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1.9. FLATLO 39

Checking in this way that the generated behavioral description is also correct.

1.9 FLATLO

The FLATLO (FLATtens LOgical) tool inputs a hierarchical netlist and ﬂattens it to a given level in either a

vst or Alliance logical al format. The general format for using this tools is,

% flatlo [option] logical_figure [instance] output_name

The options available in FLATLO are shown in Table 1.10. If the instance is indicated it is ﬂattened in the

logical description.

Table 1.10: Options Available for the FLATLO Tool.

Option Description

-r

Flattens the target ﬁle to the catalog.

-t

Flattens the target ﬁle to the transistor level.

1.10 FLATPH

The FLATPH (FLATtens PHysical) tool ﬂattens a hierarchical symbolic layout to a given level. The tool is

used with the following commnad line.

% flatph [option] logical_figure [instance] output_name

The options available in are shown in Table 1.11. If the instance is indicated it is ﬂattened in the physical

description.

Table 1.11: Options Available for the FLATPH Tool.

Option Description

-r

Flattens the target ﬁle to the catalog.

-t

Flattens the target ﬁle to the transistor level.

1.11 FMI

The FMI (Finite state machine MInimizer) tool takes a FSM description (.fsm ﬁle) and minimizes it into an

equivalent reduced (in the number of states) FSM. We use this tool using the following command.

fmi [-V] input_file output_file

The options available in FMI are shown in Table 1.12. Let’s apply this tool to the FSM we generated in the

Table 1.12: Options Available for the FMI Tool.

Option Description

-V

Verbose mode. Each step of the minimization is displayed.

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