Commit Graph

372 Commits

Author SHA1 Message Date
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
ekeeke
7fe8d95ca1 [Core/CD] fixed Boot ROM level 4 interrupt vector upper word value 2022-02-25 16:45:39 +01:00
ekeeke
ee5b917c32 [Core/CD] disabled Boot ROM loading automatic detection when Mode 1 is enabled 2022-02-25 16:42:58 +01:00
ekeeke
58accf0689 [Core/CD] fixed Memory Mode, Timer and Font Color registers byte access at even address (verified on real hardware, cf. Krikzz's mcd-verificator) 2022-02-25 15:29:18 +01:00
ekeeke
4a899e8262 [Core/Sound] fixed edge case in MAME YM2413 core when Key-Off occurs with envelope already off 2022-02-13 23:16:44 +01:00
ekeeke
47dc5e1b61 [Core/Sound] fixed Nuked YM2413 core attack phase rates 11.1 to 11.3 (cf. https://github.com/nukeykt/Nuked-OPLL/issues/6) 2022-02-06 19:36:20 +01:00
ekeeke
e4c53348d9 [Core/Sound] fixed overflow bug in MAME YM2413 core when using attack rate 14.3 (introduced in previous commit) 2022-02-06 19:00:15 +01:00
ekeeke
236e783ec2 [Core/MS] fixed disabled slot returned value 2021-10-24 14:34:28 +02:00
ekeeke
068769a02e [Core/CD] added missing SUB-CPU address error exception configuration 2021-10-09 19:03:45 +02:00
ekeeke
c6d1e5ac38 [Core/CD] added optional (platform-specific) SUB-CPU address error exceptions emulation (currently activated for libretro & SDL Windows ports only) 2021-10-09 18:53:59 +02:00
ekeeke
9254c331d2 [Core/CD] added configurable CD-DA and PCM outputs mixing volume 2021-10-07 23:20:31 +02:00
ekeeke
8be7c0269b [Core/Misc] MSVC compatibility fixes (backported from libretro repository) 2021-10-05 19:40:08 +02:00
ekeeke
485358ed09 [Core/MS] added GG-MS games incompatible with EU/US Master System BIOS to internal game database 2021-10-04 23:42:36 +02:00
ekeeke
b82b02bae7 [Core/MS] added Street Battle (Proto) to Korean mappers database 2021-10-03 15:32:39 +02:00
ekeeke
c1b248c8a7 [Core/MD] added conditional support for libchdr before trying to load CHD file 2021-10-01 10:10:33 +02:00
ekeeke
83a225cd32 [Core/MD] added detection of CHD image files when loading MSU-MD (CD Mode 1) or MD+ (MegaSD) ROM files 2021-10-01 09:55:06 +02:00