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Simulator Command Reference ModelSim EE/PLUS Reference Manual

-value <sig_value>

Specify a value of the signal to match. Must be specified in the same radix that the selected

waveform is displayed. Case is ignored, but otherwise must be an exact string match --

don't-care bits are not yet implemented. Only one signal may be selected, but that signal

may be an array. Optional.

<n>

Specifies to find the nth match. If less than n are found, the number found is returned with

a warning message, and the cursor is positioned at the last match. Optional. The default is 1.

Examples

right -noglitch -value FF23 2

Finds the second time to the right at which the selected vector transitions to FF23, ignoring

glitches.

left

Goes to the previous transition on the selected signal.

The following examples illustrate search expressions that use a variety of signal

attributes, paths, array constants, and time variables. Such expressions follow the

"GUI_expression_format" (p236) and can be built with the aid of the "The GUI

Expression Builder" (p242).

right -expr {clk’rising && (mystate == reading) && (/top/u3/addr == 32’habcd1234)}

Searches right for an expression that evaluates to a boolean 1 when signal clk just changed

from low to high and signal mystate is the enumeration reading and signal /top/u3/addr is

equal to the specified 32-bit hex constant; otherwise is 0.

right -expr {(/top/u3/addr and 32’hff000000) == 32’hac000000}

Searches right for an expression that evaluates to a boolean 1 when the upper 8 bits of the

32-bit signal /top/u3/adder equals hex ac.

right -expr {((NOW > 23 us) && (NOW < 54 us)) && clk’rising && (mode == writing)}

Searches right for an expression that evaluates to a boolean 1 when logfile time is between

23 and 54 microseconds, and clock just changed from low to high and signal mode is

enumeration writing.

Note:

Wave window keyboard shortcuts (p187) are also available for next and previous edge searches. Tab

searches right (next) and shift-tab searches left (previous).