| rec98 |
PC-98 Touhou source code reconstruction. |
| website |
Code behind this website. |
| th01 |
東方靈異伝 ～ The Highly Responsive to Prayers |
| th02 |
東方封魔録 ～ the Story of Eastern Wonderland |
| th03 |
東方夢時空 ～ Phantasmagoria of Dim.Dream |
| th04 |
東方幻想郷 ～ Lotus Land Story |
| th05 |
東方怪綺談 ～ Mystic Square |
| animation |
Colorful, crisp images that are played in a sequence. |
| anniversary-edition |
Polished and bugfixed forks of 100% decompiled games. |
| blitting |
Getting pixel data to and from VRAM. |
| bomb |
Limited-use item that damages enemies and grants temporary invulnerability, while playing a flashy animation specific to the player character. |
| bug |
Bugs in the original code that cause catastrophic effects when given malformed input. Modders beware! |
| build-process |
Dealing with the difficulties of building a mixed C++/assembly project with ancient compilers. |
| bullet |
Projectiles fired by enemies. |
| card-flipping |
TH01's regular, non-boss stages. |
| contribution-ideas |
Potential improvements that volunteers could meaningfully contribute to this project. Mostly minor issues, or slightly out of scope of the main project. |
| cutscene |
Endings or staff roll animations. Also applies to the cutscenes before stages 8 and 9 in TH03. |
| danmaku-pattern |
A complete danmaku animation over a specified period of time. |
| debloating |
Cleaning up ZUN's original code into something you can actually read and maintain. |
| debug |
Debug features that ZUN left in the shipped game. |
| dosbox-x |
A DOSBox fork with support for PC-98 emulation. |
| enemy |
Common stage enemies with simple scripts, in contrast to midbosses or bosses. |
| file-format |
Structure of an on-disk file format. |
| gaiji |
Custom 16×16 glyphs that can be used on the PC-98's 8-color text layer. |
| gameplay |
Code that defines the main in-game experience. |
| glitch |
Bugs in the original code that affect visuals or gameplay in minor ways. |
| good-code |
Things that ZUN implemented surprisingly well. |
| hidden-content |
Hidden features in the original games. |
| hud |
The area of the screen that displays the current score, lives, and bombs. |
| input |
Processing data entered from the keyboard or a joypad. |
| item |
Collectables, dropped from enemies and (mid)bosses. |
| jank |
Code of questionable quality. |
| kaja |
The PMD and MMD sound drivers by Masahiro Kajihara (梶原 正裕). |
| laser |
Beams that can collide with the player. Sometimes difficult. |
| master.lib |
A library providing an abstraction layer for all components of a PC-98 DOS system, collected and extended by Akihiko Koizuka (恋塚 昭彦). Written entirely in 16-bit x86 assembly. |
| menu |
Any window offering multiple options to be selected or configured. |
| meta |
Thoughts and news about this entire project. |
| micro-optimization |
Needlessly complicated code, achieving minimal performance gains at the cost of maintainability. |
| midboss |
A single bigger enemy with a slightly more complicated, hardcoded script, occasionally fought halfway through a stage. |
| mod |
Pre-compiled mod downloads, changing all sorts of things in the binaries. |
| palette |
Manipulation of the PC-98's 16-color palette for graphics. |
| pc98 |
Details on PC-98 hardware and software. |
| performance |
Evidence-based observations about programming a PC-98 with performance in mind. Does not include ramblings that aren't substantiated with measurements. |
| pipeline |
Additional, helpful code generation steps, beyond regular compiler/assembler invocations. |
| player |
Player-controlled characters. |
| portability |
Notes about future ports of the games away from x86 and the PC-98 platform. |
| position-independence |
Reducing the number of unlabeled memory references, to make life easier for modders. Also a requirement for using any other compiler on the reconstructed source code. |
| resident |
Data passed between the individual executables of each game. |
| rng |
Pseudo-randomness, in a gameplay sense. Emphasis on "pseudo". |
| score |
Points collected during gameplay, and stored in high score files. |
| shot |
Projectiles fired by the player. |
| stage |
The main scrolling portions of gameplay in TH02, TH04, and TH05. Mostly rendered using tile maps. |
| tasm |
Discoveries about Turbo Assembler. |
| tcc |
Discoveries about Turbo C++ 4.0J, the C++ compiler ZUN originally used for PC-98 Touhou. |
| thief |
Things that ZUN stole from others, without crediting them. |
| unused |
Unused remnants of code. Might tell something about a game's development history. |
| uth05win |
Open-source Windows rewrite of TH05, based on reverse-engineered code from the original. Slightly inaccurate in places, but overall still a great help for this project. |
| waste |
Consuming memory or disk space for no reason, or wrong reasons. Decent optimization opportunities for mods. |
| boss |
A bigger enemy with an extensive hardcoded script, fought at the end of a stage. Sometimes has personality. |
| singyoku |
TH01's Stage 5 boss. |
| yuugenmagan |
TH01's Stage 10 boss, on the 魔界/Makai route. |
| mima-th01 |
TH01's Stage 10 boss, on the 地獄/Jigoku route. |
| elis |
TH01's Stage 15 boss, on the 魔界/Makai route. |
| kikuri |
TH01's Stage 15 boss, on the 地獄/Jigoku route. |
| sariel |
TH01's Stage 20 boss, on the 魔界/Makai route. |
| konngara |
TH01's Stage 20 boss, on the 地獄/Jigoku route. |
| kurumi |
TH04's Stage 2 boss. |
| marisa-4 |
TH04's Stage 4 boss, when playing as Reimu. |
| reimu-4 |
TH04's Stage 4 boss, when playing as Marisa. |
| yuuka-5 |
TH04's Stage 5 boss. |
| yuuka-6 |
TH04's Stage 6 boss. |
| gengetsu |
TH04's second Extra Stage boss. |
| sara |
TH05's Stage 1 boss. |
| louise |
TH05's Stage 2 boss. |
| alice |
TH05's Stage 3 boss. |
| mai |
TH05's Stage 4 boss (one of them). |
| yuki |
TH05's Stage 4 boss (one of them). |
| yumeko |
TH05's Stage 5 boss. |
| shinki |
TH05's Stage 6 boss. |
| ex-alice |
TH05's Extra Stage boss. |
| seihou |
A dormant shooting game series by ZUN's former fellow students, who released the source code to the first two games in 2019. |
| sh01 |
秋霜玉 / Shuusou Gyoku |
