00000 P1=04000 P2=40000 [ROM]

[0010EB] 10eb 11 00 58    LD DE,5800h      AF=8509 BC=0000 DE=B61C HL=BAD8 SP=CAFE IX=C880 IY=C800 V    P0=00000 P1=04000 P2=40000 [ROM]

[0010EE] 10ee CD B3 04    CALL 04B3h       AF=8509 BC=0000 DE=5800 HL=BAD8 SP=CAFE IX=C880 IY=C800 V    P0=00000 P1=04000 P2=40000 [ROM]



[0010F1] 10f1 21 BE BE    LD HL,BEBEh      AF=0044 BC=0000 DE=5804 HL=BEBE SP=CAFE IX=C880 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]

[0010F4] 10f4 11 00 7E    LD DE,7E00h      AF=0044 BC=0000 DE=5804 HL=BEBE SP=CAFE IX=C880 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]

[0010F7] 10f7 CD B3 04    CALL 04B3h       AF=0044 BC=0000 DE=7E00 HL=BEBE SP=CAFE IX=C880 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]



[0010FA] 10fa 3E 39       LD A,39h         AF=0044 BC=0000 DE=7E04 HL=BF5E SP=CAFE IX=C880 IY=C800 V    P0=00000 P1=04000 P2=40000 [ROM]



; ------------------------------------------------------------



; dungeon pits





[006971] 6971 21 FF FF    LD HL,FFFFh      AF=0044 BC=0000 DE=7D80 HL=D600 SP=CAFA IX=C860 IY=C800 V    P0=00000 P1=04000 P2=18000 [ROM]

[006974] 6974 36 10       LD (HL),10h      AF=0044 BC=0000 DE=7D80 HL=FFFF SP=CAFA IX=C860 IY=C800 V    P0=00000 P1=04000 P2=18000 [ROM]



[006976] 6976 21 BE BE    LD HL,BEBEh      AF=0044 BC=0000 DE=7D80 HL=FFFF SP=CAFA IX=C860 IY=C800 V    P0=00000 P1=04000 P2=40000 [ROM]

[006979] 6979 11 00 7E    LD DE,7E00h      AF=0044 BC=0000 DE=7D80 HL=BEBE SP=CAFA IX=C860 IY=C800 V    P0=00000 P1=04000 P2=40000 [ROM]

[00697C] 697c CD B3 04    CALL 04B3h       AF=0044 BC=0000 DE=7E00 HL=BEBE SP=CAFA IX=C860 IY=C800 V    P0=00000 P1=04000 P2=40000 [ROM]



[00697F] 697f 06 01       LD B,01h         AF=0044 BC=0000 DE=7E04 HL=BF5E SP=CAFA IX=C860 IY=C800      P0=00000 P1=04000 P2=40000 [ROM]



; ____________________________________________________________



VRAM contents (tiles):

$000-0BF = Backdrop

$0C0-0FF = 64 font tiles ($40)

$100-1B3 = Overworld / Battle

$1B4-1BF = Empty space? (12)

$1C0-1EF = NT

$1F0-1F3 = 4 window tiles

$1F4-1F7 = 4 extra tiles (HPME)

$1F8-1F9 = OAM

$1FA-1FB = OAM --> 2 extra tiles (LV)

$1FC-1FF = OAM



We can squeeze an upper/lowercase font if the empty space is valid.



Unfortunately though, $1b4-1bf causes some major interference with dungeon

doors. Rewiring around it causes unstable visual output. Unsightly.



A few unused letters will be canned. Like 'X'.



; -------------------------------------------------------------



For those unfamiliar with SMS/GG OAM, please note:



64 sprites. $100 table in VRAM.

- $40 bytes for 'y'

- $40 dummy bytes (Phantasy Star uses it for two font tiles)

- $80 bytes for 'x' / 'pattern name' pairs