diff options
Diffstat (limited to 'def.c')
| -rw-r--r-- | def.c | 104 |
1 files changed, 95 insertions, 9 deletions
@@ -32,6 +32,7 @@ #include "lef.h" #include "def.h" +TRACKS *Tracks = NULL; int numSpecial = 0; /* Tracks number of specialnets */ #ifndef TCL_QROUTER @@ -178,6 +179,27 @@ DefHashNet(NET net) /* *------------------------------------------------------------ * + * DefGetTracks -- + * + * Get tracks information for the given layer. + * If no TRACKS were specified for the layer, NULL will be + * returned. + * + *------------------------------------------------------------ + */ + +TRACKS +DefGetTracks(int layer) +{ + if (Tracks) + return Tracks[layer]; + else + return NULL; +} + +/* + *------------------------------------------------------------ + * * DefAddRoutes -- * * Parse a network route statement from the DEF file. @@ -214,9 +236,6 @@ DefAddRoutes(FILE *f, float oscale, NET net, char special) refp.x1 = 0; refp.y1 = 0; - /* Set pitches and allocate memory for Obs[] if we haven't yet. */ - set_num_channels(); - /* Don't create obstructions or routes on routed specialnets inputs */ /* except for power and ground nets. */ noobstruct = ((special == (char)1) && (!(net->flags & NET_IGNORED)) && @@ -630,6 +649,7 @@ DefReadGatePin(NET net, NODE node, char *instname, char *pinname, double *home) if (gridx < 0) gridx = 0; while (1) { + if (gridx >= NumChannelsX) break; dx = (gridx * PitchX) + Xlowerbound; if (dx > drect->x2 + home[drect->layer] - EPS) break; if (dx < drect->x1 - home[drect->layer] + EPS) { @@ -640,6 +660,7 @@ DefReadGatePin(NET net, NODE node, char *instname, char *pinname, double *home) if (gridy < 0) gridy = 0; while (1) { + if (gridy >= NumChannelsY) break; dy = (gridy * PitchY) + Ylowerbound; if (dy > drect->y2 + home[drect->layer] - EPS) break; if (dy < drect->y1 - home[drect->layer] + EPS) { @@ -747,6 +768,9 @@ DefReadNets(FILE *f, char *sname, float oscale, char special, int total) NULL }; + /* Set pitches and allocate memory for Obs[] if we haven't yet. */ + set_num_channels(); + if (Numnets == 0) { // Initialize net and node records @@ -896,9 +920,12 @@ DefReadNets(FILE *f, char *sname, float oscale, char special, int total) while (token && (*token != ';')) token = DefAddRoutes(f, oscale, net, special); // Treat power and ground nets in specialnets as fixed - if (subkey == DEF_NETPROP_ROUTED && special == (char)1) + if ((subkey == DEF_NETPROP_ROUTED || + subkey == DEF_NETPROP_FIXED) && + special == (char)1) { if (net->netnum == VDD_NET || net->netnum == GND_NET) fixed++; + } break; } } @@ -933,8 +960,8 @@ DefReadNets(FILE *f, char *sname, float oscale, char special, int total) if (processed == total) { if (Verbose > 0) - Fprintf(stdout, " Processed %d%s nets total.\n", processed, - (special) ? " special" : ""); + Fprintf(stdout, " Processed %d%s nets total (%d fixed).\n", + processed, (special) ? " special" : "", fixed); } else LefError(DEF_WARNING, "Warning: Number of nets read (%d) does not match " @@ -971,7 +998,7 @@ DefReadLocation(gate, f, oscale) int keyword; char *token; float x, y; - char mxflag, myflag; + char mxflag, myflag, r90flag; static char *orientations[] = { "N", "S", "E", "W", "FN", "FS", "FE", "FW" @@ -994,7 +1021,7 @@ DefReadLocation(gate, f, oscale) return -1; } - mxflag = myflag = (char)0; + mxflag = myflag = r90flag = (char)0; switch (keyword) { @@ -1011,10 +1038,20 @@ DefReadLocation(gate, f, oscale) myflag = 1; break; case DEF_EAST: + r90flag = 1; + break; case DEF_WEST: + r90flag = 1; + mxflag = 1; + myflag = 1; + break; case DEF_FLIPPED_EAST: + r90flag = 1; + mxflag = 1; + break; case DEF_FLIPPED_WEST: - LefError(DEF_ERROR, "Error: Cannot handle 90-degree rotated components!\n"); + r90flag = 1; + myflag = 1; break; } @@ -1024,6 +1061,7 @@ DefReadLocation(gate, f, oscale) gate->orient = MNONE; if (mxflag) gate->orient |= MX; if (myflag) gate->orient |= MY; + if (r90flag) gate->orient |= R90; } return 0; @@ -1760,6 +1798,18 @@ DefReadComponents(FILE *f, char *sname, float oscale, int total) drect->y2 -= gateginfo->placedY; // handle rotations and orientations here + if (gate->orient & R90) { + tmp = drect->y1; + drect->y1 = -drect->x1; + drect->y1 += gateginfo->width; + drect->x1 = tmp; + + tmp = drect->y2; + drect->y2 = -drect->x2; + drect->y2 += gateginfo->width; + drect->x2 = tmp; + } + if (gate->orient & MX) { tmp = drect->x1; drect->x1 = -drect->x2; @@ -1803,6 +1853,18 @@ DefReadComponents(FILE *f, char *sname, float oscale, int total) drect->y2 -= gateginfo->placedY; // handle rotations and orientations here + if (gate->orient & R90) { + tmp = drect->y1; + drect->y1 = -drect->x1; + drect->y1 += gateginfo->width; + drect->x1 = tmp; + + tmp = drect->y2; + drect->y2 = -drect->x2; + drect->y2 += gateginfo->width; + drect->x2 = tmp; + } + if (gate->orient & MX) { tmp = drect->x1; drect->x1 = -drect->x2; @@ -2060,6 +2122,30 @@ DefRead(char *inName, float *retscale) if (!strcmp(token, "LAYER")) { curlayer = LefReadLayer(f, FALSE); } + if (curlayer < 0) { + LefError(DEF_ERROR, "Failed to read layer; cannot parse TRACKS."); + LefEndStatement(f); + break; + } + else if (curlayer >= Num_layers) { + LefError(DEF_WARNING, "Ignoring TRACKS above number of " + "specified route layers."); + LefEndStatement(f); + break; + } + if (Tracks && (Tracks[curlayer] != NULL)) { + LefError(DEF_ERROR, "Only one TRACKS line per layer allowed; " + "last one is used."); + } + else { + if (Tracks == NULL) + Tracks = (TRACKS *)calloc(Num_layers, sizeof(TRACKS)); + Tracks[curlayer] = (TRACKS)malloc(sizeof(struct tracks_)); + } + Tracks[curlayer]->start = start / oscale; + Tracks[curlayer]->ntracks = channels; + Tracks[curlayer]->pitch = step / oscale; + if (corient == 'x') { Vert[curlayer] = 1; locpitch = step / oscale; |