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feat: re-profile 12 emulators, fix dosbox_core regression

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batch re-profiled clownmdemu through dosbox_core with upstream
verification. restored dosbox_core mt-32/cm-32l rom halves removed
by batch (14 files), added core_classification. regenerate database.
This commit is contained in:
Abdessamad Derraz
2026-03-23 12:37:43 +01:00
parent 2612e9fe2d
commit 438fb6e9af
13 changed files with 97 additions and 182 deletions
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emulators/clownmdemu.yml
+8 -37
View File
@@ -1,8 +1,9 @@
emulator: ClownMDEmu
type: standalone + libretro
core_classification: official_port
source: "https://github.com/Clownacy/clownmdemu-libretro"
upstream: "https://github.com/Clownacy/clownmdemu"
profiled_date: "2026-03-18"
profiled_date: "2026-03-23"
core_version: "Git"
display_name: "Sega - MD/CD (ClownMDEmu)"
cores:
@@ -12,43 +13,17 @@ systems:
- sega-megacd
notes: |
ClownMDEmu is a Sega Mega Drive/Genesis and Mega CD emulator by Clownacy.
Supports cartridge (bin/md/gen) and CD (cue/iso/chd) formats, plus a
subsystem for cartridge+CD combo (Mega CD Mode 1).
The core has NO external BIOS file requirements. firmware_count = 0 in the
libretro .info file confirms this.
Mega CD boot ROM: a custom open-source replacement boot ROM is compiled
directly into the binary as a 16384-entry uint16 array
(mega-cd-boot-rom.c included into bus-main-m68k.c:19-21). Source at
https://github.com/Clownacy/clownmdemu-mcd-boot. No external CD BIOS
files (bios_CD_E.bin, bios_CD_U.bin, bios_CD_J.bin) are needed or loaded.
TMSS (Trademark Security System): not implemented at all. No TMSS ROM is
loaded or checked. The core boots games directly without the "Produced by
or under license from Sega" screen.
The system directory (RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY) is only used
as a fallback path for Backup RAM (BuRAM) save files, not for BIOS loading.
CD add-on can be enabled for cartridge games via the "clownmdemu_cd_addon"
core option to allow CD music features, but this uses the built-in boot
ROM, not an external BIOS.
The core implements its own Mega CD BIOS call handler (MegaCDBIOSCall in
bus-sub-m68k.c) via HLE (high-level emulation) of Sub-CPU BIOS functions
including CDBIOS, CDCTRN, FDRSET, FDRCHG, DRVINIT, CDCSTOP, CDCSTAT,
CDCREAD, and others.
Mega Drive/Genesis and Mega CD emulator by Clownacy. Supports cartridge
(bin/md/gen) and CD (cue/iso/chd) formats, plus a subsystem for
cartridge+CD combo (Mega CD Mode 1). Mega CD boot ROM is an open-source
replacement compiled into the binary (mega-cd-boot-rom.c, 32 KB). Sub-CPU
BIOS calls handled via HLE. TMSS not implemented. No external files needed.
files: []
analysis:
tmss:
supported: false
notes: |
TMSS is not implemented. No ROM loaded, no "Produced by Sega" check.
No references to TMSS exist anywhere in the codebase.
megacd_bios:
external_required: false
@@ -56,10 +31,6 @@ analysis:
boot_rom_source: "https://github.com/Clownacy/clownmdemu-mcd-boot"
boot_rom_location: "source/mega-cd-boot-rom.c (16384 uint16 entries = 32 KB)"
bus_mapping: "0x400000-0x41FFFF (address & 0x20000 == 0)"
source_ref: "bus-main-m68k.c:19-21, bus-main-m68k.c:484-494"
source_ref: "bus-main-m68k.c:19-21, bus-main-m68k.c:501-513"
bios_hle: true
hle_source_ref: "bus-sub-m68k.c:64 (MegaCDBIOSCall)"
notes: |
The Mega CD boot ROM is an open-source replacement compiled into the
binary. Sub-CPU BIOS calls are handled via HLE. No external Sega CD
BIOS files (bios_CD_E/U/J.bin) are needed.