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226 Commits

Author SHA1 Message Date
Lior Halphon f64da1864f APU glitch: When turning the APU on while DIV's bit 4 (or 5 in double speed mode), the first DIV/APU event is skipped. 2018-06-09 15:11:20 +03:00
Lior Halphon f1dfa2a1bc More sensible implementation of the STAT interrupt. 2018-06-04 02:07:38 +03:00
Lior Halphon 855ffb490a A HBlank interrupt cannot occur in the last M-cycle of HBlank. Correct emulation of STAT access conflicts on the CGB (Test: CPU-E, single speed only). Fixes a minor graphical glitch in Pokémon Puzzle Challenge. 2018-05-25 23:42:36 +03:00
Lior Halphon 1fcde88d8a Improved accuracy of the halt bug 2018-05-12 22:13:52 +03:00
Lior Halphon af3554c1d1 More accurate emulation of the LYC register and interrupt. (Still not perfect on a CGB) 2018-04-27 13:40:39 +03:00
Lior Halphon d667d87bbe Refactor CPU code so handling access conflicts is possible 2018-04-14 13:25:55 +03:00
Lior Halphon f1ec42d4ba H/GDMA was 4 times faster than it should have been. Made it also more accurate. Fixes #56 2018-04-13 14:41:39 +03:00
Lior Halphon fed2556fc3 More reasonable implementation of sprite timings 2018-04-07 03:00:26 +03:00
Lior Halphon 0751eae90b Moved the fetcher state machine to another function 2018-04-06 19:29:49 +03:00
Lior Halphon 0461fb5b2a Simplified FIFO logic 2018-04-06 19:11:48 +03:00
Lior Halphon 9aadc80f75 Implemented some obscure PPU rendering quirks, verified some timings 2018-04-05 15:33:21 +03:00
Lior Halphon ec64c041ab The OAM interrupt is internally implemented differently from the other 3. Fixed the stat_write_if tests, relates to #54 2018-04-01 21:45:56 +03:00
Lior Halphon 73dc3560a5 Mode 0 interrupts do not occur in the glitched mode 0 of the first line 0. The extra OAM interrupt bug also affects DMG. 2018-03-31 13:18:02 +03:00
Lior Halphon 9811dceca1 Emulate another OAM timing quirk; a sprite at x = 0 has extra penalty if SCX is not 0. Fixes intr_2_mode0_timing_sprites_scx*_nops, affects #54 2018-03-30 17:06:27 +03:00
Lior Halphon 2c44ffbe39 More accurate fetcher penalty emulation, fixed intr_2_mode0_timing_sprites_nops, affects #54 2018-03-30 02:53:49 +03:00
Lior Halphon 96063fb0da Fixed Windows build, added Unicode support in Windows. 2018-03-28 21:59:27 +03:00
Lior Halphon 0e3d2770d9 Properly handle cases where an object’s X position is modified between the OAM mode and rendering mode 2018-03-27 22:13:08 +03:00
Lior Halphon 4986930511 Mostly complete emulation of the OAM bug. Passes oam_bug-2. 2018-03-27 15:46:00 +03:00
Lior Halphon 04bfc89816 Cycle accurate OAM search mode 2018-03-23 19:07:14 +03:00
Lior Halphon 3883b7d86a Merge branch 'master' into timing 
# Conflicts:
#	Core/display.c
#	Core/z80_cpu.c
 2018-03-19 23:46:33 +02:00
Lior Halphon b50c97f4a7 Prevent starting HDMA in the middle of an instruction, making both the CPU and DMA access memory at the same time. Closes #47 2018-03-19 20:01:31 +02:00
Lior Halphon c267ad00b5 Goodbye 2018-03-09 23:34:23 +02:00
Lior Halphon 9083e883fe CGB BG rendering 2018-03-09 18:52:36 +02:00
Lior Halphon a32f232bb1 Fixed OAM-window priority glitch, fixed OAM glitch in Prehistoric Man 2018-03-09 17:10:19 +02:00
Lior Halphon 3d1c8b50c4 OAM search and OAM timing in mode 3 2018-03-04 22:21:56 +02:00
Lior Halphon 476133abd0 The scrolled y value is cached and not recalculated 2018-03-03 20:51:38 +02:00
Lior Halphon 496c5589e6 Added window support 2018-03-03 19:36:21 +02:00
Lior Halphon 5ea33cc931 Cleanup 2018-03-03 19:05:29 +02:00
Lior Halphon b08f02c4f3 Rewriting the PPU rendering: T-cycle accurate background rendering. DMG only, CGB completely broken 2018-03-03 15:47:36 +02:00
Lior Halphon b702d56547 Merge branch 'master' into timing 
# Conflicts:
#	Core/display.c
#	Core/z80_cpu.c
 2018-03-01 21:22:33 +02:00
Lior Halphon 90a943d05a Emulate an HDMA quirk required to properly emulate Aevilia 2018-02-25 22:32:41 +02:00
Lior Halphon ef670986c6 Rewrote PPU (currently only emulates DMG correctly) to use the new timing mechanism. Removed “future interrupts” (No longer required because SameBoy is now T-cycle based) 2018-02-25 00:48:45 +02:00
Lior Halphon 42ab746a66 Starting to remove the delayed interrupts hack – done for timer interrupt, broken for display interrupts 2018-02-23 15:33:44 +02:00
Lior Halphon c48097a484 Convert div counter to the SM mechanism 2018-02-23 13:16:05 +02:00
Lior Halphon 9802ca41dd Components not affected by CGB’s double speed mode now operate in 8MHz mode to theoretically make advance_cycles(gb, 1) safe. 2018-02-20 21:17:12 +02:00
Lior Halphon afcc66fb3c Added CPU under/over-clocking support in Core, add under-clocking hotkey in the Cocoa port, allow modifier keys to be configured as input keys in Cocoa. 2018-02-10 23:30:30 +02:00
Lior Halphon 1c61b006ba Added rewinding support to the core and the Cocoa frontend 2018-02-10 14:42:14 +02:00
Lior Halphon 95234036bb Added return value to GB_run API. 2018-01-31 15:18:04 +02:00
Lior Halphon 27b5718b07 Merge branch 'master' into libretro_core 2017-10-12 22:50:02 +03:00
Lior Halphon a753e00b59 Added direct_access interface to interrupt_enable/IE register 2017-10-12 22:49:39 +03:00
Lior Halphon 40e4f93637 Replaced libretro specific code with a generic API 2017-10-12 22:06:01 +03:00
Lior Halphon 441781cbe9 Libretro .o files are now in the build/obj folder and are suffixed with _libretro (since they have different compilation flags). This also lets us rename gbmemory.c/h back to its original name. 2017-10-12 19:42:30 +03:00
Lior Halphon 9615ca6fa6 Merge pull request #14 from libretro/master 
libretro core
 2017-10-12 18:29:26 +03:00
Lior Halphon 65dd02cc52 Added 3 color correction profiles, added color correction setting to Cocoa GUI, improved cross-platform and cross-frontend save-state compatibility 2017-10-12 17:22:22 +03:00
twinaphex a7db98c22e Memory needs to be uniquely named for Android 2017-10-09 11:36:55 -05:00
twinaphex d433cdf260 Add baked-in generated BIOS files 2017-10-09 11:36:23 -05:00
Lior Halphon 1804a5c8e6 Updated save struct version 2017-09-23 00:25:21 +03:00
Lior Halphon b9bdd6c49c Merge branch 'master' into new_apu 2017-09-10 02:33:40 +03:00
Lior Halphon 1e90400916 Reimplemented delayed/future interrupts, currently correct only for CGB. 2017-09-09 13:32:12 +03:00
Lior Halphon 0f643e01b7 Removing the delayed interrupt mechanism, research is not complete enough for implementation 2017-09-08 12:58:35 +03:00
Lior Halphon ba0e66a5b7 Merge branch 'master' into new_apu 2017-09-04 18:41:13 +03:00
Lior Halphon 72d26c7046 Fixed obscure timer behavior, fixed regression in rapid_toggle.gb. 2017-09-04 18:40:43 +03:00
Lior Halphon 9bde98dede SCY latching is now correctly emulated, rendering mode timing refined. 2017-09-04 15:45:18 +03:00
Lior Halphon 54eb51d8db Refined timer interrupt timing 2017-09-02 22:08:20 +03:00
Lior Halphon e7d5cdbb42 Merge branch 'master' into new_apu 2017-08-20 01:37:33 +03:00
Lior Halphon cbbaf2ee84 Refined Window behavior once more, Fixes #12 (While not breaking Donkey Kong or 007) 2017-08-20 01:34:12 +03:00
Lior Halphon d65c2247e5 Added channel 1 and 2, fixed accuracy issues with channel 3 2017-07-27 23:11:33 +03:00
Lior Halphon a19ee1e5e0 2MHz audio downscaling support. Implemented NR50 and NR51. 2017-07-21 23:17:48 +03:00
Lior Halphon baccf336d7 Complete rewrite of the APU. Channel 3 is complete and passes all the relevant tests from blargg’s suite, as well as PCM34-based tests. Actual sound output is basic and limited, though. 2017-07-21 19:06:55 +03:00
Lior Halphon c4ccbd5cce Improved serial interrupt timing, fixes boot_sclk_align. 2017-06-23 17:58:04 +03:00
Lior Halphon efbc385417 Forgot to amend the last commit, it was broken. 2017-06-21 01:07:11 +03:00
Lior Halphon abf7efcc5a Fixed lcdon_write_timing. 2017-06-18 21:27:07 +03:00
Lior Halphon 86c9f9d89d Updated SameBoy to pass Mooneye-GB’s lcdon_timing test (on a DMG), as well as refined related CBG behaviors. 2017-06-17 22:17:58 +03:00
Lior Halphon babcc0a7dc Added API to load/save states from RAM 2017-06-14 00:23:34 +03:00
Lior Halphon a9475fbdf4 Refined the behavior of the last fix on a DMG. 2017-06-03 20:06:52 +03:00
Lior Halphon d72807dd67 Implemented LCD first-frame-skip behavior, fixes a visual glitch in Pokémon Pinball 2017-06-03 16:42:42 +03:00
Lior Halphon 86332d0311 Modifying WX and WY outside of VBlank is now more accurate, but still requires more research. Closes #6. 2017-05-12 19:33:42 +03:00
Lior Halphon 00623d4eea - Added audio supersampling support to greatly improve audio quality. 
- Fixed a bug where low sampling rate or disabled sound resulted in wrong APU behavior.
- Added API to get the current number of pending samples.
- This change broke save state compatibility with v0.8 and older
Closes #8.
 2017-05-12 17:11:55 +03:00
Lior Halphon b858f17425 Added the GB_run_frame API; closes #5. 2017-04-25 00:19:10 +03:00
Lior Halphon 22d3510dde Added LCD command to the debugger 2017-04-22 14:55:17 +03:00
Lior Halphon c766704267 More accurate FPS capping that tracks time correctly even when the screen is off. Should also support restarting the LCD during blank to increase FPS to 63. 2017-04-21 16:00:53 +03:00
Lior Halphon fb55c35f87 New APIs, Document.m no longer requires GB_INTERNAL, fixed a bug where the sprite viewer showed incorrect sprites for some CGB exclusive games. 2017-04-19 23:26:39 +03:00
Lior Halphon 3feaeb153e New turbo related APIs, Quick Look no longer requires GB_INTERNAL 2017-04-19 21:55:58 +03:00
Lior Halphon a925ef130d Stabilizing API: New joypad, debugger and reset APIs; internal APIs and direct struct access are no longer available without defining GB_INTERNAL. The SDL port uses the new “public” APIs, as well as most of the non-debug Cocoa code. 2017-04-17 20:16:17 +03:00
Lior Halphon 3d99773ddb Changed how the Cocoa port initializes GB_gameboy_t 2017-02-24 15:14:00 +02:00
Lior Halphon 421d3b27f5 Correct emulation of HUC1 banks higher than 0x1F 2017-02-16 21:07:35 +02:00
Lior Halphon 527ae01e0e Printer API, compression not supported yet 2017-01-13 22:20:11 +02:00
Lior Halphon 22c34e1095 Serial API 2016-11-12 01:58:53 +02:00
Lior Halphon 47aaf44017 Rumble API 2016-10-22 15:37:03 +03:00
Lior Halphon 2d51d13479 Various optimizations 2016-10-22 02:18:29 +03:00
Lior Halphon 11f8c41305 Basic HUC3 support 2016-10-17 18:51:43 +03:00
Lior Halphon ab5f66795a Gameboy Camera API 2016-10-02 17:14:58 +03:00
Lior Halphon b3b041a151 Basic GB Camera support (Emulate only MBC, enough for the ROM to boot). 2016-10-02 03:40:11 +03:00
Lior Halphon 9b71454f07 Basic HUC1 support (Emulated as MBC1) 2016-10-02 02:15:03 +03:00
Lior Halphon 258500bda3 Merge branch 'master' into rateless_apu 2016-09-23 18:53:38 +03:00
Lior Halphon 0991705379 Refined HALT bug behavior, fixed Robocop 2016-09-22 01:51:09 +03:00
Lior Halphon 252439c1af Fixed a deadlocking race condition that might happen when reading APU memory in the hex viewer 2016-09-21 01:59:43 +03:00
Lior Halphon f88c9d299b Merge branch 'master' into rateless_apu 2016-09-20 20:05:03 +03:00
Lior Halphon f46414b7b1 Updated struct version :( 2016-09-20 20:04:38 +03:00
Lior Halphon 71d4ba21f2 Added a tick-counting debugger command 2016-09-16 11:58:31 +03:00
Lior Halphon b95860c034 Making the APU independent of sample rate 2016-09-13 16:55:26 +03:00
Lior Halphon 62ecadeb57 Fixed another reset-while-debugging deadlock in Cocoa 2016-09-07 00:37:11 +03:00
Lior Halphon 603b8969ab Correct (disconnected) serial emulation. 2016-09-06 13:13:14 +03:00
Lior Halphon a6c5a8fdaa Fixed a bug that caused the Cocoa port to freeze sometimes if the emulator was reset while debugging. 2016-09-03 13:34:49 +03:00
Lior Halphon a746c726ee Added basic automatic ROM tester 2016-09-03 03:39:32 +03:00
Lior Halphon ee4907949b Support for RTC latching. Fixes #4. 2016-08-21 22:33:57 +03:00
Lior Halphon 806d0775a4 Added backtrace command to debugger 2016-08-09 22:48:53 +03:00
Lior Halphon 85a33ed8ef Emulating DMA delay correctly 2016-08-06 14:24:43 +03:00
Lior Halphon 8dd5462525 Correct DMA timing 2016-08-06 13:57:38 +03:00
Lior Halphon 0f98ac5ff9 Emulate TIMA reloading 2016-08-06 13:56:29 +03:00
Lior Halphon 55cbe5d4d0 Accuracy improvements to timers 2016-08-06 00:24:12 +03:00
Lior Halphon d098458ee4 Major improvements to accuracy: Fixed instruction timing, DMA timing, and IO reg masking. Passes most of mooneye-gb acceptance tests. 2016-08-05 16:36:38 +03:00
Lior Halphon 47e3300b66 Improved DMA accuracy, mooneyegb test ROMs no longer crash miserably. (but still fail) 2016-08-03 23:31:10 +03:00
Lior Halphon 185e71fe12 Improvements to IR API, since timing is VERY important 2016-07-21 01:03:13 +03:00
Lior Halphon 1d35c04ab1 Infrared API 2016-07-18 22:11:18 +03:00
Lior Halphon aa6438fa06 Async debugger commands 2016-07-18 00:46:45 +03:00
Lior Halphon e20e81befd Symbol support in the expression evaluator 2016-07-15 14:31:27 +03:00
Lior Halphon 65f37bccbd Initial 25-bit debugger values support 2016-07-14 21:01:45 +03:00
Lior Halphon d49404d248 Debugger can now read .sym files, and display them. (No expression support yet) 2016-07-13 23:00:50 +03:00
Lior Halphon bd7f8f2555 Support for an alternative MBC1 wiring, should solve most N-in-1 carts (Issue #3) 2016-07-09 19:25:25 +03:00
Lior Halphon c6bafe3fc3 Rewrote MBC support 2016-07-09 17:34:55 +03:00
Lior Halphon 78a809795e Renaming MBC constants 2016-07-09 14:45:25 +03:00
Lior Halphon de4983099a Added (conditional) r/w watchpoints. Fixed a bug where breakpoint condition syntax is not checked. Added != operator. 2016-07-07 00:29:25 +03:00
Lior Halphon 19aea4096b Added condition breakpoint. Fixed a possible crash when deleting a breakpoint. 2016-07-01 18:24:21 +03:00
Lior Halphon 70bd90740a Mass name and type changes. Save states are now compatible between 32- and 64-bit systems. Maybe. 2016-06-18 20:29:11 +03:00
Lior Halphon 8153b765a2 General cleanup. Minor fixes to LCD Controller accuracy. 2016-06-12 19:39:05 +03:00
Lior Halphon d7d8da3fa9 More accurate emulation of the SCX register 2016-06-11 17:58:00 +03:00
Lior Halphon b7e999b242 Modified saved data to be more future-compatible. 2016-06-11 17:49:42 +03:00
Lior Halphon aca5873de2 More accurate STAT interrupt. This fixes Altered Space and partially fixes Pinball Deluxe. It breaks GBVideoPlayer, however. 2016-06-10 16:31:57 +03:00
Lior Halphon 6bc64a9902 Added stereo support. Correct some PCM register behavior. 2016-06-10 15:28:50 +03:00
Lior Halphon 7dc575d01e Fixed a bug where audio channel 3 was playing silently instead of being muted. 2016-04-16 14:08:30 +03:00
Lior Halphon 8dd1b3c854 Added (experimental) stack-leak and stack-overflow detection command to the debugger. 2016-04-10 23:22:54 +03:00
Lior Halphon 1069637e45 Added support for multiple breakpoints 2016-04-07 00:25:41 +03:00
Lior Halphon 3e135a7c00 More accurate emulation of the DMG-emulation-mode registers. 2016-04-05 23:21:51 +03:00
Lior Halphon b7555e9976 Correct OAM interrupt behavior 2016-04-02 16:29:27 +03:00
Lior Halphon f1e9623371 Initial public commit 2016-04-01 21:27:01 +03:00