Commit Graph

11 Commits

Author SHA1 Message Date
nmlgc 2458172c98 [Maintenance] [th02/th03/th04/th05] Define a constant for a white VRAM color
Part of P0223, funded by Blue Bolt and rosenrose.
2022-11-30 17:00:42 +01:00
nmlgc 04038449c1 [Translation unit catch-up] [th04] frame_delay() / .PI display and loading
Segment alignment forces us to do all of those at once… but now, we've
not only caught up with the segment split point in TH04's OP.EXE and
MAINE.EXE, but also decompiled all instances of DEFCONV functions!

Part of P0138, funded by [Anonymous] and Blue Bolt.
2021-04-21 17:44:15 +02:00
nmlgc 8b5c1463f6 [Position independence] [th02/th03/th04/th05] References to known gaiji
Completes P0110, funded by [Anonymous] and Blue Bolt.
2020-08-19 20:12:02 +02:00
nmlgc d1f3dcd620 [Maintenance] Move all features exclusive to MAIN.EXE to a main/ subdirectory
Adding op/, main/, and end/ directories does nicely cover a great
majority of the "not really further classifiable slices" implied in
d56bd45.

Part of P0086, funded by [Anonymous] and Blue Bolt.
2020-04-15 20:58:01 +02:00
nmlgc deb1b73016 [Maintenance] Use a single DEFCONV definition file to cover all games
This makes a lot more sense in C land, where we can then #include this
tiny file in front of all DEFCONV declarations.
2019-12-17 23:27:01 +01:00
nmlgc 71c737c4ee [Maintenance] Move DOS memory assignment sizes to separate files
Ideally, these could be calculated from some other game-specific
parameters? Anyone else who wants to look into this?
2019-11-24 14:04:36 +01:00
nmlgc e65cf0d05d [Maintenance] Change a few ASM .inc files to use 8.3 names
Part of P0035, funded by zorg.
2019-09-24 21:58:18 +02:00
nmlgc 6f1f36722f [Reverse-engineering] [th01/th02/th04/th05] Player invincibility frames
Completes P0034, funded by zorg.
2019-09-24 21:57:53 +02:00
nmlgc e6294c2c1a [Reverse-engineering] [th02/th04/th05] Score update and display
The TH02 version is a piece of cake…

… but TH04 starts turning it into this un-decompilable piece of
unnecessarily micro-optimized ZUN code. Couldn't have chosen anything
better for the first separate ASM translation unit.

Aside from now having to convert names of exported *variables* to
uppercase for visibility in ASM translation units, the most notable
lesson in this was the one about avoiding fixup overflows. From the
Borland C++ Version 4.0 User's Guide:

	"In an assembly language program, a fixup overflow frequently
	 occurs if you have declared an external variable within a
	 segment definition, but this variable actually exists in a
	 different segment."

Can't be restated often enough.

Completes P0032, funded by zorg.
2019-09-21 14:01:47 +02:00
nmlgc 88c05e48e5 [Maintenance] Move a few more ASM definitions to their own .inc files
Part of P0032, funded by zorg.
2019-09-21 13:05:54 +02:00
nmlgc f07089017f [Maintenance] Rename the extension of game-specific ASM includes to .inc
Rule of thumb going forward: Everything that emits data is .asm,
everything that doesn't is .inc.
(Let's hope that th01_reiiden_2.inc won't exist for that much longer!)

Part of P0032, funded by zorg.
2019-09-21 13:03:56 +02:00