Virtual Boy Architecture: Hidden Potential With an Unfortunate Ending by Rodrigo Copetti

Author:Rodrigo Copetti [Copetti, Rodrigo]
Language: eng
Format: epub
Tags: Nonfiction, Computers, Advanced Computing, Engineering, Computer Architecture, Application Software, Computer Graphics, Computer Science
ISBN: 9798201484781
Amazon: B0B8MPCVHT
Goodreads: 62908914
Published: 2021-02-02T13:30:00+00:00

6.3.3 Sprites

Sprites (or ‘Objects’, as Nintendo call them) are single tiles with independent coordinates, but occupy more memory.

There is a place in DRAM called OAM with 8 KB of memory allocated, here is where sprites are defined. Each sprite definition occupies 8 bytes, so up to 1024 sprites can be declared.

Each sprite have the following properties available:

X and Y coordinates.

A flag that decides whether to display it on the left screen, the right one, or both.

The Parallax offset, allowing to apply an automatic parallax: Each screen will display the sprite with a slight horizontal shift. This value is signed: If the value is positive then it will make it look far away. On the contrary, if the offset is negative it will make it look closer.

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