HPGCC Standard Library

The HPGCC standard library contains basic code for writing applications to run on the calculator. It consists of all of the following:

• A simplified version of most parts of the C language standard library.
• Routines for interacting with the calculator hardware (interrupts, timers, buzzer, LCD controller, etc.)
• Low-level routines for reading from the calculator keyboard.
• Very simple screen graphics routines.
• An exposed interface to the underlying KOS operating system calls (for advanced users only)
• Routines to interact with data from the calculator stack, as well as other aspects of the emulated Saturn environment.