### Description
Perform bitwise reversal of input.
### Syntax
```
brev.type d, a;
.type = { .b32, .b64 };
```
### Semantics
```
msb = (.type==.b32) ? 31 : 63;
for (i=0; i<=msb; i++) {
d[i] = a[msb-i];
}
```
### Examples
```
brev.b32 d, a;
```