Subject: Re: [stella] A question about ROR and ROL From: "Andrew Davie" <adavie@xxxxxxxxxxxxxxxxx> Date: Wed, 15 Sep 1999 08:43:57 +1000 |
ROR rotates the carry bit into the high bit of the accumulator, and the low bit goes into the carry. ROL works the other direction. A ----- Original Message ----- From: Pete Holland <petehollandjr@xxxxxxxxx> To: <stella@xxxxxxxxxxx> Sent: Wednesday, September 15, 1999 8:28 AM Subject: [stella] A question about ROR and ROL > Does ROR, when it rotates the bits, rotate them all, or does it just > move them over and, any bits at the end, just dump them? It seems like > ASL and LSR do the later, and I can't image redundant commands in > computer programming, but I just want to make sure. > > __________________________________________________ > Do You Yahoo!? > Bid and sell for free at http://auctions.yahoo.com > > -- > Archives (includes files) at http://www.biglist.com/lists/stella/archives/ > Unsub & more at http://www.biglist.com/lists/stella/ > -- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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