Tue, 23 Aug 2022 20:21:26 -0700 |
Michael Pavone |
Fix implementation of semi-broken sprite zoom on SMS1
|
Mon, 22 Aug 2022 23:21:16 -0700 |
Michael Pavone |
Implement Mode 4 sprite zooming
|
Mon, 22 Aug 2022 20:43:19 -0700 |
Michael Pavone |
Prevent Mode 5 selection when not emulating the Genesis VDP
|
Mon, 22 Aug 2022 20:05:36 -0700 |
Michael Pavone |
Fix Game Gear color issues (thanks Sik!)
|
Sun, 21 Aug 2022 22:29:47 -0700 |
Michael Pavone |
Very rudimentary support for Game Gear VDP emulation
|
Sun, 06 Mar 2022 22:36:21 -0800 |
Michael Pavone |
Fix some null-pointer dereference crashes on a ROM that abuses V28/V30 mode switching
|
Tue, 09 Mar 2021 22:47:51 -0800 |
Michael Pavone |
Fix window bug implementation
|
Sat, 20 Feb 2021 14:52:32 -0800 |
Michael Pavone |
Make KDEBUG functionality play nice with gdb remote debugging
|
Sat, 20 Feb 2021 12:47:26 -0800 |
Michael Pavone |
Close VDP debug windows when VDP is freed. Fixes Trac bug 39
|
Sun, 01 Nov 2020 13:28:31 -0800 |
Michael Pavone |
Multiplying by zero and shifting by zero are very different. Fixes regression in Overdrive 2
|
Sun, 01 Nov 2020 12:32:25 -0800 |
Mike Pavone |
Fix a regression in sprite rendering that could cause garbage to be displayed on first line
|
Mon, 19 Oct 2020 15:46:16 -0700 |
Mike Pavone |
Add support for the parts of the KMod debug ports used by SGDK
|
Sun, 28 Jun 2020 22:53:52 -0700 |
Mike Pavone |
Enter debugger when a VDP data port read would cause a CPU lockup
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Sun, 28 Jun 2020 21:31:09 -0700 |
Mike Pavone |
Fix regressions from most recent address/cd latch change. Need to do more research still, but probably good enough for now
|
Thu, 18 Jun 2020 00:20:25 -0700 |
Michael Pavone |
Fix regressions in Monster World IV and Sonic 3D Blast caused by address latch changes
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Fri, 15 May 2020 23:39:15 -0700 |
Michael Pavone |
Fix regression in Mode 4 support caused by address/cd latch changes
|
Fri, 08 May 2020 11:40:30 -0700 |
Michael Pavone |
Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
|
Sat, 02 May 2020 00:52:21 -0700 |
Mike Pavone |
Fix some netplay issues
|
Fri, 01 May 2020 23:39:45 -0700 |
Michael Pavone |
Netplay protocol size optimization
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Wed, 29 Apr 2020 01:00:57 -0700 |
Michael Pavone |
WIP netplay support
|
Fri, 17 Apr 2020 22:20:08 -0700 |
Mike Pavone |
Fix regression in Konami games from address/cd latch changes
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Thu, 16 Apr 2020 22:37:43 -0700 |
Mike Pavone |
Admit defeat on the "trying to write CRAM dots while output is null issue" for now and just add a null check
|
Mon, 13 Apr 2020 20:43:25 -0700 |
Michael Pavone |
Don't apply address and cd register changes to the 'live' registers until pending flag is cleared, but do preserve the upper address bits in the latch. Fixes regression in Overdrive 2 while preserving fix to Mona in 344 bytes
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Fri, 03 Apr 2020 23:47:17 -0700 |
Michael Pavone |
Top bits of address register should be cleared on partial command word write. Fixes Mona in 344 bytes demo
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Wed, 01 Apr 2020 23:15:47 -0700 |
Michael Pavone |
Fix regression at the very start of The Revenge of Shinobi
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Thu, 27 Feb 2020 18:38:15 -0800 |
Michael Pavone |
Make VDP VSRAM capacity respect model selection
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Sun, 02 Feb 2020 22:38:49 -0800 |
Mike Pavone |
Fix crash in OD2 Titancade scene when border is completely cropped by overscan settings
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Thu, 09 Jan 2020 22:27:20 -0800 |
Michael Pavone |
Fix crash in 68K debugger from forced VDP frame update when framebuffer is not acquired
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Mon, 06 Jan 2020 18:36:36 -0800 |
Michael Pavone |
Fix regression in handling of color index 0 in Mode 4. Support Mode 4 in CRAM viewer window
|
Wed, 09 Oct 2019 23:06:02 -0700 |
Michael Pavone |
Wait to reacquire framebuffer so that switching to UI does not require pushing a new frame if it happens in between bottom and top of display
|
Sat, 21 Sep 2019 20:23:53 -0700 |
Michael Pavone |
Fix regression in H32 from fine scroll optimization
|
Sat, 21 Sep 2019 20:20:03 -0700 |
Michael Pavone |
Small optimization to read_map_scroll
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Sat, 21 Sep 2019 11:17:40 -0700 |
Michael Pavone |
Optimized sprite rendering
|
Sat, 21 Sep 2019 11:01:07 -0700 |
Michael Pavone |
Calculate fine scroll once per line for a small speedup
|
Sat, 21 Sep 2019 10:53:51 -0700 |
Michael Pavone |
Slightly gross fix for edge case introduced in border cropping change
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Mon, 16 Sep 2019 00:45:48 -0700 |
Mike Pavone |
Don't render lines that are cropped by overscan. Allows submitting frame earlier when bottom overscan is non-zero which can reduce latency in some cases
|
Tue, 20 Aug 2019 20:18:27 -0700 |
Michael Pavone |
Small optimization to render_normal and a minor bugfix in left border debug register handling
|
Tue, 20 Aug 2019 07:07:31 -0700 |
Michael Pavone |
Fix sprite rendering regression introduced by H40 line at a time optimization
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Mon, 19 Aug 2019 19:06:22 -0700 |
Michael Pavone |
Small optimization to render_map in VDP code
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Sat, 17 Aug 2019 18:44:15 -0700 |
Michael Pavone |
Draw entire lines in H40 mode when possible. Still seems to have an edge case or two, but mostly working well
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Fri, 02 Aug 2019 18:51:13 -0700 |
Michael Pavone |
Fix regression in sprite rendering in H32 mode
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Sat, 27 Jul 2019 21:11:53 -0700 |
Michael Pavone |
Fix debug register output regression in border region
|
Mon, 24 Jun 2019 23:47:16 -0700 |
Michael Pavone |
Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
|
Thu, 20 Jun 2019 22:31:31 -0700 |
Michael Pavone |
Rework sprite rendering phase 3 to better match behavior documented by Kabuto/Titan and fix edge case in sprite overflow flag that was breaking the RPS minigame in Alex Kidd
|
Tue, 09 Apr 2019 22:39:01 -0700 |
Michael Pavone |
Get rid of writes to INVALID_LINE in the framebuffer and fix a crash in OD2 from the recent accuracy work
|
Tue, 02 Apr 2019 23:55:21 -0700 |
Michael Pavone |
Separate compositing from final output. Fixes some minor accuracy issues with regards to when background color reg/CRAM changes take effect. Fixes minor glitch in DF Retro Direct Color DMA demo at inactive/active transition
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Thu, 14 Mar 2019 23:23:02 -0700 |
Michael Pavone |
Handle interlaced mode in fbdev backend
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Sun, 30 Dec 2018 14:43:30 -0800 |
Michael Pavone |
Fix some rendering bugs introduced in previous VDP optimizations
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Thu, 27 Dec 2018 10:40:24 -0800 |
Michael Pavone |
Small optimization to render_map
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Thu, 27 Dec 2018 09:23:51 -0800 |
Michael Pavone |
Optimized render_map_output a bit
|
Tue, 18 Dec 2018 19:58:00 -0800 |
Michael Pavone |
Allow closing VDP debug windows with the close button in the window title bar
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Tue, 20 Nov 2018 01:10:03 -0800 |
Michael Pavone |
Populate layer debug buffer during inactive display
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Mon, 19 Nov 2018 19:26:57 -0800 |
Michael Pavone |
Removed old VDP debug functionality
|
Mon, 19 Nov 2018 19:10:16 -0800 |
Michael Pavone |
Implemented support for toggling off a debug view
|
Mon, 19 Nov 2018 09:52:07 -0800 |
Michael Pavone |
Basic version of layer compositing debug view in a separate window
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Fri, 16 Nov 2018 19:56:24 -0800 |
Michael Pavone |
Small cleanup of vdp_context struct layout and removal of separately allocated buffers
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Thu, 15 Nov 2018 22:21:09 -0800 |
Michael Pavone |
Implemented left column blank register bit in mode 5
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Wed, 14 Nov 2018 22:16:35 -0800 |
Michael Pavone |
Initial stab at CRAM debug in a detached window
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Sun, 11 Nov 2018 22:39:29 -0800 |
Michael Pavone |
Fix for VRAM byte write order broke VDP FIFO testing ROM results. This change cleans up VRAM writes and fixes the regression while preserving the correct VRAM byte write order
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Fri, 09 Nov 2018 20:16:09 -0800 |
Michael Pavone |
Added VRAM debug window
|
Mon, 05 Nov 2018 00:30:44 -0800 |
Michael Pavone |
Fix order bytes of a word are written into VRAM from the FIFO. Fixes ticket 36, the graphical glitch in Road Rash 3
|
Sun, 04 Nov 2018 22:51:50 -0800 |
Michael Pavone |
WIP new VDP plane debug view and support for detached VDP debug views generally
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Thu, 01 Nov 2018 20:14:56 -0700 |
Michael Pavone |
Forcefully update the display when entering the 68K debugger so you can see it update in realtime as you step through the code
|
Wed, 31 Oct 2018 21:58:59 -0700 |
Michael Pavone |
Avoid changing VDP status flags when executing debugger commands
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Tue, 29 Aug 2017 23:49:57 -0700 |
Michael Pavone |
Fix minor graphical regression in Gunstar Heroes
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Mon, 21 Aug 2017 23:49:56 -0700 |
Michael Pavone |
Fix external v counter when normal resolution interlace mode is active
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Mon, 21 Aug 2017 23:08:36 -0700 |
Michael Pavone |
Fix timing of VDP ODD flag toggle
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Sun, 13 Aug 2017 22:59:01 -0700 |
Michael Pavone |
Move vscroll latch further forward in H40 mode. Fixes a minor graphical glitch in Skitchin. Needs a proper test ROM to verify exact latch position
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Fri, 11 Aug 2017 18:58:03 -0700 |
Michael Pavone |
Update VDP color map when loading a native save state
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Wed, 09 Aug 2017 23:26:51 -0700 |
Michael Pavone |
New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
|
Sun, 06 Aug 2017 00:06:36 -0700 |
Michael Pavone |
WIP - New savestate format
|
Fri, 30 Jun 2017 00:36:18 -0700 |
Michael Pavone |
Change where vscroll is latched in full plane mode. Fixes Top Gear 2
|
Thu, 15 Jun 2017 09:45:21 -0700 |
Michael Pavone |
Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
|
Wed, 31 May 2017 21:10:49 -0700 |
Michael Pavone |
Prevent emulated screen from "rolling" when the vertical resolution is changed at an inopportune time
|
Mon, 29 May 2017 22:19:33 -0700 |
Michael Pavone |
Implement horizontal border in Mode 4 and make a minor fix to advance_output_line to handle the later vcounter increment in that mode
|
Mon, 29 May 2017 17:30:40 -0700 |
Michael Pavone |
Get H32 in sync with H40 with regards to borders and test register support. Minor cleanup to H40 border rendering
|
Sun, 28 May 2017 21:03:55 -0700 |
Michael Pavone |
Implemented SMS pause button
|
Tue, 23 May 2017 21:09:38 -0700 |
Michael Pavone |
Remove HINT_FUDGE and make a small adjustment to how VDP syncs with rest of system instead. Worse results on CRAM dot issue, but much less of a hack
|
Tue, 23 May 2017 19:09:57 -0700 |
Michael Pavone |
Fix handling of test register selected sprite layer in border area. Gets rid of the border garbage in the "disco floor/ceiling" scene of OD2
|
Tue, 23 May 2017 09:39:22 -0700 |
Michael Pavone |
Fix small blank spot on line -2 in "ninja escape" border fade in OD2
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Mon, 22 May 2017 21:11:13 -0700 |
Michael Pavone |
Fix regression in horizontal interrupt timing that was breaking the "water" palette swap in the Sonic series and other games
|
Fri, 19 May 2017 22:07:50 -0700 |
Michael Pavone |
Add a bit of a hack to HINT start cycle to give correct values in my test ROM and further improve prevelance of CRAM dot noise in Outrunners and OD2
|
Sun, 14 May 2017 12:07:39 -0700 |
Michael Pavone |
Fix regression in games that disable the display early like F1 World Championship. Remove debug printf
|
Sun, 14 May 2017 11:15:56 -0700 |
Michael Pavone |
WIP attempt at fixing the minor line -2 glitch in the OD2 Ninja Escape scene
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Thu, 11 May 2017 20:33:31 -0700 |
Michael Pavone |
Fix regression in Mode 4 sprite rendering
|
Thu, 11 May 2017 08:01:10 -0700 |
Michael Pavone |
Fix regression in mode 4 introduced when advance_output_line was added
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Fri, 05 May 2017 23:45:45 -0700 |
Michael Pavone |
Fix sprite rendering in double resolution interlace mode
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Fri, 05 May 2017 22:08:30 -0700 |
Michael Pavone |
Fix vscroll latching when full screen vscroll is used in combination with the window plane on the left side of the screen
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Thu, 04 May 2017 22:47:51 -0700 |
Michael Pavone |
Fix transition from active to inactive display
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Thu, 04 May 2017 22:14:12 -0700 |
Michael Pavone |
Fix border rendering so that the first and last line of display are consistently drawn
|
Wed, 03 May 2017 21:28:40 -0700 |
Michael Pavone |
Implement the effect of VDP test register usage on the top and bottom borders. Fixes the remaning issue with the border dissolve in the "Ninja Escape" scene of Overdrive 2
|
Mon, 01 May 2017 20:33:59 -0700 |
Michael Pavone |
Fix sprite rendering for negative line. Fixes remaining visual glitch in the Titancade scene of Overdrive 2
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Sat, 29 Apr 2017 16:51:57 -0700 |
Michael Pavone |
Initial stab at horizontal border when VDP test register layer selection is in effect for H40. Extended horizontal borders in Titancade scene and ninja escape scene mostly correct now
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Thu, 27 Apr 2017 23:08:49 -0700 |
Michael Pavone |
Fixes to sprite phase 2 so that sprite X reads use the exact same slot as on hardware in the case that there are fewer than the max number of sprites on each line. Re-read sprite Y from SAT cache during phase 2 and properly mask the calculated row. Fixes remaining issues with spinning cube scene in Overdrive 2.
|
Thu, 27 Apr 2017 09:32:21 -0700 |
Michael Pavone |
Adjust how the invalid size is handled for the horizontal dimmension of a plane. Fixes some garbage on the spinning cube scene of Overdrive 2
|
Wed, 26 Apr 2017 22:16:12 -0700 |
Michael Pavone |
Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
|
Wed, 26 Apr 2017 01:12:28 -0700 |
Michael Pavone |
Add 128K VRAM bit to VDP register print in debugger
|
Fri, 21 Apr 2017 01:22:52 -0700 |
Michael Pavone |
Fairly major rework of how active/passive is handled along with how the V30 mode bit is handled. Allows the vertical border extension trick in Overdrive 2 to work right
|
Tue, 18 Apr 2017 19:27:10 -0700 |
Michael Pavone |
Initial stab at implementing the output disable/layer selection bits of the VDP test register
|
Mon, 17 Apr 2017 23:58:21 -0700 |
Michael Pavone |
Fix time 68K is locked out of bus when doing a 128KB VRAM mode DMA transfer. Fixes a number of problems in Overdrive 2
|
Mon, 17 Apr 2017 20:54:33 -0700 |
Michael Pavone |
SAT table register bit 0 is not used in H40 mode. Fixes corrupt sprites in ship crash landing scene in Overdrive 2
|
Sun, 16 Apr 2017 18:43:34 -0700 |
Michael Pavone |
Fix some edge cases with regards to 128KB VRAM mode and the SAT cache
|
Sun, 16 Apr 2017 16:40:04 -0700 |
Michael Pavone |
Initial work on handling the 128KB VRAM mode bit and some basic prep work for VDP test register support
|
Wed, 05 Apr 2017 09:48:49 -0700 |
Michael Pavone |
Fix minor bug that displayed window plane as if it were plane A In plane debug view
|
Sat, 25 Mar 2017 11:31:43 -0700 |
Michael Pavone |
Fix latching of V32 mode bit
|
Sun, 19 Mar 2017 12:54:20 -0700 |
Michael Pavone |
Change handling of invalid scroll plane sizes. Fixes title and high score screens in The Incredible Hulk
|
Sun, 19 Mar 2017 11:17:40 -0700 |
Michael Pavone |
Adjust DMA start delay to not break the FIFO Wait State test in the VDP FIFO Testing ROM
|
Sat, 18 Mar 2017 17:09:14 -0700 |
Michael Pavone |
Remove hacky post-DMA delay add proper pre-DMA delay based on logic analyzer capture. 512 color screen is a bit messed up but mostly works. Needs investigation
|
Mon, 13 Mar 2017 23:13:24 -0700 |
Michael Pavone |
Fix VDP buffer overrun that was causing sprite flickering in some games
|
Thu, 09 Mar 2017 19:23:24 -0800 |
Michael Pavone |
Fix graphical corruption and sprite flickering introduced into some games by the last change for horizontal border support
|
Tue, 07 Mar 2017 20:17:12 -0800 |
Michael Pavone |
Fill in the rest of the framebuffer holes created by horizontal border. Work remains for things to be seemless when display gets turned on and off mid frame
|
Tue, 07 Mar 2017 00:01:16 -0800 |
Michael Pavone |
Fix some of the framebuffer fill holes introduced by horizontal border changes
|
Mon, 06 Mar 2017 23:05:31 -0800 |
Michael Pavone |
Adjust correspondance between slot number and actual video output to better match video signal measurements and analysis of Outrunners behavior on hardware. Partially fixes ticket:13
|
Mon, 06 Mar 2017 09:54:44 -0800 |
Michael Pavone |
Render horizontal border in H32 mode as well. Both modes still need some minor work to deal with inactive/active transition
|
Mon, 06 Mar 2017 00:23:35 -0800 |
Michael Pavone |
Initial stab at horizontal border emulation. Only works for H40 and still has a few minor holes to fill
|
Tue, 24 Jan 2017 00:02:03 -0800 |
Michael Pavone |
Remove accidentally committed debug logging
|
Sun, 22 Jan 2017 19:40:32 -0800 |
Michael Pavone |
Force IPV4 for GDB remote debugging on Windows. Bind to localhost instead of unspecified address since listening on external ports probably isn't a good idea in the general case
|
Thu, 19 Jan 2017 09:32:34 -0800 |
Michael Pavone |
Fix border rendering at end of line 1FE. vdp_inactive will probably need a small fixup for the edge case when we start between when the vcounter is incremented and the line is truly finished.
|
Wed, 18 Jan 2017 21:30:20 -0800 |
Michael Pavone |
CRAM contention artifact emulation
|
Tue, 17 Jan 2017 19:01:04 -0800 |
Michael Pavone |
Undo poorly thought out minor optimization that screwed up rendering
|
Tue, 17 Jan 2017 09:27:05 -0800 |
Michael Pavone |
Fix vdp_run_to_vblank
|
Tue, 17 Jan 2017 09:18:35 -0800 |
Michael Pavone |
Disable timing debug
|
Tue, 17 Jan 2017 09:18:16 -0800 |
Michael Pavone |
Fix line advancement in Mode 4 during inactive display. Fix a Mode 4 VInt timing discrepency
|
Tue, 17 Jan 2017 09:02:36 -0800 |
Michael Pavone |
Fix H40 VInt inconsistency
|
Mon, 16 Jan 2017 23:34:30 -0800 |
Michael Pavone |
Fix H32 VInt timing inconsistency
|
Mon, 16 Jan 2017 22:30:21 -0800 |
Michael Pavone |
Fix H32 inconsistency
|
Mon, 16 Jan 2017 21:38:49 -0800 |
Michael Pavone |
Added synthetic test for tracking down interrupt timing issues
|
Mon, 16 Jan 2017 09:31:33 -0800 |
Michael Pavone |
Fix some timing inconsistencies in H40 mode. Added some ifdefed timing debug code.
|
Sun, 15 Jan 2017 22:54:01 -0800 |
Michael Pavone |
Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
|
Sun, 15 Jan 2017 22:38:31 -0800 |
Michael Pavone |
Rework how inactive lines are handled. Fix H40 cycle increment in slot 182
|
Sun, 15 Jan 2017 15:29:32 -0800 |
Michael Pavone |
Fix benchmark mode
|
Sun, 15 Jan 2017 15:07:24 -0800 |
Michael Pavone |
Initial work on emulating top and bottom border area
|
Mon, 09 Jan 2017 19:24:11 -0800 |
Michael Pavone |
Fix disagreement on line change location between vdp_h32_mode4 and vdp_run_context that was causing the first line to be garbage in some cases
|
Sun, 08 Jan 2017 13:39:44 -0800 |
Michael Pavone |
A bunch of Mode 4 fixes
|
Sun, 08 Jan 2017 10:46:32 -0800 |
Michael Pavone |
Update H32 and Mode 4 mappings based on latest tests
|
Fri, 06 Jan 2017 19:25:04 -0800 |
Michael Pavone |
Fix H40 slot mapping to better match old VRAM bus captures and adjust for recent VCounter measurements
|
Thu, 05 Jan 2017 19:15:53 -0800 |
Michael Pavone |
Clear sprite overflow flag when control port read. Fix vcounter progression in Mode 4
|
Thu, 05 Jan 2017 00:42:11 -0800 |
Michael Pavone |
Fix Mode 4 sprite collision flag
|
Thu, 05 Jan 2017 00:36:23 -0800 |
Michael Pavone |
Implemented Mode 4 H conter latching
|
Thu, 05 Jan 2017 00:08:28 -0800 |
Michael Pavone |
BlastEm now passes all of the tests on the first page of "Megadrive VDP Test" in VDPTEST.sms
|
Wed, 04 Jan 2017 23:01:58 -0800 |
Michael Pavone |
Fix to pass a couple more tests in VDPTEST.sms
|
Wed, 04 Jan 2017 22:48:00 -0800 |
Michael Pavone |
Fix some issues with VDP interface in Mode 4/PBC mode
|
Wed, 04 Jan 2017 21:23:59 -0800 |
Michael Pavone |
Display both byte and word pending values to better reflect VDP pending state in PBC mode
|
Wed, 04 Jan 2017 20:43:22 -0800 |
Michael Pavone |
Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
|
Mon, 02 Jan 2017 16:25:13 -0800 |
Michael Pavone |
Fix Mode 4 sprite table Y scan to account for VRAM byte swapping
|
Sun, 01 Jan 2017 23:00:28 -0800 |
Michael Pavone |
Fix slot tracking screwup
|
Sun, 01 Jan 2017 22:47:23 -0800 |
Michael Pavone |
Fix horizontal scrolling in Mode 4
|
Sun, 01 Jan 2017 21:06:32 -0800 |
Michael Pavone |
Update Mode 4 rendering to match logic analyzer captures
|
Sun, 01 Jan 2017 02:33:06 -0800 |
Michael Pavone |
Fix a bug in hslot advancement in Mode 4. Fix some of the "inactive_start" calculations that did not take into account Mode 4.
|
Sun, 01 Jan 2017 01:23:26 -0800 |
Michael Pavone |
Make Mode 4 sprite rendering a little less broken
|
Sun, 01 Jan 2017 01:16:43 -0800 |
Michael Pavone |
Fix rendering of BG color index 0 in Mode 4. Only transparent with respect to sprites and not the backdrop like in Mode 5
|
Tue, 27 Dec 2016 14:31:27 -0800 |
Michael Pavone |
Fix Mode 4 color mapping
|
Tue, 27 Dec 2016 13:46:06 -0800 |
Michael Pavone |
Brighten up Mode 4 colors
|
Tue, 27 Dec 2016 13:38:58 -0800 |
Michael Pavone |
The function of the HVC Latch enable bit in mode register 1 is different when not in mode 5
|
Tue, 27 Dec 2016 13:26:14 -0800 |
Michael Pavone |
Fix inactive start line for Mode 4 in vdp_next_hint. Fix an off by one error in the range of registers allowed to be written in Mode 4
|
Tue, 27 Dec 2016 13:11:07 -0800 |
Michael Pavone |
Implemented Mode 4 sprite list termination
|
Tue, 27 Dec 2016 12:43:37 -0800 |
Michael Pavone |
Less broken Mode 4 implementation
|
Tue, 27 Dec 2016 11:31:17 -0800 |
Michael Pavone |
Somewhat broken implementation of Mode 4
|
Thu, 22 Dec 2016 19:51:25 -0800 |
Michael Pavone |
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
|
Mon, 12 Dec 2016 09:50:33 -0800 |
Michael Pavone |
Fix field flag handling bug introduced with VDP/render interface cleanup
|
Fri, 09 Dec 2016 09:48:48 -0800 |
Michael Pavone |
WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
|
Mon, 28 Nov 2016 22:45:46 -0800 |
Michael Pavone |
Clean up symbol visiblity and delete a ltitle bit of dead code
|
Mon, 22 Aug 2016 09:46:18 -0700 |
Michael Pavone |
Cleanup the separation of render backend and VDP code in preparation for having extra debug windows. Make determination of H40/H32 based on number of lines in each mode.
|
Fri, 12 Aug 2016 09:39:39 -0700 |
Michael Pavone |
Removed obsolete TOOD
|
Sun, 15 May 2016 16:22:45 -0700 |
Michael Pavone |
Fix bug in vflip implementation when in double resolution interlace mode
|
Wed, 11 May 2016 22:43:18 -0700 |
Michael Pavone |
Fix implementation of sprite collision flag. Old implementation did not make sense.
|
Mon, 02 May 2016 23:08:20 -0700 |
Michael Pavone |
Fix GST savestate loading to deal with SAT cache to fix sprite corruption on savestate load. Clear out Z80 native_pc so the Z80 state does not get hosed when loading a savestate while the emulator is already running
|
Sat, 30 Apr 2016 20:57:29 -0700 |
Michael Pavone |
Fix bug in SAT cache address calculation that caused a crash in Strider II
|
Sat, 30 Apr 2016 16:19:57 -0700 |
Michael Pavone |
Added TODO for hardware checking
|
Sat, 30 Apr 2016 16:19:19 -0700 |
Michael Pavone |
Set sprite overflow flag if we completely consume sprite rendering capacity for the line even if there is nothing left to draw. This graphical corruption in the vertical stretching scroll section. Needs hardware confirmation.
|
Sat, 30 Apr 2016 15:31:48 -0700 |
Michael Pavone |
Implement SAT cache. Causes some graphical corruption in Overdrive due to an unrelated bug.
|
Sat, 30 Apr 2016 08:37:55 -0700 |
Michael Pavone |
Fix some stuff with interrupt timing. The change in adjust_int_cycle gets Overdrive working again (vint was not being preferred over hint in some cases). One of the changes seems to have broken Fatal Rewind again, but no other regressions that I can see.
|
Wed, 27 Apr 2016 23:57:00 -0700 |
Michael Pavone |
Properly emulate machine freeze when reading from VDP while configured for writes
|
Sun, 24 Apr 2016 14:30:15 -0700 |
Michael Pavone |
FIFO should show as empty during a DMA fill after the initial write is done. BlastEm now gets a perfect score in VDP FIFO Testing
|
Sun, 24 Apr 2016 11:53:59 -0700 |
Michael Pavone |
Fixes to the DMA busy flag and DMA fill. Now up to 120/122 on VDP FIFO Testing.
|
Sun, 24 Apr 2016 02:19:48 -0700 |
Michael Pavone |
Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing
|
Sun, 24 Apr 2016 01:24:38 -0700 |
Michael Pavone |
Implemented VDP read prefetch and made DMA copy not use the FIFO any more. Now up to 114 out of 122 passing on VDP FIFO Test ROM
|
Tue, 12 Apr 2016 21:38:24 -0700 |
Michael Pavone |
Remove the int number argument to vdp_int_ack since it is no longer used
|
Tue, 12 Apr 2016 08:35:44 -0700 |
Michael Pavone |
Fix VDP interrupt ack. Big thanks to Eke-Eke or whoever left that helpful comment in Genesis Plus GX. Fixes Fatal Rewind
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Tue, 02 Feb 2016 18:33:00 -0800 |
Michael Pavone |
Change the sentinel value for the hslot parameter of run_dma_src to something that is not a valid slot number and actually use it for calls during the active display period
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Tue, 02 Feb 2016 18:24:15 -0800 |
Michael Pavone |
Perform the same slot mapping shift for H32 mode as I did for H40
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Thu, 28 Jan 2016 09:10:14 -0800 |
Michael Pavone |
Shift slot number to slot behavior mapping by six slots in H40 mode. This makes the line change slot align with the point at which the display turns on and off at the end of the active display area. Also fixed a regression in which an external slot got accidentally changed into a sprite draw slot
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Tue, 26 Jan 2016 19:23:10 -0800 |
Michael Pavone |
After reviewing the results of my test ROM again it seems pretty clear that the VBlank flag gets set at the same time as the vcounter changes
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Sun, 17 Jan 2016 14:46:12 -0800 |
Michael Pavone |
Fix calculation of window start column when it's on the right side. This removes graphical glitches in Afterburner 2, Fireshark and Dungeons and Dragons: Warriors of the Eternal Sun and probably others
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Fri, 13 Nov 2015 22:56:59 -0800 |
Michael Pavone |
Selecting a second game from the menu now works
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Mon, 03 Aug 2015 20:06:56 -0700 |
Michael Pavone |
Pretty decent optimization of vdp_h40 and vdp_h32. Gets reasonably close to the speed of 0.2.0 in the worst case and is faster than 0.2.0 in others
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Fri, 17 Jul 2015 08:49:23 -0700 |
Michael Pavone |
Add ability to change start address for VRAM viewer. Fix handling of DMA enable flag when it comes to DMA fills. This fixes a bug in James Pond 3
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Sun, 28 Jun 2015 09:53:17 -0700 |
Michael Pavone |
More clang warning cleanup
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Sat, 30 May 2015 15:53:59 -0700 |
Michael Pavone |
Fixed shadow/highlight mode
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Fri, 22 May 2015 18:38:44 -0700 |
Michael Pavone |
Fix bug in vdp_next_hint that was causing HINTs to fire repeatedly when they should not have fired at all based on an HINT interval that was larger than the number of active lines in the display
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Thu, 21 May 2015 00:55:46 -0700 |
Michael Pavone |
Restore the other 2 debug display modes
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Wed, 20 May 2015 22:27:51 -0700 |
Michael Pavone |
Add some tests for hint timing and fix it properly this time.
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Wed, 20 May 2015 19:05:11 -0700 |
Michael Pavone |
Upgrade to SDL 2.0 and drop support for the non-OpenGL render path
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Wed, 20 May 2015 10:35:03 -0700 |
Michael Pavone |
Update vscroll latch implementation to be more in line with what Eke-Eke has observed. Revert the change to vdp_cycles_to_line because it breaks hints on line 0. H-Int timing is still a little messed up, but the previous change made things worse.
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Tue, 19 May 2015 23:23:53 -0700 |
Michael Pavone |
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
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Sun, 17 May 2015 15:43:20 -0700 |
Michael Pavone |
Fix VDP status register PAL bit based on observations of the Titan Overdrive demo
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Sat, 16 May 2015 23:08:07 -0700 |
Michael Pavone |
Adjust H32 vint slot in response to latest test ROM data
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Sat, 16 May 2015 23:04:57 -0700 |
Michael Pavone |
First pass at emulating a vscroll latch. Titan's Overdrive demo seems to depend on the scroll value being latched early in the line before the HINT gets a chance to change it
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Thu, 14 May 2015 23:17:55 -0700 |
Michael Pavone |
Small horizontal interrupt fixes
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Wed, 13 May 2015 19:19:43 -0700 |
Michael Pavone |
Add description of cd register value to vr debugger command
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Mon, 11 May 2015 20:30:35 -0700 |
Michael Pavone |
Fix frame counter increment and VINT cycle time calculation
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Mon, 11 May 2015 00:28:47 -0700 |
Michael Pavone |
Sync fixes and logging to fix more sync issues
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Sun, 04 Jan 2015 23:05:37 -0800 |
Michael Pavone |
Some small synchronization improvements that do not seem to fix anything
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Sun, 04 Jan 2015 12:24:34 -0800 |
Michael Pavone |
Adjusted h40_hsync_cycles so that lines actually take 3420 mclks. Fixed vdp_cycles_next_line to take h40_sync_cycles into account
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Sun, 14 Dec 2014 18:14:50 -0800 |
Michael Pavone |
Fix the HV counter and adjust the slots of certain VDP events
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Thu, 14 Aug 2014 09:38:32 -0700 |
Michael Pavone |
Small fix to display of DMA source address in vr debug command
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Wed, 18 Jun 2014 16:39:42 -0700 |
Michael Pavone |
Remove debug printf that escaped into my previous commit
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Wed, 18 Jun 2014 16:30:19 -0700 |
Michael Pavone |
Fix most of the breakage caused by the vcounter/hcounter changes
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Tue, 17 Jun 2014 19:01:01 -0700 |
Michael Pavone |
Partially working switch to having a vcounter and hslot counter in the context rather than trying to derive them from the cycle count. This should allow for more accurate handling of mid screen mode switches. Interrupt timing is broken currently though
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Mon, 16 Jun 2014 19:13:28 -0700 |
Michael Pavone |
Fix a few values reported by the vr debugger command. Add DMA registers to vr debugger command. Fix horizontal interrupt bug. Slightly more accurate (but still broken) handling of switches between H32 and H40 modes.
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Sat, 08 Feb 2014 23:37:09 -0800 |
Mike Pavone |
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
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Mon, 06 Jan 2014 22:54:05 -0800 |
Michael Pavone |
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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Thu, 31 Oct 2013 00:28:27 -0700 |
Mike Pavone |
Small optimization for H40 mode
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Tue, 29 Oct 2013 00:03:11 -0700 |
Mike Pavone |
Merge
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Mon, 07 Oct 2013 10:02:08 -0700 |
Mike Pavone |
Initial implementation of sprite overflow and sprite collision status register flags
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Sun, 27 Oct 2013 01:29:50 -0700 |
Mike Pavone |
Basic OpenGL rendering is working
opengl
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Tue, 17 Sep 2013 19:10:00 -0700 |
Mike Pavone |
Set VBLANK flag in status register when display is disabled
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Tue, 17 Sep 2013 09:45:14 -0700 |
Mike Pavone |
Implement HV counter latch
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Tue, 17 Sep 2013 00:42:49 -0700 |
Mike Pavone |
Implement funny behavior for DMA fill to CRAM and VSRAM. Return VSRAM address 0 for reads to VSRAM at >= 40
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Tue, 17 Sep 2013 00:11:45 -0700 |
Mike Pavone |
Fix DMA fill so that it does not cause observable changes to the FIFO. Get DMA copy mostly correct from an observable ffect perspective. DMA copy probably does not reflect internal implementation still given that evidence seems to suggest no FIFO usage at all.
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Mon, 16 Sep 2013 09:44:22 -0700 |
Mike Pavone |
Partial fix for DMA copy
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Sun, 15 Sep 2013 23:49:09 -0700 |
Mike Pavone |
Clear the low 2 bits of CD when a register is written to
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Sun, 15 Sep 2013 23:40:18 -0700 |
Mike Pavone |
Don't allow register writes to regs above when in Mode 4
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Sun, 15 Sep 2013 23:33:24 -0700 |
Mike Pavone |
Remove read pending stuff, that had been added in an attempt to fix CRAM/VSRAM undefined bit results. Set number of bits actually saved in VSRAM to 11
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Sun, 15 Sep 2013 23:00:17 -0700 |
Mike Pavone |
Implement undocumented 8-bit VRAM read
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Sun, 15 Sep 2013 22:43:01 -0700 |
Mike Pavone |
Fix VSRAM reads
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Sun, 15 Sep 2013 22:20:43 -0700 |
Mike Pavone |
Implement FIFO as a ring buffer so the behavior of reads from invalid CRAM and VSRAM bits can be implemented properly
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Fri, 13 Sep 2013 19:22:46 -0700 |
Mike Pavone |
Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM.
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Tue, 10 Sep 2013 23:31:08 -0700 |
Mike Pavone |
Added copyright notice to source files and added GPL license text in COPYING
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Tue, 10 Sep 2013 09:55:12 -0700 |
Mike Pavone |
Fix timing of backdrop rendering when the display is turned off
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Tue, 10 Sep 2013 00:30:39 -0700 |
Mike Pavone |
Merge
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Tue, 10 Sep 2013 00:29:46 -0700 |
Mike Pavone |
Implement FIFO latency and improve DMA accuracy
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Sun, 08 Sep 2013 20:48:33 -0700 |
Mike Pavone |
Revert change to VBLANK flag timing based on new direct color DMA test
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Mon, 02 Sep 2013 01:02:18 -0700 |
Mike Pavone |
Fix per-column scrolling bug
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Mon, 02 Sep 2013 00:20:56 -0700 |
Mike Pavone |
Adjust VBLANK flag and refresh timing to be in line with logic analyzer and visual observations of direct color DMA demos. Remove debug print statements.
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Sun, 01 Sep 2013 14:27:17 -0700 |
Mike Pavone |
Merge
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Fri, 26 Jul 2013 19:55:04 -0700 |
Mike Pavone |
Added support for saving savestates. Added gst savestate format test harness
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Sun, 01 Sep 2013 12:11:28 -0700 |
Mike Pavone |
Fix bug that caused a DMA fill to start after another DMA operation completed if the FIFO is not empty
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Tue, 16 Jul 2013 23:16:14 -0700 |
Mike Pavone |
Add address/cd registers to VDP debug message
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Mon, 15 Jul 2013 23:07:45 -0700 |
Mike Pavone |
Restore one of the VDP debugging modes
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Fri, 12 Jul 2013 19:11:55 -0700 |
Mike Pavone |
Implement the scroll ring buffer properly without memcpy
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Sun, 30 Jun 2013 21:45:23 -0700 |
Mike Pavone |
Refactor duplicated CRAM writing code and fix a bug in the process
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Sun, 30 Jun 2013 11:45:58 -0700 |
Mike Pavone |
Make VDP render in native pixel format of the renderer for a modest performance gain and to make it easier to use OpenGL for rendering
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Sat, 29 Jun 2013 17:15:08 -0700 |
Mike Pavone |
Add support for loading GST format savestates
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Sun, 23 Jun 2013 12:27:11 -0700 |
Mike Pavone |
Fix window layer in double res interlace mode
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Sun, 23 Jun 2013 10:17:40 -0700 |
Mike Pavone |
Fix sprite y mask in interlace mode. Fix framebuffer selection when switching out of interlace mode.
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Sun, 23 Jun 2013 09:17:19 -0700 |
Mike Pavone |
Fix vscroll calculation in double resultion interlace mode
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Sat, 22 Jun 2013 21:19:43 -0700 |
Mike Pavone |
Initial work on interlace
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Wed, 15 May 2013 22:37:04 -0700 |
Mike Pavone |
Fix background color regsiter number
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Tue, 14 May 2013 00:46:34 -0700 |
Mike Pavone |
Only latch video mode at the very beginning of the frame to avoid problems with the cycle count getting out of sync with what I expect
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Tue, 14 May 2013 00:40:10 -0700 |
Mike Pavone |
Update Z80 vint timing
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Tue, 14 May 2013 00:28:45 -0700 |
Mike Pavone |
Update hv counter calculation for clock wonkiness
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Tue, 14 May 2013 00:03:26 -0700 |
Mike Pavone |
Fixup VINT cycle and HBLANK flag for the previous timing fixes
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Mon, 13 May 2013 23:42:52 -0700 |
Mike Pavone |
Initial stab at implementing funky clock adjustments during HSYNC for H40 mode
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Mon, 13 May 2013 21:52:33 -0700 |
Mike Pavone |
Implement first line/last line weirdness in VDP
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Mon, 13 May 2013 21:36:33 -0700 |
Mike Pavone |
Fewer magic numbers in the VDP core for the win
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Mon, 13 May 2013 21:06:08 -0700 |
Mike Pavone |
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
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Sat, 11 May 2013 23:59:20 -0700 |
Mike Pavone |
Properly mask sprite X and Y coordinates
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Sat, 11 May 2013 22:45:05 -0700 |
Mike Pavone |
Remove z80_ram reference in SDL renderer to get stateview compiling again. Print out the sprite list in stateview.
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Fri, 10 May 2013 23:16:06 -0700 |
Mike Pavone |
Implement hblank flag in status register
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Fri, 10 May 2013 22:57:56 -0700 |
Mike Pavone |
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
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Mon, 06 May 2013 00:57:56 -0700 |
Mike Pavone |
Make sure all rendering operations mask CRAM with 0xEEE before using it
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Mon, 22 Apr 2013 23:34:39 -0700 |
Mike Pavone |
Less broken implementation of shadow/highlight
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Mon, 22 Apr 2013 21:24:50 -0700 |
Mike Pavone |
Shadow and higlight operators were switched
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Mon, 22 Apr 2013 19:39:38 -0700 |
Mike Pavone |
Implemented shadow hilight mode.
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Mon, 14 Jan 2013 20:23:17 -0800 |
Mike Pavone |
Fixes for direct color dma stuff
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Mon, 14 Jan 2013 02:13:14 -0800 |
Mike Pavone |
Small fix to bg drawing that yields the proper res for direct color DMA
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Mon, 14 Jan 2013 02:03:35 -0800 |
Mike Pavone |
Fix background rendering when display is off and improve refresh cycle emulation so that direct color DMA demos work
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Tue, 08 Jan 2013 09:34:46 -0800 |
Mike Pavone |
Fix rendering of sprites at the top edge of screen
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Thu, 03 Jan 2013 22:07:40 -0800 |
Mike Pavone |
Implement MULU/MULS and DIVU/DIVS
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Tue, 01 Jan 2013 07:06:57 -0800 |
Mike Pavone |
Make writes to control and data port block when DMA is in progress
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Mon, 31 Dec 2012 18:36:16 -0800 |
Mike Pavone |
Fix infinite loop bug in sprite rendering
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Mon, 31 Dec 2012 18:22:25 -0800 |
Mike Pavone |
Fix DMA fills to VRAM
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Mon, 31 Dec 2012 18:12:08 -0800 |
Mike Pavone |
Fix DMA in progress flag in VDP status register
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Mon, 31 Dec 2012 11:26:57 -0800 |
Mike Pavone |
Fix VDP reads
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Sun, 30 Dec 2012 22:39:41 -0800 |
Mike Pavone |
Implemented HV counter
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Sun, 30 Dec 2012 11:54:25 -0800 |
Mike Pavone |
Fix 68K->VDP DMA
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Sun, 30 Dec 2012 01:15:16 -0800 |
Mike Pavone |
Fix bug that was causing DMA fills to lock up under certain circumstances
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Fri, 28 Dec 2012 15:04:22 -0800 |
Mike Pavone |
COmment out fifo full debug printf
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Fri, 28 Dec 2012 15:03:00 -0800 |
Mike Pavone |
Fix horizontal mask values for scroll plane map address calculation
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Wed, 26 Dec 2012 20:18:58 -0800 |
Mike Pavone |
vertical interrupts now work
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Wed, 26 Dec 2012 17:34:59 -0800 |
Mike Pavone |
Fix long reads from IO ports or long reads that trigger sync cycles by saving rdi. Possibly fix word wide IO reads.
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Wed, 26 Dec 2012 17:06:34 -0800 |
Mike Pavone |
Implement Z80 reset and bus request registers.
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Fri, 21 Dec 2012 20:56:32 -0800 |
Mike Pavone |
Implement DMA (untested)
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Wed, 19 Dec 2012 22:15:16 -0800 |
Mike Pavone |
Fix issue in which VDP would have trouble emptying FIFO because the VDP cycle count got reset at end of frame.
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Wed, 19 Dec 2012 20:53:59 -0800 |
Mike Pavone |
Add FPS counter to console output
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Tue, 18 Dec 2012 22:20:25 -0800 |
Mike Pavone |
Properly zero-init all VDP buffers. Comment out some debug printfs.
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Tue, 18 Dec 2012 19:51:33 -0800 |
Mike Pavone |
Fix CRAM and possibly VSRAM writes
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Tue, 18 Dec 2012 02:16:42 -0800 |
Mike Pavone |
Get Flavio's color bar demo kind of sort of working
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Sun, 09 Dec 2012 18:40:45 -0800 |
Mike Pavone |
Add debug render mode and fix vertical flip bit for bg tiles
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Sun, 09 Dec 2012 17:26:36 -0800 |
Mike Pavone |
Fix bug in tile address masking. Remove some debug code from window plane.
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Sun, 09 Dec 2012 17:10:08 -0800 |
Mike Pavone |
More correct window support, maybe
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Sun, 09 Dec 2012 17:05:13 -0800 |
Mike Pavone |
Broken window support
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Sun, 09 Dec 2012 01:13:41 -0800 |
Mike Pavone |
Horizontal scroll works correctly now. In particular, the SEGA logo in Vectorman has a nice smooth wave like it should
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Sun, 09 Dec 2012 00:03:15 -0800 |
Mike Pavone |
Implement sprite index >= sprite limit triggers sprite limit behavior
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Sat, 08 Dec 2012 23:49:51 -0800 |
Mike Pavone |
Initial H32 mode support
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Sat, 08 Dec 2012 23:09:40 -0800 |
Mike Pavone |
Pass all sprite masking tests
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Sat, 08 Dec 2012 23:06:13 -0800 |
Mike Pavone |
Small fix to overflow flag
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Sat, 08 Dec 2012 22:50:14 -0800 |
Mike Pavone |
Improve sprite masking to almost completely pass Nemesis' sprite masking test
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Sat, 08 Dec 2012 21:39:01 -0800 |
Mike Pavone |
Fix horizontal sprite mirroring
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Sat, 08 Dec 2012 20:25:56 -0800 |
Mike Pavone |
Make horizontal scrolling closer to correct, Comix Zone looks good, Sonic 2 slightly off
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Sat, 08 Dec 2012 20:02:10 -0800 |
Mike Pavone |
Small cleanup
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Sat, 08 Dec 2012 19:59:32 -0800 |
Mike Pavone |
Fix horizontal scroll offset
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Sat, 08 Dec 2012 19:42:07 -0800 |
Mike Pavone |
Fix BG plane B render bug
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Sat, 08 Dec 2012 16:58:11 -0800 |
Mike Pavone |
Fix sprite transparency for overlapping sprites
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Sat, 08 Dec 2012 16:46:47 -0800 |
Mike Pavone |
Fix management of context->sprite_draws so the sprite layer only draws when it should
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Sat, 08 Dec 2012 16:16:18 -0800 |
Mike Pavone |
Fix vertical scroll value for plane B
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Sat, 08 Dec 2012 16:09:43 -0800 |
Mike Pavone |
Partially fix BG plane B
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Sat, 08 Dec 2012 16:02:17 -0800 |
Mike Pavone |
Fix endianness of VSRAM when read from Genecyst save state
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Sat, 08 Dec 2012 11:59:50 -0800 |
Mike Pavone |
Sprites fixed, working on bg planes
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Sat, 08 Dec 2012 11:12:17 -0800 |
Mike Pavone |
Sprites somewhat less broken
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Sat, 08 Dec 2012 02:00:54 -0800 |
Mike Pavone |
Mostly broken VDP core and savestate viewer
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