User`s manual

System Tasks
ModelSim Xilinx User’s Manual Verilog Simulation 5-73
IEEE Std 1364-1995 system tasks
The following system tasks are described in detail in the IEEE Std 1364-1995.
Timescale tasks Simulator control tasks Simulation time functions
$printtimescale $finish $realtime
$timeformat $timeformat $stime
$time
Probabilistic distribution
functions
Value change dump
(VCD) file tasks
Conversion functions for
reals
$dist_chi_square $dumpall $bitstoreal
$dist_erlang $dumpfile $itor
$dist_exponential $dumpflush $realtobits
$dist_normal $dumplimit $rtoi
$dist_poisson $dumpoff
$dist_t $dumpon
$dist_uniform $dumpvars
Display tasks File I/O tasks PLA modeling tasks
$display $fclose $async$and$array
$displayb $fdisplay $async$nand$array
$displayh $fdisplayb $async$or$array
$displayo $fdisplayh $async$nor$array
$monitor $fdisplayo $async$and$plane
$monitorb $fmonitor $async$nand$plane