家用機 - Sega Genesis - C/C++ - SGDK - Draw Line

參考資訊：
https://github.com/Stephane-D/SGDK
https://github.com/iratahack/m68k-elf-gcc/releases

main.c

#include <genesis.h>

int main(bool hard)
{
    Line pt = { 0 };
    u16 palette[16] = { 0 };

    palette[0] = RGB24_TO_VDPCOLOR(0x000000);
    palette[1] = RGB24_TO_VDPCOLOR(0x0000ff);
    palette[2] = RGB24_TO_VDPCOLOR(0x00ff00);
    palette[3] = RGB24_TO_VDPCOLOR(0xff0000);
    palette[4] = RGB24_TO_VDPCOLOR(0x00ffff);
    palette[5] = RGB24_TO_VDPCOLOR(0xffff00);
    palette[6] = RGB24_TO_VDPCOLOR(0xff00ff);
    palette[7] = RGB24_TO_VDPCOLOR(0xffffff);
    palette[8] = RGB24_TO_VDPCOLOR(0x404040);
    palette[9] = RGB24_TO_VDPCOLOR(0x000080);
    palette[10] = RGB24_TO_VDPCOLOR(0x008000);
    palette[11] = RGB24_TO_VDPCOLOR(0x800000);
    palette[12] = RGB24_TO_VDPCOLOR(0x008080);
    palette[13] = RGB24_TO_VDPCOLOR(0x808000);
    palette[14] = RGB24_TO_VDPCOLOR(0x800080);
    palette[15] = RGB24_TO_VDPCOLOR(0x808080);
    PAL_setPalette(PAL0, palette, CPU);

    pt.pt1.x = 10;
    pt.pt1.y = 10;
    pt.pt2.x = 100;
    pt.pt2.y = 100;
    pt.col = 3;

    BMP_init(TRUE, BG_A, PAL0, FALSE);
    BMP_drawLine(&pt);
    BMP_flip(TRUE);

    while (TRUE) {
        SYS_doVBlankProcess();
    }

    return 0;
}

編譯、執行

$ m68k-elf-gcc -I/opt/sgdk -I/opt/sgdk/inc -m68000 -c main.c
$ m68k-elf-gcc -m68000 -T /opt/sgdk/md.ld -nostdlib main.o /opt/sgdk/out/release/sega.o /opt/sgdk/lib/libmd.a -lgcc -o rom.out
$ m68k-elf-objcopy -O binary rom.out rom.bin
$ java -jar /opt/sgdk/bin/sizebnd.jar rom.bin -sizealign 131072 -checksum
$ blastem rom.bin