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Weird games: [message #1135] Fri, 08 February 2008 19:03 Go to next message
Administrator  [PM]
Mid-frame dot/pixel clock change:
Asuka 120%
Order of the Griffon
Ryuuko no Ken

Rely on edge-case timer behaviour:
Battle Royale

Rely on edge-case VDC vblank flag/IRQ behaviour(maybe, need to investigate again):
Battle Lode Runner
Ryukyu

Write to VRAM during VRAM DMA:
Bari Bari Densetsu
Riot Zone

Uses 2-bit sprite mode:
Fighting Run

Requires input state that can change more than once per frame:
Takeda Shingen (appears to work properly at first, but you can't break locked swords with only 1 update per frame)

Requires VDC to wait-state the CPU under certain conditions:
Popful Mail
Star Breaker (when going to world map)

Use horizontal timing registers to intentionally position active display far off from center:
Final Blaster (in an intro sequence)

[Updated on: Sun, 24 July 2011 11:55]

Re: Weird games: [message #1772 is a reply to message #1135 ] Wed, 16 June 2010 03:03 Go to previous messageGo to next message
Administrator  [PM]
Games that use VRAM DMA:
Timing = Particularly timing sensitive


Bari Bari Densetsu
Cosmic Fantasy IV - Timing
Crest of Wolf / Riot Zone - Timing
Fushigi no Yume no Alice
Langrisser - Timing
Legendary Axe II / Ankoku Densetsu - Timing (stage 5 particularly is a timing nightmare)
Magical Chase
Ninja Ryukenden
Ruin
Takeda Shingen - Timing(maybe)

[Updated on: Thu, 21 October 2010 14:47]

Re: Weird games: [message #1876 is a reply to message #1135 ] Thu, 04 November 2010 19:56 Go to previous messageGo to next message
Administrator  [PM]
Games that use streaming audio and/or video


Akumajou Dracula X - Cutscene(s)
Beyond Shadowgate
Dragon Slayer
Dragonball Z
Galaxy Fraulein Yuna HuVideo - Video
It Came from the Desert - Video
John Madden Duo Football - Video
Kuusou Kagaku Sekai Gulliver Boy - Video
Last Armageddon - Cutscene(s)
Sherlock Holmes 1 and 2 - Video
The Addams Family
Travelers

[Updated on: Sun, 10 April 2011 04:27]

Re: Weird games: [message #2089 is a reply to message #1135 ] Sat, 26 March 2011 21:06 Go to previous messageGo to next message
Administrator  [PM]
"Hanii in the Sky" relies on the sound channel volume update specifics(period, order, and update start condition). Not emulating this at least somewhat correctly will cause crackles and pops while the game is paused.
Re: Weird games: [message #2099 is a reply to message #1135 ] Tue, 05 April 2011 14:57 Go to previous message
Administrator  [PM]
Games that use sound LFO FM:

Flash Hiders
Forgotten Worlds
Hanii in the Sky
Juuoki

[Updated on: Tue, 05 April 2011 14:58]

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