gbdk | GameBoy Developer 's Kit

I'm trying to write string literals in ASM for GBDK's LCC. I can write each individual character and the compiler is working fine.

I am creating a scrolling shooter for DMG using gbdk, it is based off some youtube tutorials and this example. In fact the link is the skeleton of my program. My issue is that the screen boundary conditions aren't working properly for down and right inputs. For up and left, they work correctly however, and the code for those is basically the exact same. I have also compiled the code from the link above, and it works correctly there. Apologies in advance, I have a childish sense of humor, so the game is penis-based.

The main differences between the skeleton code and mine is that I use a meta-sprite for the player, and an array for the x and y coordinates of the player. I have tried using individual integers for the locations and changing the bounds of the screen, but nothing seems to work.

I am attempting to pass a pair of arrays of structures to a function in C.

I must use the SDCC compiler as I am compiling for Gameboy using GBDK.

When I pass the array of structures I get an error as shown below, however, if I take the function definition out completely and just cut and paste the entire function body in place of the function call, then the code compiles and runs smoothly.

For brevity I am only including the code that is relevant.