Altera Floating-Point Manuale Utente Pagina 134

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Family Function Precision Latency f
MAX
ALMs M10K
M20
K
DSP
Blocks
Logic Registers
Primary Secondary
Stratix V
(5SGXEA7K
2F40C2)
Exp base 2
Single 5 387.3 351 -- 0 2 160 1
Double 17 279.56 897 -- 0 10 995 27
Exp base e
Single 8 284.09 653 -- 0 2 350 18
Double 23 268.38 2,043 -- 0 10 1,710 44
Reciprocal
Single 9 279.33 199 -- 3 3 211 13
Double 22 241.31 764 -- 9 14 1,391 49
Reciprocal
Square
Root
Single 6 420.52 105 -- 3 2 129 9
Double 17 271.37 449 -- 8 9 1,009 47
LDExp
Single 0 -- 67 -- 0 0 0 0
Double 0 717.36 99 -- 0 0 66 0
Log base
10
Single 11 359.58 358 -- 3 3 443 29
Double 23 271.96 1,077 -- 20 11 2,252 101
Stratix V
(5SGXEA7K
2F40C2)
Log(1+x)
Single 15 338.64 748 -- 3 3 905 55
Double 27 280.98 1,911 -- 20 13 3,301 122
Log base 2
Single 11 340.37 304 -- 3 3 392 15
Double 27 258.33 1,053 -- 8 16 2,241 110
Log base e
Single 11 351.86 359 -- 3 3 439 35
Double 23 270.49 1,071 -- 20 13 2,210 94
Multiply
Single 3 399.52 136 -- 0 1 72 1
Double 4 250.75 312 -- 0 4 237 5
Power
Single 31 261.23 1,171 -- 8 12 1,492 83
Double 60 267.81 3,555 -- 13 37 5,347 244
Square
Root
Single 6 393.7 112 -- 3 2 129 7
Double 17 274.12 458 -- 8 9 1,019 41
Subtract
Single 5 320.41 360 -- 0 0 299 14
Double 7 338.52 835 -- 0 0 801 51
UG-01058
2014.12.19
ALTERA_FP_FUNCTIONS Resource Utilization and Performance
18-7
ALTERA_FP_FUNCTIONS IP Core
Altera Corporation
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