Through simulation, I was able to previously generate a video signal, to a file, that showed at least two layers of the tile map rendering with favourable results. The results were not correct however when a scroll offset that was not a multiple of 4 was applied.
I had attempted to better understand the interaction between the CUS43 and CUS42 chips and how they must be synchronised via the Hx signals. As a result of this WIP I am unable to recreate the working rendering.
I would like to fix the rendering so that I can investigate further on the synchonization and scrolling issues as I have some ideas about how this may be working.
Through simulation, I was able to previously generate a video signal, to a file, that showed at least two layers of the tile map rendering with favourable results. The results were not correct however when a scroll offset that was not a multiple of 4 was applied.
I had attempted to better understand the interaction between the CUS43 and CUS42 chips and how they must be synchronised via the Hx signals. As a result of this WIP I am unable to recreate the working rendering.
I would like to fix the rendering so that I can investigate further on the synchonization and scrolling issues as I have some ideas about how this may be working.