minimal template project for gba-0.14.1
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commit
221e9bd8f6
7 changed files with 235 additions and 0 deletions
13
.cargo/config.toml
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13
.cargo/config.toml
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[build]
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target = "armv4t-none-eabi"
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[unstable]
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build-std = ["core"]
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[target.thumbv4t-none-eabi]
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runner = "mgba-qt"
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rustflags = ["-Clink-arg=-Tlinker_scripts/mono_boot.ld"]
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[target.armv4t-none-eabi]
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runner = "mgba-qt"
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rustflags = ["-Clink-arg=-Tlinker_scripts/mono_boot.ld"]
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1
.gitignore
vendored
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1
.gitignore
vendored
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/target
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46
Cargo.lock
generated
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46
Cargo.lock
generated
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 4
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[[package]]
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name = "bitfrob"
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version = "1.3.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5a96c7c818dc8807bb1982dd2cba4c7de0ed6eba4ffb5fc24321d1b38676a120"
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[[package]]
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name = "bracer"
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version = "0.3.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "00248d542917c4ef013367c0907300e9befbbc1f99b12938c9e5a356ab50582d"
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[[package]]
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name = "bytemuck"
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version = "1.23.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9134a6ef01ce4b366b50689c94f82c14bc72bc5d0386829828a2e2752ef7958c"
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[[package]]
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name = "gba"
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version = "0.14.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "dff72a04df599de9991069ab6807f00e02dc24840e13d16f92dfa2929c4e6950"
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dependencies = [
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"bitfrob",
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"bracer",
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"bytemuck",
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"voladdress",
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]
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[[package]]
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name = "gba-template"
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version = "0.1.0"
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dependencies = [
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"gba",
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]
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[[package]]
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name = "voladdress"
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version = "1.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7fbf3fef7bc995d3f8350936bdd07966c7a1f96183d52e3f28c29d099d0b5ecc"
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13
Cargo.toml
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13
Cargo.toml
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[package]
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name = "gba-template"
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version = "0.1.0"
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edition = "2024"
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[dependencies]
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gba = "0.14.1"
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[profile.release]
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opt-level = 3
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[profile.dev]
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opt-level = "s"
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100
linker_scripts/mono_boot.ld
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100
linker_scripts/mono_boot.ld
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/* THIS LINKER SCRIPT FILE IS RELEASED TO THE PUBLIC DOMAIN (SPDX: CC0-1.0) */
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ENTRY(__start)
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MEMORY {
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ewram (w!x) : ORIGIN = 0x2000000, LENGTH = 256K
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iwram (w!x) : ORIGIN = 0x3000000, LENGTH = 32K
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rom (rx) : ORIGIN = 0x8000000, LENGTH = 32M
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}
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SECTIONS {
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.text : {
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/* be sure that the ROM header is the very first */
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*(.text.gba_rom_header);
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*(.text .text.*);
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. = ALIGN(4);
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} >rom = 0x00
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.rodata : {
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*(.rodata .rodata.*);
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. = ALIGN(4);
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} >rom = 0x00
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. = ALIGN(4);
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__iwram_position_in_rom = .;
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.data : {
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__iwram_start = ABSOLUTE(.);
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*(.data .data.*);
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*(.iwram .iwram.*);
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. = ALIGN(4);
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__iwram_end = ABSOLUTE(.);
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} >iwram AT>rom = 0x00
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. = ALIGN(4);
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__ewram_position_in_rom = __iwram_position_in_rom + (__iwram_end - __iwram_start);
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.ewram : {
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__ewram_start = ABSOLUTE(.);
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*(.ewram .ewram.*);
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. = ALIGN(4);
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__ewram_end = ABSOLUTE(.);
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} >ewram AT>rom = 0x00
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. = ALIGN(4);
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__bss_position_in_rom = __ewram_position_in_rom + (__ewram_end - __ewram_start);
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.bss : {
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__bss_start = ABSOLUTE(.);
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*(.bss .bss.*);
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. = ALIGN(4);
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__bss_end = ABSOLUTE(.);
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} >iwram
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__iwram_word_copy_count = (__iwram_end - __iwram_start) / 4;
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__ewram_word_copy_count = (__ewram_end - __ewram_start) / 4;
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__bss_word_clear_count = (__bss_end - __bss_start) / 4;
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/* rust-lld demands we keep the `section header string table` */
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.shstrtab 0 : { *(.shstrtab) }
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/* debugging sections */
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/* Stabs */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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/* DWARF 1 */
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.debug 0 : { *(.debug) }
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.line 0 : { *(.line) }
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/* GNU DWARF 1 extensions */
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.debug_srcinfo 0 : { *(.debug_srcinfo) }
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.debug_sfnames 0 : { *(.debug_sfnames) }
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/* DWARF 1.1 and DWARF 2 */
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.debug_aranges 0 : { *(.debug_aranges) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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/* DWARF 2 */
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.debug_info 0 : { *(.debug_info) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_line 0 : { *(.debug_line) }
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.debug_frame 0 : { *(.debug_frame) }
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.debug_str 0 : { *(.debug_str) }
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.debug_loc 0 : { *(.debug_loc) }
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.debug_macinfo 0 : { *(.debug_macinfo) }
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/* SGI/MIPS DWARF 2 extensions */
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.debug_weaknames 0 : { *(.debug_weaknames) }
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.debug_funcnames 0 : { *(.debug_funcnames) }
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.debug_typenames 0 : { *(.debug_typenames) }
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.debug_varnames 0 : { *(.debug_varnames) }
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/* discard anything not already mentioned */
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/DISCARD/ : { *(*) }
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}
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12
make-rom.sh
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12
make-rom.sh
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#!/bin/bash
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# terrible
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eval $(grep '^name *=' Cargo.toml | head -n1 | sed 's/ //g')
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set -exo pipefail
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cargo build --release
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arm-none-eabi-objcopy -O binary "target/armv4t-none-eabi/release/$name" "target/${name}.gba"
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gbafix "target/${name}.gba"
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50
src/main.rs
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src/main.rs
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// from https://github.com/rust-console/gba/blob/main/examples/hello.rs
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#![no_std]
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#![no_main]
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use core::panic::PanicInfo;
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use gba::prelude::*;
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#[allow(unused_must_use)]
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#[unsafe(no_mangle)]
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#[instruction_set(arm::t32)]
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extern "C" fn main() -> ! {
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BG_PALETTE.index(0).write(Color(0x7F2B)); // blue
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BG_PALETTE.index(1).write(Color(0x5EBE)); // pink
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BG_PALETTE.index(2).write(Color(0x7FFF)); // white
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// rotate and streeetch
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BG2PA.write(i16fx8::from_bits(0));
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BG2PB.write(i16fx8::from_bits(8));
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BG2PC.write(i16fx8::from_bits(1));
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BG2PD.write(i16fx8::from_bits(0));
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// load-bearing low-order 00 byte (it's a blue pixel and a tile ID)
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unsafe { CHARBLOCK0_8BPP.index(0).cast() }.write(0x01020100);
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DISPCNT.write(
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DisplayControl::new()
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.with_video_mode(VideoMode::_2)
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.with_show_bg2(true),
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);
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// waits forever, as we haven't enabled interrupts
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VBlankIntrWait();
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unreachable!();
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}
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#[panic_handler]
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fn panic_handler(panic_info: &PanicInfo) -> ! {
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#[cfg(debug_assertions)]
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if let Ok(mut log) = MgbaBufferedLogger::try_new(MgbaMessageLevel::Fatal) {
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use core::fmt::Write;
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if let Some(loc) = panic_info.location() {
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log.write_fmt(format_args!("{loc}: ")).ok();
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}
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log.write_fmt(format_args!("{}", panic_info.message())).ok();
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}
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let _ = panic_info;
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loop {
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VBlankIntrWait();
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}
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}
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