tsugaru - RetroBIOS

Type	standalone
Source	https://github.com/captainys/TOWNSEMU
Version	unknown
Profiled	2026-03-26
Cores	tsugaru
Systems	fmtowns

Technical notes

FM Towns / Marty emulator by CaptainYS. Takes a ROM directory as first argument. ROM format compatible with UNZ emulator. Free compatible ROMs available at ysflight.com/FM/towns/FreeTOWNS/. FMT_ALL.ROM is an alternative combined format that bundles all individual ROM files.

11 files | 4 required, 7 optional | 11 in repo, 0 missing | 1 with HLE fallback

FMT_SYS.ROM required in repo
system ROM

• Size: 256.0 KB
• Validation: size
• Source: src/towns/memory/physmem.cpp:392, src/towns/memory/physmem.cpp:503-507
• Platforms: batocera, retrobat

FMT_DOS.ROM required in repo
DOS ROM

• Size: 512.0 KB
• Validation: size
• Source: src/towns/memory/physmem.cpp:395, src/towns/memory/physmem.cpp:508-512
• Platforms: batocera, retrobat

FMT_FNT.ROM required in repo
font ROM

• Size: 256.0 KB
• Validation: size
• Source: src/towns/memory/physmem.cpp:398, src/towns/memory/physmem.cpp:513-517
• Platforms: batocera, retrobat

FMT_F20.ROM optional in repo HLE fallback
20-dot font ROM, filled with 0xFF if missing

• Size: 512.0 KB
• Validation: size
• Source: src/towns/memory/physmem.cpp:401, src/towns/memory/physmem.cpp:518-527
• Platforms: batocera, retrobat

FMT_DIC.ROM required in repo
dictionary ROM

• Size: 512.0 KB
• Validation: size
• Source: src/towns/memory/physmem.cpp:404, src/towns/memory/physmem.cpp:528-532
• Platforms: batocera, retrobat

MYTOWNS.ROM optional in repo
serial ROM for machine identity, uses defaults if absent

• Size: min 32 B
• Source: src/towns/memory/physmem.cpp:407, src/towns/memory/physmem.cpp:533-539

FMT_ALL.ROM optional in repo
combined ROM file, alternative to individual ROM files

• Source: src/towns/memory/physmem.cpp:420-500

MAR_EX0.ROM optional in repo
Marty extra ROM 0, all 4 MAR_EX ROMs needed for Marty mode

• Size: 512.0 KB
• Validation: size
• Source: src/towns/memory/physmem.cpp:410, src/towns/memory/physmem.cpp:541-564

MAR_EX1.ROM optional in repo
Marty extra ROM 1

• Size: 512.0 KB
• Validation: size
• Source: src/towns/memory/physmem.cpp:412, src/towns/memory/physmem.cpp:541-564

MAR_EX2.ROM optional in repo
Marty extra ROM 2

• Size: 512.0 KB
• Validation: size
• Source: src/towns/memory/physmem.cpp:414, src/towns/memory/physmem.cpp:541-564

MAR_EX3.ROM optional in repo
Marty extra ROM 3

• Size: 512.0 KB
• Validation: size
• Source: src/towns/memory/physmem.cpp:416, src/towns/memory/physmem.cpp:541-564

Generated on 2026-08-23T16:12:06Z