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283 Commits

Author SHA1 Message Date
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