#include #include char * const Hires = (char *)0x4000; Bitmap Screen; ClipRect cr = {0, 0, 320, 200}; int main(void) { bm_init(&Screen, Hires, 40, 25); bmu_rect_clear(&Screen, 0, 0, 320, 200); bm_line(&Screen, &cr, 0, 0, 199, 199, 0xff, LINOP_SET); for(int i=0; i<200; i++) { assert(Hires[(i & 7) + 320 * (i >> 3) + (i & ~7)] == 0x80 >> (i & 7)); } return 0; }