Sour
797ef1f57a
PCE: Improved timing for SATB/VRAM DMA
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Fixes freeze in TV Sports Football's "New Season" screen and is very close to new test rom's timings/results
2025-02-01 19:43:59 +09:00
Sour
604f1a6fc9
PCE: Fixed SuperGrafx layering problem
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When VDC1 had both BG and sprites disabled, it blocked the VDC2's background (resulting in a black screen). VDC1's output should count as transparent in this scenario
2024-12-11 18:32:55 +09:00
Sour
c9adff355f
PCE: Tweak trigger for RCR counter increments
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The RCR counter doesn't appear to increment unless the HDW mode (e.g the visible scanline) actually starts. On the other hand, the vertical mode counter will get clocked even if the VDC doesn't hit HDW (trigger seems to be earlier, currently set to be the same timing as the Y scroll latch). The RCR IRQ could occur later than on hardware because of this
2024-10-19 22:34:39 +09:00
Sour
b6e9dcbc13
PCE: Improved X/Y scroll and CR latch timing
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Also update the latched values when a register write occurs at the same time
This matches the results seen in the rcrtest (https://github.com/pce-devel/huc/tree/master/examples/asm/elmer/rom-bare-rcrtest ) for all VDC clock speeds
2024-09-21 14:17:06 +09:00
Sour
5b992e35f8
PCE: Implement better MWR latch timing
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Changing anything but CG Mode mid-screen should not be allowed (latched in vblank)
2024-08-19 10:54:57 +09:00
Sour
01a663d19d
PCE: Fixed "remove sprite limit" not working properly in some scenarios
2024-01-04 11:15:12 +09:00
Sour
30a564d932
PCE: Allow vram reads/writes during sprite fetching if the VDC is done fetching all of the sprite data required for the next scanline
2023-12-24 17:25:26 +09:00
Sour
1204a399f9
PCE: Fixed typo in previous commit which broke the intended logic
2023-12-24 15:00:16 +09:00
Sour
d3a6aadbef
PCE: Block vram accesses at the start of horizontal sync
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Makes timing test rom results match hardware a bit better
2023-12-23 22:29:19 +09:00
Sour
0cb1c2bc5e
PCE: VDC - Allow VRAM transfers to run at any time when rendering is disabled
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Fixes issues in movies in both Cosmic Fantasy 4 and Flash Hiders
2023-12-23 21:33:19 +09:00
Sour
935df44068
PCE: VDC - Allow vram read/writes during sprite fetching if no sprites need to be fetched for the next scanline
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Fixes last remaning issues in Popful Mail's intro scene
2023-12-23 21:31:49 +09:00
Sour
b84d4f23cf
PCE: Improved VRAM read/write delays
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Not perfect, but a lot closer than before. Matches hardware results pretty well in most scenarios, but most of it is guesswork
Fixed Wonder Momo and seems to not have any negative impacts on other games
2023-12-23 13:28:21 +09:00
Sour
7a2927793c
PCE: Fixed SGX games video issue caused by another recent fix
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Row buffer for VDC2 was being cleared too early, causing the 2nd layer to always be empty
2023-10-30 21:44:23 +09:00
Sour
bb57e13572
PCE: Fixed data from previous frames sometimes being shown on screen when VCE clock changes mid-scanline
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Caused flickering line in Order of the Griffon
2023-09-30 17:31:49 +09:00
Sour
5f89c254ad
PCE: Improved start timing for the SATB DMA transfer
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This was needed to fix a homebrew rom (which works on hardware)
2023-09-15 22:53:24 +09:00
Sour
abd779c1ce
PCE: Fixed VRAM-VRAM DMA speed
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This was apparently running 2x faster than hardware
2023-09-15 18:20:55 +09:00
Sour
a1cd60be33
PCE: Improved/fixed vram read address increment logic/timing
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Fixes issues found by Vectrex28 in a homebrew rom
2023-07-05 21:27:46 +09:00
Sour
63b779be8d
PCE: Reset cycle counter at the end of DMA
2023-04-07 13:39:20 -04:00
Sour
7108bdde36
Refactoring - Moved some leftover files out of the root folder
2022-09-08 21:48:49 -04:00
Sour
152abf690b
Rename stdafx.h to pch.h
2022-09-08 21:29:52 -04:00
Sour
603ac38251
PCE: Fixed issues with runahead caused by frame skipping
2022-09-01 15:16:44 -04:00
Sour
45287639ca
PCE: Added support for frame skipping, moved frame skipping option to global video settings
2022-09-01 14:45:18 -04:00
Sour
a5c6e0911c
PCE: Fixed out-of-bounds memory writes when sprites were in the left offscreen margin
2022-09-01 00:12:41 -04:00
Sour
f05260ad90
PCE: Optimize Exec() logic with templates/logic to avoid calls when not needed, etc.
2022-08-31 22:30:07 -04:00
Sour
6d254cd487
PCE: Optimize DrawScanline using template
2022-08-31 22:16:04 -04:00
Sour
ebd289182b
PCE: Optimize rendering by tracking which pixels potentially have sprites
2022-08-31 20:12:37 -04:00
Sour
1a95508e9c
PCE: Optimize GetTilePixelColor
2022-08-31 20:10:28 -04:00
Sour
9b73fadab9
Debugger: PCE - Added option to break on invalid vram access
2022-08-21 16:55:08 -04:00
Sour
76014f1271
Save states: Performance improvements (improves runahead performance)
2022-08-18 21:19:09 -04:00
Sour
2eda2cc27e
Debugger: Lua - Allow callback to change read/written value, allow callbacks on any memory type (not just cpu memory), allow callbacks for ppu memory
2022-08-02 01:42:14 -04:00
Sour
6163158637
Debugger: Lua - Implemented getState + setState
2022-07-31 15:00:53 -04:00
Sour
623892d6c3
Fixed ram init logic to ensure the correct config option is used when loading a game
2022-07-25 22:04:44 -04:00
Sour
05180385ab
PCE: Implemented save states
2022-07-20 18:49:25 -04:00
Sour
0a6a8e92b2
PCE: SuperGrafx support
2022-05-15 20:35:56 -04:00
Sour
6d0fb13cdc
PCE: Rename PPU to VDC
2022-05-13 18:02:25 -04:00
