Technical data

vcd file
ModelSim EE/SE Command Reference ModelSim Commands CR-163
vcd file
The vcd file command specifies the filename and state mapping for the VCD file
created by a vcd add command
(CR-160). The vcd file command is optional. If
used, it must be issued before any vcd add commands.
Related Verilog task: $dumpfile
Syntax
vcd file
[<filename>] [-nomap] [-map <mapping pairs>] [-direction]
[-dumpports]
Arguments
<filename>
Specifies the name of the VCD file that is created (the default is dump.vcd).
Optional.
See also
See Chapter 13 - Value Change Dump (VCD) Files for more information on VCD
files. Verilog tasks are documented in the IEEE 1364 standard.
-nomap
Affects only VHDL signals of type std_logic. Optional. It specifies that the values
recorded in the VCD file shall use the std_logic enumeration characters of
UX01ZWLH-. This option results in a non-standard VCD file because VCD
values are limited to the four state character set of x01z. By default, the std_logic
characters are mapped as follow
VHDL VCD VHDL VCD
Ux Wx
Xx L0
00H1
11- x
Zz