mirror of
https://github.com/YosysHQ/abc.git
synced 2026-09-04 08:33:58 +02:00
Adding commands to set and print timing constraints.
This commit is contained in:
Alan Mishchenko
+137
-36
@@ -28,24 +28,26 @@ ABC_NAMESPACE_IMPL_START
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/// DECLARATIONS ///
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////////////////////////////////////////////////////////////////////////
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static int Scl_CommandReadLib ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandWriteLib( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandReadScl ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandWriteScl( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandPrintLib( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandDumpGen ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandPrintGS ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandStime ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandTopo ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandBuffer ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandBufSize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandUnBuffer( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandMinsize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandMaxsize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandUpsize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandDnsize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandBsize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandPrintBuf( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandReadLib ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandWriteLib ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandReadScl ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandWriteScl ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandPrintLib ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandDumpGen ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandPrintGS ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandStime ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandTopo ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandBuffer ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandBufSize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandUnBuffer ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandMinsize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandMaxsize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandUpsize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandDnsize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandBsize ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandPrintBuf ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandSetConstr ( Abc_Frame_t * pAbc, int argc, char **argv );
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static int Scl_CommandPrintConstr( Abc_Frame_t * pAbc, int argc, char **argv );
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////////////////////////////////////////////////////////////////////////
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/// FUNCTION DEFINITIONS ///
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@@ -87,24 +89,26 @@ void Abc_SclLoad( SC_Lib * pLib, SC_Lib ** ppScl )
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***********************************************************************/
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void Scl_Init( Abc_Frame_t * pAbc )
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{
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Cmd_CommandAdd( pAbc, "SCL mapping", "read_lib", Scl_CommandReadLib, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "write_lib", Scl_CommandWriteLib, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "print_lib", Scl_CommandPrintLib, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "read_scl", Scl_CommandReadScl, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "write_scl", Scl_CommandWriteScl, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "dump_genlib", Scl_CommandDumpGen, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "print_gs", Scl_CommandPrintGS, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "stime", Scl_CommandStime, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "topo", Scl_CommandTopo, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "buffer", Scl_CommandBuffer, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "bufsize", Scl_CommandBufSize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "unbuffer", Scl_CommandUnBuffer, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "minsize", Scl_CommandMinsize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "maxsize", Scl_CommandMaxsize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "upsize", Scl_CommandUpsize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "dnsize", Scl_CommandDnsize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "bsize", Scl_CommandBsize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "print_buf", Scl_CommandPrintBuf, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "read_lib", Scl_CommandReadLib, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "write_lib", Scl_CommandWriteLib, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "print_lib", Scl_CommandPrintLib, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "read_scl", Scl_CommandReadScl, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "write_scl", Scl_CommandWriteScl, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "dump_genlib", Scl_CommandDumpGen, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "print_gs", Scl_CommandPrintGS, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "stime", Scl_CommandStime, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "topo", Scl_CommandTopo, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "buffer", Scl_CommandBuffer, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "bufsize", Scl_CommandBufSize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "unbuffer", Scl_CommandUnBuffer, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "minsize", Scl_CommandMinsize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "maxsize", Scl_CommandMaxsize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "upsize", Scl_CommandUpsize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "dnsize", Scl_CommandDnsize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "bsize", Scl_CommandBsize, 1 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "print_buf", Scl_CommandPrintBuf, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "set_constr", Scl_CommandSetConstr, 0 );
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Cmd_CommandAdd( pAbc, "SCL mapping", "print_constr", Scl_CommandPrintConstr,0 );
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}
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void Scl_End( Abc_Frame_t * pAbc )
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{
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@@ -1770,6 +1774,103 @@ usage:
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return 1;
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}
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/**Function*************************************************************
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Synopsis []
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Description []
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SideEffects []
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SeeAlso []
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***********************************************************************/
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int Scl_CommandSetConstr( Abc_Frame_t * pAbc, int argc, char ** argv )
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{
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extern void Abc_SclReadTimingConstr( Abc_Frame_t * pAbc, char * pFileName, int fVerbose );
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FILE * pFile;
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char * pFileName;
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int c, fVerbose = 0;
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Extra_UtilGetoptReset();
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while ( ( c = Extra_UtilGetopt( argc, argv, "vh" ) ) != EOF )
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{
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switch ( c )
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{
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case 'v':
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fVerbose ^= 1;
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break;
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case 'h':
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goto usage;
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default:
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goto usage;
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}
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}
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if ( argc != globalUtilOptind + 1 )
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goto usage;
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// get the input file name
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pFileName = argv[globalUtilOptind];
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if ( (pFile = fopen( pFileName, "rb" )) == NULL )
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{
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fprintf( pAbc->Err, "Cannot open input file \"%s\". \n", pFileName );
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return 1;
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}
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fclose( pFile );
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Abc_SclReadTimingConstr( pAbc, pFileName, fVerbose );
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return 0;
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usage:
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fprintf( pAbc->Err, "usage: set_constr [-vh] <file>\n" );
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fprintf( pAbc->Err, "\t sets timing constraints for standard-cell designs\n" );
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fprintf( pAbc->Err, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
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fprintf( pAbc->Err, "\t-h : prints the command summary\n" );
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fprintf( pAbc->Err, "\t<file> : the name of a file to read\n" );
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return 1;
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}
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/**Function*************************************************************
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Synopsis []
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Description []
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SideEffects []
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SeeAlso []
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***********************************************************************/
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int Scl_CommandPrintConstr( Abc_Frame_t * pAbc, int argc, char ** argv )
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{
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int c, fVerbose = 0;
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Extra_UtilGetoptReset();
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while ( ( c = Extra_UtilGetopt( argc, argv, "vh" ) ) != EOF )
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{
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switch ( c )
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{
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case 'v':
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fVerbose ^= 1;
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break;
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case 'h':
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goto usage;
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default:
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goto usage;
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}
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}
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printf( "Primary input driving cell = %s\n", Abc_FrameReadDrivingCell() );
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printf( "Primary output maximum load = %f\n", Abc_FrameReadMaxLoad() );
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return 0;
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usage:
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fprintf( pAbc->Err, "usage: print_constr [-vh] <file>\n" );
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fprintf( pAbc->Err, "\t prints current timing constraints\n" );
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fprintf( pAbc->Err, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
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fprintf( pAbc->Err, "\t-h : prints the command summary\n" );
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fprintf( pAbc->Err, "\t<file> : the name of a file to read\n" );
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return 1;
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}
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////////////////////////////////////////////////////////////////////////
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/// END OF FILE ///
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////////////////////////////////////////////////////////////////////////
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@@ -511,6 +511,8 @@ float Abc_BufComputeArr( Buf_Man_t * p, Abc_Obj_t * pObj )
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float DelayF, Delay = -ABC_INFINITY;
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Abc_ObjForEachFanin( pObj, pFanin, i )
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{
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if ( Vec_IntEntry(p->vOffsets, Abc_ObjId(pObj)) == -ABC_INFINITY )
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continue;
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DelayF = Abc_BufNodeArr(p, pFanin) + Abc_BufEdgeDelay(p, pObj, i);
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if ( Delay < DelayF )
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Delay = DelayF;
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@@ -525,6 +527,8 @@ float Abc_BufComputeDep( Buf_Man_t * p, Abc_Obj_t * pObj )
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float DelayF, Delay = -ABC_INFINITY;
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Abc_ObjForEachFanout( pObj, pFanout, i )
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{
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if ( Vec_IntEntry(p->vOffsets, Abc_ObjId(pFanout)) == -ABC_INFINITY )
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continue;
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DelayF = Abc_BufNodeDep(p, pFanout) + Abc_BufEdgeDelay(p, pFanout, Abc_NodeFindFanin(pFanout, pObj));
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if ( Delay < DelayF )
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Delay = DelayF;
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@@ -752,12 +756,12 @@ void Buf_ManStop( Buf_Man_t * p )
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Vec_Int_t * Abc_BufSortByDelay( Buf_Man_t * p, int iPivot )
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{
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Abc_Obj_t * pObj, * pFanout;
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int i, * pOrder;
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int i, Slack, * pOrder;
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Vec_IntClear( p->vDelays );
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pObj = Abc_NtkObj( p->pNtk, iPivot );
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Abc_ObjForEachFanout( pObj, pFanout, i )
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{
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int Slack = Abc_BufEdgeSlack(p, pObj, pFanout);
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Slack = Abc_BufEdgeSlack(p, pObj, pFanout);
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assert( Slack >= 0 );
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Vec_IntPush( p->vDelays, Abc_MaxInt(0, Slack) );
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}
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@@ -21,6 +21,7 @@
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#include "sclSize.h"
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#include "map/mio/mio.h"
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#include "misc/vec/vecWec.h"
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#include "base/main/main.h"
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ABC_NAMESPACE_IMPL_START
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@@ -505,6 +506,29 @@ void Abc_SclManReadSlewAndLoad( SC_Man * p, Abc_Ntk_t * pNtk )
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Abc_Time_t * pTime;
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Abc_Obj_t * pObj;
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int i;
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if ( Abc_FrameReadMaxLoad() )
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{
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float MaxLoad = Abc_FrameReadMaxLoad();
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// printf( "Default output load is specified (%f ff).\n", SC_LibCapFf(p->pLib, MaxLoad) );
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Abc_NtkForEachPo( pNtk, pObj, i )
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{
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SC_Pair * pLoad = Abc_SclObjLoad( p, pObj );
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pLoad->rise = SC_LibCapFromFf( p->pLib, MaxLoad );
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pLoad->fall = SC_LibCapFromFf( p->pLib, MaxLoad );
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}
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}
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if ( Abc_FrameReadDrivingCell() )
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{
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int iCell = Abc_SclCellFind( p->pLib, Abc_FrameReadDrivingCell() );
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if ( iCell == -1 )
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printf( "Cannot find the default PI driving cell (%s) in the library.\n", Abc_FrameReadDrivingCell() );
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else
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{
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// printf( "Default PI driving cell is specified (%s).\n", Abc_FrameReadDrivingCell() );
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p->pPiDrive = SC_LibCell( p->pLib, iCell );
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assert( p->pPiDrive != NULL );
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}
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}
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if ( pNtk->pManTime == NULL )
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return;
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/*
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@@ -61,6 +61,7 @@ struct SC_Man_
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Vec_Flt_t * vInDrive; // maximum input drive strength
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Vec_Flt_t * vTimesOut; // output arrival times
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Vec_Que_t * vQue; // outputs by their time
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SC_Cell * pPiDrive; // cell driving primary inputs
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// backup information
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Vec_Flt_t * vLoads2; // backup storage for loads
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Vec_Flt_t * vLoads3; // backup storage for loads
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@@ -218,6 +218,41 @@ char * Abc_SclFindGateFormula( char * pGateName, char * pOutName )
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return Mio_GateReadForm(pGate);
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}
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/**Function*************************************************************
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Synopsis [Reads timing constraints.]
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Description []
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SideEffects []
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SeeAlso []
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***********************************************************************/
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void Abc_SclReadTimingConstr( Abc_Frame_t * pAbc, char * pFileName, int fVerbose )
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{
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char Buffer[1000], * pToken;
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FILE * pFile = fopen( pFileName, "rb" );
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while ( fgets( Buffer, 1000, pFile ) )
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{
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pToken = strtok( Buffer, " \t\r\n" );
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if ( !strcmp(pToken, "set_driving_cell") )
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{
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Abc_FrameSetDrivingCell( Abc_UtilStrsav(strtok(NULL, " \t\r\n")) );
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if ( fVerbose )
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printf( "Setting driving cell to be \"%s\".\n", Abc_FrameReadDrivingCell() );
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}
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else if ( !strcmp(pToken, "set_load") )
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{
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Abc_FrameSetMaxLoad( atof(strtok(NULL, " \t\r\n")) );
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if ( fVerbose )
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printf( "Setting driving cell to be %f.\n", Abc_FrameReadMaxLoad() );
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}
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else
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printf( "Unrecognized token \"%s\".\n", pToken );
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}
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fclose( pFile );
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}
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////////////////////////////////////////////////////////////////////////
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/// END OF FILE ///
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