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tfv: update some docs
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Talbot Fantasy 7
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by Deater (Vince Weaver)
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vince@deater.net
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http://www.deater.net/weave/vmwprod/tfv/
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Background
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~~~~~~~~~~
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What you've always wanted, a poorly done FF7 clone for the Apple II.
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Yes, I'm using the 40x40 15-color Low-resolution graphics mode of
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the Apple II. This means the game could in theory run on the original
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Apple II released in 1977 (if you had been fabulously rich enough to
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populate all 48k of RAM).
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Mode7 Optimization Notes
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~~~~~~~~~~~~~~~~~~~~~~~~
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Original implementation:
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Original implementation:
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Multiplying 1.0 * 2.0 = 2.0, took 707 cycles
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Multiplying 1.0 * 2.0 = 2.0, took 707 cycles
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Multiplying ff.ff * ff.ff = 0.0, took 761 cycles
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Multiplying ff.ff * ff.ff = 0.0, took 761 cycles
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4
tfv/TODO
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tfv/TODO
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mode7 speed fixes:
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mode7 speed fixes:
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+ faster multiply routine
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- If result is AABBCCDD we only need BBCC for fixed point
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result
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+ Skip key parsing if no key read
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+ Skip key parsing if no key read
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+ Self modifying code on the adds in inner loop
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+ Self modifying code on the adds in inner loop
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@ -41,7 +41,7 @@ TALBOT HALL
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HAVE YOU TRIED FINDING THE EIGENVALUES
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HAVE YOU TRIED FINDING THE EIGENVALUES
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DARTH TATER
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DARTH TATER
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IN TALBOT 0101B
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IN TALBOT 0101B
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THERE LIVED A GREAT GIANT BEE
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THERE LIVED A BIG GIANT BEE
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DINING HALL
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DINING HALL
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OSCAR
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OSCAR
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@ -158,3 +158,8 @@ ZAPPO, FREE THE GUINEA PIG
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Then RK attack
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Then RK attack
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OTHER IDEAS:
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Fountain in college park? Look at eclipse? Mermaids?
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