Commit Graph

29 Commits

Author SHA1 Message Date
ekeeke31
f44d38b537 fixed YM2612 reset on "soft reset"
small optimizations & fixes in FIR resampler code
2010-01-27 07:20:44 +00:00
ekeeke31
2b78421402 [Core]
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* improved 68k accuracy (initial reset timing + auto-vectored interrupts handling).
* modified Z80 & 68k cores to directly use external cycle count instead of intermediate counters.
* improved Z80 & 68k cpu execution/synchronization accuracy, now use Master Clock as common clock reference.
* improved PSG & FM chips synchronization with CPU execution (fixed point precision).
* completely rewrote sound output processing & mixing: sound chips are now clocked with exact output frame rate
to ensure 100% smooth video & audio playback, with no lag or skipping, while still rendering an accurate number
of samples per frame. This will also make fast-forward implementation (video AND sound) more trivial.
* improved color accuracy in VDP highlight mode to match results observed on real hardware.
* improved sprites processing timing accuracy: fixes (un)masked sprites in Mickey Mania (3D level), Sonic 2 (VS mode).
* improved horizontal blanking & HINT/VINT occurrence timing accuracy, as measured on real hardware.
* improved H-Counter accuracy in 40-cell mode, as measured on real hardware.
* optimized Z80 bus status signals
* usual code cleanup

[GCN/WII]
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fixed ASNDLIB exit when returning to game
fixed audio/video startup sync
modified audio back-end engine according to new audio processing core (see above)
2010-01-24 11:41:53 +00:00
ekeeke31
46758ce339 improved audio accuracy (input samplerate is now adjusted according to emulated framerate) 2009-12-30 15:24:12 +00:00
ekeeke31
a2ece6f81b improved Pro Action Replay emulation (still not working completely)
added cycle-accurate YM2612 reset handler
some fixes in FIR resampler
2009-08-14 16:46:19 +00:00
ekeeke31
0d58ff65e0 fixed sound issues in PAL mode when HQ YM2612 is enabled (modified FIR resampler ratio)
fixed video glitches in games that switch video horizontal width.
fixed BIOS infinite loop on hard reset
2009-08-14 13:54:15 +00:00
ekeeke31
dbc4d02fea ~implemented faster/better FIR resampler, removed libsamplerate
~fixed some memory leaks with Blip Buffer
~reverted previous change regarding frame synchronization: always use VSYNC when switched to 60hz (fix video issues in interlace mode 2)
~optimized cell rendering (less byte swapping)
~fixed savestate file version checking
2009-07-22 17:25:41 +00:00
ekeeke31
1cfb7e6f44 +implemented Blip Buffer linear interpolation in SN76489 core
+optimized SN76489 core
+added configurable SN76489 Noise boost
+added savestate version check
2009-05-27 14:07:14 +00:00
ekeeke31
b08e66855a +added proper license/copyright stuff
~modified file headers
~separated GUI engine from menus
2009-05-13 14:26:55 +00:00
ekeeke31
99e00b8fe3 [~]fixed ym2612 context restore
[~]small fixes to SSG-EG emulation (should be finally fine !)
2009-02-28 17:49:31 +00:00
ekeeke31
4eb8d17acf [-]removed Gens YM2612 core support
[~]fixed YM2612 context restore 
[+]improved YM2612 emulation accuracy (BROKEN)
2009-02-25 16:53:28 +00:00
ekeeke31
6f65ac3f15 fixed audio/video synchronization, preliminary GX gui implementation 2009-02-22 19:57:41 +00:00
ekeeke31
43fd560e55 optimized some float/int conversions, added -fomit-frame-pointer flag 2009-01-28 16:43:15 +00:00
ekeeke31
e774dc03ae tiny emulation speedup (restored) 2009-01-06 19:07:41 +00:00
ekeeke31
0e86a15c09 fixed crash issue 2008-12-20 20:36:37 +00:00
ekeeke31
840a370418 new sync using audio DMA 2008-12-18 22:34:55 +00:00
ekeeke31
00a61b4762 code cleanup 2008-12-11 17:38:29 +00:00
ekeeke31
41ffdefb1d various modifications 2008-10-12 19:56:35 +00:00
ekeeke31
7b4ec49188 fixed some warnings in render.c, switched to -O3 optimization (no performance increase for Virtua Racing however), modified libsamplerate default when Virtua Racing is running to gain some fps 2008-09-25 17:53:44 +00:00
ekeeke31
deec7ecd2f adjuster HCOUNT/HINT timings, improved fast menu scrolling, removed unused SRC algorithms 2008-09-13 15:37:15 +00:00
ekeeke31
fbbd1d6057 improved YM2612 emulation 2008-09-11 16:15:58 +00:00
ekeeke31
189157a408 fixed audio buffer allocation, added icon for SDL/win32 version 2008-08-25 19:38:03 +00:00
ekeeke31
a5f6f5d9c2 moved FM timers back to integer, fixed libsamplerate warnings 2008-08-19 20:04:21 +00:00
ekeeke31
0db46554ef added libsamplerate support, improved zipped rom loading, improved SSG-EG support 2008-08-17 20:17:49 +00:00
ekeeke31
8a2d4a03ff added experimental resampling (Secret Rabbit Code) 2008-08-14 15:41:17 +00:00
ekeeke31
fb15609c9e restored from bountysource 2008-08-07 12:26:07 +00:00
ekeeke31
16cdbc33d2 added cycle accurate sample generation 2007-08-20 19:44:24 +00:00
ekeeke31
254124dbca 2007-08-20 09:43:42 +00:00
ekeeke31
59d5d78af5 2007-08-16 16:02:24 +00:00
ekeeke31
217ca8de3f 2007-08-10 20:34:06 +00:00