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1.27. VASY 55

Alliance. We run SYF on the mips seq.fsm ﬁle already created in that tutorial. We will run SYF as follows.

% syf -o -V mips_seq mips_seqs

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FSM Synthesizer

Alliance CAD System 5.0 20040928, syf 5.0

Author(s): Ludovic Jacomme and Chaker Sarwary

E-mail : [email protected]

--> Compile FSM file mips_seq

--> Check FSM figure outputs

--> Simplify FSM figure

--> Verify FSM figure

--> Identify reset conditions

--> Name : mips_seq

--> States : 99

--> Inputs : 32

--> Outputs : 47

--> Edges : 353

--> Stacks : 0

--> Encode FSM figure

--> One hot encoding

--> Translate FSM to BEH

--> Simplify BEH figure

--> Literals : 5019

--> Save BEH file mips_seqs

This generate using a one-hot encoding the ﬁle mips seqs.vbe that can be used to synthesize the corresponding

design in Alliance.

1.27 VASY

VASY (VHDL Analyzer for sYnthesis) is a tool that converts a VHDL description to a s ynthesizable equivalent

description usable by Alliance or other synthesis tools. VASY could handle a VHDL subset larger than the

one supported in Alliance. VASY can generate an output in VHDL or verilog format. We use VASY with the

following command.

vasy [-VpavsoipSHL] [-C num] [-E num] [-I format] [-P file] filename [outname]

The options available in VASY are shown in Table 1.26.

1.28 X2Y

X2Y is a netlist format converter. It is a tool used with the following command.

% x2y informat outformat infile outfile

There are no options in the X2Yy tool. The formats handled in X2Y are shown in Table 1.27.

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ADDER X-SC Manuale Utente Pagina 55

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