From 79b5360cf02c2b89ee277b3e6ef1b97e0052dae6 Mon Sep 17 00:00:00 2001
From: Connor McLaughlin <stenzek@gmail.com>
Date: Tue, 5 Jan 2021 02:10:33 +1000
Subject: [PATCH] Updated Difficult to Emulate Games (markdown)

---
 Difficult-to-Emulate-Games.md | 58 +++++++++++++++++++++++++++++++++--
 1 file changed, 56 insertions(+), 2 deletions(-)

diff --git a/Difficult-to-Emulate-Games.md b/Difficult-to-Emulate-Games.md
index 3f32e7a..167fc4c 100644
--- a/Difficult-to-Emulate-Games.md
+++ b/Difficult-to-Emulate-Games.md
@@ -2,88 +2,136 @@
  - DMA transfer timing or FMVs lock up
  - Commands spanning multiple blocks
 
+***
+
 ### Hot Wheels Turbo Racing
  - DMA timing or hangs on startup/ingame
 
+***
+
 ### Syphon Filter (series)
  - Infinite DMA linked list/chains
 
+***
+
 ### Valkyrie Profile
  - Requires DMA timing otherwise battles time out/lock up
 
+***
+
 ### Red Asphalt
 ### Dukes of Hazzard, The - Racing for Home 
 ### Little Princess - Marl Oukoku no Ningyou-hime 2
  - Hangs in various locations if DMA timing is off
  - Locks up if DMA timing is off/CPU does not run
 
+***
+
 ### Suikoden (version 1.0, not 1.1)
  - Two releases, the old version corrupts palettes if you don't emulate fetch timing from the BIOS ROM
  - It executes a bunch of memmoves (running from uncached ROM), which can't complete too quickly, racing the DMA
  - Interestingly, version 1.1 spams printf during the same screen transition with a bunch of a's and a number suffix
 
+***
+
 ### Deadheat Road
  - Kicks off a DMA chain involving a VRAM fill, which takes a while to complete,
  - then does a memcpy out of uncached ROM
  - then zeroes out some of the headers in the DMA chain before it finishes
  - Will hang emulators (if they don't properly handle infinite LLs) or the game will time out and skip a bunch of texture uploads in the loading scren
 
+***
+
 ### Alice in Cyberland
  - HUD/UI will flicker during battles if draw and DMA timing is instant
 
+***
+
 ### Battle Arena Toshinden
  - Runs too fast if CPU/GPU timing is off
 
+***
+
 ### Bust A Groove Series
  - Audio will drift slowly over time with game if GPU frame rate is incorrect
 
+***
+
 ### Championship Motocross 2001 featuring Ricky Carmichael
  - Sensitive to DMA timing - rider will be missing from bike if incorrect
 
+***
+
 ### Evil Dead - Hail to the King (USA)
  - Needs timer0 clocked from dot clock emulated
 
+***
+
 ### NASCAR 2001
  - Main menu music will drop in and out if SPU interrupts are not re-triggered after enabling
 
+***
+
 ### Skullmonkeys
  - Requires GPU coordinate truncation/sign-extension otherwise objects will be missing
 
+***
+
 ### Formula One 99
  - Requires CPU icache emulation
 
+***
+
 ### Spyro 2 PAL
 ### Spyro 3 PAL
  - Libcrypt protection is really nasty - the cop0 instructions to grab are xor-obfuscated, and written immediately before execution
  - Naive icache implementations will break - you need to handle partial line fetches from non-16-byte-aligned addresses
 
+***
+
 ### Parasite Eve 2
 ### Disney's Treasure Planet
  - Sensitive to MDEC timing
 
+***
+
 ### Pro Pinball Series, True Pinball
  - Requires interlaced rendering (line skipping) otherwise hangs on startup
 
+***
+
 ### Dead or Alive
 ### Mr Driller G
  - Requires interlaced rendering, otherwise artifacts on screen in various locations
 
-Vamp### ire Hunter D
+***
+
+### Vampire Hunter D
  - Screws with GPU packets after enabling DMA, requires CPU to run in parallel otherwise menu will be black
 
+***
+
 ### Jackie Chan Stuntmaster
  - Triggers interrupts by setting cop0 bits in software, can be tricky for recompilers
 
+***
+
 ### Remote Control Dandy
  - Requires VRAM transfers to be masked to 9 bits
 
+***
+
 ### Shadow Master
 ### Threads of Fate
  - Branches in branch delay slots, fun times for recompilers
 
+***
+
 ### Tales of Phantasia
  - Battle transitions will finish too quickly if GPU draw timings are not emulated
 
+***
+
 ### Silent Hill
 ### Ghost In The Shell
 ### TwinBee RPG
@@ -91,15 +139,21 @@ Vamp### ire Hunter D
 ### Ultraman - Fighting Evolution
  - Various graphical errors if mask bit is not emulated correctly
 
+***
+
 ### Megatudo 2096
 ### NBA Jam Extreme
 ### Zero Divide
  - Requires semi-accurate CPU timings (icache/fetch) and GPU draw timings, otherwise games run too fast
 
+***
+
 ### Moto Racer
 ### Frogger
 ### Pandemonium!
 ### Adidas Power Soccer 98
 ### Armored Core
 ### Auto Destruct
- - Sensitive to DMA timing (and CPU/DMA slices), otherwise controller input is dropped
\ No newline at end of file
+ - Sensitive to DMA timing (and CPU/DMA slices), otherwise controller input is dropped
+
+***
\ No newline at end of file