mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-04-13 12:22:33 -05:00
ebc8e4413f
freeintv_ts_overlay (same BIOS as FreeIntv), bnes (NES, no BIOS), clownmdemu (Mega Drive, open-source MCD boot ROM embedded), m2000 (Philips P2000T, all embedded), mesen (NES, FDS + StudyBox BIOS), race (NGP, HLE with disabled BIOS loader), vemulator (VMU, HLE only), gw (Game & Watch, Lua simulator), pd777 (Cassette Vision, no BIOS), play (PS2, full HLE, LoadBIOS commented out) 115 total profiles.
61 lines
2.4 KiB
YAML
61 lines
2.4 KiB
YAML
# Play! emulator BIOS profile
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# Generated from source analysis of https://github.com/jpd002/Play-
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# Commit analyzed: HEAD as of 2026-03-17
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emulator: "Play!"
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type: libretro
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core_name: play_libretro
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source: "https://github.com/jpd002/Play-"
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systems: [sony-playstation-2]
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bios_directory: null
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bios_detection: "hle"
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bios_selection: "not_applicable"
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validation:
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method: "none"
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note: >
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Play! is a full HLE (High-Level Emulation) PS2 emulator. It does not load or
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require any real PS2 BIOS dump. The LoadBIOS() function in Ee_SubSystem.cpp
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(which would read ./vfs/rom0/scph10000.bin) is commented out in PS2VM.cpp:ResetVM().
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files: []
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# No BIOS files required.
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# IOP modules (rom0:SIO2MAN, rom0:PADMAN, rom0:MCMAN, rom0:MCSERV, etc.)
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# are all replaced by HLE implementations in Source/iop/IopBios.cpp.
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# The EE kernel/OS is reimplemented in Source/ee/PS2OS.cpp.
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virtual_filesystem:
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# Play! uses a virtual filesystem for memory cards and disc access,
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# but these are runtime directories, not BIOS files.
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mc0: {default: "vfs/mc0", purpose: "Memory card slot 0 (save data)"}
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mc1: {default: "vfs/mc1", purpose: "Memory card slot 1 (save data)"}
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host: {default: "vfs/host", purpose: "Host filesystem access"}
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cdrom0: {default: null, purpose: "Disc image (set per-game)"}
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memory_layout:
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EE_RAM: {size: "32 MB (0x02000000)"}
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EE_BIOS: {size: "4 MB (0x00400000)", note: "Allocated but unused, HLE replaces real BIOS"}
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IOP_RAM: {size: "2 MB (0x00200000)"}
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SPU_RAM: {size: "2 MB (0x00200000)"}
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notes: |
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Play! does not require any PS2 BIOS files. Unlike PCSX2, it uses High-Level
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Emulation to reimplement the PS2 kernel, IOP BIOS modules, and system services
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entirely in C++.
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Key HLE components:
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- EE kernel: Source/ee/PS2OS.cpp (handles BootFromCDROM, BootFromFile, syscalls)
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- IOP BIOS: Source/iop/IopBios.cpp (HLE modules for rom0:PADMAN, MCMAN, MCSERV, etc.)
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- No rom0/rom1/erom files are loaded at runtime
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The legacy LoadBIOS() function in Source/ee/Ee_SubSystem.cpp references
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"./vfs/rom0/scph10000.bin" but this call is commented out in PS2VM::ResetVM()
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and has no effect on emulation.
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mc2_ings.ico is not referenced anywhere in Play! source code. That file is
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specific to PCSX2's memory card icon handling, not Play!.
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The libretro core supports: .elf, .iso, .cso, .isz, .bin disc images.
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Extensions handled in main_libretro.cpp:retro_get_system_info().
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