Re: BBR/BBS 65C02 instruction cycle counts

From: smf <>
Date: Fri, 1 Jul 2016 15:22:46 +0100
Message-ID: <>
On 01/07/2016 15:21, smf wrote:
> So an apple 2c probably would be fine, this manual mentions them.

Sorry, my internet connection is dying with windows 10 insider previews. 
I was right, apple 2c doesn't have them.

The manual mentions them by saying:

"(The //c uses the version of the 65C02 produced by NCR Corporation. 
Another version, produced by Rockwell International Corporation, 
supports all of the NCR instructions and four additional ones called SMB 
(set memory bit), RMB (reset memory bit), BBS (branch on bit set), and 
BBR (branch on bit reset). You cannot use these instructions on the //c.) "

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Received on 2016-07-01 15:00:08

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