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feat: re-profile 14 emulators, add dosbox and ep128emu_core

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batch re-profiled dosbox_pure through fbalpha2012_cps1 with upstream
verification. new profiles: dosbox, ep128emu_core. regenerate database.
This commit is contained in:
Abdessamad Derraz
2026-03-23 15:04:43 +01:00
parent 7dce7499d0
commit 65b6ab9354
17 changed files with 454 additions and 138 deletions
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emulators/emux_sms.yml
+15 -33
View File
@@ -1,7 +1,9 @@
emulator: "emux (SMS)"
type: libretro
core_classification: official_port
source: "https://github.com/libretro/emux"
profiled_date: "2026-03-19"
upstream: "https://github.com/sronsse/emux"
profiled_date: "2026-03-23"
core_version: "0.1"
display_name: "Sega - Master System (Emux SMS)"
cores:
@@ -10,37 +12,17 @@ systems:
- sms
notes: |
emux is a multi-system emulator by Sebastien Ronsse, supporting CHIP-8,
Game Boy, NES, and Sega Master System as separate libretro cores.
emux is a multi-system emulator by Sebastien Ronsse. BIOS and cartridge
code identical between upstream and libretro fork (only difference: libretro
adds g_ram_data/g_ram_size exposure in mach/sms.c for RETRO_MEMORY_SYSTEM_RAM).
BIOS loading in controllers/mapper/sms_mapper.c:
static char *bios_path = "bios.sms"; (line 33)
#define BIOS_SIZE 0x2000 (line 7, 8192 bytes)
sms_mapper->bios = file_map(PATH_SYSTEM, bios_path, 0, BIOS_SIZE);
If file_map returns NULL, init returns false — core cannot start.
No HLE fallback, no skip logic.
BIOS loaded via file_map(PATH_SYSTEM, "bios.sms", 0, BIOS_SIZE) in
sms_mapper_init (sms_mapper.c:162-165). Returns false on failure — no HLE
fallback. Mapped at 0x0000, overlays cartridge ROM until bios_disable bit
set in slot control register (sms_mapper.c:79-82).
BIOS enable/disable via slot control register port write (lines 74-90):
bios_disable bit in control union. Reset clears bios_disable and
adds BIOS region to memory map. Writing bios_disable=1 removes
the BIOS overlay, exposing cartridge ROM underneath.
Cartridge loading delegated to sega_mapper controller:
ROM mapped via file_map(PATH_DATA, ...), 16 KB banks (BANK_SIZE=0x4000),
3 bank slots (NUM_BANKS=3), bank select registers at 0xFFFD-0xFFFF.
Memory map from mach/sms.c:
0x0000-0xBFFF Mapper (BIOS overlay + cartridge ROM banks)
0xC000-0xDFFF RAM (8 KB)
0xE000-0xFFFF RAM mirror
The .info declares firmware_count=1, firmware0_opt=false.
is_experimental=true. No save states, rewind, or netplay support.
Supported extensions: sms, bms, bin, rom.
system_directory obtained via RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY
(libretro/libretro.c:23-25), passed as "system-dir" config param.
BIOS loaded from this directory via PATH_SYSTEM.
No hash validation. Code accepts any file >= 8192 bytes.
is_experimental=true. No save states, rewind, or netplay.
files:
- name: "bios.sms"
@@ -48,6 +30,6 @@ files:
description: "Sega Master System BIOS"
required: true
size: 8192
md5: "840481177270d5642a14ca71ee72844c"
source_ref: "controllers/mapper/sms_mapper.c:7 (BIOS_SIZE=0x2000), :33 (bios_path), :167-172 (file_map)"
note: "Mapped at 0x0000, overlays cartridge ROM until bios_disable bit set in slot control register. No HLE — core fails to init without this file."
validation: [size]
source_ref: "controllers/mapper/sms_mapper.c:12 (BIOS_SIZE=0x2000), :61 (bios_path), :162-170 (file_map + NULL check → return false)"
note: "Mapped at 0x0000, overlays cartridge ROM until bios_disable bit set. file_map rejects files < 8192 bytes (file.c:59)."