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49 lines
2.0 KiB
ArmAsm
49 lines
2.0 KiB
ArmAsm
ttl fast floating point cordic hyperbolic table (ffphthet)
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ffphthet idnt 1,1 ffp inverse hyperbolic table
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***************************************
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* (c) copyright 1981 by motorola inc. *
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***************************************
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section 9
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xdef ffphthet external definition
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*********************************************************
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* inverse hyperbolic tangent table for cordic *
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* *
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* the following table is used during cordic *
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* transcendental evaluations for log and exp. it has *
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* inverse hyperbolic tangent for 2**-n where n ranges *
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* from 1 to 24. the format is binary(31,29) *
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* precision (i.e. the binary point is assumed between *
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* bits 27 and 28 with three leading non-fraction bits.) *
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*********************************************************
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ffphthet dc.l $8c9f53d0>>3 harctan(2**-1) .549306144
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dc.l $4162bbe8>>3 harctan(2**-2) .255412812
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dc.l $202b1238>>3 harctan(2**-3)
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dc.l $10055888>>3 harctan(2**-4)
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dc.l $0800aac0>>3 harctan(2**-5)
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dc.l $04001550>>3 harctan(2**-6)
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dc.l $020002a8>>3 harctan(2**-7)
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dc.l $01000050>>3 harctan(2**-8)
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dc.l $00800008>>3 harctan(2**-9)
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dc.l $00400000>>3 harctan(2**-10)
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dc.l $00200000>>3 harctan(2**-11)
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dc.l $00100000>>3 harctan(2**-12)
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dc.l $00080000>>3 harctan(2**-13)
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dc.l $00040000>>3 harctan(2**-14)
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dc.l $00020000>>3 harctan(2**-15)
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dc.l $00010000>>3 harctan(2**-16)
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dc.l $00008000>>3 harctan(2**-17)
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dc.l $00004000>>3 harctan(2**-18)
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dc.l $00002000>>3 harctan(2**-19)
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dc.l $00001000>>3 harctan(2**-20)
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dc.l $00000800>>3 harctan(2**-21)
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dc.l $00000400>>3 harctan(2**-22)
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dc.l $00000200>>3 harctan(2**-23)
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dc.l $00000100>>3 harctan(2**-24)
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end
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