Re:How to program an NES game in C
by khedoros1 on Sunday August 13, 2017 @05:36PM
(#15005095)
I've been reading the code for Ultima Underworld for a while. A lot of that is written in C, compiled in an early Borland C++ compiler. The C lib covers a few things; it's got some functions for manipulating EMS, and supports some fancy automatic overlay handling. So certainly the functions in the C library are written in assembly, wrapping calls to int67 and such.
And admittedly, it can be hard to see where the hand-coded assembly ends and the compiled C code begins. There are occasional stylistic clues, but I'm generally spending more time figuring out what something does and why it's written than I am which language each piece was coded in. Most of the file and memory handling seems to be done through calls to the C library in that game.
And admittedly, it can be hard to see where the hand-coded assembly ends and the compiled C code begins. There are occasional stylistic clues, but I'm generally spending more time figuring out what something does and why it's written than I am which language each piece was coded in. Most of the file and memory handling seems to be done through calls to the C library in that game.