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+---
+title: HP 50g alternative firmware
+layout: default
+language: en
+created: 2017-03-19 23:07:55 +0100
+updated: 2017-03-19 23:07:55 +0100
+toc: false
+tags:
+  - know-how
+  - hardware
+  - hp
+  - 50g
+  - calculator
+  - firmware
+---
+The original firmware in the HP 50g emulates a [Saturn CPU](https://en.wikipedia.org/wiki/HP_Saturn)
+like the HP 48 and HP 49 had. However, the built-in [ARM920T](https://en.wikipedia.org/wiki/ARM9#ARM920T)
+processor has more power than the Saturn.
+
+And now there's a firmware to unleash the power: **newRPL**:
+
+[Project homepage](http://hpgcc3.org/projects/newrpl)
+
+It's very usable at this point, but not all features are implemented yet. You can see the current
+status on the [detailed project status page](http://hpgcc3.org/projects/newrpl/project-status/detailed-status).