K E Y F E A T U R E S
D E L I V E R A B L E S
● Direct replacement for C double, float
software functions such as: +, -, *, /,==,
!=,>=, <=, <, >
♦
♦
Source code:
◊ VHDL Source Code or/and
◊ VERILOG Source Code or/and
◊ Encrypted Netlist or/and
◊ plain text EDIF netlist
VHDL & VERILOG test bench environ-
ment
● Configurability of all available functions
● C interface supplied for all popular compil-
ers: GNU C/C++, 8051 compilers
● No programming required
◊ Active-HDL automatic simulation mac-
ros
● IEEE-754 Double precision real format
support – double type
◊ NCSim automatic simulation macros
◊ ModelSim automatic simulation macros
◊ Tests with reference responses
Technical documentation
◊ Installation notes
◊ HDL core specification
◊ Datasheet
Synthesis scripts
Example application
Technical support
◊ IP Core implementation support
◊ 3 months maintenance
● IEEE-754 Single precision real format
support – float type
♦
● 8-bit, 16-bit 32-bit and 52-bit integers for-
mat supported – integer types
● Flexible arguments and result registers
location
♦
♦
♦
● Performs the following functions:
○ FADD, FSUB – addition, subtraction
○ FMUL, FDIV
○ FSQRT
– multiplication, division
– square root
●
Delivery the IP Core updates, minor
and major versions changes
●
●
Delivery the documentation updates
Phone & email support
○ FXAM
– examine input data
– comparison
○ FUCOM
○ FCLD, FILD
– 8-bit, 16-bit integer to dou-
ble
○ FLLD, FELD
– 32-bit, 52-bit integer to
– double to 8-bit, 16-bi inte-
– double to 32-bit, 52-bit in-
double
○ FCST, FIST
ger
○ FLST, FEST
teger
○ FFLD
○ FFST
– float to double
– double to float
● Exceptions built-in routines
● Masks each exception indicator:
○ Precision lack PE
○ Underflow result UE
○ Overflow result OE
○ Invalid operand IE
○ Division by zero ZE
○ Denormal operand DE
● Fully configurable
● Fully synthesizable, static synchronous
design with no internal tri-states
All trademarks mentioned in this document
are trademarks of their respective owners.
http://www.DigitalCoreDesign.com
http://www.dcd.pl
Copyright 1999-2007 DCD – Digital Core Design. All Rights Reserved.
DCD [ DIGITAL CORE DESIGN ]
