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ALTFP_SQRT Parameters
Table 8-6: ALTFP_SQRT Parameters
Parameter Name Type Required Description
WIDTH_EXP Integer Yes Specifies the precision of the exponent. If this
parameter is not specified, the default is 8. The bias of
the exponent is always set to 2 (WIDTH_EXP -1) -1, that
is, 127 for the single-precision format and 1023 for the
double-precision format. The value of the WIDTH_EXP
parameter must be 8 for the single-precision format,
11 for the double-precision format, and a minimum of
11 for the single-extended precision format. The value
of the WIDTH_EXP parameter must be less than the
value of the WIDTH_MAN parameter, and the sum of the
WIDTH_EXP and WIDTH_MAN parameters must be less
than 64.
WIDTH_MAN Integer Yes Specifies the value of the mantissa. If this parameter is
not specified, the default is 23. When the WIDTH_EXP
parameter is 8 and the floating-point format is single-
precision, the WIDTH_MAN parameter value must be 23.
Otherwise, the value of the WIDTH_MAN parameter must
be a minimum of 31. The value of the WIDTH_MAN
parameter must be greater than the value of the
WIDTH_EXP parameter. The sum of the WIDTH_EXP and
WIDTH_MAN parameters must be less than 64.
ROUNDING String Yes Specifies the rounding mode. The default value is TO_
NEAREST. Other rounding modes are not supported.
PIPELINE Integer Yes Specifies the number of clock cycles for the square
root results of the result[] port. Values are WIDTH_
MAN + 5 and ((WIDTH_MAN + 5/2)+2) as specified by
truncating the radix point.
8-6
ALTFP_SQRT Parameters
UG-01058
2014.12.19
Altera Corporation
ALTFP_SQRT
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- 101 Innovation Drive 1
- San Jose, CA 95134 1
- Contents 2
- About Floating-Point IP Cores 7
- Design Flow 8
- Using the Parameter Editor 10
- File Name Description 12
- Upgrading IP Cores 15
- Related Information 18
- Floating-Point Formats 19
- Special Case Numbers 20
- Non-IEEE-754 Standard Format 21
- Integer bits 22
- Fraction bits 22
- VHDL Component Declaration 24
- VHDL LIBRARY-USE Declaration 24
- ALTERA_FP_MATRIX_INV IP Core 25
- Triangular Matrix Inversion 29
- Matrix Multiplication 29
- Matrix Inversion Operation 29
- Precision Format Numbers 30
- Sample Matrix Data 32
- Matrix Data 33
- ALTERA_FP_MATRIX_INV Signals 34
- ALTERA_FP_MATRIX_MULT IP Core 36
- . . . N-10 . . 38
- . . . N-10 38
- ALTERA_FP_MATRIX_MULT 39
- Parameter Value Description 40
- ALTERA_FP_ACC_CUSTOM IP Core 42
- ALTERA_FP_ACC_CUSTOM Signals 44
- ALTFP_ADD_SUB IP Core 48
- ALTFP_ADD_SUB Signals 51
- ALTFP_ADD_SUB 52
- ALTFP_ADD_SUB Parameters 53
- ALTFP_DIV IP Core 55
- ALTFP_DIV Truth Table 56
- ALTFP_DIV Signals 60
- ALTFP_DIV Parameters 61
- ALTFP_MULT IP Core 63
- Parameters 66
- ALTFP_MULT Signals 67
- ALTFP_SQRT 69
- ALTFP_SQRT Truth Table 70
- ALTFP_SQRT Signals 72
- ALTFP_SQRT Parameters 74
- ALTFP_EXP IP Core 75
- ALTFP_EXP Signals 78
- ALTFP_EXP 79
- ALTFP_EXP Parameters 80
- ALTFP_INV IP Core 81
- ALTFP_INV_SQRT IP Core 87
- ALTFP_INV_SQRT 90
- ALTFP_LOG 93
- ALTFP_ATAN IP Core 99
- ALTFP_ATAN Parameters 100
- Parameter 101
- Type Required Description 101
- ALTFP_SINCOS IP Core 102
- ALTFP_SINCOS Signals 103
- ALTFP_SINCOS Parameters 104
- ALTFP_ABS IP Core 105
- UG-01058 106
- 2014.12.19 106
- ALTFP_ABS Signals 107
- ALTFP_ABS 108
- ALTFP_ABS Parameters 109
- ALTFP_COMPARE IP Core 111
- Format Numbers 112
- ALTFP_COMPARE Signals 113
- ALTFP_COMPARE Parameters 114
- ALTFP_CONVERT IP Core 116
- ALTFP_CONVERT Output Latency 117
- Point Format Numbers 121
- Time Event 122
- ALTFP_CONVERT Signals 123
- ALTFP_CONVERT Parameters 125
- ALTERA_FP_FUNCTIONS IP Core 128
- Function Description 129
- ALTERA_FP_FUNCTIONS Signals 151
- Altera Corporation 152
- Send Feedback 152
- Document Revision History 156
- Date Document 157
- Changes Made 157
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