VGA_CRTC_START_LO
vga_wcrt(cinfo->regbase, VGA_CRTC_START_LO, base & 0xff);
par->crtc[VGA_CRTC_START_LO] = base & 0x000000FF;
par->crtc[VGA_CRTC_START_LO] = base & 0x000000FF;
i740outreg(par, VGA_CRT_IC, VGA_CRTC_START_LO, base & 0x000000FF);
write3X4(par, VGA_CRTC_START_LO, base & 0xFF);
vga_io_wcrt(VGA_CRTC_START_LO, pos & 0xFF);
par->crtc[VGA_CRTC_START_LO] = pos & 0xFF;