# u90e3 user exit

The u90e3 user exit flips the parity
bit on the input.

## Syntax

```
result = oconv(var, ’u90e3’)
```

## Description

This user exit is useful for
reading or writing some licensee compatible tapes.

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Source: https://d3codex.com/pickbasic-flashbasic/u90e3-user-exit/ - part of the D3Codex reference.