From ArchaicPixels: HuC and PCEAS Documentation

Basics

Small C is a pre-standard version of C so it's close in comparison. However, there are some significant and annoying differences.

differences:

• function declaration synatax
• static variables cannot be used as parameters
• structures require a workaround
• enumerations don't exist
• function pointers require a workaround
• multidimensional arrays are not supported

HuC's Types

Name	Size	Signedness	Notes
char	8 bits	signed	The bytesize of the PCE hardware and should be used the most.
int	16 bits	signed	This is actually a type invented for convenience that is composed of two 8 bit values. Therefore, you should use this type sparingly. Additionally, it is used to denote addresses in many functions.
farptr	24 bits	N/A	A special pointer type that is used almost exclusively internally
void	N/A	N/A	This is not a valid type (even as a pointer) and cannot be used in HuC. It only in documentation for clarity of arguments and return values.

Workarounds

• To access far data (such as something stored with #incbin), use the farpeekb(), farpeekw(), or farmemget() functions.