VFP
@ read all the working registers back into the VFP
VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0
@ write all the working registers out of the VFP
VFPFMRX \tmp, MVFR0 @ Media and VFP Feature Register 0
[COMPAT_KERNEL_HWCAP(VFP)] = "vfp",
chipone_writeb(icn, VFP, mode->vsync_start - mode->vdisplay);
var->lower_margin = par->VFP;
par->VFP = info->var.lower_margin;
par->VTot = par->YRES + par->VBP + par->VST + par->VFP;
u32 VFP; /* Ver Front Porch */