Fix Read instances for Sized number types

clash-lang / clash-prelude

CLaSH prelude library containing datatypes and functions for circuit design

http://www.clash-lang.org/

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Closed basile-henry closed 6 years ago

basile-henry commented 6 years ago

The Read instances for Signed, Unsigned, and Index didn't properly work for numbers using more than 64 bits.

Before:

> read ("0x1" <> Prelude.replicate 16 '0') :: Unsigned 65
0

After:

> read ("0x1" <> Prelude.replicate 16 '0') :: Unsigned 65
18446744073709551616

christiaanb commented 6 years ago

Thanks!