luke
/
abc
mirror of https://github.com/YosysHQ/abc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Value of properties can be expression. 

Example found in the 2007.03 Liberty Reference Manual that was also found
in the wild:

    input_voltage(CMOS) {
        vil : 0.3 * VDD ;
        vih : 0.7 * VDD ;
        vimin : -0.5 ;
        vimax : VDD + 0.5 ;
    }

Current implementation just parses the expression but no interpretation is done.
This commit is contained in:
Staf Verhaegen 2018-01-03 21:54:38 +00:00
parent f3dcf87cea
commit e4875df4e5
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/map/scl/sclLiberty.c
View File

@ -399,6 +399,18 @@ int Scl_LibertyBuildItem( Scl_Tree_t * p, char ** ppPos, char * pEnd )
if ( Scl_LibertySkipSpaces( p, ppPos, pEnd, 1 ) )
goto exit;
pNext = *ppPos;
while ( *pNext == '+' || *pNext == '-' || *pNext == '*' || *pNext == '/' )
{
(*ppPos) += 1;
if ( Scl_LibertySkipSpaces( p, ppPos, pEnd, 0 ) )
goto exit;
if ( Scl_LibertySkipEntry( ppPos, pEnd ) )
goto exit;
Head.End = *ppPos - p->pContents;
if ( Scl_LibertySkipSpaces( p, ppPos, pEnd, 1 ) )
goto exit;
pNext = *ppPos;
}
if ( *pNext != ';' && *pNext != '\n' )
goto exit;
*ppPos = pNext + 1;