Yes, you can write C code for the SD-8516. However there are certain… limitations of the self-hosted project. First however, let's stay positive and talk about what you can do:

V1 Current Feature Set:

• Builtins (putchar, getchar, halt, yield)
• int and char* (8-bit access)
• Expressions with precedence
• Local variables
• if/else/else if
• Comparison operators
• while
• break/continue
• Multiple functions + function calls
• Function arguments
• Pointers (read, write, address-of)
• Array indexing
• String literals
• Hex literals
• Character literals
• Comments ()
• Global variables