VDP1 library

1. VDP1 basic processing guide

1.1 Purpose

• Hide hardware-related processes such as VDP1 initialization and register operations.
  Reduce the burden on application creators.
• Writing commands to VRAM is a process for speeding up applications.
  The basic processing library does not do this because the processing method seems to be different. App
  The application will be notified of the VRAM address, so it can be freely set by the application
  (VRAM writing and VRAM management are extended processing
  (Supported by the library).
  

1.2 Description

[Initial processing]

• TV mode and frame buffer erase area for each frame change
  And set the erase data.
  

[V-BLANK interrupt processing function]

• SPR_WaitDrawEnd () is used in the V_BLANKVDP interrupt handling routine and VDP1
  Check the end of drawing.