mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-10-11 05:53:23 -05:00
Abdessamad Derraz
e42d0815c1
Thirty profiles from the ES-DE batch, each source-verified by the session that wrote it and passing the schema and semantic checks. Five declare no files at all and say why in notes referenced to the code: NGP.emu, openbor, Plastic, Swan.emu and XeniOS. Twenty-eight files come with them, every one declared by the profile that needs it and matching the hash it declares, with no duplicate of anything already held: the NetherSX2 Turnip Classic assets, the Speccy machine ROMs, the Virtual Boy homebrew the app bundles, Snes9x EX+'s bundled game, and sixtyforce's Overrides.plist, which carries a size and no hash because the binary never checks one. supermodel gains the four data files it reads from its install tree, hakux marks its controller map unsourceable now that the asset manager is known to read inside the package, and nethersx2 sheds the two core aliases that belong to the Turnip profiles.
77 lines
4.1 KiB
YAML
77 lines
4.1 KiB
YAML
emulator: "NGP.emu"
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type: standalone
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core_classification: community_fork
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source: "https://github.com/Rakashazi/emu-ex-plus-alpha"
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upstream: "https://mednafen.github.io/"
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profiled_date: "2026-08-12"
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source_commit: "1c12fac5ce49badaadff2e2f210dcc30b89f4943"
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core_version: "1.5.85"
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display_name: "SNK - Neo Geo Pocket / Color (NGP.emu)"
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mode: standalone
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cores:
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- "ngp-emu"
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- "NGP.emu"
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- "NGP-EMU"
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systems:
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- snk-ngp
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- snk-ngpc
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notes: |
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Member of the EX Emulator series by Robert Broglia, which targets Android and
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Linux (README.md:1,3-4,12-13) and keeps iOS and Pandora build shortcuts in the
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tree (NGP.emu/ios.mk, NGP.emu/pandora.mk). Published as com.explusalpha.NgpEmu
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(NGP.emu/metadata/conf.mk:2,4,6,7) and reached by ES-DE through its NGP-EMU
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find rule, which only the Android rule set carries. Mednafen's Neo Geo Pocket
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module, itself descended from NeoPop, is vendored under NGP.emu/src/ngp
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(NGP.emu/metadata/conf.mk:8, NGP.emu/src/main/AppMeta.cc:27) on the 1.32 line
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(EmuFramework/include/shared/mednafen/mednafen-config.h:167) and driven by the
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app's own video, audio, input and save layers. Three files differ from the
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Mednafen 1.32.1 release, all of it frontend plumbing: the pixel format and
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sound rate hooks, the input latch and the flash file I/O move to the app
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(NGP.emu/src/main/Main.cc:84,102,118-131, NGP.emu/src/main/system.ccm:87,93).
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The TLCS-900h disassembler is left out of the build
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(NGP.emu/src/CMakeLists.txt:6-32). Content is read from .ngp, .ngc, .npc and
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.ngpc files (NGP.emu/metadata/conf.mk:5, NGP.emu/src/main/AppMeta.cc:31-34,
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NGP.emu/src/ngp/neopop.cpp:336-337); an archive is opened by the framework,
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which keeps the first entry passing that same filter
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(EmuFramework/src/EmuSystem.cc:392-412).
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The content image is the only one the app loads. It is read into a 4 MiB
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buffer, hashed for the save file names and handed to the module, which refuses
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an image over 8 MiB (NGP.emu/src/main/Main.cc:80-85,
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EmuFramework/src/shared/mednafen-emuex/MDFNUtils.hh:133-146,
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NGP.emu/src/ngp/neopop.cpp:183-193). The BIOS is built in memory rather than
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read: bios_install fills a 64 KiB array with the 27 system call vectors, writes
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opcode 0x1F at each target, copies an 0x800 byte system font held in the binary
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to 0x8DCF and closes the image with a RETI and an infinite loop
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(NGP.emu/src/ngp/bios.cpp:29,50-180,182-239, NGP.emu/src/ngp/neopop.cpp:211).
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That opcode is bound to the HLE handler in the interpreter decode table, and
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the handler answers only from the 0xFF0000 region
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(NGP.emu/src/ngp/TLCS-900h/TLCS900h_interpret.cpp:921-926,
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NGP.emu/src/ngp/biosHLE.cpp:43-47). The same array is what the memory map
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returns for the BIOS region and where the font routine reads its glyphs
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(NGP.emu/src/ngp/mem.cpp:121, NGP.emu/src/ngp/biosHLE.cpp:221). The NGP
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Language menu item feeds the ngp.language setting, written to RAM at boot
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rather than selecting a file (NGP.emu/src/main/EmuMenuViews.cc:31-40,
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NGP.emu/src/main/options.cc:82-83, NGP.emu/src/ngp/mem.cpp:620,
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NGP.emu/src/ngp/neopop.cpp:286-299).
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No firmware path exists by construction: the app answers Mednafen's file name
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request for save states, saves and save backups only, and any other kind ends
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in unreachable() (NGP.emu/src/main/options.cc:96-106). Cheat loading and IPS
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patching are compiled in from the shared Mednafen sources and called from
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nowhere (EmuFramework/src/shared/mednafen/mempatcher.cpp:251-254,
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EmuFramework/src/shared/mednafen/file.cpp:38-53). Per content the app writes
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and reads back a .ngf image holding the cartridge flash, plus save states and
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NgpEmu.config (NGP.emu/src/main/Main.cc:53-73,118-131,
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NGP.emu/src/main/system.ccm:76, NGP.emu/src/main/AppMeta.cc:28). ui.png,
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gpOverlay.png and the shader sources are drawn from the application bundle
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(EmuFramework/include/emuframework/AssetManager.hh:61-66,
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EmuFramework/src/AssetManager.cc:58-65,
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EmuFramework/src/VideoImageEffect.cc:163-173). The app declares no bundled
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content, the framework definition defaulting to an empty span
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(EmuFramework/src/AppMeta.cc:40,
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EmuFramework/include/emuframework/AppMeta.hh:66-68).
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files: []
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