Street Fighter III: 3rd Strike (PSP Port) PSP Eboot

Street Fighter III: 3rd Strike - PSP Port

A PSP port of Street Fighter III: 3rd Strike, based on the PS2/PC decompilation.

• Start+Select: Soft reset (returns to title screen)
• Press Start at boot: Disable backgrounds (debug)
• Press Select at boot: play as Player 2

-"Stretch" for full screen
-"Square" for pseudo 4:3
-"Native" for 384x224 resolution
-"Vertical" for native width, expanded height
-"Extended" for experimental rendering

-"Nearest" for nearest scaling
-"Bilinear" for #define PSP_FATar scaling

-"Fast" for scaling each vertex
-"Smooth" for scaling the whole canvas

-"On" to emulate a CRT's colors
-"OFF" for original colors

• Choose between stereo or mono
• Change the volume for the music and the sound effects
• Choose either "Arranged" soundtrack or "Original"

• Native CPS3 resolution (384x224) centered on PSP screen (480x272)
• Per-vertex offset scaling with scissor clipping for clean pixel rendering
• No sub-pixel seams or texture atlas bleeding
• Shadow transparency via GU_TFX_MODULATE

• BGM: CRI ADX ADPCM decoder with 48kHz to 44.1kHz resampling
• SFX: PS2 SPU2 emulator (48 voices, VAG/ADPCM, ADSR envelopes)
• Character voices: Per-character BD sound banks loaded from AFS
• VS screen jingle: In-memory ADX playback (ADX_StartMem)
• Seamless BGM: Gapless segment transitions with preload system
• Capcom Sound Engine (CSE): Full PHD/TSB bank system for SE dispatch

• AFS archive reader with background I/O thread
• Async file reads for asset loading (LDREQ queue)
• Sync reads for audio (gapless transitions)
• Single AFS file handle design

• 333MHz CPU clock on "Smooth" rendering, 266MHz on "Fast" rendering
• SPU emulator: MAX_ACTIVE_VOICES=10 cap, linear interpolation, unrolled ADPCM decode
• -O3 -ffast-math compiler optimization
• Graceful error recovery (no freeze traps)

• Screen settings and sound setting can be saved using the PSP's native api, and it also saves the arcade progress (rankings and arcade completion) which unlocks extra colors (holding start when selecting a character)

• Seamless BGM segment transitions have a minor audible click on some tracks
• White noise burst possible on SPU voices with invalid start addresses (mitigated with address validation)