VGA_CRTC_CURSOR_END
e = vga_get_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_END);
vga_set_crtc(VGA_REG_BASE, VGA_CRTC_CURSOR_END, e);
REG_WRITE1(sc, VGA_CRTC_ADDRESS, VGA_CRTC_CURSOR_END);