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Abdessamad Derraz
4231902a6c
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190 lines
10 KiB
YAML
190 lines
10 KiB
YAML
emulator: Hatari
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type: libretro
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core_classification: official_port
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source: "https://github.com/libretro/hatari"
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upstream: "https://github.com/hatari/hatari"
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logo: "https://raw.githubusercontent.com/hatari/hatari/main/share/icons/hicolor/scalable/apps/hatari.svg"
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profiled_date: "2026-09-17"
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source_commit: "5831f66e05ae19435bd9d8ef1c6f9c93998ff6f4"
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upstream_commit: "51ed9991101fdc4623b3b38ec16e5a170cf2dffa"
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core_version: "2.6.1-devel"
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display_name: "Atari - ST/STE/TT/Falcon (Hatari)"
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cores:
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- hatari
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systems:
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- atari-st
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- atari-ste
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- atari-tt
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- atari-falcon
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notes: |
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The main branch of libretro/hatari is the upstream Hatari tree with its
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experimental libretro target in src/retro, which upstream added in
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January 2026, plus the port commits that follow the merge base recorded
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as upstream_commit: VFS, disk control, core options and hard disk
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loading. It builds as hatari_libretro (.gitlab-ci-libretro.yml:10-11,
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src/CMakeLists.txt:371-404), reports library_name hatari and the
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HATARI_VERSION string 2.6.1-devel (src/retro/main_retro.c:218-219,
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src/includes/version.h:8). The .info shipped in the tree declares no
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firmware (share/libretro/info/libretro-hatari.info). The
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hatari_libretro.info in libretro-core-info took that file's metadata on
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2026-09-16 and keeps a tos.img firmware entry with the TOS 1.02 US MD5,
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which this code never checks.
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retro_init builds <system>/tos.img, records whether it exists and passes
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it as --tos (src/retro/main_retro.c:157-207). When it is absent a
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frontend message is shown and retro_run only refreshes the framebuffer
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(src/retro/main_retro.c:186-189, src/retro/main_retro.c:250-261). The
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name is fixed by that check: the .rom and .tos fallbacks of File_Read
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(src/tos.c:60-66, src/file.c:312-353, src/file.c:544-583) are never
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reached under a frontend. A missing --tos file fails option parsing
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(src/options.c:1026-1079, src/options.c:1937-1945), but Main_ErrorExit only
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raises the quit flag in this build (src/retro/main_retro.c:478-490), so
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Main_Init carries on with bUseTos cleared and TOS_InitImage installs the
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built-in test stub of faketosData.c instead of reading a ROM
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(src/tos.c:43, src/tos.c:1112-1131, src/tos.c:1151-1162). Without a
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system directory Main_Init runs with no --tos, the TOS path falls back to
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tos.img in the Hatari data directory derived from the executable location
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(src/configuration.c:810-812, src/paths.c:305-356, CMakeLists.txt:422-434)
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and have_bios is never set. TOS_LoadImage strips the 256-byte (34-byte
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for 4.92) loader of a RAM TOS, detects EmuTOS by ETOS at offset 0x2c,
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refuses images below 0x40 bytes, above 1 MB, with a version outside
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0x100-0x6FF or a load address other than 0xE00000 or 0xFC0000, and
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coerces machine type and CPU to the TOS version unless the image is a
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512 KB or larger EmuTOS (src/tos.c:976-1097, src/tos.c:838-969). ROM
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patches apply when the hatari_patch_tos option is on and the image is
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not EmuTOS (src/retro/options.c:250-263, src/retro/options.c:784,
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src/tos.c:1220-1222). No TOS is embedded. Because nSymbolsAutoLoad
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defaults to SYM_AUTOLOAD_DEBUGGER (src/configuration.c:621,
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src/includes/configuration.h:29-31), every TOS load also reads a
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<tos>.sym symbol table when one exists (src/tos.c:1094,
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src/debug/symbols.c:1095-1113, src/debug/symbols.c:1002-1020,
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src/debug/symbols.c:372-407).
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The Hatari home directory is the RetroArch save directory
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(src/paths.c:236-250). Configuration is read from <CONFDIR>/hatari.cfg,
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/etc on Unix and the current directory on Windows, then from hatari.cfg
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in that home directory, before the --tos argument is applied
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(src/main.c:260-282, src/main.c:319-322, src/configuration.c:862-867,
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src/configuration.c:1061-1071, CMakeLists.txt:444-461). The boot core
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options are applied right after the command line, so the machine, DSP,
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CPU, FPU, memory and hatari_patch_tos keys of hatari.cfg are overwritten
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by them (src/main.c:328-330, src/retro/options.c:724-789). Every other
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section is honoured: the cartridge image (src/configuration.c:487-493),
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floppy images, GEMDOS directories and ACSI, SCSI and IDE images
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(src/configuration.c:362-364, src/configuration.c:375-483), MIDI, printer,
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RS232 and SCC host endpoints (src/configuration.c:509-543), all disabled
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by default (src/configuration.c:736-761) and opened by Midi_Host_Open,
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Printer_TransferByteTo, RS232_OpenCOMPort and SCC_Init_Channel when
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enabled (src/midi.c:342-367, src/printer.c:42-65, src/printer.c:89-106,
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src/rs232.c:175-246, src/scc.c:439-500). szMappingFileName is parsed
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(src/configuration.c:256) but the port's Keymap_LoadRemapFile is empty
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(src/retro/keymap.c:222-224). Only the SDL build reads a keymap file
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(src/sdl/keymap.c:701). The autosave snapshot is restored by
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M68000_Start (src/m68000.c:332-348), which the port never calls. TT and
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Falcon NVRAM is hatari.nvram in the home directory, read at NvRam_Init
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and written at exit (src/falcon/nvram.c:282-294,
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src/falcon/nvram.c:334-337).
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Content is a floppy image, an .m3u list parsed relative to its own
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directory (src/retro/disk_control.c:94-182), an .ide image put on the
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IDE master, a .vhd image put on ACSI 0 or a .gem marker naming a GEMDOS
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directory (src/retro/main_retro.c:369-427, src/retro/harddisk.c:32-129).
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With a .gem, <system>/hatari/BOOT.ST is inserted into drive A when it
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exists (src/retro/harddisk.c:105-127). A disk whose name ends in A pulls
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the sibling ending in B into drive B (src/floppy.c:300-343,
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src/floppy.c:385-388), and an STX image reads its .wd1772 overlay from
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the same directory (src/floppies/stx.c:807-827). Savestates pass through
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hatari_savestate.tmp in the system directory
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(src/retro/main_retro.c:41, src/retro/main_retro.c:292-359). IPF support
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is compiled in from rsn8887/capsimg when ENABLE_STATIC_CAPSIMAGE is on
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(cmake/BuildDependencies.cmake:93-126). The Windows jobs build with it
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since September 2026 (.gitlab-ci-libretro.yml:101,
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.gitlab-ci-libretro.yml:109) and the static Vita, Wii, Wii U and Switch
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jobs turn it off (.gitlab-ci-libretro.yml:193, .gitlab-ci-libretro.yml:202,
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.gitlab-ci-libretro.yml:210, .gitlab-ci-libretro.yml:218).
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File access goes through the libretro VFS when the frontend provides it
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(src/retro/vfs.c:17-48, src/file.c:253-302, src/file.c:479-492), and a
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device-prefixed path such as ux0:/ counts as absolute (src/file.c:152-164).
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files:
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- name: "tos.img"
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path: "tos.img"
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description: "Atari TOS ROM image"
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required: true
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min_size: 64
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max_size: 1048576
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validation: [size]
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source_ref: "src/retro/main_retro.c:157-207, src/retro/main_retro.c:250-261, src/options.c:1937-1945, src/tos.c:60-66, src/tos.c:976-1097, src/tos.c:838-969, src/file.c:312-353"
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note: >
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Any TOS 1.00 to 4.04, TOS 0.00, a RAM TOS or EmuTOS. The file must
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carry this exact name: retro_init only enables emulation when
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<system>/tos.img exists.
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- name: "tos.sym"
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path: "tos.sym"
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description: "Symbol table for the TOS image, nm-style text or a program symbol table"
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required: false
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storage: user_provided
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unsourceable: "one table per TOS build, valid only beside the image it was linked with: each EmuTOS release archive carries the table of its ROM, etos512k.sym beside etos512k.img, and Atari TOS has none"
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source_ref: "src/tos.c:1094, src/debug/symbols.c:1095-1113, src/debug/symbols.c:1002-1020, src/debug/symbols.c:372-407, src/configuration.c:621, src/includes/configuration.h:29-31, src/retro/main_retro.c:182-194"
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note: >
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The name is the TOS image path with its last three characters
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replaced by sym, and the image path is always tos.img here: retro_init
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passes <system>/tos.img as --tos and no other image name reaches the
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loader, so a table named after another image, emutos.sym beside
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emutos.img, is never opened. nSymbolsAutoLoad gates the read. Its
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default is not off and no core option changes it, so the table is read
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at every TOS load when present. The symbols serve the built-in
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debugger.
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- name: "cartridge ROM"
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path: null
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config_key: "szCartridgeImageFileName"
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description: "Atari ST cartridge image loaded at 0xFA0000"
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required: false
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min_size: 40
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max_size: 131076
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validation: [size]
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source_ref: "src/cart.c:41-47, src/cart.c:53-88, src/cart.c:97-104, src/cart.c:114-142, src/configuration.c:487-493, src/configuration.c:814"
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note: >
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Set through hatari.cfg. Raw images up to 0x20000 bytes or .stc
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images of exactly 0x20004 bytes whose 4-byte header is skipped.
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Extensions .img, .rom and .stc are tried when the configured path is
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missing. Replaced by the built-in GEMDOS trampoline whenever GEMDOS
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hard disk emulation, extended VDI, program autostart or OS tracing
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is on.
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- name: "BOOT.ST"
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path: "hatari/BOOT.ST"
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description: "Boot floppy inserted with GEMDOS hard disk folders"
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required: false
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source_ref: "src/retro/harddisk.c:78-129, src/retro/main_retro.c:391-395"
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note: "Inserted into drive A when the content is a .gem file."
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- name: "hatari.cfg"
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path: null
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description: "Hatari configuration file"
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required: false
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storage: user_provided
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unsourceable: "user settings in Hatari's INI format, with no canonical contents"
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source_ref: "src/main.c:260-282, src/main.c:319-322, src/main.c:328-330, src/configuration.c:862-867, src/configuration.c:1061-1071, src/paths.c:236-250, CMakeLists.txt:444-461"
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note: >
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Read from <CONFDIR>/hatari.cfg and then from hatari.cfg in the
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RetroArch save directory, before the --tos argument and the boot
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core options are applied.
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- name: "hatari.nvram"
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path: null
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description: "TT and Falcon NVRAM contents, 50 bytes"
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required: false
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has_builtin: true
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min_size: 50
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validation: [size]
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storage: user_provided
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unsourceable: "machine state the emulator writes itself at exit, with no canonical contents"
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source_ref: "src/falcon/nvram.c:96-97, src/falcon/nvram.c:116-141, src/falcon/nvram.c:148-171, src/falcon/nvram.c:282-294, src/falcon/nvram.c:334-337, src/paths.c:236-250, src/main.c:208"
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note: >
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Read from the RetroArch save directory at NvRam_Init. A short read
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keeps the built-in defaults. Saved back on exit.
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