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@ -120,6 +120,32 @@ connection information is filled-in on the instance structure, |
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and error checks are performed. |
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*/ |
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/*--------------- Quick summary of algorithm ----------------------- |
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1. Get the spice card. Place card string into variable 'line'. |
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2. Get the name of the instance and add it to the symbol table |
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3. Locate the last token on the line and assign it to variable 'model' |
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4. Locate the model from pass 1. If it hasn't been processed yet, |
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allocate structure in ckt for it, process the parameters, and return a |
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pointer to its structure in 'thismodel' |
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5. Get model type. |
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6. Create a new instance structure in ckt for this instance. |
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------ Process the connections: here's where it gets interesting. ----- |
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7. Reset 'line'. Then read instance name again to go over it. |
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8. Read initial token. |
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9 Start loop through port tokens: |
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10. If token is a %, then read next token to get port type |
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and save this port type. Otherwise, use default port type. |
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11. Check if connection is null. If so, iterate to next conn. |
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12. Get next token. Depending upon token type (scalar or array) do |
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the following: |
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-- Scalar: Process it, then continue loop. |
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-- Array: Loop through all tokens until ] is found & process tokens. |
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Then continue outer loop over port tokens. |
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13. After looping through connection tokens, do error checks. |
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At this point, nothing should be left in 'line' |
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-------------------------------------------------------------------------*/ |
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void |
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MIF_INP2A(ckt,tab,current) |
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@ -164,20 +190,18 @@ card *current; /* the card we are to parse */ |
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#endif |
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/* get the line text from the card struct */ |
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line = current->line; |
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/* get the name of the instance and add it to the symbol table */ |
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name = MIFgettok(&line); |
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INPinsert(&name, tab); |
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/* locate the last token on the line and put it into "model" */ |
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/* locate the last token on the line (i.e. model name) and put it into "model" */ |
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while(*line != '\0') |
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model = MIFgettok(&line); |
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/* make sure the model name was there. */ |
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if(model == NULL) { |
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LITERR("Missing model on A type device"); |
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return; |
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@ -186,39 +210,26 @@ card *current; /* the card we are to parse */ |
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/* Locate model from pass 1. If it hasn't been processed yet, */ |
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/* allocate a structure in ckt for it, process its parameters */ |
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/* and return a pointer to its structure in 'thismodel' */ |
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current->error = MIFgetMod(ckt, model, &thismodel, tab); |
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if(current->error) { |
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return; |
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} |
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#ifdef TRACE |
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/* SDB debug statement */ |
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printf("In MIF_INP2A, after tokenizing, name = %s, model = %s\n", |
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name, model); |
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#endif |
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/* get the integer index into the DEVices data array for this */ |
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/* model */ |
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type = thismodel->INPmodType; |
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if((type >= DEVmaxnum) || DEVicesfl[type] == 0) { |
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LITERR("Invalid model type for A type device"); |
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return; |
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} |
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/* create a new structure for this instance in ckt */ |
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mdfast = thismodel->INPmodfast; |
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IFC(newInstance, (ckt, mdfast,(void **)&fast, name)) |
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/* initialize the code model specific elements of the inst struct */ |
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MIFinit_inst(mdfast, fast); |
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@ -226,46 +237,86 @@ card *current; /* the card we are to parse */ |
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/* Process the connections */ |
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/* *********************** */ |
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/* get the line text from the card struct */ |
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/* skipping over the name of the instance */ |
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/* and reading the first token following */ |
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/* reset 'line', and then read instance name again. */ |
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line = current->line; |
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MIFgettok(&line); |
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next_token = MIFget_token(&line,&next_token_type); |
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MIFgettok(&line); /* read instance name again . . . .*/ |
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/* OK -- now &line points to the first token after |
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the instance name and we are ready to process the connections |
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(netnames) |
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*/ |
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/* loop through the fixed number of connections expected */ |
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/* now get next token. It should be either a % token, |
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a [, or a connection (netname) which might be 'null'. |
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*/ |
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next_token = MIFget_token(&line,&next_token_type); |
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/* When we enter the loop, next_token holds the first thing *after* the instance name. |
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Upon each iteration, we start the iteration with next_token holding |
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the next *unprocessed* token. |
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The loop proceeds through the fixed number of connections expected, as defined in the |
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DEVices struct. |
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*/ |
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for(i = 0; i < DEVices[type]->DEVpublic.num_conn; i++) { |
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/* there better be at least one more token besides the model name */ |
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/* Check that the line is not finished yet. */ |
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if(*line == '\0') { |
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LITERR("Missing connections on A device"); |
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LITERR("Encountered end of line before all connections were found in model."); |
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return; |
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} |
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/* At this point, we have one of three possibilities: |
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1. next_token holds a %, and &line points to either the port type identifier (id, vd, etc) |
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2. next_token holds a netname and &line points to the thing *after* the first netname. |
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3. next_token holds a [ indicating the start of an array of ports. |
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*/ |
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/* prepare a pointer for fast access to info about this connection */ |
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conn_info = &(DEVices[type]->DEVpublic.conn[i]); |
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/* get the default port type for this connection */ |
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def_port_type = conn_info->default_port_type; |
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def_port_type_str = conn_info->default_type; |
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/* Now if we had a % token, get actual info about connection type. |
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Otherwise use default info */ |
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if(next_token_type == MIF_PERCENT_TOK) { /* we found a % */ |
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/* get the port type identifier and check it for validity */ |
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next_token = MIFget_token(&line,&next_token_type); |
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/* Note that MIFget_port_type eats the next token and advances the token pointer in line */ |
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MIFget_port_type(ckt, |
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tab, |
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current, |
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&line, |
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&next_token, |
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&next_token_type, |
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&def_port_type, |
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&def_port_type_str, |
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conn_info, |
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&status); |
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if(status == MIF_ERROR) |
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return; |
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} |
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else { /* use the default port type for this connection */ |
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def_port_type = conn_info->default_port_type; |
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def_port_type_str = conn_info->default_type; |
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} |
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/* At this point, next_token should be either a [ char, or should hold |
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the the first connection (netname) |
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*/ |
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/* set analog and event_driven flags on instance and model */ |
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if((def_port_type == MIF_DIGITAL) || (def_port_type == MIF_USER_DEFINED)) { |
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fast->event_driven = MIF_TRUE; |
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mdfast->event_driven = MIF_TRUE; |
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if((def_port_type == MIF_DIGITAL) || |
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(def_port_type == MIF_USER_DEFINED)) { |
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fast->event_driven = MIF_TRUE; |
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mdfast->event_driven = MIF_TRUE; |
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} |
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else { |
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fast->analog = MIF_TRUE; |
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mdfast->analog = MIF_TRUE; |
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fast->analog = MIF_TRUE; |
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mdfast->analog = MIF_TRUE; |
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} |
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/* check for a null connection and continue to next connection if found */ |
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/* check for a null connection and continue to next connection if found */ |
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if(next_token_type == MIF_NULL_TOK) { |
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/* make sure null is allowed */ |
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if(! conn_info->null_allowed) { |
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LITERR("NULL connection found where not allowed"); |
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@ -278,29 +329,32 @@ card *current; /* the card we are to parse */ |
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/* eat the null token and continue to next connection */ |
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next_token = MIFget_token(&line,&next_token_type); |
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continue; |
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continue; /* iterate */ |
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} |
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else { |
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/* set the null flag to false */ |
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fast->conn[i]->is_null = MIF_FALSE; |
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} |
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/* process connection as appropriate for scalar or array */ |
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/* ===== process connection as appropriate for scalar or array ====== */ |
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if(! conn_info->is_array) { /* a scalar connection - the simpler case */ |
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/* do a couple of error checks */ |
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/* If we get to there, next_token should hold a netname in the port netlist. */ |
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/* First, do a couple of error checks */ |
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if(next_token_type == MIF_LARRAY_TOK) { |
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LITERR("ERROR - Scalar connection expected, [ found"); |
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printf("ERROR - Scalar connection expected, [ found. Returning . . ."); |
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return; |
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} |
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if(next_token_type == MIF_RARRAY_TOK) { |
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LITERR("ERROR - Unexpected ]"); |
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printf("ERROR - Unexpected ]. Returning . . ."); |
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return; |
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} |
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/* If all OK, get the port data into the instance struct */ |
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/* allocating the port member of the instance struct as needed */ |
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/* Note that MIFget_port eats next_token, and advances the &line pointer.. */ |
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MIFget_port(ckt, |
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tab, |
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current, |
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@ -319,57 +373,38 @@ card *current; /* the card we are to parse */ |
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return; |
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fast->conn[i]->size = 1; |
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} |
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else { /* the connection is an array - much to be done ... */ |
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/* get the leading port type for the array if any */ |
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/* it will distribute across all ports inside the braces */ |
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/* overriding the default type in the interface spec */ |
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if(next_token_type == MIF_PERCENT_TOK) { |
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/* when we leave here, next_token should hold the next, unprocessed netname */ |
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/* get the port type identifier and check it for validity */ |
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next_token = MIFget_token(&line,&next_token_type); |
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MIFget_port_type(ckt, |
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tab, |
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current, |
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&line, |
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&next_token, |
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&next_token_type, |
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&def_port_type, |
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&def_port_type_str, |
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conn_info, |
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&status); |
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if(status == MIF_ERROR) |
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return; |
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} |
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/* check for required leading array delim character and eat it if found */ |
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} |
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else { /* ====== the connection is an array - much to be done ... ====== */ |
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/* At this point, the next_token should be a [ */ |
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/* check for required leading array delim character [ and eat it if found */ |
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if(next_token_type != MIF_LARRAY_TOK) { |
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LITERR("Missing [, an array connection was expected"); |
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printf("Missing [, an array connection was expected. Returning . . ."); |
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return; |
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} |
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else |
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else /* eat the [ */ |
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next_token = MIFget_token(&line,&next_token_type); |
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/* get and process ports until ] is encountered */ |
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/*------ get and process ports until ] is encountered ------*/ |
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for(j = 0; |
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(next_token_type != MIF_RARRAY_TOK) && |
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(*line != '\0'); |
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j++) { |
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j++) { |
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/* First, do some error checks */ |
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/* check for required leading array delim character */ |
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if(next_token_type == MIF_LARRAY_TOK) { |
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LITERR("ERROR - Unexpected [ - Arrays of arrays not allowed"); |
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printf("ERROR - Unexpected [ - Arrays of arrays not allowed. Returning . . ."); |
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return; |
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} |
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/* If all OK, get the port nodes into the instance struct */ |
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/* allocating the port member of the instance struct as needed */ |
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/* Note that MIFget_port eats next_token and advances &line by one. */ |
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MIFget_port(ckt, |
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tab, |
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current, |
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@ -386,16 +421,18 @@ card *current; /* the card we are to parse */ |
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if(status == MIF_ERROR) |
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return; |
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} |
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} /*------ end of for loop until ] is encountered ------*/ |
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/* At this point, next_token should hold the next token after the |
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port netnames. This token should be a ]. */ |
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/* make sure we exited because the end of the array connection */ |
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/* was reached. If so, eat the closing array delimiter */ |
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/* make sure we exited because the end of the array connection |
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was reached. |
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*/ |
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if(*line == '\0') { |
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LITERR("Missing ] in array connection"); |
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return; |
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} |
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else |
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next_token = MIFget_token(&line,&next_token_type); |
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|
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/* record the number of ports found for this connection */ |
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|
|
if(j < 1) { |
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@ -404,12 +441,20 @@ card *current; /* the card we are to parse */ |
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} |
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fast->conn[i]->size = j; |
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} /* array connection processing */ |
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|
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/* At this point, the next time we get_token, we should get a % or a net name. |
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|
We'll do that now, since when we enter the loop, we expect next_token |
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to hold the next unprocessed token. |
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*/ |
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next_token = MIFget_token(&line,&next_token_type); |
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|
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} /* ====== array connection processing ====== */ |
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/* be careful about putting stuff here, there is a 'continue' used */ |
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/* in the processing of NULL connections above */ |
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|
} /* for number of connections */ |
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/* At this point, next_token should hold the next unprocessed token. */ |
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|
|
} /******* for number of connections *******/ |
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|
|
|
|
|
/* *********************** */ |
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|
|
@ -418,8 +463,12 @@ card *current; /* the card we are to parse */ |
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|
|
/* check for too many connections */ |
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|
|
if(*line != '\0') { |
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|
|
LITERR("Too many connections"); |
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|
|
/* At this point, we should have eaten all the net connections, and left |
|
|
|
next_token holding the model name. &line should be empty. |
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|
*/ |
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|
|
if(strcmp(next_token, model) != 0) { |
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|
|
LITERR("Too many connections -- expecting model name but encountered other tokens."); |
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|
|
return; |
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|
|
} |
|
|
|
|
|
|
|
@ -477,9 +526,11 @@ card *current; /* the card we are to parse */ |
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|
|
} |
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|
|
} |
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|
|
} |
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|
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|
|
|
|
} |
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|
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|
|
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|
|
|
/* ********************************************************************* */ |
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|
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|
|
|
@ -586,7 +637,17 @@ static void MIFinit_inst( |
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|
|
/* |
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|
|
MIFget_port_type |
|
|
|
|
|
|
|
This function gets the port type identifier and checks it for validity. |
|
|
|
This function gets the port type identifier and checks it for validity. It also |
|
|
|
replaces false default information in conn_info with the real info based upon |
|
|
|
the discovered port type string. |
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|
|
When we call it, we expect that the next token type (sent from above) |
|
|
|
should be the port type (MIF_STRING_TOK type). That is, we should be sitting right |
|
|
|
on the def of the port type (i.e. %vnam, %vd, %id, etc.) Note that the parser |
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|
|
should have stripped the % already. |
|
|
|
|
|
|
|
Upon return, this fcn should leave next_token holding the token *after* the |
|
|
|
port type (i.e. the thing after vnam, v, vd, id, etc). |
|
|
|
*/ |
|
|
|
|
|
|
|
|
|
|
|
@ -643,8 +704,22 @@ MIFget_port_type( |
|
|
|
LITERR("Port type is invalid"); |
|
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|
*status = MIF_ERROR; |
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} |
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else |
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*status = MIF_OK; |
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else { |
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/* Fix by SDB so that the netlist parser uses the actual nature |
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of the port instead of the default state to decide if it is an array. */ |
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/* |
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if ( (*port_type == MIF_DIFF_VOLTAGE) || |
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(*port_type == MIF_DIFF_CURRENT) || |
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(*port_type == MIF_DIFF_CONDUCTANCE) || |
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(*port_type == MIF_DIFF_RESISTANCE) ) { |
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conn_info->is_array = 1; |
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} |
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*/ |
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*status = MIF_OK; |
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} |
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} |
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@ -658,6 +733,13 @@ MIFget_port |
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This function processes a port being parsed, either single ended, |
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or both connections of a differential. |
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When we call this fcn, next_token should be the *first* netname in the port |
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net list. Depending upon the type of port, this fcn should eat the appropriate |
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number of net tokens. |
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When we leave this fcn, next_token should hold the next token after the last |
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netname processed. |
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*/ |
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@ -687,27 +769,6 @@ MIFget_port( |
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|
char *node; |
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/* get the leading port type if any */ |
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|
if(*next_token_type == MIF_PERCENT_TOK) { |
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|
/* get the port type identifier and check it for validity */ |
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|
*next_token = MIFget_token(line, next_token_type); |
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|
MIFget_port_type(ckt, |
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|
tab, |
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|
current, |
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|
line, |
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|
next_token, |
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|
next_token_type, |
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|
&def_port_type, |
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|
&def_port_type_str, |
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|
conn_info, |
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|
status); |
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|
|
if(*status == MIF_ERROR) { |
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|
return; |
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|
} |
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|
} |
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|
/* allocate space in the instance data struct for this port */ |
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|
|
if(port_num == 0) { |
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|
@ -853,8 +914,8 @@ MIFget_port( |
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|
case MIF_CONDUCTANCE: |
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|
case MIF_RESISTANCE: |
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|
/* These are single ended types, so default other node to ground */ |
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|
// This don't work dickhead, INPtermInsert tries to FREE(&node) K.A. Feb 27, 2000 |
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|
|
// which was not allocted |
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|
// This don't work dickhead, INPtermInsert tries to FREE(&node) K.A. Feb 27, 2000 |
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|
|
// which was not allocted |
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|
|
node = (char*)malloc(2);// added by K.A. march 5th 2000 |
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|
|
*node = '0'; // added by K.A. March 5th 2000 |
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|