#include #include void main(void); void main() { int old_mode; int active, visual; int page0, page1; old_mode = fg_getmode(); fg_setmode(4); fg_allocate(1); fg_setpage(1); active = fg_getpage(); visual = fg_getvpage(); fg_setpage(0); page0 = fg_getaddr(); fg_setpage(1); page1 = fg_getaddr(); fg_freepage(1); fg_setmode(old_mode); fg_reset(); printf("Active page is %d.\n",active); printf("Visual page is %d.\n",visual); printf("Page 0 address is %4X\n",page0); printf("Page 1 address is %4X\n",page1); }