diff options
Diffstat (limited to 'qrouter.h')
| -rw-r--r-- | qrouter.h | 77 |
1 files changed, 39 insertions, 38 deletions
@@ -42,9 +42,6 @@ typedef unsigned long u_long; /* Maximum number of route layers */ #define MAX_LAYERS 9 -/* Maximum number of pins in a gate */ -#define MAX_GATE_NODES 64 - /* Cell name (and other names) max length */ #define MAX_NAME_LEN 1024 @@ -194,6 +191,11 @@ struct route_ { u_char flags; // See below for flags }; +/* Definitions for flags in struct route_ */ + +#define RT_OUTPUT 0x1 // Route has been output +#define RT_STUB 0x2 // Route has at least one stub route + /* Structure used to hold nodes, saved nodes, and stub/offset info */ typedef struct nodeinfo_ *NODEINFO; @@ -201,13 +203,19 @@ typedef struct nodeinfo_ *NODEINFO; struct nodeinfo_ { NODE nodesav; NODE nodeloc; - float stub; + float stub; // Stub route to node + float offset; // Tap offset + u_char flags; }; -/* Definitions for flags in struct route_ */ +/* Definitions for flags in stuct nodeinfo_ */ -#define RT_OUTPUT 0x1 // Route has been output -#define RT_STUB 0x2 // Route has been output +#define NI_STUB_NS 0x01 // Stub route north(+)/south(-) +#define NI_STUB_EW 0x02 // Stub route east(+)/west(-) +#define NI_STUB_MASK 0x03 // Stub route mask (N/S + E/W) +#define NI_OFFSET_NS 0x04 // Tap offset north(+)/south(-) +#define NI_OFFSET_EW 0x08 // Tap offset east(+)/west(-) +#define NI_OFFSET_MASK 0x0c // Tap offset mask (N/S + E/W) struct node_ { NODE next; @@ -230,14 +238,14 @@ typedef struct gate_ *GATE; struct gate_ { GATE next; - char *gatename; // Name of instance - GATE gatetype; // Pointer to macro record - int nodes; // number of nodes on this gate - char *node[MAX_GATE_NODES]; // names of the pins on this gate - int netnum[MAX_GATE_NODES]; // net number connected to each pin - NODE noderec[MAX_GATE_NODES]; // node record for each pin - DSEG taps[MAX_GATE_NODES]; // list of gate node locations and layers - DSEG obs; // list of obstructions in gate + char *gatename; // Name of instance + GATE gatetype; // Pointer to macro record + int nodes; // number of nodes on this gate + char **node; // names of the pins on this gate + int *netnum; // net number connected to each pin + NODE *noderec; // node record for each pin + DSEG *taps; // list of gate node locations and layers + DSEG obs; // list of obstructions in gate double width, height; double placedX; double placedY; @@ -310,12 +318,12 @@ struct routeinfo_ { // The maximum number of nets must not overrun the area used by flags, so // the maximum number of nets is 0x1fffff, or 2,097,151 nets -#define PINOBSTRUCTMASK ((u_int)0xe0000000) // takes values from below -#define STUBROUTE_NS ((u_int)0x20000000) // route north or south to reach terminal -#define STUBROUTE_EW ((u_int)0x40000000) // route east or west to reach terminal -#define STUBROUTE_X ((u_int)0x60000000) // diagonal---not routable -#define OFFSET_TAP ((u_int)0x80000000) // position needs to be offset -#define NO_NET ((u_int)0x10000000) // indicates a non-routable obstruction +#define OFFSET_TAP ((u_int)0x80000000) // tap position needs to be offset +#define STUBROUTE ((u_int)0x40000000) // route stub to reach terminal +#define PINOBSTRUCTMASK ((u_int)0xc0000000) // either offset tap or stub route +#define NO_NET ((u_int)0x20000000) // indicates a non-routable obstruction +#define ROUTED_NET ((u_int)0x10000000) // indicates position occupied by a routed + #define BLOCKED_N ((u_int)0x08000000) // grid point cannot be routed from the N #define BLOCKED_S ((u_int)0x04000000) // grid point cannot be routed from the S #define BLOCKED_E ((u_int)0x02000000) // grid point cannot be routed from the E @@ -323,23 +331,19 @@ struct routeinfo_ { #define BLOCKED_U ((u_int)0x00800000) // grid point cannot be routed from top #define BLOCKED_D ((u_int)0x00400000) // grid point cannot be routed from bottom #define BLOCKED_MASK ((u_int)0x0fc00000) -#define ROUTED_NET ((u_int)0x00200000) // indicates position occupied by a routed - // net -#define MAX_NETNUMS ((u_int)0x001fffff) // Maximum net number +#define OBSTRUCT_MASK ((u_int)0x0000000f) // with NO_NET, directional obstruction +#define OBSTRUCT_N ((u_int)0x00000008) // Tells where the obstruction is +#define OBSTRUCT_S ((u_int)0x00000004) // relative to the grid point. Nodeinfo +#define OBSTRUCT_E ((u_int)0x00000002) // offset contains distance to grid point +#define OBSTRUCT_W ((u_int)0x00000001) +#define MAX_NETNUMS ((u_int)0x003fffff) // Maximum net number -#define NETNUM_MASK ((u_int)0x101fffff) // Mask for the net number field +#define NETNUM_MASK ((u_int)0x203fffff) // Mask for the net number field // (includes NO_NET) -#define ROUTED_NET_MASK ((u_int)0x103fffff) // Mask for the net number field +#define ROUTED_NET_MASK ((u_int)0x303fffff) // Mask for the net number field // (includes NO_NET and ROUTED_NET) #define DRC_BLOCKAGE (NO_NET | ROUTED_NET) // Special case -// Definitions used along with the NO_NET bit. -#define OBSTRUCT_MASK ((u_int)0x0000000f) // Tells where obstruction is -#define OBSTRUCT_N ((u_int)0x00000008) // relative to the grid point. -#define OBSTRUCT_S ((u_int)0x00000004) // Stub[] contains distance of -#define OBSTRUCT_E ((u_int)0x00000002) // obstruction to grid point. -#define OBSTRUCT_W ((u_int)0x00000001) - // Map and draw modes #define MAP_NONE 0x0 // No map (blank background) #define MAP_OBSTRUCT 0x1 // Make a map of obstructions and pins @@ -389,13 +393,10 @@ extern u_char *RMask; extern u_int *Obs[MAX_LAYERS]; // obstructions by layer, y, x extern PROUTE *Obs2[MAX_LAYERS]; // working copy of Obs extern float *Obsinfo[MAX_LAYERS]; // temporary detailed obstruction info -extern NODEINFO Nodeinfo[MAX_LAYERS]; // stub route distances to pins and +extern NODEINFO *Nodeinfo[MAX_LAYERS]; // stub route distances to pins and // pointers to node structures. -#define NODEIPTR(x, y, l) (&(Nodeinfo[l][OGRID(x, y, l)])) -#define NODESAV(x, y, l) (Nodeinfo[l][OGRID(x, y, l)].nodesav) -#define NODELOC(x, y, l) (Nodeinfo[l][OGRID(x, y, l)].nodeloc) -#define STUBVAL(x, y, l) (Nodeinfo[l][OGRID(x, y, l)].stub) +#define NODEIPTR(x, y, l) (Nodeinfo[l][OGRID(x, y, l)]) #define OBSINFO(x, y, l) (Obsinfo[l][OGRID(x, y, l)]) #define OBSVAL(x, y, l) (Obs[l][OGRID(x, y, l)]) #define OBS2VAL(x, y, l) (Obs2[l][OGRID(x, y, l)]) |