PAL_VBI_START_LINE
#define PAL_VBI_LINES (PAL_VBI_END_LINE-PAL_VBI_START_LINE+1)
PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;
PAL_VBI_START_LINE : NTSC_VBI_START_LINE;
PAL_VBI_START_LINE + 312 : NTSC_VBI_START_LINE + 263;