YAUPSPE r38 is released. YAUPSPE is a PSP emulator, based on Potemkin, coded in ANSI C and that uses SDL. It's still in development, so don't expect to see a game running — only some PSP SDK samples barely work.

YAUPSPE SVN Changelog:
r38
Fixed for win32
r37
Added memory fix in case the address is not a 2 multiple for mem_write16 or 4
for mem_write32
Fixed screen (now there's no more strange colors at some places on the screen)
Fixed another time chdir & directories starting with / (now it should work as
expected in all the cases)
r36
Added some syscalls
Fixed display (now all the screen shows, and the text doesn't overwrite)
Fixed VADDR & IADDR in GE (but GE still doesn't work)
Added sceIoMkdir
Fixed jumping after _sceKernelReturnFromThread (the "PC compensation" seemed
wrong); not fatal but removes strange memory errors
r35
Finished cleaning HLE: (fixes issue 8 )
- removed syscall numbers (useless in most of cases)
- re-organized by library
- added the possibility to see when an unknown NID was called
Started implementing sceMp3
Finished fixing I/O (write, seek, and chdir) (fixes issue 13 )
Fixed awful things in DirFileSystem
Fixed path without drive name (starting directly with /) for ms0: (the path
without drive was working, but it broke ms0:)
r34
Fixed some instructions : makes the power and controller samples work mostly The emulator can now quit normally (pressing escape or closing the window) during a GU interpretation
r33
Switching GPLv3 to GPLv2 (Potemkin uses GPLv2, and I prefer it
r32
Changed project name from pspemu to Yaupspe
r31
Fixes in interpreter:
- divided Mftv VFPU function into mfv and mtv (the other will follow)
- removed useless emuhack
- added break (called when dividing by 0 by the program)
- fixed some branch instructions
- cleared some parts
- added some non-implemented instructions/tables in the tables
- removed Emu and Cop2Rese tables
Fixed ms0 reading
Fixed strange things in sceIoLseek
Fixed wakeups
Cleared __KernelLoadELFFromPtr
Added sceCtrlPeekBufferPositive (but just a copy of sceCtrlReadBufferPositive)
Various other cleaning
r30
Added syscalls
Added unrecognized stubs test
Cleaned display
Fixes in GE
Re-organized host
The emulator can now quit in a GE interpretation (useful for the infinite loops)
r29
Fixed mult instruction (makes now text write correctly
Some fixes in controller
r28
Fixed threading for jr (last method was wrong)
Fixed removing a thread
Fixed memory map problems (that caused most PSP SDK samples to crash before main
function)
Fixed drawing (there was a strange mess with pspframebuf defined everywhere...;
now some letters draw in some PSP SDK samples)
Now draw display at a timed rate (~30FPS)
Various adds in HLE
r27
Better thread & memory errors debugging
Simplified the DSP Interpreter code
r26
Much work on GE
Made mult instruction work again using the non-C89 method (to be fixed)
Fixed mounting PBP's directory
r25
Finally fixed all tabs for real
r24
Fixed more HLE functions in callbacks, memory (partially, missing alloc), IO
(missed one in last commit)
r23
Finished fixing Semaphore, Thread and partially IO (missing things in metafs)
r22
Added debug for memory errors (writes the last instruction)
Fixed all semaphore functions
Finally fixed all the tabs
r21
Fixed Makefile — missing -lncurses
r20
Woops, added log.c
r19
Added Mingw32 Makefile
r18
Fixed compilation in -pedantic
Fixed for Windows
Reorganized logging — now -d (ncurses debugger) and -lLVL (debug level) works
perfectly, with or without -DNCURSES
Fixed tab => 4 spaces and spaces after commas (mostly for logging)
Updated --help
Added a few HLE functions
Maybe some other minor changes
r17
Fixed portability for win32 (tested with mingw32 and wine)
Fixed leaks
Various clean up
Added lv.s VFPU instruction
Fixed jumping to too big addresses
r16
* NID Checker added
* Fixed splitpath
* Added missing sceImpose files
* Updated README
r15
Added some instructions debugging
Added pref instruction (the 'hit in wipeout') (but not implemented)
Added a lot of HLE functions & NID
r14
Some fixes in I/O, rendering, some syscalls added, added 'p' key in ncurses
debugger to run the program (SLOW), and various other fixes

Download: YAUPSPE r38
Source:Here