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ReC98/pc98.inc

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[Maintenance] Move PC-98 hardware constants to a separate include file SPRITE16 would also like to refer to those later. Part of P0061, funded by Touhou Patch Center.
2019-11-08 20:03:03 +00:00
; ReC98
; -----
; PC-98 hardware constants not covered by master.lib
[Reverse-engineering] [th04/th05] graph_putsa_fx
2019-11-26 11:51:08 +00:00
; Text
; ====
[Reverse-engineering] [th03] 1P/2P selection gaiji cursor Part of P0064, funded by Touhou Patch Center.
2019-12-28 20:20:48 +00:00
GAIJI_W = 16
GAIJI_TRAM_W = (GAIJI_W / 8)
[Maintenance] [th01/th02] Split graph_putsa_fx() into its shared parts I did consider not doing this, because "well, can't anyone who's *actually* interested just diff the TH01 and TH02 implementations to figure out the differences themselves", but that duplication ended up feeling too filthy after all. And hey, it's a nice excuse to update TH02's version to current naming standards! 😛 Part of P0068, funded by Yanga.
2020-01-13 21:52:19 +00:00
GLYPH_HALF_W = 8
GLYPH_FULL_W = 16
GLYPH_H = 16
[Reverse-engineering] [th04/th05] graph_putsa_fx
2019-11-26 11:51:08 +00:00
; ====
[Maintenance] Move PC-98 hardware constants to a separate include file SPRITE16 would also like to refer to those later. Part of P0061, funded by Touhou Patch Center.
2019-11-08 20:03:03 +00:00
; Graphics
; ========
[Separate translation units] [th05] Music Room piano (undecompilable functions) Reasons: • piano_fm_part_put_raw(): SI register referenced and not saved on the stack • piano_current_note_from(): Would be decompilable… into a mess. Not worth adding a separate translation unit just for it. • piano_part_keys_put_raw(): DI register saved before the SI register • piano_pressed_key_put(): DI register referenced and not immediately saved on the stack • piano_label_put_raw(): SI and DI registered referenced and not saved on the stack • grcg_setcolor_direct_seg1_raw(): Let's procrastinate this one until we have to reference all of these instances in C land. And we could have even emitted that PIANO_KEY_PRESSED_TOP pixel data into the code segment, by using `#pragma option -z` to give identical names to both the code and the data segment. At least we can decompile the first two functions here. Part of P0135, funded by [Anonymous].
2021-02-27 14:49:28 +00:00
BYTE_DOTS = 8
[Maintenance] Move PC-98 hardware constants to a separate include file SPRITE16 would also like to refer to those later. Part of P0061, funded by Touhou Patch Center.
2019-11-08 20:03:03 +00:00
RES_X = 640
RES_Y = 400
[Separate translation units] [th05] Music Room piano (undecompilable functions) Reasons: • piano_fm_part_put_raw(): SI register referenced and not saved on the stack • piano_current_note_from(): Would be decompilable… into a mess. Not worth adding a separate translation unit just for it. • piano_part_keys_put_raw(): DI register saved before the SI register • piano_pressed_key_put(): DI register referenced and not immediately saved on the stack • piano_label_put_raw(): SI and DI registered referenced and not saved on the stack • grcg_setcolor_direct_seg1_raw(): Let's procrastinate this one until we have to reference all of these instances in C land. And we could have even emitted that PIANO_KEY_PRESSED_TOP pixel data into the code segment, by using `#pragma option -z` to give identical names to both the code and the data segment. At least we can decompile the first two functions here. Part of P0135, funded by [Anonymous].
2021-02-27 14:49:28 +00:00
ROW_SIZE = (RES_X / BYTE_DOTS)
[Maintenance] Use @@locals for self-modifying code in bfnt_entry_pat() Which finally allows us to use the PLANE_SIZE macro in ASM land. Yeah, (ROW_SIZE * RES_Y) has finally got old. Part of P0073, funded by [Anonymous] and -Tom-.
2020-02-05 21:45:59 +00:00
PLANE_SIZE = (ROW_SIZE * RES_Y)
[Maintenance] Templatize RGB and palette types for 4- and 8-bit components Right, PC-98 hardware only supports 4 bits per RGB component, for a total of 4,096 possible colors. The 8-bit RGB color values we've been seeing throughout the later games are a master.lib extension, to allow for more toning precision. Which TH01, with all its NIH syndrome, doesn't use. And yup, that means templates in the most basic header files… Since that would have meant renaming *everything* to compile as C++, I simply made these types exclusive to C++ code, thcrap style. Part of P0066, funded by Keyblade Wiedling Neko and Splashman.
2020-01-05 11:05:42 +00:00
COLOR_COUNT = 16
[Maintenance] Mirror recent pc98.h and master.hpp declarations in ASM land Part of P0134, funded by [Anonymous].
2021-02-08 14:37:30 +00:00
[Maintenance] Move the number of VRAM planes to pc98.h Allowing us to consistently mirror the declaration in pc98.inc without adding a planar.inc file. 😛 And points us to two more dots8_t* arrays that should have used the Planar<> template. Part of P0135, funded by [Anonymous].
2021-02-24 13:24:58 +00:00
PLANE_COUNT = 4
[Maintenance] Mirror recent pc98.h and master.hpp declarations in ASM land Part of P0134, funded by [Anonymous].
2021-02-08 14:37:30 +00:00
; RGB color triple, used for the Palettes structure
rgb_t struc
r db ?
g db ?
b db ?
rgb_t ends
palette_t struc
colors rgb_t COLOR_COUNT dup(<?>)
palette_t ends
[Maintenance] Move PC-98 hardware constants to a separate include file SPRITE16 would also like to refer to those later. Part of P0061, funded by Touhou Patch Center.
2019-11-08 20:03:03 +00:00
; ========
[Reverse-engineering] [th03] CDG: VRAM plane iteration Which is where ZUN adds those additional 0x2000 to make the jump from the 0xB800 plane to the 0xE000 plane. Part of P0114, funded by Lmocinemod.
2020-09-06 22:21:38 +00:00
SEG_PLANE_B = 0A800h
SEG_PLANE_R = 0B000h
SEG_PLANE_G = 0B800h
SEG_PLANE_E = 0E000h
SEG_PLANE_DIST_BRG = 800h
SEG_PLANE_DIST_E = 2800h