Technical data

Wave window

ModelSim EE Graphic Interface ModelSim EE Tutorial

This illustration shows

the same item displayed

in each wave format

outlined below. Note

that the signal labels

were also changed.

HDL items of VHDL type

integer and floating point,

and Verilog type real can

be formatted as analog in

the Wave window.

• Format: Analog Step

Displays a waveform of an

integer, real or time type,

with the height and offset

determined by the

Pixels = specification and

the value of the item.

• Format: Analog Interpolated

Displays the waveform in interpolated style.

• Format: Analog Backstep

Displays the waveform in backstep style. Used for power calculations.

• Format: Literal

Displays the waveform as a box containing the item value (if the value fits the

space available). This is the only format that can be used to list a record.

• Format: Logic

Displays values as 0, 1, X, Z, H, L, U, or -.

• Format: Event

Marks each transition during the simulation run.

• Pixels = (value + <offset>) * <scale factor>

This choice works with analog items only and allows you to decide on the scale

of the item as it is seen on the display. Value is the value of the signal at a given

time, <offset> is the number of pixels offset from zero. The <scale factor> reduces

(if less than 1) or increases (if greater than 1) the number of pixels displayed.

• Radix

The explicit choices are Symbolic, Binary, Octal, Decimal, Unsigned,

Hexadecimal, and ASCII. If you select Default the signal’s radix changes

whenever the default is changed using the radix command. Item values are not

translated if you select Symbolic.