minimal template project for gba-0.11.3
This commit is contained in:
lif
commit
d250bb5c46
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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@ -0,0 +1 @@
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/target
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39
Cargo.lock
generated
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39
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 = 3
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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 = "0.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6559b8c3065745016f5cc2d1095273fe8a175e953c976426947ad828d6ba6fda"
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[[package]]
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name = "gba"
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version = "0.11.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7ab90d1de12c1323d80d9850c55d68931512ef7f0462a8c79e92b726f5037ad6"
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dependencies = [
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"bitfrob",
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"bracer",
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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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9
Cargo.toml
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9
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 = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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gba = "0.11.3"
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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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98
src/main.rs
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98
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::fmt::Write;
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use gba::prelude::*;
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#[panic_handler]
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fn panic_handler(info: &core::panic::PanicInfo) -> ! {
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#[cfg(debug_assertions)]
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if let Ok(mut logger) = MgbaBufferedLogger::try_new(MgbaMessageLevel::Fatal) {
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writeln!(logger, "{info}").ok();
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}
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loop {}
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}
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#[link_section = ".ewram"]
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static FRAME_KEYS: GbaCell<KeyInput> = GbaCell::new(KeyInput::new());
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#[link_section = ".iwram"]
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extern "C" fn irq_handler(_: IrqBits) {
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// We'll read the keys during vblank and store it for later.
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FRAME_KEYS.write(KEYINPUT.read());
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}
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#[no_mangle]
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extern "C" fn main() -> ! {
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RUST_IRQ_HANDLER.write(Some(irq_handler));
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DISPSTAT.write(DisplayStatus::new().with_irq_vblank(true));
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IE.write(IrqBits::VBLANK);
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IME.write(true);
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if let Ok(mut logger) = MgbaBufferedLogger::try_new(MgbaMessageLevel::Debug) {
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writeln!(logger, "hello!").ok();
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let fx_u: Fixed<u32, 8> = Fixed::<u32, 8>::wrapping_from(7) + Fixed::<u32, 8>::from_raw(12);
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writeln!(logger, "fixed unsigned: {fx_u:?}").ok();
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let fx_i1: Fixed<i32, 8> =
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Fixed::<i32, 8>::wrapping_from(8) + Fixed::<i32, 8>::from_raw(15);
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writeln!(logger, "fixed signed positive: {fx_i1:?}").ok();
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let fx_i2: Fixed<i32, 8> = Fixed::<i32, 8>::wrapping_from(0)
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- Fixed::<i32, 8>::wrapping_from(3)
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- Fixed::<i32, 8>::from_raw(17);
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writeln!(logger, "fixed signed negative: {fx_i2:?}").ok();
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}
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{
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// get our tile data into memory.
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Cga8x8Thick.bitunpack_4bpp(CHARBLOCK0_4BPP.as_region(), 0);
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}
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{
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// set up the tilemap
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let tsb = TEXT_SCREENBLOCKS.get_frame(31).unwrap();
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for y in 0..16 {
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let row = tsb.get_row(y).unwrap();
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for (x, addr) in row.iter().enumerate().take(16) {
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let te = TextEntry::new().with_tile((y * 16 + x) as u16);
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addr.write(te);
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}
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}
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}
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{
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// Set BG0 to use the tilemap we just made, and set it to be shown.
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BG0CNT.write(BackgroundControl::new().with_screenblock(31));
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DISPCNT.write(DisplayControl::new().with_show_bg0(true));
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}
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let mut x_off = 0_u32;
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let mut y_off = 0_u32;
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let mut backdrop_color = Color(0);
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loop {
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VBlankIntrWait();
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// show current frame
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BACKDROP_COLOR.write(backdrop_color);
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BG0HOFS.write(x_off as u16);
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BG0VOFS.write(y_off as u16);
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// prep next frame
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let k = FRAME_KEYS.read();
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backdrop_color = Color(k.to_u16());
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if k.up() {
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y_off = y_off.wrapping_add(1);
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}
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if k.down() {
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y_off = y_off.wrapping_sub(1);
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}
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if k.left() {
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x_off = x_off.wrapping_add(1);
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}
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if k.right() {
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x_off = x_off.wrapping_sub(1);
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}
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}
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}
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