VRS              3543 drivers/video/fbdev/sis/init.c    unsigned short VRE, VBE, VRS, VBS, VDE, VT;
VRS              3607 drivers/video/fbdev/sis/init.c    VRS = crdata[8] |
VRS              3611 drivers/video/fbdev/sis/init.c    F = VRS + 1 - E;