Add current measurement for device XYZ using I(XYZ)
This commit is contained in:
h_vogt
rlar
parent
95f092ad12
commit
caebd2dfad
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@ -123,6 +123,7 @@ static char *inp_remove_ws(char *s);
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static void inp_compat(struct line *deck);
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static void inp_bsource_compat(struct line *deck);
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static void inp_temper_compat(struct line *card);
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static void inp_meas_current(struct line *card);
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static void inp_dot_if(struct line *deck);
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static char *inp_modify_exp(char* expression);
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static struct func_temper *inp_new_func(char *funcname, char *funcbody, struct line *card,
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@ -538,6 +539,7 @@ inp_readall(FILE *fp, char *dir_name, bool comfile, bool intfile)
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if (inp_compat_mode != COMPATMODE_SPICE3) {
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/* Do all the compatibility stuff here */
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working = cc->li_next;
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inp_meas_current(working);
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/* E, G, L, R, C compatibility transformations */
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inp_compat(working);
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working = cc->li_next;
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@ -6200,3 +6202,207 @@ inp_quote_params(struct line *c, struct line *end_c, struct dependency *deps, in
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}
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}
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}
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/* storage for devices which get voltage source added */
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struct replace_currm
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{
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struct line *s_start;
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struct line *cline;
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char *rtoken;
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struct replace_currm *next;
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};
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/* Measure current in node 1 of all devices, e.g. I, B, F, and G.
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I(V...) will be ignored, however H, E nonlinear voltage
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sources may be converted later
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to B source, therefore we need to add current measurement here.
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First find all ocurrencies of i(XYZ), store their cards, then
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search for XYZ, but only within respective subcircuit, or if
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all happens at top level. Other hierarchy is ignored for now.
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Replace I(XYZ) bx I(V_XYZ), add voltage source V_XYZ with
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suitable extra nodes.
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*/
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static void
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inp_meas_current(struct line *deck)
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{
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struct line *card, *subc_start = NULL, *subc_prev = NULL;
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struct replace_currm *new_rep, *act_rep = NULL, *rep = NULL;
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char *s, *t, *u, *v;
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int skip_control = 0, subs = 0;
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/* scan through deck and find i(xyz), replace by i(v_xyz) */
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for (card = deck; card; card = card->li_next) {
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char *curr_line = card->li_line;
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/* exclude any command inside .control ... .endc */
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if (ciprefix(".control", curr_line)) {
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skip_control++;
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continue;
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}
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else if (ciprefix(".endc", curr_line)) {
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skip_control--;
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continue;
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}
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else if (skip_control > 0) {
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continue;
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}
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if (*curr_line == '*')
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continue;
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if (*curr_line == '.') {
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if (ciprefix(".subckt", curr_line)) {
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subs++;
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subc_prev = subc_start;
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subc_start = card;
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}
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else if (ciprefix(".ends", curr_line)) {
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subs--;
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subc_start = subc_prev;
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}
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else
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continue;
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}
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if (!strstr(curr_line, "i("))
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continue;
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s = v = stripWhiteSpacesInsideParens(curr_line);
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while (s) {
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/* i( may occur more than once in a line */
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s = u = strstr(s, "i(");
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/* we have found it, but not (in error) at the beginning of the line */
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if (s && s > v) {
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/* '{' if at beginning of expression */
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if (is_arith_char(s[-1]) || s[-1] == '{') {
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s += 2;
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if (*s == 'v') {
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// printf("i(v...) found in\n%s\n not converted!\n\n", curr_line);
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continue;
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}
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else {
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char *beg_str, *new_str;
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get_r_paren(&u);
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/* token containing name of devices to be measured */
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t = copy_substring(s, --u);
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if (ft_ngdebug)
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printf("i(%s) found in\n%s\n\n", t, curr_line);
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/* new entry to the end of struct rep */
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new_rep = TMALLOC(struct replace_currm, 1);
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new_rep->s_start = subc_start;
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new_rep->next = NULL;
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new_rep->cline = card;
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new_rep->rtoken = t;
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if (act_rep) {
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act_rep->next = new_rep;
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act_rep = act_rep->next;
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}
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else
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rep = act_rep = new_rep;
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/* change line, convert i(XXX) to i(v_XXX) */
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beg_str = copy_substring(v, s);
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new_str = tprintf("%s%s%s", beg_str, "v_", s);
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if (ft_ngdebug)
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printf("converted to\n%s\n\n", new_str);
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tfree(curr_line);
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tfree(v);
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card->li_line = s = v = new_str;
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s++;
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tfree(beg_str);
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}
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}
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else
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s++;
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}
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}
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}
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/* return if we did not find any i( */
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if (rep == NULL)
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return;
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/* scan through all the devices, search for xyz, modify node 1 by adding _vmeas,
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add a line with zero voltage v_xyz, having original node 1 and modified node 1.
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Do this within the top level or the same level of subcircuit only. */
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new_rep = rep;
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for (; rep; rep = rep->next) {
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card = rep->s_start;
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subs = 0;
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if (card)
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card = card->li_next;
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else
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card = deck;
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for (; card; card = card->li_next) {
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char *tok, *new_tok, *node1, *new_line;
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char *curr_line = card->li_line;
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/* exclude any command inside .control ... .endc */
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if (ciprefix(".control", curr_line)) {
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skip_control++;
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continue;
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}
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else if (ciprefix(".endc", curr_line)) {
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skip_control--;
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continue;
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}
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else if (skip_control > 0) {
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continue;
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}
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if (*curr_line == '*')
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continue;
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if (*curr_line == '.') {
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if (ciprefix(".subckt", curr_line))
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subs++;
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else if (ciprefix(".ends", curr_line))
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subs--;
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else
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continue;
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}
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if (subs > 0)
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continue;
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/* We are at now top level or in top level of subcircuit
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where i(xyz) has been found */
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tok = gettok(&curr_line);
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/* done when end of subcircuit is reached */
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if (eq(".ends", tok) && rep->s_start)
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break;
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if (eq(rep->rtoken, tok)) {
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node1 = gettok(&curr_line);
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/* Add _vmeas only once to first device node.
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Continue if we already have modified device "tok" */
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if (!strstr(node1, "_vmeas")) {
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new_line = tprintf("%s %s_vmeas %s", tok, node1, curr_line);
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tfree(card->li_line);
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card->li_line = new_line;
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}
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new_tok = tprintf("v_%s", tok);
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/* We have already added a line v_xyz to the deck */
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if (!ciprefix(new_tok, card->li_next->li_line)) {
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/* add new line */
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new_line = tprintf("%s %s %s_vmeas 0", new_tok, node1, node1);
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/* insert new_line after card->li_line */
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card->li_next = xx_new_line(card->li_next, new_line,
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card->li_linenum + 1, 0);
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}
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tfree(new_tok);
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tfree(node1);
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}
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tfree(tok);
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}
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}
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/* free rep */
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while (new_rep) {
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struct replace_currm *repn = new_rep->next;
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tfree(new_rep->rtoken);
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tfree(new_rep);
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new_rep = repn;
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}
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}
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