ekeeke
50dfa94a67
[Core/CPU] fixed 68k timing of BTST Dn,#Imm instruction (verified by Flamewing in original microcode)
2019-01-09 01:08:28 +01:00
ekeeke
49f5a227bd
[Core/CPU] fixed Z80 core compilation warnings (unused variable)
2019-01-09 01:07:19 +01:00
ekeeke
edf6abad3f
[Core/IO] added short description of I/O ports (credits to Charles MacDonald for original documentation)
2019-01-09 00:59:40 +01:00
ekeeke
0b75d4ba74
[Core/CD] improved accuracy of Word-RAM byte writes (verified on schematic)
2019-01-09 00:54:59 +01:00
ekeeke
e075526f71
[Core/MS] added Missile Defense 3D [Proto] to internal database
2019-01-09 00:52:45 +01:00
ekeeke
39c3c6634b
[Core/CD] improved CDD status codes description & added support for (unused ?) error request code
2018-08-31 01:52:31 +02:00
ekeeke
d539061d99
[Core/CD] added support for Wondermega & Wondermega M2/X'Eye specific fader hardware (fixes CD-DA issues and freeze when using Wondermega, Wondermega M2 or X'Eye BIOS)
2018-08-30 18:37:12 +02:00
EkeEke
d71a8a2fc5
Merge branch 'master' of https://github.com/ekeeke/Genesis-Plus-GX
2018-08-11 23:42:09 +02:00
EkeEke
ee4494a815
[Core/IO] improved 6-buttons controller emulation (fixes 'ToeJam & Earl in Panic on Funkotron')
2018-08-11 02:09:13 +02:00
Clownacy
7a4e30d27e
[Core/CD] fix libFLAC compilation on MinGW-w64
...
Without autotools, fseeko cannot be detected automatically, so we cheat
a little.
2018-07-09 18:53:09 +01:00
Vladimir Kononovich
191665c8d1
Visual Studio 2017 sdl2 solution.
2018-06-30 20:51:37 +03:00
EkeEke
724015c5a5
[Core/CD] fixed CHD data initialization (fixes potential crashes when loading non-CHD CD image files after 10MB ROM file)
2018-06-27 01:42:03 +02:00
EkeEke
ae28f87402
[Core/MS] improved region detection (fixes BIOS support with Japanese games)
2018-06-21 00:28:57 +02:00
nukeykt
3aae6e4f09
[Core/Sound] Nuked OPN2: removed discrete ym3438 core
2018-02-01 00:01:03 +09:00
nukeykt
06b3950d73
[Core/Sound] accurate YM2612/3438 status read emulation on invalid port
2018-01-29 13:24:13 +09:00
EkeEke
fee2bc8c28
[Core/Sound] added accurate YM2612 status & BUSY flag emulation for MAME core (verified on discrete and ASIC-integrated chips)
2018-01-07 16:44:14 +01:00
EkeEke
d0aa36acc3
[Core/CPU] improved 68K/Z80 synchronization
2018-01-07 16:24:28 +01:00
EkeEke
902dc4c4c0
[Core/Sound] added (optional) YM2612 DAC distortion emulation in MAME core & removed configurable YM2612 DAC resolution (deprecated)
2017-12-22 20:43:28 +01:00
EkeEke
b62ce884b8
[Core/Sound] added nuked YM3438 core to SDL port and fixed some GCC warnings
2017-12-22 20:37:58 +01:00
EkeEke
46f3e640e8
[Core/SG] improved SG-1000 cartridge memory mapping (fixes Safari Hunting crash when accessing unmapped ROM area)
2017-12-13 23:09:29 +01:00
nukeykt
eff16f5a81
[Core/Sound] Nuked OPN2: Minor PCM mode tweak.
2017-10-10 23:51:58 +09:00
ekeeke
5ec1cd099f
Merge pull request #184 from bkoropoff/overclock-tidy
...
[Core] Improved CPU overclock granularity and added (optional) sprite limits removal support (bkoropoff)
2017-10-10 10:46:16 +02:00
Brian Koropoff
fe21bb5950
Tidy up overclock code
...
Also use full available precision for overclock ratio.
2017-10-07 17:24:37 -07:00
EkeEke
5c7eb1a55d
[Core/Sound] fixed compilation warnings with Nuked core
2017-10-07 00:49:14 +02:00
nukeykt
64356591d6
[Core/Sound] Nuked OPN2: fix envelope generator increment calculation
2017-10-06 00:25:16 +09:00
Brian Koropoff
e0ef0902e9
Add option to remove per-line sprite limits
2017-10-04 22:24:31 -07:00
Brian Koropoff
f3e0641b1b
Allow more fine-grained overclocking
...
Some games can benefit from a little overclocking but start behaving
strangely at 2x. Make the internal overclock ratio a fixed point
number and add 3 fractional settings.
2017-10-04 22:07:45 -07:00
ekeeke
2345d98b69
Merge pull request #181 from libretro/master
...
[Core/CPU] add optional 68K and Z80 overclocking
2017-10-04 11:19:10 +02:00
Brian Koropoff
2135365d5c
Add experimental overclock option.
...
This reduces all cycle costs by half for the primary CPU. There
is a delay upon loading before overclocking is applied as a
workaround for some games that detect PAL/NTSC systems by counting
cycles in a frame at startup.
2017-10-03 16:46:17 -07:00
nukeykt
573120e4f6
Nuked OPN2: requested changes 2
2017-09-29 22:37:13 +09:00
nukeykt
405db5d9f4
Nuked OPN2: requested changes
2017-09-29 18:01:03 +09:00
nukeykt
51f802b2cc
Nuked OPN2: ASIC YM3438 & YM2612 emulation
2017-09-29 01:45:49 +09:00
nukeykt
27a77147aa
Nuked OPN2: optimize detune calculation
2017-09-28 19:54:12 +09:00
nukeykt
6a23a42540
Nuked OPN2: minor tweaks
2017-09-28 17:00:31 +09:00
ekeeke
e2774c7b8a
Update ym2612.c
...
[Core/YM2612] minor optimizations
2017-09-27 13:58:22 +02:00
nukeykt
eb457641a8
Nuked OPN2: Don't attack if key is off
2017-09-26 20:36:07 +09:00
nukeykt
13ab2aafbc
Nuked OPN2: Fix LFO PM
2017-09-26 19:23:43 +09:00
ekeeke
3d8bd155a7
[Core/Sound] fixed EG counter loopback behavior (verified on real YM3438 die by nukez)
2017-09-26 10:25:48 +02:00
twinaphex
accc1c030e
Use stdint.h instead of inttypes.h - fixes MSVC < 2010
2017-09-26 04:18:19 +02:00
twinaphex
ba28a28b7e
Fix Emscripten
2017-09-26 00:49:48 +02:00
ekeeke
3fc3a57b26
[Core/68k] fixed NBCD insruction when using register operand
2017-09-25 01:09:09 +02:00
nukeykt
1768a34144
Nuked OPN2: requested changes 3
2017-09-24 01:47:50 +09:00
nukeykt
757a6e0c1f
Nuked OPN2: requested changes 2
2017-09-23 21:17:05 +09:00
nukeykt
1c6fa9fdb6
Nuked OPN2: requested changes
2017-09-23 20:26:26 +09:00
nukeykt
0128f345b5
Add nuked opn2 as alternative core
2017-09-23 12:52:45 +09:00
EkeEke
00a79db64e
[Core/CD] fixed cooked Mode-1 (ISO) sectors access in CHD files
2017-09-23 00:14:43 +02:00
notaz
5d13ccbe3f
[Core/SVP] fix pointer arithmetic on 64bit ( #171 )
...
I don't want broken version of my code to linger around.
2017-09-21 09:24:50 +02:00
EkeEke
94103569ff
[Core/VDP] allow active screen width to be modified during first two lines (Bugs Bunny in Double Trouble)
2017-09-20 16:45:50 +02:00
EkeEke
527fd6ecd8
[Core/VDP] improved VDP status read timing accuracy (fixes 'Marvel Land' demo mode)
2017-09-20 10:53:08 +02:00
EkeEke
f6f4556533
[Core/Sound] fixed 3-Band EQ implementation
2017-09-19 15:26:50 +02:00
