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726 Commits

Author SHA1 Message Date
Lior Halphon dc5cb71c22 Emulate CGB-C’s quirky LFSR function 2018-07-04 21:55:12 +03:00
Lior Halphon f3437d7cc0 Added todo 2018-07-03 23:47:50 +03:00
Lior Halphon b7b35c9b59 CGB-C timing 2018-07-03 22:25:09 +03:00
Lior Halphon 0a78f735d3 Fetcher Y is not cached on CGB-C 2018-07-03 22:14:53 +03:00
Lior Halphon 18ae18a95c LYC bit on CGB-C 2018-07-03 21:56:32 +03:00
Lior Halphon a7aabca618 Starting to add CGB-C support 2018-07-03 21:43:46 +03:00
Lior Halphon 47a74cb6c3 Randomize initial RAM values. Closes #82 2018-06-30 16:53:28 +03:00
Lior Halphon 2791775c5d Improvements to the `lcd` debugger command 2018-06-22 18:38:54 +03:00
Lior Halphon 6a7c084177 Fixed window regression 2018-06-18 21:57:01 +03:00
Lior Halphon d81c23cb16 Fixed HDMA regression 2018-06-16 23:52:24 +03:00
Lior Halphon 45c73e0175 Replaced the is_cgb bool with a more future compatible model enum. Removed the GB_init_cgb API and replaced it with an extended GB_init and GB_switch_model_and_reset APIs that now receive a model parameter. Increased the struct version. 2018-06-16 13:59:33 +03:00
Lior Halphon d95ad1ca54 SWAP was incorrectly disassembled as RLC 2018-06-09 15:39:40 +03:00
Lior Halphon 38c0cb3323 Typo 2018-06-09 15:12:42 +03:00
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 593cb7c107 Pixel accurate emulation of Prehistorik Man on a CGB-CPU-E 2018-06-08 18:44:03 +03:00
Lior Halphon ca01ff6f79 Finally, perfect emulation of the STAT write bug. 2018-06-08 17:16:15 +03:00
Lior Halphon 127324d2d6 Fixed regression involving rendering a window with negative X position. Closes #75 2018-06-07 23:08:46 +03:00
Lior Halphon f1dfa2a1bc More sensible implementation of the STAT interrupt. 2018-06-04 02:07:38 +03:00
Lior Halphon 0481ff9af5 Whoops 2018-06-04 01:52:24 +03:00
Lior Halphon 8721a48206 Fixed incorrect double speed behavior. 2018-06-03 00:36:05 +03:00
Lior Halphon 7003e31b7e Fixed a regression with STAT blocking. 2018-06-02 04:00:10 +03:00
Lior Halphon 80c92daacd Include cleanup (#73) 2018-05-27 19:30:23 +03:00
Lior Halphon 6532aef089 Correct emulation of the DMG stat write bug 2018-05-26 18:06:40 +03:00
Lior Halphon 9693b2de6a Refined the STAT bug behavior. Still not perfect. 2018-05-26 17:06:49 +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 249acb04cc Verified some timings on a DMG. Fixed palette write conflict timing (Although the fix kind of implies time traveling). Closes #65 2018-05-16 00:59:11 +03:00
Lior Halphon 562b43a7c5 Notes about the DMG wave-ram glitch 2018-05-15 23:02:07 +03:00
Lior Halphon 7df571d42f Less strict matching for `delete` and `unwatch`. Fixes #71 2018-05-13 23:17:23 +03:00
Lior Halphon 1fcde88d8a Improved accuracy of the halt bug 2018-05-12 22:13:52 +03:00
Lior Halphon 713dc02e46 A bit tacky, but T-cycle accurate emulation of LYC write conflicts on the CGB. Only single speed mode verified. Closes #54 2018-05-11 12:38:55 +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 0f8385a798 Refined line 153 behavior on a CGB. Verified on CGB-E. 2018-04-25 00:08:06 +03:00
Lior Halphon be9df4d658 Added mechanism to handle MMIO read/write conflicts. Fixes #65 2018-04-14 17:57:00 +03:00
Lior Halphon 2c6f7906c5 Make multi-byte opcodes trigger the OAM bug when they increase PC 2018-04-14 15:32:55 +03:00
Lior Halphon 84aa06aba5 Clean up OAM bug code 2018-04-14 13:35:16 +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
orbea 10dc12c502 Core: Fix libretro builds 2018-04-11 14:21:46 -07:00
Lior Halphon 89094950f8 Correct emulation of mapping both button sets. Fixes #60 2018-04-07 16:45:31 +03:00
Lior Halphon 5be2b3db29 It appears that OAM DMA blocks PPU access to OAM 2018-04-07 13:59:36 +03:00
Lior Halphon 0725b008be Further simplifications 2018-04-07 13:02:53 +03:00
Lior Halphon 097b768127 Update comments 2018-04-07 03:36:47 +03:00
Lior Halphon 9ce028056a Cleanup 2018-04-07 03:26:10 +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 cb01259073 Fixed #61 2018-04-06 11:37:49 +03:00
Lior Halphon 0c86ff1ee4 More CGB revision quirks 2018-04-06 04:00:37 +03:00
Lior Halphon a6ed2029b7 New information about PPU changes between CGB-B and CGB-E 2018-04-06 03:19:47 +03:00
Lior Halphon cc95c89d3c Surprise! The CGB has a 16-bit VRAM data bus 2018-04-05 16:15:51 +03:00
Lior Halphon 9aadc80f75 Implemented some obscure PPU rendering quirks, verified some timings 2018-04-05 15:33:21 +03:00
Lior Halphon d785e45308 More accurate emulation of LCDC.0 2018-04-05 12:27:01 +03:00
Lior Halphon d8e0683c35 Fixed a bug where skipping a sprite by modifying LCDC flags mid-scanline will disable sprites for the rest of the scalene. 2018-04-05 00:51:37 +03:00
Lior Halphon 5d63892949 T-cycle accurate timing of the extra OAM interrupt. Fixes vblank_stat_intr-GS, related to #54 2018-04-03 01:43:24 +03:00
Lior Halphon ba07e7ba85 Fixed a bug where 0:$dxxx reads/writes from the wrong bank in CGB mode. Made sure symbols are reset after reloading a sym file. 2018-04-02 19:57:39 +03:00
Lior Halphon e163026ca9 The STAT bug does not occur during the glitched mode 0 2018-04-02 01:05:32 +03:00
Lior Halphon 9339a6027f Slight refinement to the last fix 2018-04-01 22:20:26 +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 0d0d9ccdae Fixed a timer regression, fixes timer_if in DMG mode. Relates to #54 2018-03-31 15:52:31 +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 0a2d6e6dcb Fixed DMG timing regression 2018-03-31 12:21:34 +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 c7ca786e77 Attempt to fix building using MINGW. Affects #55 2018-03-29 21:27:19 +03:00
Lior Halphon a9fbbd3894 Merge branch 'master' of https://github.com/LIJI32/SameBoy 2018-03-29 21:07:04 +03:00
Lior Halphon e380a00b67 Fixed another timing regression with the CB opcodes 2018-03-29 21:06:53 +03:00
Kyle Swanson 7ffe132e79 fix typo 2018-03-28 21:38:48 -07:00
Kyle Swanson 7bfe5de9c7 chmod -x 2018-03-28 21:37:34 -07:00
Lior Halphon 96063fb0da Fixed Windows build, added Unicode support in Windows. 2018-03-28 21:59:27 +03:00
Lior Halphon 4cf78139a8 Fixed a bug where SameBoy freezes for a while after leaving turbo mode 2018-03-27 23:33:31 +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 0912a30bb9 Fixed a regression in dmg_sound-2 2018-03-27 21:04:55 +03:00
Lior Halphon f5493e023d Fixed a timing regression in the CB opcodes 2018-03-27 20:21:24 +03:00
Lior Halphon 7671648fca Simplified a function 2018-03-27 19:06:36 +03:00
Lior Halphon 7543461c24 Increasing PC in OAM triggers the OAM bug 2018-03-27 16:36:39 +03:00
Lior Halphon 4cbade9a88 Function name change 2018-03-27 15:55:12 +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 9093f22293 More accurate emulation of the OAM bug 2018-03-24 14:46:51 +03:00
Lior Halphon 5cb74fb684 Bugfix: turning the PPU off during OAM mode made the OAM bug persist while the LCD is off 2018-03-24 02:58:37 +03:00
Lior Halphon d343152fca Basic emulation of the OAM bug 2018-03-24 00:32:19 +03:00
Lior Halphon f8c6b9e7a0 Fixed the lcd command 2018-03-23 21:26:49 +03:00
Lior Halphon 4e3928df81 Turns out the behavior differs between DMG and CGB – in DMG mode, the objects enabled bit is checked before halting the FIFOs, meaning that disabled sprites do not affect Mode 3’s length on the DMG. 2018-03-23 20:01:27 +03:00
Lior Halphon 48a8db233d Refinement to the last fix 2018-03-23 19:54:11 +03:00
Lior Halphon e9eeace995 The object enabled bit is checked only when popping from the object FIFO. Objects affect timing even when disabled. 2018-03-23 19:50:19 +03:00
Lior Halphon 04bfc89816 Cycle accurate OAM search mode 2018-03-23 19:07:14 +03:00
Lior Halphon c11af7ea26 Fix CGB timings 2018-03-23 12:58:51 +03:00
Lior Halphon 3e5e17d1a3 Fixed CB [hl] opcodes timings 2018-03-23 12:35:37 +03:00
Lior Halphon 18e32d1755 Merge branch 'master' into timing 
# Conflicts:
#	Core/gb.c
 2018-03-22 22:37:35 +02:00
Lior Halphon 577e23925b Fixed sources-dmgABCXmgbS 2018-03-22 20:09:01 +02:00
Lior Halphon e9f243a913 Fix sprite priority 2018-03-21 00:02:35 +02:00
Lior Halphon cb33a5b25a Fix Aevilla 2018-03-20 20:08:29 +02:00
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 202eb2b5cc Fix stat_lyc_onoff 2018-03-18 20:32:19 +02:00
Lior Halphon 80b1275e07 Fix stat_lyc_onoff 2018-03-18 20:08:45 +02:00
Lior Halphon 0dc30f081a CGB halt interrupt timing 2018-03-17 23:21:14 +02:00
Lior Halphon 12ae5745db While fixing some rendering issues, this change was incorrect. 2018-03-17 21:04:48 +02:00
Lior Halphon 269bac4626 More CGB fixes 2018-03-17 20:34:55 +02:00
Lior Halphon 21b75494a2 More CGB fixes (currently on DMG-mode CGB is verified). Halt interrupt timing isn’t correct yet. 2018-03-11 00:17:57 +02:00
Lior Halphon 15b6c48d7c Fixed vblank_stat_intr-C 2018-03-10 15:52:22 +02:00
Lior Halphon c267ad00b5 Goodbye 2018-03-09 23:34:23 +02:00
Lior Halphon e8b107efdb In double speed mode, there are no quirks where IF and STAT don’t update together 2018-03-09 23:31:49 +02:00
Lior Halphon cb6bb0590e Starting to fix CGB timing quirks 2018-03-09 21:11:35 +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 1149c266cf More regression fixes, actually fix Pinball Deluxe this time 2018-03-08 23:22:03 +02:00
Lior Halphon 544ca2be4c Changing the timings of memory writes so they’re not effectively one T-cycle late. This screws up APU’s cycle accuracy for now. 2018-03-05 21:17:37 +02:00
Lior Halphon 88a11b891f Object rendering 2018-03-04 23:27:31 +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 518746f664 fixed rendering off by one 2018-03-03 19:52:48 +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 a67db0595b Fixed window behavior 2018-03-01 22:03:56 +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 94c6dbd281 Fixed ‘call’ instruction not being properly symbolicated. Closes #37 2018-03-01 21:12:37 +02:00
Lior Halphon 7248403be7 Fixed several DMG regressions, fixes Pinball Deluxe again 2018-03-01 00:12:04 +02:00
Lior Halphon fb03479a1f Added 16-bit dereferencing operator (`{address}`) to the debugger. Closes #38 2018-02-28 19:39:22 +02:00
Lior Halphon b02e40d5a2 Refinement to that last fix 2018-02-25 23:23:55 +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 5974092c94 Bugfix 2018-02-20 23:04:35 +02:00
Lior Halphon 56eac9f875 Removed some dead code from display.c 2018-02-20 21:23:27 +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 f79af39ea2 More accurate emulation of the APU’s analog characteristics 2018-02-16 18:01:50 +02:00
Lior Halphon fc35111ae7 Corrected the emulated DAC’s range 2018-02-16 01:26:37 +02:00
Lior Halphon 0c231db9e7 This is probably not correct (and makes no sense from an hardware design perspective), but this correctly emulates my analog test cases and fixes the pops introduced by the last commit. 2018-02-13 23:13:15 +02:00
Lior Halphon bfb37884e1 Inactive channels are not equivalent to channels with 0 volume. 2018-02-11 22:50:15 +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 0cbbaac490 Updated incorrect comment after verification 2018-02-10 19:50:42 +02:00
Lior Halphon 81f808e184 Refinements for the Wii U port 2018-02-10 15:02:22 +02:00
Lior Halphon 00c67f8842 Merge commit '217e9787bd640cbd1b8250e31c0064331ddc302f' 2018-02-10 14:49:57 +02:00
Lior Halphon 1c61b006ba Added rewinding support to the core and the Cocoa frontend 2018-02-10 14:42:14 +02:00
radius 217e9787bd change MAX_CH_AMP on WiiU 2018-02-07 15:28:30 -05:00
Lior Halphon 95234036bb Added return value to GB_run API. 2018-01-31 15:18:04 +02:00
Lior Halphon 09dd47c6de Fixed unintentional delay in NR50 and NR51’s effects 2018-01-19 19:56:39 +02:00
Lior Halphon 37906bcd1f Fixed sound pops in Super Mario Land 2. 2018-01-19 00:47:46 +02:00
Lior Halphon 0a76881eb6 Correctly emulating NRx4 effects on the sound envelop of the previously playing sound. Closes #19 2018-01-06 12:37:45 +02:00
Lior Halphon a20e8a8220 Fixed bug in NR42 write that also caused memory corruption 2018-01-06 12:17:06 +02:00
Lior Halphon a1af4c59ca Fixed NR51 volume levels (They’re 1-8, not 0-7) 2018-01-06 11:58:49 +02:00
Lior Halphon 2205493862 Bug fixes in the SDL port 2017-12-30 17:07:05 +02:00
Lior Halphon d3a2e49d38 Merge branch 'sdl_gui' into libretro_core 
# Conflicts:
#	Makefile
#	SDL/main.c
 2017-12-29 13:12:12 +02:00
Lior Halphon 61f9dbd95d Use SDL’s key mapping when available 2017-12-28 20:22:54 +02:00
Lior Halphon dc59fdf40e Highpass filter in SDL 2017-12-23 22:11:53 +02:00
Lior Halphon f0e772ca97 Fixed: Loading states in DMG mode results in a black screen 2017-12-22 21:58:31 +02:00
Lior Halphon 19c382c9e0 Fixed ei_sequence test 2017-12-03 21:07:34 +02:00
Lior Halphon 4b69331321 Merge branch 'master' into libretro_core 2017-10-16 20:49:33 +03:00
Lior Halphon e71154b7e0 Fixed set_color_correction breaking DMG’s palette 2017-10-16 20:48:39 +03:00
Lior Halphon 6c97bb9052 Accidentally reversed ifdef condition 2017-10-13 17:28:32 +03:00
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 6b71d1d477 “Baked” boot ROM is now auto-generated. 2017-10-12 21:52:51 +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 7c0ad24175 Added compilation flag to disable timekeeping for frontends that handle fps keeping on their own 2017-10-12 19:24:12 +03:00
Lior Halphon a50aa2486b Removed input callbacks when no debugger is included 2017-10-12 19:16:33 +03:00
Lior Halphon dcadfc37f4 Changed the way HAVE_DEBUGGER works and renamed it (so it’s on by default) to DISABLE_DEBUGGER. Fixes build break. 2017-10-12 19:05:27 +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
radius 8d691563c7 include unistd 2017-10-09 19:53:07 -05:00
radius 18b376ac5f Updates: 
-fix input descriptors
-implement savestates
-implement sram interface
 2017-10-09 14:21:32 -05:00
twinaphex a7db98c22e Memory needs to be uniquely named for Android 2017-10-09 11:36:55 -05:00
twinaphex b02aeab022 We don't need stdin 2017-10-09 11:36:54 -05:00
twinaphex 09f4edda57 Comment out debugger code - add HAVE_DEBUGGER ifdef 2017-10-09 11:36:53 -05:00
twinaphex aeea20ae9d Comment out nsleep 2017-10-09 11:36:53 -05:00
twinaphex 9f5b746e0b Fix compiler error 2017-10-09 11:36:53 -05:00
radius 765a072c73 this fixes fast forwarding but probably has to change to a proper fix 2017-10-09 11:36:24 -05:00
twinaphex 33a9c54842 Correct memset lines 2017-10-09 11:36:23 -05:00
twinaphex d433cdf260 Add baked-in generated BIOS files 2017-10-09 11:36:23 -05:00
Lior Halphon c1f27d7b27 Spacing 2017-10-02 22:59:03 +03:00
Lior Halphon d9b0576351 Emulation of NRX2-write glitches. Fixes Prehistorik Man audio. 2017-10-02 22:56:24 +03:00
Lior Halphon 78446f0ed4 Fixed several memory leaks (mostly in Cocoa port debugging utils) 2017-09-27 22:09:26 +03:00
Lior Halphon 7a41a9b417 Refined OAM interrupt timing. Fixes Pinball Deluxe in DMG mode; closes #1. 2017-09-23 21:08:05 +03:00
Lior Halphon 1804a5c8e6 Updated save struct version 2017-09-23 00:25:21 +03:00
Lior Halphon 67f1566b5e Minor refinement to sweep 2017-09-23 00:23:02 +03:00
Lior Halphon e0a6edac35 Setting sweep period to 0 cancels pending calculate event 2017-09-22 14:53:24 +03:00
Lior Halphon 2ffce49e16 Minor bugfixes related to sweeping 2017-09-22 14:39:39 +03:00
Lior Halphon 75db33559a Current sample index (Channel 1 and 2) is only reset after turning the APU off 2017-09-22 02:25:06 +03:00
Lior Halphon 8f4cd5c412 Corrected behavior for channel 1 and 2 restart 2017-09-22 02:04:29 +03:00
Lior Halphon 882b141478 Fixed dmg_sound-1 2017-09-21 18:32:21 +03:00
Lior Halphon 2ca550273a Fixed dmg_sound-5 2017-09-21 18:18:10 +03:00
Lior Halphon d3c15ef6ca Fixing APU bugs, one at a time: Blargg’s dmg_sound 8.2 2017-09-21 14:52:09 +03:00
Lior Halphon 02ac609f3c Merge branch 'master' into new_apu 2017-09-20 16:16:05 +03:00
Lior Halphon be038dc8e7 Refinement to the last fix 2017-09-20 03:08:54 +03:00
Lior Halphon 57e7782ac4 Interrupt servicing is now more accurate. Fixes mooneye-gb’s ie_push (all models) and Pinball Deluxe (!!!) for CGB mode 2017-09-20 02:49:45 +03:00
Lior Halphon 09b7e2fff4 Fixed a bug in scx_delay’s calculation 2017-09-11 23:56:35 +03:00
Lior Halphon b9bdd6c49c Merge branch 'master' into new_apu 2017-09-10 02:33:40 +03:00
Lior Halphon 14f267b4fa Another whoops 2017-09-09 19:31:05 +03:00
Lior Halphon 02841ddde6 Whoops 2017-09-09 16:55:55 +03:00
Lior Halphon 026baddbab Implemented delayed/future interrupts for DMG hblank interrupt. Restores vblank_stat_intr-GS support. 2017-09-09 13:45:01 +03:00
Lior Halphon 1e90400916 Reimplemented delayed/future interrupts, currently correct only for CGB. 2017-09-09 13:32:12 +03:00
Lior Halphon 742c9e95d3 Updated previous timing improvements to correctly implement double speed behavior 2017-09-08 23:46:38 +03:00
Lior Halphon e5d354e896 Refined SCX’s effects on PPU timing 2017-09-08 23:02:24 +03:00
Lior Halphon 0f1fa3176f Refinements to LCD timing (breaks vblank_stat_intr-GS for now) 2017-09-08 12:59:57 +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 a1a13c61bf On CGB, the VBlank and STAT interrupts are “delayed” by one T-cycle (relative to IF) since they’re not aligned to a T-Cycle 2017-09-03 00:41:52 +03:00
Lior Halphon 0532d2a159 A test ROM I wrote seems to contradicts some of AntonioND’s findings regrading PPU timing in CGB mode. CGB mode now behaves like DMG mode until I figure out what caused the difference. 2017-09-02 23:51:02 +03:00
Lior Halphon 9b490396bb Fixed timing when turning the LCD display on during double speed mode 2017-09-02 23:26:45 +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 62878fdc7a More accurate div-event handling 2017-08-15 22:27:15 +03:00
Lior Halphon 8d011ca4b9 Accuracy improvements (Sweep) 2017-08-15 22:05:20 +03:00
Lior Halphon d04aaddcbd Added highpass filter 2017-08-15 21:59:11 +03:00
Lior Halphon ca59aca4a6 Fixed a bug where writing to NR52 affected channels 1 and 2’s duty pattern in DMG mode. Fixed NR43 being written to NR44 as well. 2017-08-13 20:26:35 +03:00
Lior Halphon 36943866e2 Better click prevention 2017-08-12 23:35:18 +03:00
Lior Halphon d43daed6a6 Merge branch 'master' into new_apu 2017-08-12 21:43:09 +03:00
Lior Halphon 7df4e56454 KEY1 is only writable in CGB mode; screen should be black is LCD is on while in stop mode. 2017-08-12 21:42:47 +03:00
Lior Halphon dba7370d6d Turns out APU signal is inverted. This fixes Perfect Dark’s audio. 2017-08-12 20:47:55 +03:00
Lior Halphon 688991f57f The volume envelopes and length controls are handled in different phases of the div-divider 2017-08-12 20:17:20 +03:00
Lior Halphon 4b8be255ce Fixed some channel 4 delays, documented a not currently emulated timing quirk. 2017-08-12 19:50:39 +03:00
Lior Halphon 066efab985 In DMG mode, the length registers are not affected by turning the APU on and off. Why? Why not! 2017-08-11 22:23:03 +03:00
Lior Halphon 0e22ad8eb1 Noise channel support 2017-08-11 17:57:08 +03:00
Lior Halphon 1a8bcd314d Accuracy improvements to sweeping (Still not complete though, more research needed) 2017-08-10 19:42:23 +03:00
Lior Halphon ab5611119a Accuracy improvements, especially to the length control 2017-08-02 21:14:23 +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 2936f7fa57 Fixed channel 3 counter behavior, verified with new tests. The DIV register ticks the APU at 512Hz. 2017-07-22 19:51:11 +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
nattthebear eb7492c6c6 Fix undefined behavior (sequence point modification). GCC 4.6.4 compiles the code incorrectly without this fix. 2017-07-16 21:08:07 -04:00
Lior Halphon c4ccbd5cce Improved serial interrupt timing, fixes boot_sclk_align. 2017-06-23 17:58:04 +03:00
Lior Halphon c59272d46d Misc minor fixes, fixes several Mooneye-GB tests 2017-06-21 20:39:23 +03:00
Lior Halphon efbc385417 Forgot to amend the last commit, it was broken. 2017-06-21 01:07:11 +03:00
Lior Halphon aefca34b39 Improved MBC1 emulation. Fixed incorrect error messages. 2017-06-19 19:46:09 +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 144d0348dd Loading a save state creating during the effect of the previous MBC RAM bug will now attempt to fix the (broken) save state. 2017-06-08 23:26:04 +03:00
Lior Halphon c650337928 Fixed a bug where MBC RAM was no longer accessible after using the GB_reset functions 2017-06-08 22:48:23 +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 65b0dcb2c5 Fixed a bug where SameBoy freeze for a moment after leaving turbo mode 2017-06-03 17:02:12 +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 48acc09e91 Fixed the first item in the backtrace command 2017-06-03 16:19:39 +03:00
Lior Halphon 22ee6f6ca2 Fixed incorrect calculation in rendering timing. Fixes some of the issues in Prehistorik Man (and doesn’t break GBVideoPlayer) 2017-05-31 23:58:14 +03:00
Lior Halphon 9b89d76b3b Todo cleanup 2017-05-27 17:30:12 +03:00
Lior Halphon 096bd8ba94 Merge branch 'sdl2' 2017-05-27 12:30:25 +03:00
Lior Halphon a01ea29cf1 The first entry in the backtrace command is now in the same format as the rest 2017-05-26 20:21:39 +03:00
Lior Halphon 7d88ee00cc Added side view to Cocoa debugger 2017-05-26 20:16:19 +03:00
Lior Halphon ece1a11a23 SDL port: GUI-based error reporting, added help dialog (? on macOS, F1 on everything else) 2017-05-25 23:28:48 +03:00
Lior Halphon 4d5dc6a30e Cleanup 2017-05-24 21:44:43 +03:00
Lior Halphon bef89c6604 Upgraded Sameboy-SDL to SDL2, fixed Windows build, fixed save states in SDL, added reset and mute to SDL. The SDL port now renders via OpenGL. 2017-05-21 21:45:19 +03:00
Lior Halphon 6dd24e0733 Fixed hung note issue. Closes #7 2017-05-13 17:04:05 +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 0b1e2784cd Fixed saves and save states not working correctly on Windows 2017-03-24 14:39:39 +03:00
Lior Halphon 4bf391b1c8 SCX now effects Mode 3’s length. Fixes hblank_ly_scx_timing-GS 2017-02-25 23:30:31 +02:00
Lior Halphon 55e54d9499 Refinements to DMG STAT write interrupt bug. Fixes stat_irq_blocking on DMG. 2017-02-25 21:56:46 +02:00
Lior Halphon dbd04f09e8 HBlank HDMA should start instantly when starting during HBlank. Fixes 3-D Ultra Pinball. 2017-02-25 15:42:59 +02:00
Lior Halphon 724153e5ef Minimal attempt to be compatible with ROMs without correct headers 2017-02-24 15:14:47 +02:00
Lior Halphon 3d99773ddb Changed how the Cocoa port initializes GB_gameboy_t 2017-02-24 15:14:00 +02:00
Lior Halphon 319857db89 Fixed window behavior 2017-02-24 00:59:07 +02:00
Lior Halphon a420cfd798 HUC1’s RAM Enable only controls writing 2017-02-23 00:27:08 +02:00
Lior Halphon c5ce14dad1 Prevent Hblank HDMAs when the LCD is off 2017-02-21 22:33:09 +02:00
Lior Halphon f4a364c3db It seems like STAT’s LYC flag should be on while the screen is off. 2017-02-21 21:31:52 +02:00
Lior Halphon fed3b4f9cd Symbolicate LDH instructions 2017-02-21 21:31:22 +02:00
Lior Halphon aca7687edd Fixed a bug where LYC would be compared to the wrong value in the first cycle of a frame 2017-02-20 22:52:34 +02:00
Lior Halphon 91513ced22 Minor adjustment to LCD timing after enabling it. 2017-02-20 14:20:45 +02:00
Lior Halphon 399e88d5fe STAT timing and LCD interrupts rewritten, should be more accurate. 2017-02-19 02:22:50 +02:00
Lior Halphon 74d00b84b7 Treat STOP as a 2-byte instruction 2017-02-17 00:21:02 +02:00
Lior Halphon 6b1363e96e Fixed: Writing to 3XXX in MBC5 before writing to 2XXX no longer switches to the wrong bank. 2017-02-16 23:13:55 +02:00
Lior Halphon 421d3b27f5 Correct emulation of HUC1 banks higher than 0x1F 2017-02-16 21:07:35 +02:00
Lior Halphon 10ab2b4fe0 Fixed typo in the disassembler. 2017-02-16 20:51:32 +02:00
Lior Halphon 3fbc2c5716 DI should not be delayed. 2017-02-15 19:04:53 +02:00
Lior Halphon 4b6fda0cb6 Simplified HDMA and fixed the reading of the HDMA5 register 2017-02-08 21:58:15 +02:00
Lior Halphon d5c9a52337 Fixed: HDMA registers were not being updated during transfer 2017-02-07 00:24:26 +02:00
Lior Halphon eed8a06fc0 Several fixes to the help command 2017-02-04 19:00:31 +02:00
Lior Halphon 57c73c8a51 Fixed the help command for the disassemble command 2017-02-04 17:49:22 +02:00
Lior Halphon 517e72f92b Printer compression support 2017-01-20 23:00:02 +02:00
Lior Halphon 527ae01e0e Printer API, compression not supported yet 2017-01-13 22:20:11 +02:00
Lior Halphon cd382ef236 Fixed: Conditional read watchpoints crashed if the expression referred to the 'new' variable. Breakpoint and watchpoint conditions no longer trigger watchpoints. 2017-01-12 23:11:26 +02:00
Lior Halphon 8c14ec3268 An interrupt should also occur when using external clock. 2016-11-13 00:42:05 +02:00
Lior Halphon 22c34e1095 Serial API 2016-11-12 01:58:53 +02:00
Lior Halphon 388fb600de Added VRAM-debugging APIs, added VRAM viewer to Cocoa Port, fixed uninitialized VRAM, fixed memory viewer crash 2016-10-27 00:23:24 +03:00
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 1b8832a7ff Added disassemble command 2016-10-19 23:55:23 +03:00
Lior Halphon ee51dec20e Added modifier syntax to debugger: Changed watch's syntax, added format modifier to print/eval, added count option to examine command. 2016-10-19 23:48:46 +03:00
Lior Halphon edf93abff1 According to Mooneye's test ROMs, this behavior does not happen on a CGB 2016-10-18 00:31:07 +03:00
Lior Halphon 11f8c41305 Basic HUC3 support 2016-10-17 18:51:43 +03:00
Lior Halphon 9ca7540c69 Fixed dereferencing a non-banked address in the debugger 2016-10-14 01:19:39 +03:00
Lior Halphon fa35869bc4 Implemented DMG STAT-write interrupt bug, fixed Road Rash and Zero no Densetsu (These game do not work on CGBs) 2016-10-11 13:37:43 +03:00
Lior Halphon 76c795a966 Whoops. 2016-10-04 04:01:06 +03:00
Lior Halphon 90b7383df7 The camera's get pixel callback must return the same value for every coordinate until a new photo is taken. 2016-10-03 23:05:47 +03:00
Lior Halphon 2d06599a85 Edge enhancement support 2016-10-03 19:39:20 +03:00
Lior Halphon 8941504863 Refinements to camera support according to AntonioND's docs 2016-10-03 18:24:15 +03:00
Lior Halphon dd23fffcc0 Proper (I believe) emulation of most GameBoy Camera registers 2016-10-03 14:22:54 +03:00
Lior Halphon 2a84d62187 Forbid reading the image while the camera is busy 2016-10-03 01:29:54 +03:00
Lior Halphon 479a64dca6 Dither using a pattern, closer to actual GameBoy Camera 2016-10-02 23:36:20 +03:00
Lior Halphon de7c15fc68 Another camera API bugfix 2016-10-02 18:33:33 +03:00
Lior Halphon 9c68ac1419 Camera API bugfix 2016-10-02 18:14:05 +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 4904277f0d Corrected behavior of palette registers in DMG mode. This affected a broken Game & Watch Gallery 2 ROM that was previously used in the automation test. 2016-10-01 22:10:44 +03:00
Lior Halphon 80a1b12ae7 Added palette command to the debugger 2016-10-01 22:08:34 +03:00
Lior Halphon 4a2bec239a MBC2 RAM support was completely broken. 2016-09-30 23:34:06 +03:00
Lior Halphon 5565c096c7 Misc optimizations, especially for the tester 2016-09-30 01:09:44 +03:00
Lior Halphon 3ac3eccebb Bugfix: Multiple watchpoints did not work correctly and conflicted with breakpoints 2016-09-30 01:09:17 +03:00
Lior Halphon 258500bda3 Merge branch 'master' into rateless_apu 2016-09-23 18:53:38 +03:00
Lior Halphon 52ed2ca55e Corrected BG enable's behavior (Fixes visual glitch with Krusty's Funhouse) 2016-09-23 18:30:07 +03:00
Lior Halphon 42c01a21b2 Fixed crash when accessing MBC RAM on a cartridge that "has RAM", but it's 0-sized. 2016-09-22 01:52:40 +03:00
Lior Halphon 0991705379 Refined HALT bug behavior, fixed Robocop 2016-09-22 01:51:09 +03:00
Lior Halphon bc3cab7dfa Forbid pressing two opposing direction keys. Fixes Pocket Bomberman (U). 2016-09-21 02:15:02 +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 c40b86d4a4 Merge branch 'master' into rateless_apu 2016-09-21 00:23:59 +03:00
Lior Halphon 6f2b36cacb The HALT bug also happens on CGBs, regardless of DMG mode. 2016-09-20 22:59:25 +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 37e895352f Volumes no longer doubles 2016-09-20 19:58:30 +03:00
Lior Halphon f049284324 Emulate the HALT bug on a DMG 2016-09-20 01:22:21 +03:00
Lior Halphon 1a3a96762b CPU cleanup 2016-09-18 23:50:04 +03:00
Lior Halphon ed31358934 Forgot to emulate LCDC bit 0! 2016-09-18 21:00:05 +03:00
Lior Halphon fe51805ed7 Incorrect constant name 2016-09-16 18:24:38 +03:00
Lior Halphon f4c5cf20bc Cleanup of ret_cc 2016-09-16 13:27:32 +03:00
Lior Halphon 71d4ba21f2 Added a tick-counting debugger command 2016-09-16 11:58:31 +03:00
Lior Halphon 4beb946468 Slight APU optimization 2016-09-14 22:49:35 +03:00
Lior Halphon f274cbc2ec Read wave form while playing 2016-09-13 17:40:10 +03:00
Lior Halphon 594aea2d5a APU is now being run lazily 2016-09-13 17:33:48 +03:00
Lior Halphon eefc998e43 Removed for loop in APU 2016-09-13 17:06:35 +03:00
Lior Halphon ff7b8a6854 Removed doubles, reorganized code a bit 2016-09-13 16:57:16 +03:00
Lior Halphon b95860c034 Making the APU independent of sample rate 2016-09-13 16:55:26 +03:00
Lior Halphon 43be91f032 Slightly more readable code. 2016-09-13 01:20:18 +03:00
Lior Halphon 95cfb114a2 Properly setting MBC RAM 2016-09-10 13:25:18 +03:00
Lior Halphon 6d836b9f48 Fixed APU bug that prevented some games from working 2016-09-10 02:20:44 +03:00
Lior Halphon 62ecadeb57 Fixed another reset-while-debugging deadlock in Cocoa 2016-09-07 00:37:11 +03:00
Lior Halphon 01fc137256 Fixed an APU issue that might occur when having more than one GB_gameboy_t object 2016-09-06 22:36:16 +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 a2d77b1754 Warn about unsupported cartridges/MBCs 2016-09-03 04:00:37 +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 e7626535a8 Initial Windows support 2016-08-20 17:51:17 +03:00
Lior Halphon 0734e990b3 Memory viewer now has a Goto command, different memory space modes, and allows viewing/editing specific banks 2016-08-19 14:54:54 +03:00
Lior Halphon f9236d12bf Improvements to the help command and general debugger usability. 2016-08-13 22:52:41 +03:00
Lior Halphon 806d0775a4 Added backtrace command to debugger 2016-08-09 22:48:53 +03:00
Lior Halphon bebb5c7a41 Correctly emulating the unused OAM memory in DMG mode 2016-08-06 18:58:44 +03:00
Lior Halphon cc8664b0a8 Correctly emulating a disconnected serial cable 2016-08-06 18:57:33 +03:00
Lior Halphon af10e07ed7 Initing OBP0/1 correctly 2016-08-06 18:57:13 +03:00