shadps4 - RetroBIOS

Type	standalone
Source	https://github.com/shadps4-emu/shadPS4
Version	pre-release 2026-08-08
Profiled	2026-03-26
Cores	shadps4, shadps4-gui
Systems	ps4
Analysis date	2026-08-10
Analysis commit	891612c8

Technical notes

shadPS4 is a standalone PlayStation 4 emulator. Most PS4 system libraries are reimplemented in HLE. For better game compatibility, real firmware modules (.sprx) can be loaded in LLE mode from the sys_modules/ directory.

Modules are loaded by sysmodule_internal.cpp via loadModuleInternal(). If a module exists in sys_modules/, it is loaded as LLE. If absent and an HLE implementation exists, the emulator falls back to HLE. If neither, the module is stubbed and games needing it may fail.

Game-specific overrides are supported: sys_modules/{CUSA_ID}/ takes priority over the global sys_modules/ directory.

System fonts are mounted from fonts/font/ (/preinst/common/font on real PS4) and fonts/font2/ (/system/common/font2 on real PS4). These are SST (Sony Standard Text) typeface files in OTF format. The emulator mounts the directories wholesale; games load individual fonts by name. Without fonts, the emulator warns "No dumped system fonts, expect missing text or instability."

All firmware files are extracted from a real PS4 via FTP: - .sprx modules from /system/common/lib/ - font/ from /preinst/common/font/ - font2/ from /system/common/font2/

Batocera configgen (shadps4Generator.py) configures display, input, and saves but does not map BIOS/firmware paths. The emulator uses its own user directory for sys_modules/ and fonts/.

26 files | 0 required, 26 optional | 26 in repo, 0 missing | 9 with HLE fallback

libSceLibcInternal.sprx optional in repo HLE fallback
PS4 C standard library

• Path: shadps4/sys_modules/
• Source: src/core/linker.cpp:79-90

libSceNgs2.sprx optional in repo HLE fallback
PS4 next-generation audio system

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:213

libSceUlt.sprx optional in repo
PS4 user-level threading library

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:214
• No HLE implementation; the module is stubbed when absent.

libSceRtc.sprx optional in repo HLE fallback
PS4 real-time clock library

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:215

libSceJpegDec.sprx optional in repo
PS4 JPEG decoder

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:216
• No HLE implementation; the module is stubbed when absent.

libSceJpegEnc.sprx optional in repo HLE fallback
PS4 JPEG encoder

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:217

libScePngEnc.sprx optional in repo HLE fallback
PS4 PNG encoder

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:218

libSceJson.sprx optional in repo
PS4 JSON parser

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:219
• No HLE implementation; the module is stubbed when absent.

libSceJson2.sprx optional in repo
PS4 JSON v2 parser

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:220
• No HLE implementation; the module is stubbed when absent.

libSceCesCs.sprx optional in repo
PS4 character encoding conversion

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:221
• No HLE implementation; the module is stubbed when absent.

libSceAt9Enc.sprx optional in repo
PS4 ATRAC9 encoder

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:222
• No HLE implementation; the module is stubbed when absent.

libSceAudiodec.sprx optional in repo
PS4 audio decoder

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:223
• No HLE implementation; the module is stubbed when absent.

libSceAudiodecCpu.sprx optional in repo
PS4 CPU audio decoder

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:224
• No HLE implementation; the module is stubbed when absent.

libSceAudiodecCpuDdp.sprx optional in repo
PS4 CPU Dolby Digital Plus decoder

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:225
• No HLE implementation; the module is stubbed when absent.

libSceAudiodecCpuM4aac.sprx optional in repo
PS4 CPU AAC decoder

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:226
• No HLE implementation; the module is stubbed when absent.

libSceAudiodecCpuDtsHdLbr.sprx optional in repo
PS4 CPU DTS-HD LBR decoder

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:227
• No HLE implementation; the module is stubbed when absent.

libSceAudiodecCpuHevag.sprx optional in repo
PS4 CPU HEVAG decoder

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:228
• No HLE implementation; the module is stubbed when absent.

libSceFont.sprx optional in repo HLE fallback
PS4 font rendering library

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:229

libSceFontFt.sprx optional in repo HLE fallback
PS4 FreeType font library

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:230

libSceFreeTypeOt.sprx optional in repo
PS4 FreeType OpenType library

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:231
• No HLE implementation; the module is stubbed when absent.

libSceFreeTypeOl.sprx optional in repo
PS4 FreeType outline library

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:232
• No HLE implementation; the module is stubbed when absent.

libSceFreeTypeOptOl.sprx optional in repo
PS4 FreeType optimised outline library

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:233
• No HLE implementation; the module is stubbed when absent.

libSceRudp.sprx optional in repo HLE fallback
PS4 reliable UDP library

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:234

libSceWkFontConfig.sprx optional in repo
PS4 WebKit font configuration

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:235
• No HLE implementation; the module is stubbed when absent.

libSceSystemGesture.sprx optional in repo HLE fallback
PS4 system gesture recognition

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:236

libSceXml.sprx optional in repo
PS4 XML parser

• Path: shadps4/sys_modules/
• Source: src/core/libraries/sysmodule/sysmodule_internal.cpp:237
• No HLE implementation; the module is stubbed when absent.

Generated on 2026-08-23T16:12:06Z