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31 lines
745 B
Plaintext
31 lines
745 B
Plaintext
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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+ Self modifying code on the adds in inner loop
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+ inline lookup_map (or at least a copy of it)
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maybe code that detects if spacex/spacey add
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incremented and just skip the lookup (avoid the need
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for the cache code)
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+ Unroll inner loop? Might not help much since we are
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self-modifying and would have to duplicate
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that.
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short term:
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longer term:
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sky -- color looks too much like grass on monochrome display
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map -- adjust x/y to better match real position
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name entry screen
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inventory screen
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collision detection
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after game over, return to title screen
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save/restore game
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