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461 | /**
* Copyright (c) 2015-2024 by Altair Engineering, Inc.
* All rights reserved.
*
* Altair Engineering, Inc. makes this software available as part of the Vision
* tool platform. As long as you are a licensee of the Vision tool platform
* you may make copies of the software and modify it to be used within the
* Vision tool platform, but you must include all of this notice on any copy.
* Redistribution without written permission to any third party, with or
* without modification, is not permitted.
* Altair Engineering, Inc. does not warrant that this software is error free
* or fit for any purpose. Altair Engineering, Inc. disclaims any liability
* for all claims, expenses, losses, damages and costs any user may incur as a
* result of using, copying or modifying the software.
*/
%{
#include <stdio.h>
/* OS includes */
#include "zos/zassert.h"
#include "zos/zmessage.h"
#include "zos/zosmem.h"
#include "zos/zos.h"
#include "zos/ztypes.h"
#include "zos/zerror.h"
/* ZDB includes */
#include "zdb/zdb.h"
extern int ndllex();
extern unsigned Curline;
extern DB* zdb;
static Module* module;
static Module* duplModule;
static void ndlerror(const char* msg) {
printf("%d %s\n", Curline, msg);
}
static PortFlags portFlags;
static int portNameCmp(const void* objP1, const void* objP2) {
Port* p1 = (Port*)objP1;
Port* p2 = (Port*)objP2;
return zStrcmpAlphaNum(p1->name, p2->name);
}
/**
* For all instances of oldCell create a new instance of newCell.
*/
static zBool reInstance(DB* db, Cell* oldCell, Cell* newCell) {
int m, i, p;
int cellCount = LISTLEN(db->cellList);
/**
* If the new cell has less ports than the old cell then
* reInstance() cannot work.
*/
if (LISTLEN(newCell->portList) < LISTLEN(oldCell->portList)) {
zPrintError("Too few ports in %.128s", newCell->name);
return zFalse;
}
/* Loop over all cells */
for (m = 0; m < cellCount; m++) {
Module* module;
Cell* cell = db->cellList[m];
int instCount;
/* Skip primitive cells*/
if (zCellIsPrimitive(cell)) continue;
module = (Module*)cell;
instCount = LISTLEN(module->instList);
/* Loop over all instances in this module */
for (i = 0; i < instCount; i++) {
Inst* inst = module->instList[i];
Inst* newInst;
/* Skip all instances that do not reference the given cell */
if (inst->cellRef != oldCell) continue;
/* Create a new instance of the new cell */
newInst = zNewInst(db, module, inst->name, newCell);
/**
* Loop over all pins of the old instance.
* Search the pinName at the new cell and connect
* the net also the new instance.
*/
for (p = 0; p < PINCOUNT(inst); p++) {
Pin* pin = inst->pin+p;
Net* net = pin->net;
const char* pname = oldCell->portList[p].name;
int pinNo = zSearchPort(db,newCell,pname,zTrue,zFalse);
if (!net) continue;
if (pinNo == -1) {
newInst->flags |= InstFZombie;
newCell->flags |= CellFZombie;
zDeleteZombies(db);
return zFalse;
}
zNewPinRef(db, net, newInst, pinNo);
}
inst->flags |= InstFZombie;
}
}
oldCell->flags |= CellFZombie;
zDeleteZombies(db);
return zTrue;
}
/**
* Create port buses of ports at the given cell. The bus delimiter is '-'.
*/
static void createPortBus(DB* zdb, Cell* cell) {
int i, len;
zAssert(cell);
zAssert(cell->refCount == 0);
len = LISTLEN(cell->portList);
for (i=0; i < len; i++) {
zBool ok = zTableRemoveObj(zdb, &cell->portTable,
cell->portList[i].name, &i);
if (!ok) printf("zTableRemoveObj ERR\n");
}
zListSort(cell->portList, portNameCmp);
for (i=0; i < len; i++) {
Net* net;
zTableInsert(zdb, &cell->portTable, cell->portList[i].name, &i);
net = zNewNet(zdb, (Module*)cell, cell->portList[i].name);
zNewPortRef(zdb, net, cell, i);
}
for (i=0; i < len; i++) {
char* name = cell->portList[i].name;
char* delim = zStrrchr(name, '-');
int portBusNo;
zBool ok;
if (!delim) continue;
*delim = '\0';
portBusNo = zSearchPortBus(zdb, cell, name, zTrue, zFalse);
if (portBusNo == -1) {
portBusNo = zNewPortBus(zdb, cell, name, cell->portList[i].flags);
}
*delim = '-';
ok = zNewPortBusMember(zdb, cell, portBusNo, i);
if (!ok) printf("ERR: %s\n", zGetError());
}
}
static void createNetBus(DB* zdb, Module* module) {
int i, len;
int busIndex = -1;
len = LISTLEN(module->netList);
for (i=0; i < len; i++) {
Net* net = module->netList[i];
NetBus* netBus;
char* name = net->name;
char* delim = zStrrchr(name, '-');
zBool ok;
if (!delim) continue;
*delim = '\0';
netBus = zSearchNetBus(zdb, module, name, zTrue, zFalse);
if (!netBus) netBus = zNewNetBus(zdb, module, name, 1);
if (busIndex < 0) {
int j;
for (j = 0; j < LISTLEN(module->netBusList); j++) {
if ((module->netBusList[j]) == netBus) {
busIndex = j;
break;
}
}
zAssert(busIndex >= 0);
}
*delim = '-';
ok = zNewNetBusMemberByIndex(zdb, module, busIndex, net);
if (!ok) {
printf("ERR: %s\n", zGetError());
}
}
}
static void createPortIfNeeded(DB* zdb, Cell* cell, const char* name,
PortFlags dir) {
int portNo = zSearchPort(zdb, cell, name, zTrue, zFalse);
if (portNo < 0) {
portNo = zNewPort(zdb, cell, name, dir);
} else {
cell->portList[portNo].flags |= dir;
}
}
static Cell* createCell(DB* zdb, const char* name, const char** outPorts,
const char** inPorts) {
Cell* cell;
int i, len;
/**
* Create a new cell.
*/
cell = (Cell*)zNewModule(zdb, name);
/**
* Create output ports.
*/
len = ARRAYLEN(outPorts);
for (i = 1; i < len; i+=2) zNewPort(zdb, cell, outPorts[i], PortFOut);
/**
* Create input ports.
*/
len = ARRAYLEN(inPorts);
for (i = 1; i < len; i+=2) zNewPort(zdb, cell, inPorts[i], PortFIn);
createPortBus(zdb, cell);
return cell;
}
static Cell* createCellIfNeeded(DB* zdb, const char* name,
const char** outPorts, const char** inPorts) {
Cell* cell;
Cell* newCell;
cell = zSearchCell(zdb, name, zTrue, zFalse);
newCell = createCell(zdb, name, outPorts, inPorts);
if (cell) {
if (zIdenticalInterface(cell,newCell,zTrue)) zDeleteCell(zdb, newCell);
else {
char* name = zUniqueNameAlloc(
zdb, &zdb->cellTable, newCell->name, zFalse);
zMessage_print(
ZMESSAGE_WARNING, "Creating unique name for %s", newCell->name);
zRenameCell(zdb, newCell, name ? name : newCell->name);
zFree(name);
cell = newCell;
}
} else {
zMessage_print(ZMESSAGE_WARNING, "Creating blackbox cell %s", name);
cell = newCell;
}
return cell;
}
/**
* Loop over the given conList of this cell and create the connectivity.
*/
static void connectPins(DB* zdb, Cell* cell, Module* module, Inst* inst,
const char** conList) {
int i, len = ARRAYLEN(conList);
for (i = 0; i < len; i+=2) {
Net* net;
int pinNo = zSearchPort(zdb, cell, conList[i+1], zTrue, zFalse);
zAssert(pinNo != -1);
net = zSearchNet(zdb, module, conList[i], zTrue, zFalse);
if (!net) net = zNewNet(zdb, module, conList[i]);
zFree((char*)conList[i]);
zFree((char*)conList[i+1]);
zNewPinRef(zdb, net, inst, pinNo);
}
}
%}
%union {
const char* tok;
const char** sList;
}
%token <tok> T_COMPILE
%token <tok> T_DESCRIPTION
%token <tok> T_MODULE
%token <tok> T_OUTPUT
%token <tok> T_INPUT
%token <tok> T_INOUT
%token <tok> T_DEFINE
%token <tok> T_END
%token <tok> T_IDENTIFIER
%token <tok> T_UNKNOWN
%type <tok> identifier
%type <sList> list_of_con
%right '='
%token '(' ')'
%left ';'
%left ','
%%
compile:
T_COMPILE ';' list_of_module T_END T_COMPILE ';' T_END ';'
| list_of_module
;
list_of_module:
/* empty */
| list_of_module module_block
;
module_block:
module
module_header
define
list_of_instances
T_END T_MODULE { createNetBus(zdb, module); } ';'
;
module:
T_MODULE T_IDENTIFIER {
duplModule = (Module*)zSearchCell(zdb, $2, zTrue, zFalse);
module = zNewModule(zdb, $2);
} ';'
;
module_header:
/* empty */
| module_header description
| module_header inputs
| module_header outputs
| module_header bidirect
;
description:
T_DESCRIPTION T_IDENTIFIER '(' T_IDENTIFIER ')' ';'
| T_DESCRIPTION ';'
| T_DESCRIPTION error ';' { yyerrok; }
;
inputs:
T_INPUT { portFlags = PortFIn; } list_of_names ';'
| T_INPUT error ';' { yyerrok; }
;
outputs:
T_OUTPUT { portFlags = PortFOut; } list_of_names ';'
| T_OUTPUT error ';' { yyerrok; }
;
bidirect:
T_INOUT { portFlags = PortFInOut; } list_of_names ';'
| T_INOUT error ';' { yyerrok; }
;
list_of_names:
T_IDENTIFIER { createPortIfNeeded(zdb, (Cell*)module,$1,portFlags); }
| list_of_names ','
T_IDENTIFIER { createPortIfNeeded(zdb, (Cell*)module,$3,portFlags); }
| /* empty */
;
define:
T_DEFINE {
createPortBus(zdb, (Cell*)module);
if (duplModule) {
if (zIdenticalInterface(&module->c, &duplModule->c, zTrue)) {
zDeleteCell(zdb, &module->c);
module = duplModule;
} else {
if (!reInstance(zdb, (Cell*)duplModule, (Cell*)module)) {
char* name = zUniqueNameAlloc(
zdb, &zdb->cellTable, duplModule->c.name, zFalse);
zMessage_print(
ZMESSAGE_WARNING,
"%s: Creating duplicate module %s",
zGetError(),
name ? name : duplModule->c.name);
zRenameCell(zdb, &duplModule->c,
name ? name : duplModule->c.name);
zFree(name);
}
}
}
}
;
list_of_instances:
instance
| list_of_instances instance
;
instance:
identifier '(' list_of_con ')' '=' identifier '(' list_of_con ')' ';'
{
Inst* inst;
Cell* cell;
cell = createCellIfNeeded(zdb, $6, $3, $8);
inst = zNewInst(zdb, module, $1, cell);
connectPins(zdb, cell, module, inst, $3);
connectPins(zdb, cell, module, inst, $8);
zFree((char*)$1);
zFree((char*)$6);
zArrayFree($3);
zArrayFree($8);
}
| identifier '=' '(' identifier ')' ';' {
Cell* buf;
Net *net1, *net2;
Inst* inst;
const char* iName = $4;
char* newName = NULL;
const char* bufName = "__internal_buf__";
buf = zSearchCell(zdb, bufName, zTrue, zFalse);
if (!buf) {
buf = (Cell*)zNewPrimitive(zdb, bufName, PrimFBUF);
zNewPort(zdb, buf, "O", PortFOut);
zNewPort(zdb, buf, "I", PortFIn);
}
inst = zSearchInst(zdb, module, iName, zTrue, zFalse);
if (inst) {
newName = zUniqueNameAlloc(
zdb, &module->instTable, iName, zFalse);
}
inst = zNewInst(zdb, module, newName ? newName : iName, buf);
zFree(newName);
net1 = zSearchNet(zdb, module, $1, zTrue, zFalse);
net2 = zSearchNet(zdb, module, $4, zTrue, zFalse);
if (!net1) net1 = zNewNet(zdb, module, $1);
if (!net2) net2 = zNewNet(zdb, module, $4);
zNewPinRef(zdb, net1, inst, 0);
zNewPinRef(zdb, net2, inst, 1);
zFree((char*)$1);
zFree((char*)$4);
}
| error ';' { yyerrok; }
;
list_of_con:
identifier '=' identifier { $$ = NULL;
zArrayAppendPtr(&$$, $1);
zArrayAppendPtr(&$$, $3);
}
| list_of_con ',' identifier '=' identifier { $$ = $1;
zArrayAppendPtr(&$$, $3);
zArrayAppendPtr(&$$, $5);
}
| /* empty */ {$$ = NULL;}
;
identifier:
T_IDENTIFIER { $$ = zStrdup($1); }
;
|