diff --git a/tgt-fpga/d-virtex2.c b/tgt-fpga/d-virtex2.c index d21ffdc68..6965cb3e8 100644 --- a/tgt-fpga/d-virtex2.c +++ b/tgt-fpga/d-virtex2.c @@ -17,7 +17,7 @@ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA */ #ifdef HAVE_CVS_IDENT -#ident "$Id: d-virtex2.c,v 1.8 2003/04/04 06:20:29 steve Exp $" +#ident "$Id: d-virtex2.c,v 1.9 2003/04/05 01:35:40 steve Exp $" #endif # include "device.h" @@ -1017,7 +1017,9 @@ static void virtex2_add(ivl_lpm_t net) * inverted. To get that effect without putting an inverter on the * output of the top muxcy pin CO (which would cost a LUT) the DI * inputs are all connected to VCC instead of GND, and the CI of the - * least significant muxcy is connected to GND instead of VCC. + * least significant muxcy is connected to GND instead of VCC. The LUT + * expressions for the chained compare are configured for ==, with the + * changed CI/DI inputs performing the inversion. */ static void virtex_eq(ivl_lpm_t net) { @@ -1091,10 +1093,10 @@ static void virtex_eq(ivl_lpm_t net) mux = edif_cellref_create(edf, cell_muxcy); if (subwid == 2) { lut = edif_cellref_create(edf, cell_lut4); - edif_cellref_pstring(lut, "INIT", eq? "9009" : "6FF6"); + edif_cellref_pstring(lut, "INIT", "9009"); } else { lut = edif_cellref_create(edf, cell_lut2); - edif_cellref_pstring(lut, "INIT", eq? "9" : "6"); + edif_cellref_pstring(lut, "INIT", "9"); } jnt = edif_joint_create(edf); @@ -1324,6 +1326,9 @@ const struct device_s d_virtex2_edif = { /* * $Log: d-virtex2.c,v $ + * Revision 1.9 2003/04/05 01:35:40 steve + * Fix LUT function for chained NE. + * * Revision 1.8 2003/04/04 06:20:29 steve * Add == and some lut logic. *