$7fffffff = &17777777777 = %01111111111111111111111111111111 = 2147483647U = +2147483647 = +32767.9999847412109375
$80000000 = &20000000000 = %10000000000000000000000000000000 = 2147483648U = -2147483648 = -32768.0000000000000000
$00000000 = &00000000000 = %00000000000000000000000000000000 = 0U = +0 = +0.0000000000000000
$ffffffff = &37777777777 = %11111111111111111111111111111111 = 4294967295U = -1 = -0.0000152587890625
1073741823.500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000q1