Restructured elf and psexe building

Moved assembly to `asm/` and mips rust to `rust/`.

rust/dw2003_exe_data/src/digimon_profile.rs

@@ -0,0 +1,62 @@
+//! Digimon profile
+
+/// A digimon profile
+#[repr(C)]
+pub struct DigimonProfile {
+	pub value0: u16,
+
+	pub stat_str: u16,
+	pub stat_def: u16,
+	pub stat_spt: u16,
+	pub stat_wis: u16,
+	pub stat_spd: u16,
+	pub stat_chr: u16,
+
+	pub stat_fire:    u16,
+	pub stat_water:   u16,
+	pub stat_ice:     u16,
+	pub stat_wind:    u16,
+	pub stat_thunder: u16,
+	pub stat_machine: u16,
+	pub stat_dark:    u16,
+
+	pub moves: [u16; 8],
+
+	pub res_poison:   u8,
+	pub res_paralyze: u8,
+	pub res_confuse:  u8,
+	pub res_sleep:    u8,
+	pub res_ko:       u8,
+
+	pub unknown0: [u8; 11],
+	pub unknown1: [u8; 3],
+
+	pub stat_hp: u8,
+	pub stat_mp: u8,
+
+	pub growth_hp: u8,
+	pub growth_mp: u8,
+
+	pub growth_str: u8,
+	pub growth_def: u8,
+	pub growth_spt: u8,
+	pub growth_wis: u8,
+	pub growth_spd: u8,
+	pub growth_chr: u8,
+
+	pub growth_fire:    u8,
+	pub growth_water:   u8,
+	pub growth_ice:     u8,
+	pub growth_wind:    u8,
+	pub growth_thunder: u8,
+	pub growth_machine: u8,
+	pub growth_dark:    u8,
+
+	pub blasts: [u8; 5],
+
+	pub this: u8,
+
+	pub unknown2: [u8; 2],
+}
+
+const _ASSERT_DIGIMON_PROFILE_SIZE: [u8; 0x58] = [0; core::mem::size_of::<DigimonProfile>()];

rust/dw2003_exe_data/src/lib.rs

@@ -0,0 +1,25 @@
+//! `ddw3` data
+
+// Features
+#![feature(decl_macro)]
+#![no_std]
+
+// Modules
+mod data;
+mod digimon_profile;
+mod util;
+
+// Exports
+use digimon_profile::DigimonProfile;
+
+// Dummy panic handler
+#[panic_handler]
+#[inline(never)]
+fn _panic_handler(_info: &core::panic::PanicInfo) -> ! {
+	// SAFETY: This function will not make it to the final binary
+	//         due to our linker script discarding it and being
+	//         annotated with `inline(never)`
+	unsafe {
+		core::hint::unreachable_unchecked();
+	}
+}

rust/dw2003_exe_data/src/util.rs

@@ -0,0 +1 @@
+//! Utilities