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Subject: RE: [stella] Stack pointer. Some questions From: "Sean M." <sigma_zk@xxxxxxxxx> Date: Mon, 10 May 2004 13:07:45 -0700 (PDT) |
The magic word is "amortize": STX $ZP LDX $ZP ; 6 cycles . . . STX $ZP LDX $ZP ; 12 cycles . . . STX $ZP LDX $ZP ; 18 cycles TSX STX $ZP ; 5 cycles . . . TXS TSX ; 9 cycles . . . TXS TSX ; 13 cycles . . . LDX $ZP TXS ; 18 cycles We have already broken even on cycles, and are even ahead by two bytes. If you are just loading X and not also storing it, the divergence is slower but still present. __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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