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810 Commits 1 Branch 122 Tags 59 MiB
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49 Commits

Author SHA1 Message Date
Lior Halphon dbc338a887 Compensate for prefetch in DIV’s initial value 2018-09-15 00:47:26 +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 be9df4d658 Added mechanism to handle MMIO read/write conflicts. Fixes #65 2018-04-14 17:57:00 +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 c7ca786e77 Attempt to fix building using MINGW. Affects #55 2018-03-29 21:27:19 +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 c11af7ea26 Fix CGB timings 2018-03-23 12:58:51 +03:00
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 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 95234036bb Added return value to GB_run API. 2018-01-31 15:18:04 +02:00
Lior Halphon 6c97bb9052 Accidentally reversed ifdef condition 2017-10-13 17:28:32 +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
twinaphex aeea20ae9d Comment out nsleep 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
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 54eb51d8db Refined timer interrupt timing 2017-09-02 22:08:20 +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 65b0dcb2c5 Fixed a bug where SameBoy freeze for a moment after leaving turbo mode 2017-06-03 17:02:12 +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 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 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 399e88d5fe STAT timing and LCD interrupts rewritten, should be more accurate. 2017-02-19 02:22:50 +02:00
Lior Halphon 22c34e1095 Serial API 2016-11-12 01:58:53 +02:00
Lior Halphon 2d51d13479 Various optimizations 2016-10-22 02:18:29 +03:00
Lior Halphon f88c9d299b Merge branch 'master' into rateless_apu 2016-09-20 20:05:03 +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 603b8969ab Correct (disconnected) serial emulation. 2016-09-06 13:13:14 +03:00
Lior Halphon ee4907949b Support for RTC latching. Fixes #4. 2016-08-21 22:33:57 +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 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 aa6438fa06 Async debugger commands 2016-07-18 00:46:45 +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 0a09fba091 Correcting DIV and TIMA speed in CGB's double speed mode 2016-04-09 16:48:37 +03:00
Lior Halphon af7309b98d Moved the call to display_run to advance_cycle. 
This fixes games with delicate timings such as X/Ekkusu, that expect STAT to change *during* an opcode.
 2016-04-02 19:15:07 +03:00
Lior Halphon f1e9623371 Initial public commit 2016-04-01 21:27:01 +03:00