From: Albert White - SUN Ireland (albert.white at domain ireland.sun.com)
Date: Fri 29 Jun 2001 - 15:03:03 IST
> Also, on the Amiga, the the CPU was doing far less, since a lot of the gfx
> processing and disk i/o was offloaded onto coprocessors.
Well you couldn't let the CPU do everything when there were skivies like Fat
Angus, Denise and Paula etc. to share the workload :)
[ from www.amiga-hardware.com.....
Denise: reponsible for handling the native screen modes and colour generation
and has support for up to eight hardware sprites.
The Agnus is responsible for controlling 25 system DMA channels, the
generation of system clocks in some Amiga models and for addressing CHIP RAM.
Inside Agnus is a bliiter which is desgned to move blocks of memory at high
speed as well as performing logic operations on that memory. The copper is
also found in Agnus.
PAULA is quite an odd chip in that it has a multitude of functions. Primarily
it controls sound generation and acts as the Amigas floppy drive controller.
It also handles disk I/O and has an interrupt for various system operations.
This archive was generated by hypermail 2.1.6 : Thu 06 Feb 2003 - 13:10:55 GMT