ketsuban

    | skip reinitialising hardware after a soft reset
    tst.l (0xA10008).l
    bne.s 1f
    tst.w (0xA1000C).l
1:  bne.s 2f

    | load register values for initialisation
    lea .Ltable(%pc), %a5
    movem.w (%a5)+, %d5-%d7
    movem.l (%a5)+, %a0-%a4

ketsuban

ENTRY(__start)

/*
 * The GBA has two sections of work RAM: internal and external. Internal work
 * RAM is essentially instantaneous to access and sits on a 32-bit bus, so it's
 * suitable for ARM code. External work RAM has a delay of two clock cycles and
 * sits on a 16-bit bus.
 */
MEMORY {
    rom (rx)    : ORIGIN = 0x08000000, LENGTH = 32M

ketsuban

arm_func 0x80000fc IntrMain
thumb_func 0x8014398 sub_8014398
thumb_func 0x80143f0 sub_80143f0
thumb_func 0x8014470 sub_8014470
thumb_func 0x8014480 sub_8014480
thumb_func 0x80144e8 sub_80144e8
thumb_func 0x801455c sub_801455c
thumb_func 0x80145bc sub_80145bc
thumb_func 0x8014600 sub_8014600
thumb_func 0x8014638 sub_8014638

ketsuban

inc/nitro/fx_mtx22.h
inc/nitro/g2_oam.h
inc/nnsys/g2d/fmt/g2d_Anim_data.h
inc/nnsys/g2d/fmt/g2d_Cell_data.h
inc/nnsys/g2d/load/g2d_NAN_load.h
inc/nnsys/g2d/g2d_Image.h
inc/nnsys/g2d/g2d_Animation_inline.h
inc/nnsys/g2d/g2d_CellAnimation.h
inc/nnsys/g2d/g2d_SRTControl.h
nnsys/g2d/g2di_OamUtil.h

ketsuban

#include "hardware.h"
#include "types.h"

struct sub_807AEE0_arg1 {
    u8 _bytepad1;
    u8 field1;
    u8 _bytepad2;
    u8 _bytepad3;
    u32 _longpad1;
    u32 _longpad2;

ketsuban

u8 dat_2000000;
u16 dat_200AF10;
void (*dat_2029EA0)(u32, u8 *, u16);

void sub_80F48F8(void (*)(void));
void sub_80F4B94(void);
void sub_80F4C14(void);
void sub_80F9BE4(u32);
u32 sub_80F9C40(void);
void sub_80FBAD0(void);

ketsuban

Keybase proof

I hereby claim:

• I am ketsuban on github.
• I am ketsuban (https://keybase.io/ketsuban) on keybase.
• I have a public key ASBMMSOWA5veoN9WZHxE87y-2HyNrk-5cd-I_D4vRhWsAQo

To claim this, I am signing this object:

ketsuban

1. Star Trek: The Next Generation: A Final Unity game engine recreation

   I like this game, but right now if you own it and want to play it you need to set up DOSbox, and that's lame. All its data files seem to be stored in a single directory on the CD, so an executable which can read those would be very cool.

   Prior art: There's an okay resource for file formats but its focus is on data dumping, so there's no documentation that I can find on which files constitute behaviour and how they're arranged. There's also this unfinished attempt to implement the game in ScummVM, but since it's written in C++ it's basically gibberish and the impetus to finish it dissolved when DOSbox gained support for the original.

2. Magic: the Gathering simulator

Magic is fun^{[citation needed]}, but playing it online sucks. Wizards of the Coast has actually put effort into a couple pieces of software that simulate the effect o

ketsuban

Add a debug menu to pokeemerald

During development it's common for your game to be partially complete; even if it isn't, you probably don't want to spend a whole bunch of time playing through the game to get to the bit you need to test. As such, it's useful to have a debug menu with a collection of tools defined in code to do useful things for you which you don't expose to the players. However, pokeemerald reproduces the commercial release of Pokémon Emerald, so there's no debug functionality at all. Fortunately we're programmers, so we can fix that.

I assume a reasonable familiarity with C, so I won't be explaining things like preprocessor directives, include guards, what a structure or its fields are, or the like. If you want or need to look these things up, you now know what to search for.

Step 0: Add a compile flag

There's no reason to expose the debug menu to the players, so it's a good idea to keep it behind a compile flag just like Game Freak did. This is technically optional,

ketsuban

zsh users are advised to use the terminfo database as the most portable way to assign commands to particular keychords, but I haven't been able to find a database of which terminfo sigils correspond to which keys. Fortunately, I found enough information written in ancient Sumerian that I could translate it into something modern humans can comprehend.

Key Chord	Terminfo Name
Backspace	kbs
Ctrl-Backspace	cub1
Insert	kich1
Shift-Insert	kIC
Alt-Insert	kIC3
Shift-Alt-Insert	kIC4