sra -32768 -1 -16384
sra -32767 -1 -16384
sra -2048 -1 -1024
sra -1023 -1 -512
sra -128 -1 -64
sra -16 -1 -8
sra -8 -1 -4
sra -1 -1 -1
sra 0 -1 0
sra 1 -1 0
sra 7 -1 3
sra 15 -1 7
sra 127 -1 63
sra 1024 -1 512
sra 2047 -1 1023
sra 32767 -1 16383
