The-Homebrew-Cloud/Genesis-Plus-GX
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1,652 Commits 1 Branch 0 Tags 271 MiB
02c9dac337
Commit Graph

387 Commits

Author SHA1 Message Date
ekeeke
02c9dac337 [Core/CD] added CD hardware model auto-detection when BIOS is loaded as normal ROM file 2023-11-26 17:41:12 +01:00
ekeeke
52b4f78b82 [Core/CD] improved accuracy of CDC transfer to Main-CPU & Sub-CPU (verified on real hardware, cf. Krikzz's mcd-verificator) 2023-11-26 16:27:15 +01:00
ekeeke
fcb6620202 [Core/CD] added limited support for LC89513K extended registers (only when Wondermega M2, X'Eye, CDX or Multi-Mega BIOS is detected) and improved accuracy of Main-CPU & Sub-CPU access to CDC registers (fixes mcd-verificator CDC REGS tests) 2023-11-25 19:09:03 +01:00
ekeeke
b330eb85cf [Core/CD] improved MAIN-CPU/SUB-CPU synchronization when reading CDC host data and CDC transfer status from MAIN-CPU (fixes MCD-verificator CDC INIT Test #4 and CDC DMA3 Test #2) 2023-11-19 16:18:38 +01:00
ekeeke
6669d25948 [Core/CD] fixed memory mode register bits masking when read from MAIN-CPU and SUB-CPU (verified on real hardware, cf. Krikzz's mcd-verificator) 2023-11-19 16:02:33 +01:00
ekeeke
6cc8bbc277 [Core/CD] added emulation of Word-RAM access limitations in 2M mode (fixes graphical issues in Marko's Magic Football) 2023-11-18 19:38:33 +01:00
ekeeke
9b0b8d3afc [Core/CD] minor optimization of Word-RAM switching in 1M mode 2023-11-18 18:01:01 +01:00
ekeeke
8169f02496 [Core/CD] MAIN-CPU/SUB-CPU synchronization code cleanup 2023-11-18 17:51:55 +01:00
ekeeke
6f0ac9a668 [Core/IO] improved Japanese Paddle emulation (fixes Paddle support on control port #2) 2023-11-10 15:21:11 +01:00
ekeeke
a42843bf6c [Core/Sound] updated Nuked OPN2 core to latest version (1.0.12) 2023-11-10 14:41:10 +01:00
ekeeke
8e02a430aa [Core/CD] fixed CDC DMA to PCM RAM when transfer length is not word-aligned 2023-11-10 14:25:32 +01:00
ekeeke
a2931d161f [Core/MS] added support for more Korean x-in-1 mappers (credits to Ben Sittler & Omar Cornut from smspower.org for mappers reverse-engineering and description) 2023-09-11 23:43:32 +02:00
ekeeke
5a3e18f71b [Core/CD] improved Sub-CPU BUSREQ status accuracy 2023-08-25 17:29:09 +02:00
ekeeke
7316507339 [Core/MD] fixed another potential regression with savestate support for games using SRAM bankswitching 2023-07-25 00:02:44 +02:00
ekeeke
091b4124a8 [Core/MD] fixed Sonic The Hedgehog 3 lock-on support regression introduced in 4bb149ba0b 2023-07-24 23:14:20 +02:00
ekeeke
83ab969f29 [Core/MD] added "Demons of Asteborg" and "Astebros" in internal mapper database (fixes Steam versions which incorrectly use Everdrive extended SSF mapper indicator in ROM header) 2023-07-01 15:34:52 +02:00
ekeeke
4bb149ba0b [Core/MD] fixed SRAM bankswitching for games also using ROM bankswitching (fixes Astebros) 2023-06-13 01:00:56 +02:00
ekeeke
95bde804a6 [Core/MD] fixed soft-reset in X-in-1 pirate games 2023-06-08 22:47:42 +02:00
Nicholas Hubbard
3bed408176
fix error in zstate comment (#509) 2023-06-04 17:44:14 +02:00
ekeeke
c4077c4f24 [Core/Misc] Fixed -Wmaybe-uninitialized warnings with GCC compiler 2023-05-20 19:44:57 +02:00
ekeeke
a7f42b438e [Core/CD] increased minimal latency (fixes BIOS freeze when CD latency is disabled in emulator settings) 2023-05-09 00:54:56 +02:00
ekeeke
b5f1027c15 [Core/CD] fixed CDD position reset when disc is stopped (fixes random freezes in Spiderman vs Kingpin when switching between audio tracks) 2023-05-07 14:46:23 +02:00
ekeeke
1db51e2c5f [Core/MS] simplified latest Korean x-in-1 mappers implementation 2023-04-07 09:06:42 +02:00
ekeeke
4a07f8a9f6 [Core/MS] added support for latest Korean x-in-1 mappers (credits to Ben Sittler and Omar Cornut at smspower.org for mappers reverse-engineering and description) 2023-04-06 01:00:40 +02:00
ekeeke
f0c8f83926 [Core/MD] improved Realtec mapper accuracy (verified on real cartridge hardware) 2023-03-20 00:26:37 +01:00
ekeeke
ef922735ff [Core/MD] improved detection of Quackshot REV A original ROM dump (512KB) 2023-03-12 18:51:24 +01:00
ekeeke
1bf6f70986 [Core/MD] fixed Realtec mapper behavior on soft-reset and with TMSS hardware 2023-03-12 18:27:34 +01:00
ekeeke
cc60ba57bf [libretro] fixed available system RAM size for SG-1000 games with extra on-board RAM 2023-03-11 14:23:31 +01:00
ekeeke
605a29d7bd [Core/Input] improved XE-1AP controller emulation (verified on real hardware) 2023-02-05 18:08:05 +01:00
ekeeke
a2380d84e0 [Core/VDP] fixed address/code potential corruption by one-instruction execution delay after HV interrupts activation (fixes #477) 2023-01-13 14:00:27 +01:00
ekeeke
70cfbd909f [Core/CPU] 
- fixed 68k timings of BCHG, BCLR, BTST Dn,#Imm and Dn,Dm instructions when bit number is less than 16 (cf. Yacht.txt)
- fixed 68k timings of CHK, TRAP, TRAPV, LINEA and LINEF exceptions (cf. Yacht.txt)
 2023-01-06 09:03:30 +01:00
ekeeke
350be7731c [Core/Sound] disable PSG output on Mark III hardware when FM output is enabled (fixes issue #474) 2022-12-18 14:49:34 +01:00
ekeeke
46652c7fd7 [Core/MD] fixed MegaSD audio sample counter still getting updated while audio playback is paused (fixes #471) 2022-11-28 01:11:13 +01:00
ekeeke
1925efe4d7 [Core/VDP] improved HBLANK flag timing accuracy (fixes #470) 2022-11-26 16:48:22 +01:00
ekeeke
1c972f5482 [Core/CD] improved GFX timing accuracy (fixes "Night Striker" crashing after completing a game) 2022-11-26 16:24:09 +01:00
ekeeke
6ec9ac2729 [Core/SG] added SG-1000 II hardware with 8KB RAM extension adapter in selectable hardware models (fixes #437) 2022-10-29 13:51:34 +02:00
orbea
0f9d57d6b8
Fix -Werror=strict-prototypes (#466) 
This will be required for upcoming gcc and clang versions.

Reference: https://archives.gentoo.org/gentoo-dev/message/dd9f2d3082b8b6f8dfbccb0639e6e240
 2022-10-11 23:10:06 +02:00
ekeeke
24b71ab2c2 [Core/MS] added missing GG-MS games in internal game database 2022-10-09 11:07:33 +02:00
ekeeke
ea8d299123 [Core/CD] improved GFX processing accuracy to halt it while Word RAM is allocated to Main CPU in 2M mode 2022-10-09 10:13:24 +02:00
ekeeke
dded47d5e7 [Core/VDP] added support for background color changes during HBLANK when display is disabled (fixes #462) 2022-09-19 14:11:16 +02:00
ekeeke
2d28c67316 [Core/VDP] added missing credits for enhanced 2-cell vscroll rendering mode 2022-09-19 14:03:44 +02:00
ekeeke
b7a9a27fb0 [Core/MD] reverted previous incorrect change in MegaSD ROM write mapper 2022-08-31 18:19:18 +02:00
ekeeke
f5f192fc0a Merge branch 'master' of https://github.com/ekeeke/Genesis-Plus-GX 2022-08-31 18:02:11 +02:00
ekeeke
eef172acf3 [Core/MD] reduced savestate size when both Mega CD and MegaSD hardware are detected (fixes savestates with MSU-MD games that have "SEGA MEGASD" in ROM header) 2022-08-31 18:01:39 +02:00
Kiri
e5f77f14b9
Enchanced per-tile vertical scroll (#453) 
* Enchanced per-tile vertical scroll implementation

* Comment cleanup
 2022-08-13 08:11:41 +02:00
ekeeke
47d20265c9 [Core/Sound] fixed MAME YM2413 core operator output when EG is off (fixes issue #448) 2022-08-07 10:13:10 +02:00
ekeeke
4ecd33f4cd [Core/CD] fixed 32x32 pixels stamp index masking during GFX operation (fixes #436) 2022-05-31 01:52:17 +02:00
ekeeke
e366ca817f [Core/CD] added setting to enable/disable CD access time simulation 2022-05-01 15:47:18 +02:00
ekeeke
f43a4a7312 [Core/MS] added support for new Korean xx-in-1 mapper (128 Hap, Game Mo-eumjip 188 Hap) 2022-04-24 19:18:30 +02:00
ekeeke
7d4ae7da0c [Core/CD] fixed byte access address range to Font Data registers 2022-02-26 10:26:12 +01:00