Altera Floating-Point - Manual (Page 57)

DATAA[] DATAB[] SIGN BIT RESULT[] Overflow Underflo
w
Zero Division-
by-zero
NaN
Denormal NaN X NaN 0 0 0 0 1
Zero Normal 0/1 Zero 0 0 1 0 0
Zero Denorma
l
0/1 NaN 0 0 0 0 1
Zero Zero 0/1 NaN 0 0 0 0 1
Zero Infinity 0/1 Zero 0 0 1 0 0
Zero NaN X NaN 0 0 0 0 1
Infinity Normal 0/1 Infinity 0 0 0 0 0
Infinity Denorma
l
0/1 Infinity 0 0 0 0 0
Infinity Zero 0/1 Infinity 0 0 0 0 0
Infinity Infinity 0/1 NaN 0 0 0 0 1
Infinity NaN X NaN 0 0 0 0 1
NaN Normal X NaN 0 0 0 0 1
NaN Denorma
l
X NaN 0 0 0 1 1
NaN Zero X NaN 0 0 0 1 1
NaN Infinity X NaN 0 0 0 0 1
NaN NaN X NaN 0 0 0 0 1
ALTFP_DIV Resource Utilization and Performance
This table lists the resource utilization and performance information for the ALTFP_DIV IP core. The
information was derived using the Quartus II software version 10.0.
Table 6-3: ALTFP_DIV Resource Utilization and Performance for Stratix IV Devices
Device family Precision Optimiza‐
tion
Output
latency
Logic Usage
f
MAX
(MHz)
Adaptive
Look-Up
Tables
(ALUTs)
Dedicate
d Logic
Registers
(DLRs)
Adaptive
Logic
Modules
(ALMs)
18-bit
DSP
Stratix IV
Single
Speed 33 3,593 3,351 2,500 — 313
Area 33 1,646 2,074 1,441 — 308
Double
Speed 61 13,867 13,143 10,196 — 292
Area 61 5,125 7,360 4,842 — 267
UG-01058
2014.12.19
ALTFP_DIV Resource Utilization and Performance 6-3
ALTFP_DIV IP Core Altera Corporation
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