15 lines
186 B
NASM
15 lines
186 B
NASM
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; Calculate dual logarithm (int)
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; IN AX number
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; OUT AX dual logarithm
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log2:
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push cx
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mov cx, 16
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.loop:
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sar ax, 1
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loopnz .loop
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xchg ax, cx
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pop cx
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neg ax
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add ax, 15
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ret
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