>by Hammer on 2009/1/23 15:30:49
amigaksi wrote:
>>by DiskDoctor on 2009/1/18 9:57:56
>>Hello,
...
>>Also, some time ago I encountered some post on some other forum stating that "no one has ever managed to re-create the original chipset as a Virtual Machine because it was SO PERFECT it is hardly possible if ever."
>>>If you go by PC standard hardware, it is impossible to do the cycle-exact emulation of the Amiga. Now if you have some specialized PC hardware like a multi-channel audio card, sprite-based video card, digital joystick interface, PC w/HPET timers, etc. that are all superset of the hardware of your Amiga in every respect and have software that uses these directly (not through an API or buffered scheme), then it is possible.
(SNIP)
>To have design for Windows Vista logo on PCs, the PC must have HPET timers.
>Refer to
http://msdn.microsoft.com/en-us/library/bb931844.aspxSomeone declaring a standard is different from being a standard (in reality). I can declare the new timing standard for Amigas is 28.6363Mhz not 3.579545Mhz but that does not mean everyone has it. By standard PC hardware, I mean you go to almost anyone's home and they have that hardware. The 1.19Mhz timer is there in every PC.
I can offer some upgrade h/w that uses the 28.6363Mhz crystal on the Amiga MB and uses it to increment some register but it's specialized hardware. Perhaps, I can get Microsoft to declare it an Amiga standard.