Jpcsp is a Sony PSP Emulator in Java by shadow, one of the PCSX2 Coder, for Windows and Linux - Changelog - Download.
Quote:
r1432
Improved JPCSP´s documentation.
r1431
Implemented sceKernelReleaseWaitThread()
r1430
Fixed BufferOverflowException in pspdisplay.
r1429
Improvement of sceUtilitySavedataInitStart(), sceUtilityMsgDialogInitStart() and sceUtilityOskInitStart(): display a dialog only when the VideoEngine is not busy to avoid a deadlock (e.g. VideoEngine/display waiting on a STALL and JOptionPane waiting on a display).
r1428
sceIoOpen: retry count is 4 bits (exact behavior has to be checked). Better test of "rw"-mode.
r1427
PRIM_SPRITES: the PSP is flipping the texture under some conditions. To be further tested (condition still not clear).
r1426
Small fixes in sceAtrac3plus. Added function from version 2.5
r1425
Added logging for unknown behavior at SIGNAL command
r1424
sceKernelWaitEventFlag(): same handling as sceKernelWaitSema() inside callback
r1423
Small fix in logging message
r1422
Minor changes...
r1421
Do not call a GE callback at address 0
r1420
Improved log information for error "Ignored Matrix upload value"
r1419
Implemented sceDisplayIsVblank()
r1418
Only sceGeDrawSync(mode=0) and sceGeListSync(mode=0) are not allowed inside interrupts (spotted by Orphis).
r1417
sceDisplayWaitVblankXXX(): thread switch inside a callback currently not supported (callbacks V1 & V2 need to be updated to the new callback architecture). Fix in sceKernelSignalSema() to not yield inside a callback.
r1416
Little improvments
r1415
Fix a bug with modelMatrixChanged in videoEngine
r1414
Added exportation/importation of breakpoints to the debugger (also performed some aesthetical changes). Updated MetaInformation file.