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Author Topic: 68000 vs 68020 = 1 : 1 ?  (Read 2855 times)

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Offline patrik

Re: 68000 vs 68020 = 1 : 1 ?
« on: August 16, 2004, 11:36:26 AM »
@Apache2k:

On this page you can find some information about the card. You can also download the software for the card on that page. If you arent noticing any difference from the 68000@7.14MHz it might be so that the Hurricane 500 card is running in "68000 fallback mode" which I assume is controlled via the software for the card, so you better check that.


/Patrik
 

Offline patrik

Re: 68000 vs 68020 = 1 : 1 ?
« Reply #1 on: August 16, 2004, 02:54:52 PM »
@Apache2k:

If you look at the upper right region of this image you will see 8 identical DIP-memory-chips. That is the Hurricane 500 memory. It can be either eight 256Kx4bit DIP-memories for 1MByte of 32-bit memory or eight 1Mx4bit DIP-memories for 4MByte of 32-bit memory. The memory on the Hurricane 500 has its memory mapped in the 8MByte Zorro2 memory-space, so you will have to remove some Zorro2-memory in order to make the Hurricane 500 memory fit inside the Zorro2 memory-space. I would suggest that you remove 4MByte Zorro2-memory.

It is also not impossible that the Hurricane 500 software is needed to activate the memory.

Also note that you need the 32-bit memory on the Hurricane 500 to work to notice much more than a slight speed-increase compared to the stock 68000@7.14MHz.


/Patrik