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738 Commits

Author SHA1 Message Date
Lior Halphon
c74b39e712 The CPU core of the Game Boy is (most likely) called SM83 2019-01-12 00:42:16 +02:00
Lior Halphon
21d2a59a5f Fixed a very rare edge case where an interrupt occurs when SP=FF11 2019-01-12 00:39:24 +02:00
Lior Halphon
4e2b5bb336 Fix the GB_run_frame API in SGB mode 2019-01-11 21:53:21 +02:00
Lior Halphon
7b36ee10a4 Merge branch 'master' into sgb 2019-01-05 19:00:22 +02:00
Lior Halphon
ae959cd878 ATTR_LIN and ATTR_DIV 2019-01-05 18:59:50 +02:00
Lior Halphon
4051f190a5 Cache cycles_per_sample to avoid FP arithmetic 2019-01-01 00:42:40 +02:00
Lior Halphon
9d947c7ce6 Unroll some APU loops 2018-12-31 23:09:56 +02:00
Lior Halphon
af0430dbc5 Unroll some loops in PPU code, more efficient timer handling 2018-12-31 22:06:20 +02:00
Lior Halphon
21eb96a2f5 Joypad multiplayer support (Cocoa) 2018-12-15 18:55:41 +02:00
Lior Halphon
612cd07fb3 Fixed emulation of echo RAM 2018-12-12 23:44:00 +02:00
Lior Halphon
ea09dfc888 Fixed multiplayer SGB mode 2018-12-04 23:46:30 +02:00
Lior Halphon
b1a2e45168 Improvements to the SGB animation 2018-12-01 13:39:43 +02:00
Lior Halphon
6d28e74667 Color 0 must always be shared 2018-11-24 15:53:53 +02:00
Lior Halphon
4b93f89763 Correct emulation of color masks 2018-11-24 15:42:54 +02:00
Lior Halphon
389d8ae045 Halt the CPU while the SGB animation is playing 2018-11-24 13:34:07 +02:00
Lior Halphon
2d6d1e6325 SGB boot animation 2018-11-24 13:21:00 +02:00
Lior Halphon
b3166135eb Clean up that crashing mess I made 2018-11-23 19:59:15 +02:00
Lior Halphon
558f9b9bae Updated SGB border, add “2” to SGB2 2018-11-23 14:16:48 +02:00
Lior Halphon
67d52b78b6 Handling interrupted SGB commands 2018-11-17 12:26:07 +02:00
Lior Halphon
af5ef50cf9 Fixing default border 2018-11-17 01:39:38 +02:00
Lior Halphon
deb5e21842 More colorization commands 2018-11-17 00:44:18 +02:00
Lior Halphon
b698ce5d95 Correctly emulate SGB border color 0 2018-11-17 00:44:07 +02:00
Lior Halphon
e5e7ce8203 Basic colorization 2018-11-16 22:05:35 +02:00
Lior Halphon
d42cbcdee2 Palette transfer functions 2018-11-16 19:11:21 +02:00
Lior Halphon
91a3091b2e Build fix 2018-11-16 17:41:23 +02:00
Lior Halphon
2710939e1e That should be an inc file 2018-11-16 17:38:53 +02:00
Lior Halphon
595907cae2 Border fade animation 2018-11-16 17:36:21 +02:00
Lior Halphon
69ac36cca1 Add default SGB border 2018-11-16 17:22:57 +02:00
Lior Halphon
398148f7ea Basic SGB border support 2018-11-16 16:04:40 +02:00
Lior Halphon
382d9f8898 MASK_EN support 2018-11-16 12:42:52 +02:00
Lior Halphon
2f2b792edf SGB save states 2018-11-16 01:53:01 +02:00
Lior Halphon
634a54c046 SGB resolution support (Cocoa only so far) 2018-11-15 00:21:21 +02:00
Lior Halphon
6ba5cfbeef Support for multi-packet SGB commands 2018-11-13 23:45:26 +02:00
Lior Halphon
7735d638c6 Multiplayer SGB APIs/SGB detection 2018-11-12 00:37:06 +02:00
Lior Halphon
5c581651ce Handle the SGB header commands, disable SGB functions if needed. 2018-11-11 22:50:00 +02:00
Lior Halphon
44891d5c4a Initial code to support SGB, command “parsing”, replacement SGB boot ROM 2018-11-11 01:16:32 +02:00
Lior Halphon
94136f5741 Adjust DAC attributes to fix LADX’s crackling audio (Fixes #125) while keeping Cannon Fodder’s buzzing reasonable (Proper audio measurements still required) 2018-11-10 19:14:18 +02:00
Lior Halphon
a39b314378 Fixed silly APU regression (Noise volume envelope ran too fast) Fixes #121 2018-11-03 14:37:19 +02:00
Lior Halphon
c9d6a1381f Cross emulator compatibility with RTC saves 2018-11-03 01:31:14 +02:00
Lior Halphon
64922fff4b Fixed a bug where channels 1 and 2 would start playing earlier than they should have if NRx4 was written to twice. Fixes #86. 2018-10-29 00:44:43 +02:00
Lior Halphon
3035f43428 Emulation of DAC charging, Fixes #46, #85, #88 and #89 2018-10-19 23:53:01 +03:00
Lior Halphon
4276549acd Research notes TODOs 2018-10-19 01:02:27 +03:00
Lior Halphon
324201f336 Correct emulation of switching the DACs on and off. Fixes #100 and #87 2018-10-17 20:35:29 +03:00
Lior Halphon
e9b78b6370
Merge pull request #114 from RobLoach/patch-2 
Fix control reaches end of non-void function
 2018-10-12 17:10:11 +03:00
Rob Loach
2da7a3f7fb
Fix the return value of read_lvalue to be 0 2018-10-12 10:09:30 -04:00
Rob Loach
e834d32b8e
Update switch to just return at the end instead 2018-10-12 09:41:25 -04:00
Rob Loach
ec41e87cf1
Update logic behind params 2018-10-11 22:39:43 -04:00
Rob Loach
b8825127fd
Fix parentheses around ‘+’ in operand of ‘&’ 
```
Core/z80_cpu.c: In function ‘add_hl_rr’:
Core/z80_cpu.c:341:31: error: suggest parentheses around ‘+’ in operand of ‘&’ [-Werror=parentheses]
     if ( ((unsigned long) hl) + ((unsigned long) rr) & 0x10000) {
          ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
```
 2018-10-11 22:37:26 -04:00
Rob Loach
f4ee044347
Fix control reaches end of non-void function 
This change makes it so that there is a return value when a kind doens't match. Allows -Werror=return-type to pass.

```
Core/debugger.c: In function ‘read_lvalue’:
Core/debugger.c:239:1: error: control reaches end of non-void function [-Werror=return-type]
 }
```
 2018-10-11 22:17:16 -04:00
Lior Halphon
11c148c851 Starting G/HDMA directly takes one more M-cycle (More research required) 2018-09-15 00:48:31 +03:00
Lior Halphon
dbc338a887 Compensate for prefetch in DIV’s initial value 2018-09-15 00:47:26 +03:00
Lior Halphon
ec0a879a93 Correct emulation of enabling and disabling the volume envelope. Correct emulation of a glitch where the volume envelope ticks when it usually wouldn’t. 2018-09-10 16:59:59 +03:00
Lior Halphon
3151821e6d Fixed minor APU regression (Channels 1 and 2 were given no delay under certain circumstances) 2018-09-09 12:50:55 +03:00
Maximilian Mader
a36dd791ec
Rewrite the DAA instruction 2018-07-22 18:37:34 +02:00
Lior Halphon
f7b882f0e8 Whoops 2018-07-22 02:10:26 +03:00
Lior Halphon
b7426f93c0 Randomize object palettes. Slightly more accurate emulation of FF4C. 2018-07-20 23:23:47 +03:00
Lior Halphon
ce80acc818 Fixed HDMA timing )But still not verified) 2018-07-20 12:34:52 +03:00
Lior Halphon
b1cc55b786 Turns out Left/Right audio channels were flipped 2018-07-19 20:38:11 +03:00
Lior Halphon
c66b6fbafc Fixed an edge case with DAC discharge emulation 2018-07-16 23:08:25 +03:00
Lior Halphon
2e9e3424ec Document some revision differences 2018-07-14 21:52:54 +03:00
Lior Halphon
0145b790a3 Merge branch 'v0.11.x' 2018-07-11 20:08:33 +03:00
Lior Halphon
5f58323c01 Attempt to improve audio quality on frontend with big audio buffers 2018-07-10 21:33:03 +03:00
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