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v2026.04.02/emulators/emuscv.yml

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feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
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emulator: EmuSCV
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
2026-03-23 15:04:43 +01:00
type: libretro
core_classification: community_fork
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
source: "https://github.com/wzcwzc/emuscv"
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
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upstream: "http://takeda-toshiya.my.coocan.jp/"
profiled_date: "2026-03-23"
core_version: "0.12"
docs: add core_version, display_name to all 260 emulator profiles Every profile now has: - profiled_date: date of source code analysis - core_version: version from libretro-core-info .info files - display_name: human-readable name from .info files 260/260 profiles complete. 294/294 libretro cores covered. Standalone emulators (cemu, rpcs3, xemu, vita3k) versioned manually.
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display_name: "EPOCH/YENO Super Cassette Vision"
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
cores:
- emuscv
systems:
- scv
notes: |
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
2026-03-23 15:04:43 +01:00
Libretro port of eSCV by Takeda Toshiya (Common Source Code Project),
ported to libretro by MARCONATO Maxime. Upstream source mirrored at
https://github.com/tautologico/common-src-project (src/vm/scv/).
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
2026-03-23 15:04:43 +01:00
BIOS loading in src/vm/scv/memory.cpp:initialize() (lines 74-243).
Tries filenames in order: upd7801g.s01, upd7801g.bin, upd7801g.bios,
bios.rom, bios.bin. First successful open wins. Upstream eSCV uses
only BIOS.ROM (uppercase); the libretro port renamed and added
fallback aliases.
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
The BIOS is read as 0x1000 (4096) bytes into the bios[] array, mapped
read-only at CPU address 0x0000-0x0FFF (UPD7801 internal ROM area).
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
2026-03-23 15:04:43 +01:00
When CHECKBIOS core option is YES, the core computes MD5 of the loaded
data and compares against 635a978fd40db9a18ee44eff449fc126. If the
hash does not match, the BIOS is rejected (zeroed out,
bios_present=false). When CHECKBIOS is AUTO (default) or NO, any file
content is accepted. The log message for AUTO says "automatic (yes)"
but the code skips the check (code bug: != YES_VAL at line 80).
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
The font/character data is embedded within the BIOS at offset 0x200
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
2026-03-23 15:04:43 +01:00
(memory.h get_font() returns bios + 0x200). No separate font ROM file.
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
The core can start without BIOS (supports_no_game=true) but shows
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
2026-03-23 15:04:43 +01:00
"BIOS not found" or "Bad BIOS" on the OSD. Games will not run without
it.
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
2026-03-23 15:04:43 +01:00
The .info declares firmware_count=1, firmware0_opt=false. Matches code.
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
files:
- name: "upd7801g.s01"
system: scv
required: true
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
2026-03-23 15:04:43 +01:00
size: 4096
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
md5: 635a978fd40db9a18ee44eff449fc126
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
2026-03-23 15:04:43 +01:00
validation: [md5]
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
note: "UPD7801G internal ROM (BIOS). Mapped at 0x0000-0x0FFF. Contains character font at offset 0x200."
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
2026-03-23 15:04:43 +01:00
source_ref: "src/vm/scv/memory.cpp:74-243"
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
aliases:
- "upd7801g.bin"
- "upd7801g.bios"
- "bios.rom"
- "bios.bin"
platform_details:
cpu: "NEC UPD7801G"
bios_mapping:
upd7801g:
target: "0x0000-0x0FFF (CPU internal ROM, 4 KB)"
format: "raw binary"
feat: re-profile 14 emulators, add dosbox and ep128emu_core batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream verification. new profiles: dosbox, ep128emu_core. regenerate database.
2026-03-23 15:04:43 +01:00
source_ref: "src/vm/scv/memory.cpp:249-254"
feat: complete emulator profiling, 81 engines (final batch) mame2003_plus (16 BIOS ZIPs, MAME 0.78 naming), mame2010 (51 ZIPs), mame2016 (37 ZIPs incl Lindbergh), hbmame (MAME 0.220, no custom BIOS), tyrquake (no BIOS), cannonball (29 OutRun ROMs with CRC32), uzem (open source, no BIOS), vecx (ROM embedded), emuscv (UPD7801G), b2 (BBC Micro standalone, ROMs bundled) 81 total emulator profiles covering all libretro cores with firmware. Cross-reference: 731 undeclared files, 186 already in repo.
2026-03-17 19:46:38 +01:00
notes: |
Memory map from memory.cpp:initialize():
0x0000-0x0FFF BIOS ROM (read-only)
0x2000-0x3FFF VRAM (8 KB)
0x8000-0xFF7F Cartridge ROM (up to 4 banks of 32 KB)
0xFF80-0xFFFF CPU internal RAM (128 bytes)
Font data lives inside the BIOS at offset 0x200, accessed via
get_font() for the VDP character rendering (src/vm/scv/vdp.cpp).
cartridge_loading:
formats: "cart, bin, rom, 0 (multi-file: .0/.1/.2/.3), zip"
banking: "4 banks of 32 KB via PC5/PC6 port lines"
source_ref: "src/vm/scv/memory.h, src/vm/scv/memory.cpp"
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