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

Add support for NAND gates. (Chris H)

This commit is contained in:
steve 2007-06-06 15:46:22 +00:00
parent d16dd26660
commit f600e774d5
1 changed files with 38 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
tgt-edif/d-lpm.c
View File

@ -25,7 +25,7 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/ */
#ifdef HAVE_CVS_IDENT #ifdef HAVE_CVS_IDENT
#ident "$Id: d-lpm.c,v 1.1.2.2 2005/08/21 14:39:33 steve Exp $" #ident "$Id: d-lpm.c,v 1.1.2.3 2007/06/06 15:46:22 steve Exp $"
#endif #endif
/* /*
@ -230,6 +230,35 @@ static edif_cell_t lpm_cell_nor(unsigned siz)
return cell; return cell;
} }
static edif_cell_t lpm_cell_nand(unsigned siz)
{
unsigned idx;
edif_cell_t cell;
char name[32];
sprintf(name, "nand%u", siz);
cell = edif_xlibrary_findcell(xlib, name);
if (cell != 0)
return cell;
cell = edif_xcell_create(xlib, strdup(name), siz+1);
edif_cell_portconfig(cell, 0, "Result0", IVL_SIP_OUTPUT);
edif_cell_port_pstring(cell, 0, "LPM_Polarity", "INVERT");
for (idx = 0 ; idx < siz ; idx += 1) {
sprintf(name, "Data%ux0", idx);
edif_cell_portconfig(cell, idx+1, strdup(name), IVL_SIP_INPUT);
}
edif_cell_pstring(cell, "LPM_TYPE", "LPM_AND");
edif_cell_pinteger(cell, "LPM_Width", 1);
edif_cell_pinteger(cell, "LPM_Size", siz);
return cell;
}
static void lpm_show_header(ivl_design_t des) static void lpm_show_header(ivl_design_t des)
{ {
unsigned idx; unsigned idx;
@ -401,6 +430,11 @@ static void lpm_logic(ivl_net_logic_t net)
hookup_logic_gate( net, cell); hookup_logic_gate( net, cell);
break; break;
case IVL_LO_NAND:
cell = lpm_cell_nand(ivl_logic_pins(net)-1);
hookup_logic_gate( net, cell);
break;
case IVL_LO_XOR: case IVL_LO_XOR:
cell = lpm_cell_xor(ivl_logic_pins(net)-1); cell = lpm_cell_xor(ivl_logic_pins(net)-1);
hookup_logic_gate( net, cell); hookup_logic_gate( net, cell);
@ -969,6 +1003,9 @@ const struct device_s d_lpm_edif = {
/* /*
* $Log: d-lpm.c,v $ * $Log: d-lpm.c,v $
* Revision 1.1.2.3 2007/06/06 15:46:22 steve
* Add support for NAND gates. (Chris H)
*
* Revision 1.1.2.2 2005/08/21 14:39:33 steve * Revision 1.1.2.2 2005/08/21 14:39:33 steve
* Generate LPM for the CMP_EQ device. * Generate LPM for the CMP_EQ device.
* *