Raster interrupt

A raster interrupt is a computer interrupt signal that is used for display timing purposes. It is usually, though not always, generated by the system's graphics chip. On some platforms the feature is called Horizontal Blank Interrupt (HBI). Several popular home computers and video game consoles included graphics chips supporting raster interrupts or had features that could be combined to work like raster interrupts. Dates below reflect the year the chips were designed/committed to silicon.

Raster interrupt

A raster interrupt is a computer interrupt signal that is used for display timing purposes. It is usually, though not always, generated by the system's graphics chip. On some platforms the feature is called Horizontal Blank Interrupt (HBI). Several popular home computers and video game consoles included graphics chips supporting raster interrupts or had features that could be combined to work like raster interrupts. Dates below reflect the year the chips were designed/committed to silicon.