Nintendo 3DS >> C/C++

Hello, world!

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參考資訊：
1. libctru doc
2. 3ds-examples

說明：

API
void gfxInitDefault(void)
PrintConsole* consoleInit(gfxScreen_t screen, PrintConsole *console)
void gspWaitForVBlank(void)
void gfxSwapBuffers(void)
void svcSleepThread(s64 ns)
void gfxExit(void)

main.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <3ds.h>

int main(void)
{
    gfxInitDefault();
    consoleInit(GFX_TOP, NULL);

    printf("hello, world!");

    gspWaitForVBlank();
    gfxSwapBuffers();
    svcSleepThread(3000000000LL);
    gfxExit();
    return 0;
}

Makefile

include $(DEVKITARM)/3ds_rules

all:
	arm-none-eabi-gcc -mword-relocations -ffunction-sections -march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft -I/opt/devkitpro/libctru/include -I/opt/devkitpro/portlibs/3ds/include/ -I/opt/devkitpro/portlibs/3ds/include/opus/ -I/opt/devkitpro/portlibs/3ds/include/SDL -D__3DS__ -c main.c -o main.o 
	arm-none-eabi-gcc -specs=3dsx.specs -march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft main.o -L/opt/devkitpro/portlibs/3ds/lib -lopusfile -logg -lopus -L/opt/devkitpro/libctru/lib -lSDL_image -lSDL_mixer -lSDL_ttf -lSDL_gfx -lSDL -lfreetype -lbz2 -lpng -ljpeg -lz -lcitro2d -lcitro3d -lctru -lm -lstdc++ -o main.elf
	smdhtool --create "main" "devkitARM" "steward" /opt/devkitpro/libctru/default_icon.png main.smdh
	3dsxtool main.elf main.3dsx --smdh=main.smdh

clean:
	rm -rf main.o main.elf main.3dsx main.smdh

編譯、執行

$ sudo docker run --rm -it -v $(pwd):/source nds-env /bin/bash
root@c18881035cba:/source# make && exit
$ citra main.3dsx

完成

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