ModelSim SE User's Manual - Electrical and Computer Engineering

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UM-628 H - Logic Modeling hardware models VHDL hardware model interface ModelSim SE User’s Manual ModelSim VHDL interfaces to a hardware model through a foreign architecture. The foreign architecture contains a foreign attribute string that associates a specific hardware model with the architecture. On elaboration of the foreign architecture, the simulator automatically loads the hardware modeler software and establishes communication with the specific hardware model. The ModelSim software locates the hardware modeler interface software based on entries in the modelsim.ini initialization file. The simulator and the hm_entity tool (for creating foreign architectures) both depend on these entries being set correctly. These entries are found under the [lmc] section of the default modelsim.ini file located in the ModelSim installation directory. The default settings are as follows: [lmc] ; ModelSim's interface to Logic Modeling's hardware modeler SFI software libhm = $MODEL_TECH/libhm.sl ; ModelSim's interface to Logic Modeling's hardware modeler SFI software (Windows NT) ; libhm = $MODEL_TECH/libhm.dll ; Logic Modeling's hardware modeler SFI software (HP 9000 Series 700) ; libsfi = /lib/hp700/libsfi.sl ; Logic Modeling's hardware modeler SFI software (IBM RISC System/6000) ; libsfi = /lib/rs6000/libsfi.a ; Logic Modeling's hardware modeler SFI software (Sun4 Solaris) ; libsfi = /lib/sun4.solaris/libsfi.so ; Logic Modeling's hardware modeler SFI software (Window NT) ; libsfi = /lib/pcnt/lm_sfi.dll ; Logic Modeling's hardware modeler SFI software (Linux) ; libsfi = /lib/linux/libsfi.so The libhm entry points to the ModelSim dynamic link library that interfaces the foreign architecture to the hardware modeler software. The libsfi entry points to the Logic Modeling dynamic link library software that accesses the hardware modeler. The simulator automatically loads both the libhm and libsfi libraries when it elaborates a hardware model foreign architecture. By default, the libhm entry points to the libhm.sl supplied in the ModelSim installation directory indicated by the MODEL_TECH environment variable. ModelSim automatically sets the MODEL_TECH environment variable to the appropriate directory containing the executables and binaries for the current operating system. If you are running the Windows operating system, then you must comment out the default libhm entry (precede the line with the ";" character) and uncomment the libhm entry for the Windows operating system. Uncomment the appropriate libsfi entry for your operating system, and replace with the path to the hardware modeler software installation directory. In addition, you must set the LM_LIB and LM_DIR environment variables as described in Logic Modeling documentation from Synopsys.
Creating foreign architectures with hm_entity VHDL hardware model interface UM-629 The ModelSim hm_entity tool automatically creates entities and foreign architectures for hardware models. Its usage is as follows: Syntax hm_entity [-xe] [-xa] [-c] [-93] Arguments -xe Do not generate entity declarations. -xa Do not generate architecture bodies. -c Generate component declarations. -93 Use extended identifiers where needed. Hardware model shell software filename (see Logic Modeling documentation from Synopsys for details on shell software files) By default, the hm_entity tool writes an entity and foreign architecture to stdout for the hardware model. Optionally, you can include the component declaration (-c), exclude the entity (-xe), and exclude the architecture (-xa). Once you have created the entity and foreign architecture, you must compile it into a library. For example, the following commands compile the entity and foreign architecture for a hardware model named LMTEST: % hm_entity LMTEST.MDL > lmtest.vhd % vlib lmc % vcom -work lmc lmtest.vhd To instantiate the hardware model in your VHDL design, you will also need to generate a component declaration. If you have multiple hardware models, you may want to add all of their component declarations to a package so that you can easily reference them in your design. The following command writes the component declaration to stdout for the LMTEST hardware model. % hm_entity -c -xe -xa LMTEST.MDL Paste the resulting component declaration into the appropriate place in your design or into a package. The following is an example of the entity and foreign architecture created by hm_entity for the CY7C285 hardware model: library ieee; use ieee.std_logic_1164.all; entity cy7c285 is generic ( DelayRange : STRING := "Max" ); port ( A0 : in std_logic; ModelSim SE User’s Manual
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ModelSim® Advanced Verification an
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Table of Contents 1 - Introduction
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Delta delays . . . . . . . . . . .
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ModelSim Verilog system tasks and f
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VHDL: instantiating SystemC . . . .
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Creating waveforms from patterns .
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14 - PSL Assertions (UM-359) What a
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17 - Signal Spy (UM-417) Introducti
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Starting the debugger . . . . . . .
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Steps in flow . . . . . . . . . . .
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1 - Introduction Chapter contents M
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ModelSim simulation task overview M
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Basic steps for simulation UM-25 Li
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ModelSim modes of operation ModelSi
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ModelSim graphic interface overview
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Sections in this document Sections
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Sections in this document UM-33 H -
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Where to find our documentation Whe
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2 - Projects Chapter contents Intro
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Project conversion between versions
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workspace Getting started with proj
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Step 3 — Compiling the files Gett
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The Project tab Sorting the list Th
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Grouping files Changing compile ord
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Optimization Configurations Creatin
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Organizing projects with folders UM
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Specifying file properties and proj
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Accessing projects from the command
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3 - Design libraries Chapter conten
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Archives Design library overview UM
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Managing library contents Working w
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Moving a library Working with desig
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Alternate IEEE libraries supplied R
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Referencing source files with locat
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Importing FPGA libraries Importing
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4 - VHDL simulation Chapter content
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Compiling VHDL files Creating a des
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Differences between language versio
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Compiling VHDL files UM-77 bit stri
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Default binding Simulating VHDL des
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Simulating VHDL designs UM-81 In th
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Creating an elaboration file Loadin
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Example Simulating with an elaborat
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Controlling checkpoint file compres
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Using STD_INPUT and STD_OUTPUT with
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Reading and writing hexadecimal num
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VITAL specification and source code
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Compiling and simulating with accel
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init_signal_driver() init_signal_sp
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to_time() Util package UM-99 to_tim
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Modeling memory ’87 and ’93 exa
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if (mwrite = '1') then ram(address)
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BEGIN return mem(to_integer(addr));
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BEGIN FOR i IN 0 TO 1023 LOOP we
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Converting an integer into a bit_ve
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5 - Verilog simulation Chapter cont
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Introduction ModelSim Verilog basic
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Incremental compilation Compiling V
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Library usage Compiling Verilog fil
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Verilog-XL compatible compiler argu
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Compiling Verilog files UM-121 The
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Verilog generate statements Compili
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Naming the optimized design Optimiz
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Optimizing Verilog designs UM-127 I
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Simulating Verilog designs Simulato
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`timescale, -t, and rounding Simula
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Simulating Verilog designs UM-133 T
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Simulating Verilog designs UM-135 M
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+pulse_e_style_onevent +pulse_int_e
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Creating an elaboration file Loadin
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Example Simulating with an elaborat
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Controlling checkpoint file compres
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Distributed delay mode In distribut
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System tasks and functions UM-147 a
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File I/O tasks $fclose $fopen $fwri
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System tasks and functions UM-151 T
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Compiler directives Compiler direct
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ModelSim compiler directives The fo
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Determining which memories were imp
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6 - SystemC simulation Chapter cont
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Supported platforms and compiler ve
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Usage flow for SystemC-only designs
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Code modification examples Compilin
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Example 3 Compiling SystemC files U
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Restrictions on compiling with HP a
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Issues with C++ templates Templatiz
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Simulating SystemC designs Loading
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Initialization and cleanup of Syste
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Waveform compare Debugging the desi
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Debugging the design UM-179 The gdb
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Viewing FIFOs SystemC object and ty
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OSCI 2.1 features supported Differe
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Troubleshooting SystemC errors UM-1
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7 - Mixed-language simulation Chapt
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Usage flow for mixed-language simul
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Simulator resolution limit Runtime
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Mapping data types Verilog to VHDL
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VHDL to Verilog mappings Mapping da
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Channels Ports Verilog mapping sc_b
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Verilog sc_logic sc_bit bool SuX 'X
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SystemC VHDL sc_int, sc_uint bit_ve
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VHDL: instantiating Verilog Verilog
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The generic type is determined by t
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Verilog: instantiating VHDL VHDL in
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SystemC: instantiating Verilog Veri
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Example #2 SystemC: instantiating V
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}; } #endif // Connect ports chip->
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Example of parameter use format_cha
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SystemC: instantiating VHDL VHDL in
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Example SystemC: instantiating VHDL
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); END ringbuf; ARCHITECTURE RTL OF
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vgencomp component declaration vgen
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8 - WLF files (datasets) and virtua
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Saving a simulation to a WLF file O
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Managing multiple datasets WLF file
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Saving at intervals with Dataset Sn
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Virtual Objects (User-defined buses
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Virtual regions Virtual types Virtu
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9 - Waveform analysis Chapter conte
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Introduction Objects you can view W
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Wave window overview UM-241 Here is
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List window overview List window ov
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Measuring time with cursors in the
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Jumping to a signal transition Meas
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Zooming the Wave window display Zoo
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Searching in the Wave and List wind
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Using the Expression Builder for ex
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Formatting the Wave window Setting
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Formatting the Wave window UM-257 3
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Formatting the List window Setting
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Saving the window format Saving the
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Saving List window data to a file S
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Configuring new line triggering in
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Configuring new line triggering in
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Miscellaneous tasks Examining wavef
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Comparison Wizard Waveform Compare
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Test Dataset Waveform Compare UM-27
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Adding regions Waveform Compare UM-
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Clocked comparison Waveform Compare
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Viewing differences in the Wave win
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Compare icons Waveform Compare UM-2
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Comparing hierarchical and flattene
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10 - Generating stimulus with Wavef
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Getting started You can use Wavefor
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Creating waveforms from patterns Cr
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Editing waveforms GR-291 These comm
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Simulating directly from waveform e
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Driving simulation with the saved s
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Saving the waveform editor commands
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11 - Tracing signals with the Dataf
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Adding objects to the window Adding
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Exploring the connectivity of your
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Zooming and panning Zooming with to
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Tracing the source of an unknown (X
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Finding objects by name in the Data
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Printing on Windows platforms Selec
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Symbol mapping Symbol mapping UM-31
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Configuring window options Configur
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12 - Profiling performance and memo
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Getting started Memory allocation p
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Enabling the statistical sampling p
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Interpreting profiler data Interpre
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The Call Tree view Viewing profiler
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Viewing profile details Viewing pro
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Integration with Source windows Int
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Reporting profiler results Reportin
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13 - Measuring code coverage Chapte
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Supported types ModelSim code cover
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Enabling code coverage Enabling cod
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Enabling code coverage UM-339 Next,
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Viewing coverage data in the Source
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Toggle coverage Enabling Toggle cov
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3 Produce the report with the toggl
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Excluding objects from coverage Exc
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end instance Default filter file Ex
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XML output Reporting coverage data
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Instance report with line details R
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Coverage statistics details Conditi
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Coverage statistics details UM-357
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14 - PSL Assertions Chapter content
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PSL assertion language What are ass
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Using cover directives Using assert
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REF2); signal mem_state : memory_st
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} // Check the write cycle property
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Multi-clocked properties and defaul
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Using endpoints in HDL code Example
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Restrictions Clocking endpoints Usi
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Compiling and simulating assertions
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Enabling/disabling failure and pass
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Setting failure and pass limits Man
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Reporting on assertions Reporting o
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15 - Functional coverage with PSL a
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Compiling and simulating functional
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Weighting coverage directives Confi
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Viewing coverage directives in the
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Reporting functional coverage stati
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Tag Meaning Understanding aggregate
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Saving functional coverage data Sav
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Clearing functional coverage data C
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16 - C Debug Chapter contents Intro
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Supported platforms and gdb version
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Setting breakpoints Setting breakpo
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Stepping in C Debug Stepping in C D
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Identifying all registered function
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Auto find bp versus Auto step mode
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Debugging functions during elaborat
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VPI functions in initialization mod
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C Debug command reference C Debug c
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17 - Signal Spy Chapter contents In
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init_signal_driver Call only once S
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Example library IEEE, modelsim_lib;
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Arguments Related procedures Limita
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signal_force Syntax Returns Argumen
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signal_release Syntax Returns Argum
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$init_signal_driver Call only once
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Example `timescale 1 ps / 1 ps modu
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Related tasks Limitations Example N
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Related tasks Limitations Example N
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Example module testbench; reg relea
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18 - Standard Delay Format (SDF) Ti
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SDF specification with the GUI Erro
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Resolving errors VHDL VITAL SDF UM-
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Examples Optional arguments can be
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REMOVAL is matched to $removal: SDF
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Optional conditions Timing check po
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Interconnect delays Interconnect de
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Mistaking a component or module nam
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19 - Value Change Dump (VCD) Files
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Checkpoint/restore and writing VCD
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Example 3 — Mixed-HDL design Firs
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ModelSim VCD commands and VCD tasks
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A VCD file from source to output VH
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x) x* x+ x, $end #300 $dumpon 1! 0"
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Capturing port driver data Supporte
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Example VCD output from vcd dumppor
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20 - Tcl and macros (DO files) Chap
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Tcl commands Tcl commands UM-473 Fo
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Tcl command syntax UM-475 7 If a wo
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set command syntax Tcl command synt
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Variable substitution System comman
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ModelSim Tcl time commands Conversi
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Tcl examples This is an example of
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} if {$windowName == ""} { # Dialog
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Macros (DO files) Creating DO files
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set vFilesExist 1 } shift } if {$vh
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Using the Tcl source command with D
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The Tcl Debugger Starting the debug
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Breakpoints The Tcl Debugger UM-495
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TclPro Debugger TclPro Debugger UM-
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A - ModelSim GUI changes Appendix c
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Main window changes UM-501 See "Cus
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Main window changes UM-503 File > O
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View menu The View menu has been re
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Tools menu The 6.0 Main window Tool
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List window changes File menu The L
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File menu See "Memory windows" (GR-
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View menu The Memory window > View
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Edit menu The Signals window > Edit
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View menu The Source window > File
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B - ModelSim variables Appendix con
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Environment variables Environment v
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Library mapping with environment va
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[Library] library path variables Va
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[vcom] VHDL compiler control variab
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[vsim] simulator control variables
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Preference variables located in INI
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Commonly used INI variables Prefere
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Force command defaults Preference v
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Variable precedence Variable preced
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Special considerations for the now
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C - Error and warning messages Appe
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ModelSim message system UM-547 Ther
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Exit codes The table below describe
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Miscellaneous messages Miscellaneou
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Miscellaneous messages UM-553 model
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VSIM license lost Message text Cons
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Suggested action Multiply defined s
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D - Verilog PLI / VPI / DPI Chapter
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Registering PLI applications Regist
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Registering VPI applications Exampl
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Registering DPI applications Regist
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For Windows only: Run a preliminary
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32-bit Linux platform Compiling and
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gcc compiler gcc -c -I//modeltech/i
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For DPI imports 64-bit IBM RS/6000
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32-bit Linux platform Compiling and
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Page 579 and 580: 64-bit IBM RS/6000 platform DPI spe
Page 581 and 582: Loading shared objects with global
Page 583 and 584: VPI example The following example i
Page 585 and 586: The PLI callback reason argument Th
Page 587 and 588: The sizetf callback function The si
Page 589 and 590: Third party PLI applications Third
Page 591 and 592: IEEE Std 1364 ACC routines IEEE Std
Page 593 and 594: IEEE Std 1364 TF routines IEEE Std
Page 595 and 596: SystemVerilog DPI access routines S
Page 597 and 598: Verilog-XL compatible routines Veri
Page 599 and 600: PLI/VPI tracing The purpose of trac
Page 601 and 602: Debugging PLI/VPI/DPI application c
Page 603 and 604: E - ModelSim shortcuts Appendix con
Page 605 and 606: Main and Source window mouse and ke
Page 607 and 608: Keystrokes - UNIX Keystrokes - Wind
Page 609 and 610: Wave window mouse and keyboard shor
Page 611 and 612: F - System initialization Appendix
Page 613 and 614: Environment variables accessed duri
Page 615 and 616: Initialization sequence Initializat
Page 617 and 618: G - Logic Modeling SmartModels Appe
Page 619 and 620: Creating foreign architectures with
Page 621 and 622: Vector ports Entity details VHDL Sm
Page 623 and 624: SmartModel Windows VHDL SmartModel
Page 625 and 626: Verilog SmartModel interface Verilo
Page 627: H - Logic Modeling hardware models
Page 631 and 632: Vector ports Architecture details V
Page 633 and 634: End-User License Agreement IMPORTAN
Page 635 and 636: COMPLIED WITH THIS AGREEMENT. MENTO
Page 637 and 638: Graphics shall only use or disclose
Page 639 and 640: Index CR = Command Reference, UM =
Page 641 and 642: Stop on quit mode UM-414 C Debug se
Page 643 and 644: mem search CR-204 modelsim CR-206 n
Page 645 and 646: ange checking in VHDL CR-316, UM-74
Page 647 and 648: Add Folder GR-47 C Debug setup GR-9
Page 649 and 650: F -f CR-360 F8 function key UM-607
Page 651 and 652: Verilog modules UM-125 VHDL subprog
Page 653 and 654: Memory window GR-169 GUI changes UM
Page 655 and 656: optimizing Verilog designs design o
Page 657 and 658: eaders and drivers UM-303 readers c
Page 659 and 660: adix specifying for examine CR-163
Page 661 and 662: system tasks VCD UM-461 Verilog UM-
Page 663 and 664: U -u CR-365 unbound component GR-53
Page 665 and 666: library clause UM-64 mixed designs
Page 667 and 668: text editing UM-605 windows Active
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