mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-04-13 12:22:33 -05:00
8768aed7aa
freechaf (Channel F, 3 ROMs), freeintv (Intellivision, exec+grom), ep128emu (Enterprise/TVC/CPC/ZX, 22 ROMs all built-in), kronos (Saturn + 14 ST-V blobs), gambatte (GB/GBC boot ROMs), mgba (GBA/GB/GBC/SGB, 10 CRC32 revisions), nestopia (FDS + NstDatabase), px68k (X68000, 6 ROMs in keropi/), fuse (ZX Spectrum, 17 machines), o2em (Odyssey2/Videopac, 4 BIOS by CRC32) 41 total profiles. Cross-reference: 644 undeclared, 167 in repo.
99 lines
3.5 KiB
YAML
99 lines
3.5 KiB
YAML
emulator: O2EM
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type: libretro
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core: o2em_libretro
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source: "https://github.com/libretro/libretro-o2em"
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systems:
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- odyssey2
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- videopac
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notes: |
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O2EM is the libretro port of the Odyssey2/Videopac emulator.
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The core requires exactly one BIOS ROM selected via the o2em_bios core option.
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Default is o2rom.bin (Odyssey2 NTSC). The user can switch to c52.bin, g7400.bin
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or jopac.bin for European/French Videopac variants.
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BIOS files are loaded from the system directory into rom_table[0] (1024 bytes).
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The core identifies the BIOS variant by CRC32 and sets the vpp flag accordingly
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(vpp=1 enables Videopac+ enhanced graphics for g7400.bin and jopac.bin).
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The core will not start without a valid BIOS file present.
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Any single BIOS from the list below is sufficient for its region/hardware.
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All BIOS files are exactly 1 KB (1024 bytes).
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BIOS detection: libretro.c load_bios() lines 146-212, CRC32 switch.
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BIOS selection: libretro_core_options.h o2em_bios option lines 52-64.
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Core option handling: libretro.c lines 1107-1134.
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files:
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# -------------------------------------------------------
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# Magnavox Odyssey2 (NTSC) - G7000 model
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# -------------------------------------------------------
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- name: "o2rom.bin"
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system: odyssey2
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region: [north-america]
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required: true
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size: 1024
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md5: "562d5ebf9e030a40d6fabfc2f33139fd"
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sha1: "b2e1955d957a475de2411770452eff4ea19f4cee"
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crc32: "8016a315"
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note: "Magnavox Odyssey2 BIOS (G7000 NTSC). Default BIOS, vpp=0."
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source_ref: "libretro.c:182-186"
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# -------------------------------------------------------
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# Philips Videopac G7000 (European)
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# -------------------------------------------------------
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- name: "c52.bin"
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system: videopac
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region: [europe]
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required: true
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size: 1024
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md5: "f1071cdb0b6b10dde94d3bc8a6146387"
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sha1: "a6120aed50831c9c0d95dbdf707820f601d9452e"
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crc32: "a318e8d6"
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note: "Philips Videopac G7000 European BIOS. vpp=0, auto-sets PAL region."
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source_ref: "libretro.c:192-197"
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# -------------------------------------------------------
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# Philips Videopac+ G7400 (European)
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# -------------------------------------------------------
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- name: "g7400.bin"
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system: videopac
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region: [europe]
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required: true
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size: 1024
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md5: "c500ff71236068e0dc0d0603d265ae76"
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sha1: "5130243429b40b01a14e1304d0394b8459a6fbae"
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crc32: "e20a9f41"
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note: "Philips Videopac+ G7400 European BIOS. vpp=1, enables enhanced graphics."
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source_ref: "libretro.c:187-191"
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# -------------------------------------------------------
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# Philips Videopac+ G7400 (French) - JoPac
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# -------------------------------------------------------
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- name: "jopac.bin"
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system: videopac
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region: [france]
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required: true
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size: 1024
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md5: "279008e4a0db2dc5f1c048853b033828"
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sha1: "54b8d2c1317628de51a85fc1c424423a986775e4"
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crc32: "11647ca5"
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note: "Philips Videopac+ G7400 French BIOS (JoPac). vpp=1, enables enhanced graphics."
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source_ref: "libretro.c:198-203"
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platform_details:
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odyssey2:
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bios_size: 1024
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bios_selection: "core option o2em_bios, default o2rom.bin"
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detection_method: "CRC32 of 1024-byte ROM"
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hle_available: false
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source_ref: "libretro.c:146-212, libretro_core_options.h:52-64"
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videopac:
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bios_size: 1024
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bios_selection: "core option o2em_bios, choose c52/g7400/jopac"
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detection_method: "CRC32 of 1024-byte ROM"
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vpp_flag: "g7400.bin and jopac.bin set vpp=1 for enhanced graphics"
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hle_available: false
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source_ref: "libretro.c:146-212, libretro_core_options.h:52-64"
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