A portable electronic device 14 wherein said locus of said frame buffer comprises a row of {HEAD ~ pixels} of {TAIL ~ memory} within said frame buffer 
of
A portable electronic device 14 wherein said locus of said frame buffer comprises a row of { HEAD ~ pixels } of { TAIL ~ memory } within said frame buffer
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH