VGA_CRTC_H_SYNC_END
wreg_crt(cirrus, VGA_CRTC_H_SYNC_END, hsyncend);
vga_wcrt(regbase, VGA_CRTC_H_SYNC_END, tmp);
par->crtc[VGA_CRTC_H_SYNC_END] = (((xres + right + hslen) >> 3) & 0x1F)
write3X4(par, VGA_CRTC_H_SYNC_END,
par->crtc[VGA_CRTC_H_SYNC_END] = pos & 0x1F;
par->crtc[VGA_CRTC_H_SYNC_END] |= 0x80;
vga_io_wcrt(VGA_CRTC_H_SYNC_END, 0x00);