mirror of
https://github.com/Abdess/retroarch_system.git
synced 2026-10-11 05:53:23 -05:00
52 lines
2.4 KiB
YAML
52 lines
2.4 KiB
YAML
emulator: EmuCV
|
|
type: libretro
|
|
core_classification: pure_libretro
|
|
source: "https://gitlab.com/MaaaX-EPOCH84/libretro-emucv"
|
|
profiled_date: "2026-09-17"
|
|
pin_frozen: "the shipping core is this revision. HEAD removed the prototype from the tree on 2026-09-11 (a188c0f) and archived its last description files on 2026-09-12 (06a066a); the new skeleton has not yet been copied from libretro-emuscv1 (ROADMAP step 4.3). Recaling would repoint these refs at a tree that currently holds nothing but a roadmap."
|
|
source_commit: "6a6e1b15c5d5afefbc3fefdd8b52f3f2c8c0a0eb"
|
|
core_version: "0.00"
|
|
display_name: "EPOCH - Cassette Vision (EmuCV)"
|
|
cores:
|
|
- emucv
|
|
systems:
|
|
- epochcv
|
|
|
|
notes: |
|
|
Cassette Vision emulator written for libretro by Maxime Marconato. The
|
|
console has no system ROM: each cartridge carries the NEC uPD777 (or
|
|
uPD778) that runs it, so the cartridge dump is the whole machine.
|
|
|
|
Content is opened from its full path (need_fullpath = true,
|
|
src/core.cpp:307) with a plain fopen (src/emu.cpp:138,
|
|
src/fileio.cpp:84-93). The file must be exactly 4064 bytes, the 2032
|
|
valid program addresses as 16-bit words (src/emu.h:16, src/emu.h:223,
|
|
src/emu.cpp:143-153); any other size zeroes program memory and leaves
|
|
the cartridge not inserted. Each word is read as a big-endian 12-bit
|
|
instruction (src/emu.cpp:159-164). The commented MD5 check at
|
|
src/emu.cpp:313-320 is not compiled.
|
|
|
|
The uPD778 character generator (128 patterns of 7 lines) is a static
|
|
table compiled into the core, pattern_778c at src/emu.cpp:168-307, and
|
|
is never read from disk.
|
|
|
|
RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY and GET_SAVE_DIRECTORY are
|
|
queried at init and stored (src/core.cpp:362-366, src/core.cpp:377-381,
|
|
src/common.cpp:1054-1094). Nothing reads them back: the path helpers
|
|
inherited from the Common Source Code Project (get_application_path,
|
|
create_local_path, the ini reader and writer) sit inside comment blocks
|
|
(src/common.cpp:799-937, src/common.cpp:1095-1719). Core options are
|
|
not registered, f_retro_load_settings and f_retro_save_settings are
|
|
empty (src/core.cpp:2562-2895, src/core.cpp:2900-3099). No save RAM
|
|
(src/core.cpp:3437-3450) and no save states (src/core.cpp:3374-3390).
|
|
|
|
The .info declares firmware_count = 0 and matches the code.
|
|
|
|
files: []
|
|
|
|
platform_details:
|
|
cpu: "NEC uPD777C / uPD778C, one per cartridge"
|
|
program_memory: "2032 words of 12 bits"
|
|
pattern_memory: "896 bytes, compiled in"
|
|
source_ref: "src/emu.h:16-19"
|