mirror of
https://github.com/Abdess/retroarch_system.git
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d929424988
- Added profiled_date field to all 204 existing profiles for update tracking - Created 56 alias profiles for cores that share BIOS with a parent (e.g., mednafen_psx -> beetle_psx, fbalpha2012 -> fbneo) 260 total profiles covering all 294 libretro cores (204 unique + 56 alias).
77 lines
2.7 KiB
YAML
77 lines
2.7 KiB
YAML
emulator: M2000
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type: libretro
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source: "https://github.com/p2000t/M2000"
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profiled_date: "2026-03-18"
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cores:
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- m2000
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systems:
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- philips-p2000t
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notes: |
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M2000 is a Philips P2000T home computer emulator ported to libretro.
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The libretro port does NOT require any external BIOS or ROM files.
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All required ROMs are compiled directly into the core binary via
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src/libretro/m2000_roms.h:
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- monitor_rom (4096 bytes) - P2000T monitor ROM, loaded at 0x0000-0x0FFF
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- basic_nl_rom (16384 bytes) - Dutch BASIC cartridge ROM, loaded at 0x1000-0x4FFF
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The SAA5050 teletext font is also embedded via src/libretro/m2000_saa5050.h.
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retro_init() at src/libretro/m2000_libretro.c:444 calls:
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InitP2000(monitor_rom, basic_nl_rom)
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which copies the embedded arrays directly into the ROM memory space
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(src/P2000.c:282-283 and 308-311), bypassing all file I/O.
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The standalone (non-libretro) version loads these as external files:
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- P2000ROM.bin (monitor ROM, 4096 bytes)
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- BASIC.bin (BASIC cartridge ROM, 16384 bytes)
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- Default.fnt (SAA5050 font, 2240 bytes)
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These files exist in the repo root for the standalone build only.
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The core accepts .cas (cassette) content and can also run with no
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content to boot directly into P2000T BASIC.
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files: []
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platform_details:
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bios_mapping:
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target: "20K ROM space: 0x0000-0x0FFF monitor, 0x1000-0x4FFF BASIC cartridge"
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source_ref: "src/P2000.c:249-311, src/libretro/m2000_libretro.c:444"
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notes: |
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InitP2000() allocates 20K (0x5000) for ROM and 4K for VRAM.
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The monitor ROM occupies the first 4K, the BASIC cartridge ROM
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occupies the next 16K. In the libretro build, both are passed
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as in-memory byte arrays from the embedded header.
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embedded_roms:
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monitor_rom:
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source_ref: "src/libretro/m2000_roms.h:1372"
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size: 4096
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basic_nl_rom:
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source_ref: "src/libretro/m2000_roms.h:1"
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size: 16384
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saa5050_fnt:
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source_ref: "src/libretro/m2000_saa5050.h:1"
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note: "Teletext character generator font, also embedded"
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standalone_files:
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note: |
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The standalone build (allegro/SDL) loads P2000ROM.bin, BASIC.bin,
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and Default.fnt from disk via fopen(). The libretro build skips
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this entirely by passing embedded arrays to InitP2000().
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files:
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- name: "P2000ROM.bin"
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size: 4096
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md5: 2a9c5b22537738b66f4e619734318c15
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sha1: 4dbb28adad30587f2ea536ba116898d459faccac
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- name: "BASIC.bin"
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size: 16384
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md5: 2191811aa64f8e7f273ce0f462374728
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sha1: fb5100436c99634a2592a10dff867f85bcff7aec
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- name: "Default.fnt"
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size: 2240
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md5: e06dd73b8a149990f7722eabbe4f286f
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sha1: dc3508afcafb38fc33e883b0caf4cf3909998a07
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