METAL GEAR SOLID 4: Guns of the Patriots - Master Collection Version (PPSA18194)

[ps54all]

Existing thread

• I searched this category for the title ID and no thread exists for this title on any platform.

Title

METAL GEAR SOLID 4: Guns of the Patriots - Master Collection Version (PPSA18194), Unity launcher plus the original game executable mgs4/mgs4.elf.

Content version tested

1.004.003 (title screen shows Ver. 1.4.1)

AnyPS5 commit

main dacd785 with open PRs #5411, #5514, #5515, #5517 (on #5075), #5425 and one local experiment (below).

System tested

Windows 11, i9-10850K, RTX 3080 10 GB (NVIDIA 610.74), 32 GB, WinLibs GCC 15.2.0 r7, Release.

Furthest point

Gameplay. The launcher reaches its title screen at 60 fps, Game Selection → language (Italian) → Start Game hands off to the game executable, the autosave notice and the intro movie play with sound, and the game is playable at about 3 fps.

What is shown

Launcher menus, the autosave notice, the intro movie and gameplay render correctly as far as tested (DualSense input works).

Current blocker

• Performance: about 3 fps in gameplay (not profiled yet).
• Not upstream yet, in the order the title hits them:
  1. sceNetResolverStartNtoa6 (launcher import): feat(libSceNet): implement sceNetResolverStartNtoa6 #5411.
  2. The game executable's libSceCesCs imports: the module is loaded as libSceCesCs-module (feat(libSceCesCs): build libSceCesCs-module from the libSceCesCs source #5425), and EUC-JP string conversions are needed (feat(libSceCesCs): convert EUC-JP (CP51932) strings through a profile context #5515; JIS X 0208 two-byte characters still throw, none was hit in Italian).
  3. sceAppContentAddcontDelete: feat(libSceAppContent): export sceAppContentAddcontDelete #5514.
  4. Intro movie audio: Opus mapping family 255 with 4 channels, feat(ajm): decode Opus mapping family 255 with several channels #5517 (depends on fix(ajm): accept Opus mapping family 255 for a mono stream #5075).
  5. 0x293 = 0x06030000 (PA_SC_MODE_CNTL_1 bit 16, PS_ITER_SAMPLE) is refused by design: sample iteration, primitive discard or out-of-order rasterization is unsupported. I accepted the bit locally to get past it. It is only a no-op on single-sample targets; whether MGS4 uses it with MSAA is not checked yet, so no PR.

How it was run

1. Unpack eboot.bin, sce_module/*.prx, Media/Plugins/*.prx and mgs4/mgs4.elf (fake-signed SELFs) to ELF; the second executable goes to source/mgs4/mgs4.elf.
2. relinker --windows --to-intel --module-dir Media/Plugins --executable mgs4/mgs4.elf source/eboot.elf app.exe (writes mgs4.mgs4.elf.exe beside app.exe), then copy the guest modules of app0/prx (PS5Util, Il2CppUserAssemblies) into app0/Media/Modules. Relink again after the system libraries gain exports: the relinker resolves imports against the libraries it sees.
3. Run app.exe; no APS5_* variables are needed (I used ANYPS5_PRESENT_MODE=mailbox). The launcher starts the game executable with -region eu -lan it -selfregion NA -resolution 0 -launcherpath /app0/eboot.bin -fsroot /app0/mgs4/.

AI-assisted (Claude Code); the runs and the play test were on my machine.