mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-10-10 13:33:24 -05:00
Abdessamad Derraz
3cb9e4e558
jaxe pointed at a libretro core-info file, lindbergh-loader at a Batocera generator, oricutron at the ES-DE user guide. None is in the tree each names.
326 lines
17 KiB
YAML
326 lines
17 KiB
YAML
emulator: Lindbergh Loader
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type: standalone
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core_classification: embedded_hle
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source: "https://github.com/lindbergh-loader/lindbergh-loader"
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upstream: "https://github.com/lindbergh-loader/lindbergh-loader"
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source_commit: "0af606d845b70339c335785c0eba68b47b78df3c"
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profiled_date: "2026-08-08"
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core_version: "2.1.4"
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display_name: "Sega - Lindbergh (Lindbergh Loader)"
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cores:
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- lindbergh-loader
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systems:
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- sega-lindbergh
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mode: standalone
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notes: |
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Runs the original Sega Lindbergh game binaries on Linux, built and executed
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as 32-bit x86. The launcher picks the game ELF, exports
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LD_PRELOAD=lindbergh.so and an
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LD_LIBRARY_PATH covering the loader directory, the original directory, the
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game directory and ".:lib:../lib", then system()s the ELF
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(src/lindbergh/lindbergh.c:315-378, 874-929). Platforms invoke it as lindbergh-loader
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(Batocera package and generator, RetroBat, ES-DE find rule LINDBERGH-LOADER).
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The Lindbergh hardware is emulated inside lindbergh.so with no external
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firmware. Hooked open() and fopen() redirect /dev/lbb (baseboard), /dev/i2c/0
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(eeprom), /dev/ttyS0 and /dev/ttyS1 (drive, ride, motion boards and card
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reader), /proc/bus/pci/01/00.0 and /proc/bus/pci/00/1f.0 to /dev/zero and
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answer from code (src/lindbergh/hook.c:43, 530-615, 641-853). The security board is DIP
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switches and test/service lines computed in securityBoard.c:98-140, with no
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keychip dump. eeprom.bin and sram.bin are created on first run and their
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contents synthesised: eepromSettings.c builds every amSysDataRecord section
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from constants and recomputes the CRCs (eeprom.c:33-48, baseBoard.c:60-74,
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eepromSettings.c:24-120). Card_01.crd and Card_02.crd are written from a
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56-byte header held in the binary (cardReader.c:227-247). lindbergh.ini and
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controls.ini are optional; both fall back to compiled-in defaults and can be
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emitted with --create (config.c:510-516, src/lindbergh/sdlInput.c:790-795).
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The one hard external dependency is the NVIDIA Cg runtime. findLibCg() checks
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LIBCG_PATH from the ini, then /app/lib32/libCg2.so, $APP_IMG_ROOT/usr/lib32/
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libCg2.so, ./libCg.so and $LINDBERGH_LOADER_CURRENT_DIR/libCg.so, and exits
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when none is present (src/lindbergh/shaderPatches.c:1028-1108). Cg 3.1 is a separate
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requirement: the game ELFs link libCg.so and libCgGL.so, which upstream
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vendors as libs/Cg-3.1.zip and installs into the runtime library directory
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(scripts/appimage/make-appimage.sh,
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scripts/flatpak/com.github.lindberghloader.yml:181-189, 242-245). Batocera
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copies per-game Cg variants into the ROM directory
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(batocera lindberghGenerator.py:1027-1050).
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Shaders come from the game dump, not from the loader. cacheModedShaderFiles()
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reads ../fs/shader and /data/Shader relative to the ELF, patches the Cg
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source and serves the result back through the fopen, fread and ftell hooks
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(shaderCache.c:474-488, 555-678, src/lindbergh/hook.c:778-808, 1140-1212).
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Boot logos and console fonts were user-supplied until 2.0.1, which added
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built-in copies compiled into lindbergh.so and served from
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resources/logo.h and resources/font.h. The originals are read only when
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DISABLE_BUILTIN_LOGOS or DISABLE_BUILTIN_FONT is set, from the game
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directory (src/lindbergh/hook.c:655-744, 874-926, fread hook at 1159-1181). Batocera
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exposes both switches as ORIGINAL LOGOS and ORIGINAL FONTS.
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Custom cursors and crosshairs load from arbitrary ini paths with no default
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name and no built-in image (crossHair.c:142-186, customCursor.c:26-33).
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files:
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# -- NVIDIA Cg runtime --
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- name: libCg2.so
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system: sega-lindbergh
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required: true
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validation: [signature]
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description: "NVIDIA Cg 2.0.0.12 runtime used to recompile the game shaders"
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source_ref: "src/lindbergh/shaderPatches.c:1028-1108, src/lindbergh/shaderPatches.c:1110-1170"
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note: >-
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Searched at LIBCG_PATH, /app/lib32/libCg2.so, $APP_IMG_ROOT/usr/lib32/
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libCg2.so, then ./libCg.so and $LINDBERGH_LOADER_CURRENT_DIR/libCg.so. The
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loader reads 8 bytes at offset 0x226d84 and requires exactly "2.0.0.12";
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a missing file, a different version string or a failed dlopen of
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cgCreateContext, cgCreateProgram, cgGetProgramString, cgDestroyContext or
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cgDestroyProgram each call exit(EXIT_FAILURE). Upstream vendors the build
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as libs/libCg.so and both installers rename it to libCg2.so so it can sit
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beside the Cg 3.1 library of the same original name that the games link.
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- name: libCgGL.so
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system: sega-lindbergh
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required: true
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description: "NVIDIA Cg 3.1 OpenGL runtime linked by the game binaries"
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source_ref: "src/lindbergh/lindbergh.c:336-378, scripts/flatpak/com.github.lindberghloader.yml:181-189"
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note: >-
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Resolved by the dynamic linker for the game ELF through the
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LD_LIBRARY_PATH the launcher builds, not opened by loader code. Upstream
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takes it from Cg-3.1_April2012_x86.tgz and ships it in libs/Cg-3.1.zip.
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Game dumps generally carry their own copy in the game directory, so the
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Batocera generator only writes one when the file is absent or differs.
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- name: libCg.so
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system: sega-lindbergh
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required: true
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description: "NVIDIA Cg 3.1 runtime linked by the game binaries"
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source_ref: "src/lindbergh/lindbergh.c:336-378, scripts/flatpak/com.github.lindberghloader.yml:181-189"
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note: >-
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Same origin and mechanism as libCgGL.so, and a different build from the
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2.0.0.12 library the shader recompiler loads. Batocera keeps the two Cg
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generations apart as libCg.so.harley and libCg.so.other and copies the
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matching pair into the ROM directory per game, overwriting the dump's own
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copy for the titles where it renders shadows and textures incorrectly.
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# -- Lindbergh system libraries kept out of current distributions --
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- name: libcrypto.so.0.9.7
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system: sega-lindbergh
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required: false
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description: "OpenSSL 0.9.7 crypto library linked by the networked games"
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source_ref: "src/lindbergh/lindbergh.c:336-378, scripts/flatpak/com.github.lindberghloader.yml:244"
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note: >-
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Vendored as libs/libcrypto.so.0.9.7 and installed into the runtime library
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directory by both the AppImage and Flatpak builds. Resolved by the dynamic
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linker for the game ELF.
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- name: libssl.so.0.9.7
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system: sega-lindbergh
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required: false
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description: "OpenSSL 0.9.7 TLS library linked by the networked games"
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source_ref: "src/lindbergh/lindbergh.c:336-378, scripts/flatpak/com.github.lindberghloader.yml:245"
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note: "Vendored as libs/libssl.so.0.9.7, paired with libcrypto.so.0.9.7."
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- name: libopenal.so.0
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system: sega-lindbergh
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required: false
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description: "OpenAL runtime preloaded for Quiz Answer x Answer"
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source_ref: "src/lindbergh/lindbergh.c:22, src/lindbergh/lindbergh.c:315-328, src/lindbergh/lindbergh.c:882-890"
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note: >-
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When the ELF is q2satl_lind the launcher looks the file up through
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findPreloadLibrary and appends it to LD_PRELOAD. Absence prints "You might
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not get sound because libopenal.so.0 was not found" and the game still
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runs. Vendored as libs/libopenal.so.0.
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# -- Lindbergh boot program --
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- name: segaboot
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system: sega-lindbergh
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required: false
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description: "Sega Lindbergh boot and hardware check program, version 2.4"
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source_ref: "src/lindbergh/lindbergh.c:696-698, src/lindbergh/lindbergh.c:892-895, src/lindbergh/hook.c:1625-1632, src/lindbergh/config.h:57-58, src/lindbergh/gameData.c:51-52"
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unsourceable: >-
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Lives at /usr/sbin/segaboot on the board's hard disk, which no dump
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project covers. The /usr partition images that circulate are encrypted
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and no key is public.
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note: >-
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Run as "segaboot -t" under -s or --segaboot. A 32-bit x86 Linux ELF.
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0x38d56318 identifies Segaboot 2.4 and 0xa518b18b the build carrying
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symbols, but neither is a whole-file checksum and neither belongs in a
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hash field: src/lindbergh/hook.c computes them as CRC-32 over 0x4000 bytes starting
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10 bytes into program header index 2, guarded by p_type == PT_LOAD and
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p_flags == 5. Declaring one as crc32 gives verify.py a value it can
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never reproduce. The comparison drives identification only: an unknown
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CRC logs a warning and startup continues. SEGABOOT 0x0027 and
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SEGABOOT_2_6 0x0030 in src/lindbergh/config.h are placeholders, not checksums, and no
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table entry uses them.
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# -- Lindbergh boot assets, replaced by built-in copies since 2.0.1 --
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- name: logo.tga
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system: sega-lindbergh
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required: false
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hle_fallback: true
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has_builtin: true
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description: "Lindbergh boot logo, read from /usr/lib/boot on the original system"
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source_ref: "src/lindbergh/hook.c:655-667, src/lindbergh/hook.c:888-900"
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note: >-
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Read from the game directory only when DISABLE_BUILTIN_LOGOS is set.
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Otherwise the logoLL array in resources/logo.h answers the read.
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- name: logo_red.tga
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system: sega-lindbergh
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required: false
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hle_fallback: true
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has_builtin: true
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description: "Lindbergh Red boot logo, read from /usr/lib/boot on the original system"
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source_ref: "src/lindbergh/hook.c:669-681, src/lindbergh/hook.c:874-886"
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note: >-
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Read from the game directory only when DISABLE_BUILTIN_LOGOS is set.
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Otherwise the logoLLRed array in resources/logo.h answers the read.
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- name: SEGA_KakuGothic-DB-Roman_12.tga
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system: sega-lindbergh
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required: false
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hle_fallback: true
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has_builtin: true
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description: "Sega Kaku Gothic console font texture"
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source_ref: "src/lindbergh/hook.c:718-730, src/lindbergh/hook.c:902-914"
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aliases: ["LucidaConsole_12.tga"]
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note: >-
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Read from the game directory only when DISABLE_BUILTIN_FONT is set.
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The built-in is one shared 128x256 atlas (fontTGA) and one metrics
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table (fontABC) answering all four font paths, so it substitutes for
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the Sega originals rather than reproducing either of them.
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The .abc is the metrics sidecar of the .tga atlas, named for the GDI
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ABC width triple. Header of 28 bytes: renderOffset, renderHeight,
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atlas width, atlas height, lineHeight, then firstSymbol and lastSymbol
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as uint16 and a uint32 symbol count; then one 24-byte record per glyph,
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four float32 giving the normalised UV rectangle followed by leftMargin,
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width, rightMargin and a pad as uint16. Field names come from
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JayFoxRox/lindbergh-tools Utilities/src/font.c, written against a real
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LucidaConsole_12.abc rather than against this substitute.
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The built-in itself is Liberation Mono Bold rasterised at 18 px: 95 of
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its 96 glyphs are byte-identical to that rendering, cropped at the UV
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rectangles its own metrics declare. Liberation carries a 2010 and 2012
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digitisation copyright, so it cannot be a 2005 Sega asset.
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Otherwise the fontTGA array in resources/font.h answers the read.
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- name: SEGA_KakuGothic-DB-Roman_12.abc
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system: sega-lindbergh
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required: false
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hle_fallback: true
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has_builtin: true
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description: "Sega Kaku Gothic console font metrics"
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source_ref: "src/lindbergh/hook.c:732-744, src/lindbergh/hook.c:916-928"
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aliases: ["LucidaConsole_12.abc"]
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note: >-
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Read from the game directory only when DISABLE_BUILTIN_FONT is set.
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The built-in is one shared 128x256 atlas (fontTGA) and one metrics
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table (fontABC) answering all four font paths, so it substitutes for
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the Sega originals rather than reproducing either of them.
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The .abc is the metrics sidecar of the .tga atlas, named for the GDI
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ABC width triple. Header of 28 bytes: renderOffset, renderHeight,
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atlas width, atlas height, lineHeight, then firstSymbol and lastSymbol
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as uint16 and a uint32 symbol count; then one 24-byte record per glyph,
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four float32 giving the normalised UV rectangle followed by leftMargin,
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width, rightMargin and a pad as uint16. Field names come from
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JayFoxRox/lindbergh-tools Utilities/src/font.c, written against a real
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LucidaConsole_12.abc rather than against this substitute.
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The built-in itself is Liberation Mono Bold rasterised at 18 px: 95 of
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its 96 glyphs are byte-identical to that rendering, cropped at the UV
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rectangles its own metrics declare. Liberation carries a 2010 and 2012
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digitisation copyright, so it cannot be a 2005 Sega asset.
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Otherwise the fontABC array in resources/font.h answers the read, with
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ftell returning fontABClen.
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- name: LucidaConsole_12.tga
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system: sega-lindbergh
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required: false
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hle_fallback: true
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has_builtin: true
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description: "Lucida Console font texture"
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source_ref: "src/lindbergh/hook.c:683-695"
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note: >-
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Read from the game directory only when DISABLE_BUILTIN_FONT is set.
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The built-in is one shared 128x256 atlas (fontTGA) and one metrics
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table (fontABC) answering all four font paths, so it substitutes for
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the Sega originals rather than reproducing either of them.
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The .abc is the metrics sidecar of the .tga atlas, named for the GDI
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ABC width triple. Header of 28 bytes: renderOffset, renderHeight,
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atlas width, atlas height, lineHeight, then firstSymbol and lastSymbol
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as uint16 and a uint32 symbol count; then one 24-byte record per glyph,
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four float32 giving the normalised UV rectangle followed by leftMargin,
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width, rightMargin and a pad as uint16. Field names come from
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JayFoxRox/lindbergh-tools Utilities/src/font.c, written against a real
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LucidaConsole_12.abc rather than against this substitute.
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The built-in itself is Liberation Mono Bold rasterised at 18 px: 95 of
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its 96 glyphs are byte-identical to that rendering, cropped at the UV
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rectangles its own metrics declare. Liberation carries a 2010 and 2012
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digitisation copyright, so it cannot be a 2005 Sega asset.
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Otherwise the fontTGA array in resources/font.h answers the read.
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The copy here is the fontTGA array of resources/font.h written out, the bytes
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fread returns for the built-in.
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- name: LucidaConsole_12.abc
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system: sega-lindbergh
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required: false
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hle_fallback: true
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has_builtin: true
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description: "Lucida Console font metrics"
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source_ref: "src/lindbergh/hook.c:697-709"
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note: >-
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Read from the game directory only when DISABLE_BUILTIN_FONT is set.
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The built-in is one shared 128x256 atlas (fontTGA) and one metrics
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table (fontABC) answering all four font paths, so it substitutes for
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the Sega originals rather than reproducing either of them.
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The .abc is the metrics sidecar of the .tga atlas, named for the GDI
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ABC width triple. Header of 28 bytes: renderOffset, renderHeight,
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atlas width, atlas height, lineHeight, then firstSymbol and lastSymbol
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as uint16 and a uint32 symbol count; then one 24-byte record per glyph,
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four float32 giving the normalised UV rectangle followed by leftMargin,
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width, rightMargin and a pad as uint16. Field names come from
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JayFoxRox/lindbergh-tools Utilities/src/font.c, written against a real
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LucidaConsole_12.abc rather than against this substitute.
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The built-in itself is Liberation Mono Bold rasterised at 18 px: 95 of
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its 96 glyphs are byte-identical to that rendering, cropped at the UV
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rectangles its own metrics declare. Liberation carries a 2010 and 2012
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digitisation copyright, so it cannot be a 2005 Sega asset.
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Otherwise the fontABC array in resources/font.h answers the read.
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The copy here is the fontABC array of resources/font.h written out, the bytes
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fread returns for the built-in.
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# -- Lindbergh runtime configuration --
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- name: lindbergrc
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system: sega-lindbergh
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required: false
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description: "Lindbergh site configuration read by Sega's lxmaster boot supervisor"
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source_ref: "src/lindbergh/hook.c:650-653"
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unsourceable: >-
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/root is a symlink to /usr/local/root, so the file sits on the same
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unpreserved hard-disk partition as segaboot. Nothing canonical exists to
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reproduce either: every key is a site or unit specific development
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setting, and a stock production machine ships no lindbergrc at all.
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note: >-
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An INI file, sections [develop], [terminal], [segaboot] and [keychip].
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It is read by Sega's lxmaster boot supervisor, not by the games; the
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per-title <id>rc files that do ship in game dumps are xinit client
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scripts, a different thing. The fopen hook rewrites /root/lindbergrc to
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lindbergrc in the game directory, and the loader neither creates the file
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nor substitutes for it.
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- name: gamecontrollerdb.txt
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system: sega-lindbergh
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category: game_data
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required: false
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description: "SDL gamepad mappings added on top of the built-in table"
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source_ref: "src/lindbergh/lindbergh.c:415-430, src/lindbergh/lindbergh.c:478, src/lindbergh/sdlInput.c:209-217"
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note: >-
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Loaded from the path given by -d or --controllerdb, passed through the
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LINDBERGH_CONTROLS_DB_PATH environment variable. The built-in mappings in
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gameControllerMappings.c load first and remain when no file is supplied.
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