signed -129 -> FF 7F -> -129
signed -128 -> 80 -> -128
signed -1 -> FF -> -1
signed 0 -> 00 -> 0
signed 1 -> 01 -> 1
signed 127 -> 7F -> 127
signed 128 -> 00 80 -> 128
signed 255 -> 00 FF -> 255
signed 256 -> 01 00 -> 256
same FF: signed=-1; positive-magnitude=255
padding: 00 00 7F -> 7F
empty: signed=NumberFormatException; positive-magnitude=0
unsigned-width1 0 -> 00
unsigned-width1 127 -> 7F
unsigned-width1 128 -> 80
unsigned-width1 255 -> FF
unsigned-width2 128 -> 00 80
rejected: 256-in-width1; negative-value; width0; width33
unsigned-width2-oracle=65536; wide-boundaries=4,8,16,32
PASS 65583
