Commit Graph

116 Commits

Author SHA1 Message Date
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
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
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
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
Kyle Swanson
7bfe5de9c7 chmod -x 2018-03-28 21:37:34 -07:00
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
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
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
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
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