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Add bufif and pull devices.

This commit is contained in:
steve 2001-04-29 23:16:31 +00:00
parent 431b16639d
commit 2a44cf70b1
1 changed files with 66 additions and 5 deletions
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71
tgt-vvp/vvp_scope.c
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: vvp_scope.c,v 1.20 2001/04/26 05:12:02 steve Exp $"
#ident "$Id: vvp_scope.c,v 1.21 2001/04/29 23:16:31 steve Exp $"
#endif
# include "vvp_priv.h"
@ -39,30 +39,65 @@
*/
void draw_nexus_input(ivl_nexus_t nex)
{
ivl_net_const_t cptr;
ivl_net_logic_t lptr;
ivl_signal_t sptr;
ivl_lpm_t lpm;
unsigned idx, ndx;
ivl_nexus_ptr_t driver = 0;
for (ndx = 0 ; ndx < ivl_nexus_ptrs(nex) ; ndx += 1) {
ivl_nexus_ptr_t nptr = ivl_nexus_ptr(nex, ndx);
lptr = ivl_nexus_ptr_log(nptr);
if (lptr && (ivl_logic_type(lptr) == IVL_LO_BUFZ)) {
draw_nexus_input(ivl_logic_pin(lptr, 1));
return;
assert(driver == 0);
driver = nptr;
return; /* XXXX */
}
if (lptr && (ivl_logic_type(lptr) == IVL_LO_PULLDOWN)) {
fprintf(vvp_out, "C<0>");
assert(driver == 0);
driver = nptr;
return; /* XXXX */
}
if (lptr && (ivl_logic_type(lptr) == IVL_LO_PULLUP)) {
fprintf(vvp_out, "C<1>");
assert(driver == 0);
driver = nptr;
return; /* XXXX */
}
if (lptr && (ivl_nexus_ptr_pin(nptr) == 0)) {
fprintf(vvp_out, "L_%s", ivl_logic_name(lptr));
return;
assert(driver == 0);
driver = nptr;
return; /* XXXX */
}
sptr = ivl_nexus_ptr_sig(nptr);
if (sptr && (ivl_signal_type(sptr) == IVL_SIT_REG)) {
fprintf(vvp_out, "V_%s[%u]", ivl_signal_name(sptr),
ivl_nexus_ptr_pin(nptr));
return;
assert(driver == 0);
driver = nptr;
return; /* XXXX */
}
cptr = ivl_nexus_ptr_con(nptr);
if (cptr) {
const char*bits = ivl_const_bits(cptr);
unsigned pin = ivl_nexus_ptr_pin(nptr);
fprintf(vvp_out, "C<%c>", bits[pin]);
driver = nptr;
return; /* XXXX */
}
lpm = ivl_nexus_ptr_lpm(nptr);
@ -73,10 +108,16 @@ void draw_nexus_input(ivl_nexus_t nex)
if (ivl_lpm_q(lpm, idx) == nex) {
fprintf(vvp_out, "L_%s/%u",
ivl_lpm_name(lpm), idx);
return;
assert(driver == 0);
driver = nptr;
return; /* XXXX */
}
}
assert(ivl_nexus_ptr_drive0(nptr) == IVL_DR_HiZ);
assert(ivl_nexus_ptr_drive1(nptr) == IVL_DR_HiZ);
}
}
@ -213,6 +254,13 @@ static void draw_logic_in_scope(ivl_net_logic_t lptr)
will use the input to bufz instead. */
return;
case IVL_LO_PULLDOWN:
case IVL_LO_PULLUP:
/* Skip pullup and pulldown objects. Things that have
pull objects as inputs will instead generate the
appropriate C<?> symbol. */
return;
case IVL_LO_AND:
ltype = "AND";
init_val = 0x55;
@ -222,6 +270,14 @@ static void draw_logic_in_scope(ivl_net_logic_t lptr)
ltype = "BUF";
break;
case IVL_LO_BUFIF0:
ltype = "BUFIF0";
break;
case IVL_LO_BUFIF1:
ltype = "BUFIF1";
break;
case IVL_LO_NAND:
ltype = "NAND";
break;
@ -247,6 +303,8 @@ static void draw_logic_in_scope(ivl_net_logic_t lptr)
break;
default:
fprintf(stderr, "vvp.tgt: error: Unhandled logic type: %u\n",
ivl_logic_type(lptr));
ltype = "?";
break;
}
@ -452,6 +510,9 @@ int draw_scope(ivl_scope_t net, ivl_scope_t parent)
/*
* $Log: vvp_scope.c,v $
* Revision 1.21 2001/04/29 23:16:31 steve
* Add bufif and pull devices.
*
* Revision 1.20 2001/04/26 05:12:02 steve
* Implement simple MUXZ for ?: operators.
*