riscv
/
alliance
mirror of https://gitlab.lip6.fr/vlsi-eda/alliance.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

le reset asynchrone, eviter de tomber dans une boucle pseudo-combinatoire.

This commit is contained in:
Francois Donnet 2003-12-08 14:36:19 +00:00
parent 1eaa39208c
commit 5872794507
3 changed files with 89 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
alliance/src/loon/src/lon_lib_permute.c
View File

@ -299,12 +299,18 @@ extern chain_list* permutations(befig_list* befig)
/*build group of variables which can be permuted*/
if (befig->BEBUS) {
groupchain=permute_variable(NULL,befig->BEBUS->BIABL->CNDABL);
groupchain=permute_variable(groupchain,befig->BEBUS->BIABL->VALABL);
for (biabl = befig->BEBUS->BIABL; biabl; biabl = biabl->NEXT )
{
groupchain=permute_variable(groupchain,biabl->CNDABL);
groupchain=permute_variable(groupchain,biabl->VALABL);
}
}
else if (befig->BEREG) {
groupchain=permute_variable(NULL,befig->BEREG->BIABL->CNDABL);
groupchain=permute_variable(groupchain,befig->BEREG->BIABL->VALABL);
for (biabl = befig->BEREG->BIABL; biabl; biabl = biabl->NEXT )
{
groupchain=permute_variable(groupchain,biabl->CNDABL);
groupchain=permute_variable(groupchain,biabl->VALABL);
}
}
else if (befig->BEOUT) {
groupchain=permute_variable(NULL,befig->BEOUT->ABL);

47
alliance/src/loon/src/lon_signal_critical.c
View File

@ -41,6 +41,14 @@
#include "lon_signal_critical.h"
/***************************************************************************/
/* Global Variables */
/***************************************************************************/
static authtable *ControlLoop;
/***************************************************************************/
/*return the signal with the highest delay */
@ -107,6 +115,7 @@ static ptype_list* search_long_path(losig_list* losig, int ck_include)
ptype_list* ptype, *ret;
double max_delay=-1, delay;
cell_list* cell;
biabl_list* biabl;
if (!losig) {
fprintf(stderr,"search_long_path: NULL pointer\n");
@ -117,8 +126,20 @@ static ptype_list* search_long_path(losig_list* losig, int ck_include)
fprintf(stderr,"search_long_path: no losig name\n");
exit(1);
}
signame=(char*) losig->NAMECHAIN->DATA;
/*control combinational loop, not to recurse infinitively*/
if ( searchauthelem( ControlLoop, (char*) losig ) )
{
fprintf(stderr,"Warning: combinational loop on signal %s\n", signame );
return ret;
}
addauthelem( ControlLoop, (char*) losig, 1 );
/*search drivers*/
ptype=getptype(losig->USER,LOFIGCHAIN);
if (!ptype || !ptype->DATA) {
@ -158,12 +179,16 @@ static ptype_list* search_long_path(losig_list* losig, int ck_include)
}
befig=cell->BEFIG;
if (befig->BEREG) {
ptype=getptype(befig->BEREG->BIABL->USER,ABL_STABLE);
for ( biabl = cell->BEFIG->BEREG->BIABL; biabl; biabl = biabl->NEXT )
{
ptype=getptype(biabl->USER,ABL_STABLE);
if (ptype) {
/*do not include clock in path*/
if (!ck_include) return ret;
reg=1;
ck=ptype->DATA;
break;
}
}
}
@ -210,11 +235,19 @@ static ptype_list* search_long_path(losig_list* losig, int ck_include)
extern ptype_list* critical_path(lofig_list* lofig)
{
losig_list* losig;
ptype_list* ret;
losig=critical_output(lofig);
/*lofig is empty*/
if (!losig) return NULL;
return (ptype_list*) reverse( (chain_list*) search_long_path(losig,1));
ControlLoop = createauthtable( 100 );
ret = (ptype_list*) reverse( (chain_list*) search_long_path(losig,1));
destroyauthtable( ControlLoop );
return ret;
}
@ -225,11 +258,19 @@ extern ptype_list* critical_path(lofig_list* lofig)
extern ptype_list* critical_path_without_clock(lofig_list* lofig)
{
losig_list* losig;
ptype_list* ret;
losig=critical_output(lofig);
/*lofig is empty*/
if (!losig) return NULL;
return (ptype_list*) reverse( (chain_list*) search_long_path(losig,0));
ControlLoop = createauthtable( 100 );
ret = (ptype_list*) reverse( (chain_list*) search_long_path(losig,0));
destroyauthtable( ControlLoop );
return ret;
}

30
alliance/src/loon/src/lon_signal_netlist.c
View File

@ -104,6 +104,7 @@ extern double loins_max_T(loins_list* loins)
port_list* port;
locon_list* locon;
char* input;
biabl_list* biabl;
if (!loins) {
fprintf(stderr,"loins_max_T: NULL pointer\n");
@ -120,10 +121,15 @@ extern double loins_max_T(loins_list* loins)
/*is-it a flip-flop?*/
if (cell->BEFIG->BEREG) {
ptype=getptype(cell->BEFIG->BEREG->BIABL->USER,ABL_STABLE);
if (ptype) {
for ( biabl = cell->BEFIG->BEREG->BIABL; biabl; biabl = biabl->NEXT )
{
ptype=getptype(biabl->USER,ABL_STABLE);
if (ptype)
{
flip_flop=1;
ck=(char*) ptype->DATA;
break;
}
}
}
@ -179,6 +185,7 @@ extern double loins_max_RC(loins_list* loins, char* output)
port_list* port;
locon_list* locon;
char* input;
biabl_list* biabl;
if (!loins || !output) {
fprintf(stderr,"loins_max_RC: NULL pointer\n");
@ -195,10 +202,15 @@ extern double loins_max_RC(loins_list* loins, char* output)
/*is-it a flip-flop?*/
if (cell->BEFIG->BEREG) {
ptype=getptype(cell->BEFIG->BEREG->BIABL->USER,ABL_STABLE);
if (ptype) {
for ( biabl = cell->BEFIG->BEREG->BIABL; biabl; biabl = biabl->NEXT )
{
ptype=getptype(biabl->USER,ABL_STABLE);
if (ptype)
{
flip_flop=1;
ck=(char*) ptype->DATA;
break;
}
}
}
@ -254,6 +266,7 @@ extern double loins_delay(loins_list* loins, char* output)
port_list* port;
locon_list* locon;
char* input;
biabl_list* biabl;
if (!loins || !output) {
fprintf(stderr,"loins_delay: NULL pointer\n");
@ -270,10 +283,15 @@ extern double loins_delay(loins_list* loins, char* output)
/*is-it a flip-flop?*/
if (cell->BEFIG->BEREG) {
ptype=getptype(cell->BEFIG->BEREG->BIABL->USER,ABL_STABLE);
if (ptype) {
for ( biabl = cell->BEFIG->BEREG->BIABL; biabl; biabl = biabl->NEXT )
{
ptype=getptype(biabl->USER,ABL_STABLE);
if (ptype)
{
flip_flop=1;
ck=(char*) ptype->DATA;
break;
}
}
}