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extension.c
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#include <string.h>
#ifdef __arm__
#include <wiringPi.h>
#include <wiringPiSPI.h>
#endif
#include <unistd.h>
#include <stdlib.h>
#include "npl.h"
//-----------JUMP project(builtin for compiler)------------
int b_reconsult_predicate(int arglist, int rest, int th)
{
int n, arg1, lis, save1;
n = length(arglist);
if (n == 1) {
save1 = sp[th];
arg1 = deref(car(arglist), th);
if (!wide_variable_p(arg1))
error(NOT_VAR, "n_reconsult_predicate ", arg1, th);
lis = reverse(reconsult_list);
while (!nullp(lis)) {
unify(arg1, car(lis), th);
if (prove_all(rest, sp[th], th) == YES)
return (YES);
lis = cdr(lis);
unbind(save1, th);
}
unbind(save1, th);
return (NO);
}
return (NO);
}
int b_reconsult_abolish(int arglist, int rest, int th)
{
int n, lis, pred;
n = length(arglist);
if (n == 0) {
lis = reconsult_list;
while (!nullp(lis)) {
pred = makepred(GET_NAME(car(lis)));
SET_CAR(pred, NIL);
listremove(car(lis), predicates);
lis = cdr(lis);
}
return (prove_all(rest, sp[th], th));
}
return (NO);
}
int b_filename(int arglist, int rest, int th)
{
int n, arg1, arg2, pos, len;
char str1[STRSIZE];
n = length(arglist);
if (n == 2) {
arg1 = deref(car(arglist), th);
arg2 = cadr(arglist);
strcpy(str1, GET_NAME(arg1));
len = strlen(GET_NAME(arg1));
for (pos = 0; pos < len; pos++)
if (pos == 0 && str1[pos] == '.') { // ./
pos = pos + 2;
} else if (pos == 0 && str1[pos] == '.' && str1[pos + 1] == '.') { // ../
pos = pos + 3;
} else if (str1[pos] == '.') {
str1[pos] = NUL;
if (unify(arg2, makeconst(str1), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
}
if (unify(arg1, arg2, th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
}
return (NO);
}
//convert atom for C language function name
int b_atom_convert(int arglist, int rest, int th)
{
int n, arg1, arg2, pos1;
char str1[ATOMSIZE], str2[ATOMSIZE], str3[ATOMSIZE], str4[ATOMSIZE];
// str1=input str2=unicode-buffer str3=usc4-buffer str4 = output-string
n = length(arglist);
if (n == 2) {
arg1 = deref(car(arglist), th);
arg2 = deref(cadr(arglist), th);
strcpy(str1, GET_NAME(arg1));
pos1 = 0;
memset(str4, NUL, ATOMSIZE);
while (str1[pos1] != NUL) {
if (str1[pos1] == ':') {
str2[0] = '_';
str2[1] = NUL;
strcat(str4, str2);
pos1++;
} else if (str1[pos1] == '&') {
str2[0] = 'a';
str2[1] = 'n';
str2[2] = 'd';
str2[3] = NUL;
strcat(str4, str2);
pos1++;
} else if (str1[pos1] == '?') {
str2[0] = 'm';
str2[1] = 'a';
str2[2] = 'g';
str2[3] = NUL;
strcat(str4, str2);
pos1++;
} else if (str1[pos1] == '+') {
str2[0] = 'p';
str2[1] = 'l';
str2[2] = 's';
str2[3] = NUL;
strcat(str4, str2);
pos1++;
} else if (str1[pos1] == '-') {
str2[0] = 'm';
str2[1] = 'n';
str2[2] = 's';
str2[3] = NUL;
strcat(str4, str2);
pos1++;
} else if (str1[pos1] == '*') {
str2[0] = 'a';
str2[1] = 's';
str2[2] = 't';
str2[3] = NUL;
strcat(str4, str2);
pos1++;
} else if (str1[pos1] == '/') {
str2[0] = 'd';
str2[1] = 'i';
str2[2] = 'v';
str2[3] = NUL;
strcat(str4, str2);
pos1++;
} else if (str1[pos1] == '>') {
str2[0] = 'r';
str2[1] = 'i';
str2[2] = 'g';
str2[3] = NUL;
strcat(str4, str2);
pos1++;
} else if (str1[pos1] == '<') {
str2[0] = 'l';
str2[1] = 'e';
str2[2] = 'f';
str2[3] = NUL;
strcat(str4, str2);
pos1++;
} else if (isUni1(str1[pos1])) {
str2[0] = str1[pos1];
str2[1] = NUL;
strcat(str4, str2);
pos1++;
} else if (isUni2(str1[pos1])) {
str2[0] = str1[pos1++];
str2[1] = str1[pos1++];
str2[2] = NUL;
sprintf(str3, "u%d", utf8_to_ucs4(str2));
strcat(str4, str3);
} else if (isUni3(str1[pos1])) {
str2[0] = str1[pos1++];
str2[1] = str1[pos1++];
str2[2] = str1[pos1++];
str2[3] = NUL;
sprintf(str3, "u%d", utf8_to_ucs4(str2));
strcat(str4, str3);
} else if (isUni4(str1[pos1])) {
str2[0] = str1[pos1++];
str2[1] = str1[pos1++];
str2[2] = str1[pos1++];
str2[3] = str1[pos1++];
str2[4] = NUL;
sprintf(str3, "u%d", utf8_to_ucs4(str2));
strcat(str4, str3);
} else if (isUni5(str1[pos1])) {
str2[0] = str1[pos1++];
str2[1] = str1[pos1++];
str2[2] = str1[pos1++];
str2[3] = str1[pos1++];
str2[4] = str1[pos1++];
str2[5] = NUL;
sprintf(str3, "u%d", utf8_to_ucs4(str2));
strcat(str4, str3);
} else if (isUni6(str1[pos1])) {
str2[0] = str1[pos1++];
str2[1] = str1[pos1++];
str2[2] = str1[pos1++];
str2[3] = str1[pos1++];
str2[4] = str1[pos1++];
str2[5] = str1[pos1++];
str2[6] = NUL;
sprintf(str3, "u%d", utf8_to_ucs4(str2));
strcat(str4, str3);
}
}
unify(arg2, makeconst(str4), th);
return (prove_all(rest, sp[th], th));
}
return (NO);
}
int b_arity_count(int arglist, int rest, int th)
{
int n, arg1, arg2;
n = length(arglist);
if (n == 2) {
arg1 = deref(car(arglist), th);
arg2 = cadr(arglist);
if (unify(arg2, listreverse(GET_ARITY(arg1)), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
}
return (NO);
}
int b_generate_all_variable(int arglist, int rest, int th)
{
int n, arg1, arg2;
n = length(arglist);
if (n == 2) {
arg1 = deref(car(arglist), th);
arg2 = cadr(arglist);
if (unify(arg2, generate_all_variable(GET_CAR(arg1)), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
}
return (NO);
}
int b_generate_variable(int arglist, int rest, int th)
{
int n, arg1, arg2;
n = length(arglist);
if (n == 2) {
arg1 = deref(car(arglist), th);
arg2 = cadr(arglist);
if (unify(arg2, generate_variable(arg1), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
}
return (NO);
}
int generate_all_variable(int x)
{
int y, res;
res = NIL;
while (!nullp(x)) {
y = variable_convert1(car(x));
if (clausep(y))
res = generate_variable1(caddr(y),
generate_variable1(cadr(y), res));
else
res = generate_variable1(y, res);
x = cdr(x);
}
return (res);
}
int generate_variable(int x)
{
if (clausep(x))
return (generate_variable1(caddr(x),
generate_variable1(cadr(x), NIL)));
else
return (generate_variable1(x, NIL));
}
int generate_variable1(int x, int y)
{
int temp;
if (nullp(x))
return (y);
else if (numberp(x))
return (y);
else if (compiler_variable_p(x) && !memq(x, y)) {
temp = cons(x, y);
SET_AUX(temp, LIST);
return (temp);
} else if (singlep(x))
return (y);
else if (car(x) == AND)
return (generate_variable1
(cadr(x), generate_variable1(caddr(x), y)));
else if (car(x) == OR)
return (generate_variable1
(cadr(x), generate_variable1(caddr(x), y)));
else
return (generate_variable1(car(x), generate_variable1(cdr(x), y)));
}
int b_compiler_anoymous(int arglist, int rest, int th)
{
int n, arg1;
n = length(arglist);
if (n == 1) {
arg1 = deref(car(arglist), th);
if (compiler_anoymous_p(arg1))
return (prove_all(rest, sp[th], th));
else
return (NO);
}
return (NO);
}
int compiler_anoymous_p(int x)
{
char str[256];
if (numberp(x))
return (0);
if (!!structurep(x))
return (0);
strcpy(str, GET_NAME(x));
str[4] = NUL;
if (strcmp(str, "var_") == 0)
return (1);
else
return (0);
}
int b_compiler_variable(int arglist, int rest, int th)
{
int n, arg1;
n = length(arglist);
if (n == 1) {
arg1 = deref(car(arglist), th);
if (compiler_variable_p(arg1))
return (prove_all(rest, sp[th], th));
else
return (NO);
}
return (NO);
}
int compiler_variable_p(int x)
{
char str[256];
if (numberp(x))
return (0);
if (!!structurep(x))
return (0);
strcpy(str, GET_NAME(x));
str[3] = NUL;
if (strcmp(str, "var") == 0)
return (1);
else
return (0);
}
int b_variable_convert(int arglist, int rest, int th)
{
int n, arg1, arg2;
n = length(arglist);
if (n == 2) {
arg1 = deref(car(arglist), th);
arg2 = cadr(arglist);
if (unify(arg2, variable_convert1(arg1), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
}
return (NO);
}
int variable_convert1(int x)
{
int y;
variable_convert4(NIL); //initialize anoymous N
y = variable_convert2(x);
if (clausep(x)) {
SET_AUX(y, CLAUSE);
SET_OPT(y, GET_OPT(x));
}
return (y);
}
int variable_convert2(int x)
{
int y, z;
if (nullp(x))
return (NIL);
else if (anoymousp(x))
return (variable_convert4(x));
else if (variablep(x))
return (variable_convert3(x));
else if (!structurep(x))
return (x);
else {
y = GET_AUX(x);
z = cons(variable_convert2(car(x)), variable_convert2(cdr(x)));
SET_AUX(z, y);
return (z);
}
}
//normal variable X -> varX
int variable_convert3(int x)
{
int res;
char str[STRSIZE];
strcpy(str, "var");
strcat(str, GET_NAME(x));
res = makeconst(str);
return (res);
}
//anoymous variable _ -> varN (N=1...)
int variable_convert4(int x)
{
int res;
static int n;
char str1[STRSIZE], str2[STRSIZE];
//initialize
if (x == NIL) {
n = 1;
return (0);
}
strcpy(str1, "var_");
sprintf(str2, "%d", n);
strcat(str1, str2);
res = makeconst(str1);
n++;
return (res);
}
int b_clause_with_arity(int arglist, int rest, int th)
{
int n, arg1, arg2, arg3, l, clause, clauses, res;
n = length(arglist);
if (n == 3) {
arg1 = deref(car(arglist), th);
arg2 = deref(cadr(arglist), th);
arg3 = deref(caddr(arglist), th);
if (!singlep(arg1))
error(NOT_ATOM, "n_clause_with_arity", arg1, th);
if (!integerp(arg2))
error(NOT_INT, "n_clause_with_arity", arg2, th);
clauses = GET_CAR(arg1);
l = GET_INT(arg2);
res = NIL;
while (!nullp(clauses)) {
clause = car(clauses);
if (atomp(clause) && l == 0)
res = cons(clause, res);
else if (predicatep(clause) && length(clause) == l + 1)
res = cons(clause, res);
else if (user_operation_p(clause) && length(clause) == l + 1)
res = cons(clause, res);
else if (clausep(clause) && atomp(cadr(clause)) && l == 0)
res = cons(clause, res);
else if (clausep(clause) && length(cadr(clause)) == l + 1)
res = cons(clause, res);
clauses = cdr(clauses);
}
res = listreverse(res);
unify(res, arg3, th);
return (prove_all(rest, sp[th], th));
}
return (NO);
}
int b_error(int arglist, int rest, int th)
{
int n, arg1, arg2;
n = length(arglist);
if (n == 2) {
arg1 = car(arglist);
arg2 = cadr(arglist);
int ret1 = setjmp(buf1);
if (ret1 == 0) {
check_flag = 1;
prove_all(arg1, sp[th], th);
check_flag = 0;
printf("Not error: ");
print(arg1);
return (NO);
} else if (ret1 == 1) {
ret1 = 0;
check_flag = 0;
if (unify(arg2, makeint(error_code), th) == YES) {
if (prove_all(rest, sp[th], th) == YES)
return (YES);
else
return (NO);
} else {
printf("Wrong error code: %d ", error_code);
print(arg1);
return (NO);
}
}
}
error(ARITY_ERR, "n_error ", arglist, th);
return (NO);
}
int b_property(int arglist, int rest, int th)
{
int n, arg1, arg2;
n = length(arglist);
if (n == 2) {
arg1 = car(arglist);
arg2 = cadr(arglist);
if (builtinp(arg1)) {
if (unify(arg2, makeconst("builtin"), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else if (predicatep(arg1)) {
if (unify(arg2, makeconst("predicate"), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else if (functionp(arg1)) {
if (unify(arg2, makeconst("function"), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else if (compiledp(arg1)) {
if (unify(arg2, makeconst("compiled"), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else if (operationp(arg1)) {
if (unify(arg2, makeconst("operation"), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else if (operatorp(arg1)) {
if (unify(arg2, makeconst("operator"), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else if (user_operator_p(arg1)) {
if (unify(arg2, makeconst("userop"), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else if (user_operation_p(arg1)) {
if (unify(arg2, makeconst("userop"), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else if (singlep(arg1) && findatom(arg1, USER) == 1) {
if (unify(arg2, makeconst("userop"), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else if (structurep(arg1) && GET_AUX(arg1) != LIST &&
IS_INCELL(car(arg1)) && findatom(car(arg1), USER) == 1)
{
if (unify(arg2, makeconst("userop"), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else
return (NO);
}
return (NO);
}
int b_bignum(int arglist, int rest, int th)
{
int n, arg1;
n = length(arglist);
if (n == 1) {
arg1 = car(arglist);
if (bignump(arg1))
return (prove_all(rest, sp[th], th));
else
return (NO);
}
return (NO);
}
int b_longnum(int arglist, int rest, int th)
{
int n, arg1;
n = length(arglist);
if (n == 1) {
arg1 = car(arglist);
if (longnump(arg1))
return (prove_all(rest, sp[th], th));
else
return (NO);
}
return (NO);
}
int b_findatom(int arglist, int rest, int th)
{
int n, arg1, arg2, arg3, res;
n = length(arglist);
if (n == 3) {
arg1 = deref(car(arglist), th); //atom
arg2 = deref(cadr(arglist), th); //property
arg3 = deref(caddr(arglist), th); //address
res = NIL;
if (eqlp(arg2, makeconst("constant")))
res = findatom(arg1, SIMP);
else if (eqlp(arg2, makeconst("predicate")))
res = findatom(arg1, PRED);
else if (eqlp(arg2, makeconst("builtin")))
res = findatom(arg1, SYS);
else if (eqlp(arg2, makeconst("compiled")))
res = findatom(arg1, COMP);
else if (eqlp(arg2, makeconst("operator")))
res = findatom(arg1, OPE);
else if (eqlp(arg2, makeconst("userop")))
res = findatom(arg1, USER);
else
error(ILLEGAL_ARGS, "findatom ", arg2, th);
if (unify(arg3, makeint(res), th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
}
return (NO);
}
int b_defined_predicate(int arglist, int rest, int th)
{
int n, arg1;
n = length(arglist);
if (n == 1) {
arg1 = deref(car(arglist), th);
if (predicatep(arg1)) {
if (atomp(arg1) && GET_CAR(arg1) != NIL)
return (prove_all(rest, sp[th], th));
else if (structurep(arg1) && GET_CAR(car(arg1)) != NIL)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else
return (NO);
}
return (NO);
}
int b_defined_userop(int arglist, int rest, int th)
{
int n, arg1;
n = length(arglist);
if (n == 1) {
arg1 = deref(car(arglist), th);
if (user_operation_p(arg1) || user_operator_p(arg1)) {
if (atomp(arg1) && GET_CAR(arg1) != NIL)
return (prove_all(rest, sp[th], th));
else if (structurep(arg1) && GET_CAR(car(arg1)) != NIL)
return (prove_all(rest, sp[th], th));
else
return (NO);
} else
return (NO);
}
return (NO);
}
int b_get_execute(int arglist, int rest, int th)
{
int n, arg1, pos, res;
n = length(arglist);
if (n == 1) {
arg1 = car(arglist);
res = NIL;
pos = execute_list;
while (!nullp(pos)) {
res = listcons(car(pos), res);
pos = cdr(pos);
}
if (unify(arg1, res, th) == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
}
return (NO);
}
int b_heapdump(int arglist, int rest, int th)
{
int n, arg1, arg2;
n = length(arglist);
if (n == 2) {
arg1 = car(arglist);
arg2 = cadr(arglist);
if (!integerp(arg1))
error(NOT_INT, "heapd ", arg1, th);
if (!integerp(arg2))
error(NOT_INT, "heapd ", arg2, th);
if (greaterp(arg1, arg2))
error(WRONG_ARGS, "heapd ", wlist2(arg1, arg2, th), th);
heapdump(get_int(arg1), get_int(arg2));
return (prove_all(rest, sp[th], th));
}
return (NO);
}
int b_existerrors(int arglist, int rest, int th)
{
int n, arg1, arg2, res;
n = length(arglist);
if (n == 2) {
arg1 = car(arglist);
arg2 = cadr(arglist);
if (arg1 != YES && arg1 != NO && !wide_variable_p(arg1))
error(ILLEGAL_ARGS, "existerrors ", arg1, th);
if (arg2 != YES && arg2 != NO && !wide_variable_p(arg2))
error(ILLEGAL_ARGS, "existerrors ", arg1, th);
res = unify(arg1, exist_flag, th);
exist_flag = arg2;
if (res == YES)
return (prove_all(rest, sp[th], th));
else
return (NO);
}
error(ARITY_ERR, "existerrors ", arglist, th);
return (NO);
}
int b_has_cut(int arglist, int rest, int th)
{
int n, arg1;
n = length(arglist);
if (n == 1) {
arg1 = car(arglist);
if (has_cut_p(arg1))
return (prove_all(rest, sp[th], th));
else
return (NO);
}
error(ARITY_ERR, "n_has_cut ", arglist, th);
return (NO);
}
int b_before_cut(int arglist, int rest, int th)
{
int n, arg1, arg2;
n = length(arglist);
if (n == 2) {
arg1 = car(arglist);
arg2 = cadr(arglist);
if (has_cut_p(arg1)) {
unify(arg2, before_cut(arg1), th);
return (prove_all(rest, sp[th], th));
} else
return (NO);
}
error(ARITY_ERR, "n_before_cut ", arglist, th);
return (NO);
}
int b_after_cut(int arglist, int rest, int th)
{
int n, arg1, arg2;
n = length(arglist);
if (n == 2) {
arg1 = car(arglist);
arg2 = cadr(arglist);
if (has_cut_p(arg1)) {
unify(arg2, after_cut(arg1), th);
return (prove_all(rest, sp[th], th));
} else
return (NO);
}
error(ARITY_ERR, "n_after_cut ", arglist, th);
return (NO);
}
int exec_all(int goals, int bindings, int th)
{
if (nullp(goals))
return (YES);
/* ,(;(D1;D2),Xs) */
else if (listp(goals) && car(cadr(goals)) == OR) {
if (exec_all(cadr(cadr(goals)), bindings, th) == YES)
return (exec_all(caddr(goals), bindings, th));
else if (exec_all(caddr(cadr(goals)), bindings, th) == YES)
return (exec_all(caddr(goals), bindings, th));
else
return (NO);
} else if (car(goals) != AND)
return (exec(goals, bindings, NIL, th));
else {
return (exec(cadr(goals), bindings, caddr(goals), th));
}
return (NO);
}
int exec(int goal, int bindings, int rest, int th)
{
int res;
proof[th]++;
goal = deref(goal, th);
if (nullp(goal)) {
return (exec_all(rest, bindings, th));
} else if (builtinp(goal)) {
if (atomp(goal)) {
if ((res = (GET_SUBR(goal)) (NIL, rest, th)) == YES)
return (YES);
return (res);
} else {
if ((res = (GET_SUBR(car(goal))) (cdr(goal), rest, th)) == YES)
return (YES);
return (res);
}
} else if (compiledp(goal)) {
if (atomp(goal)) {
if ((GET_SUBR(goal)) (NIL, rest, th) == YES)
return (YES);
return (NO);
} else {
if ((GET_SUBR(car(goal))) (cdr(goal), rest, th) == YES)
return (YES);
return (NO);
}
}
return (NO);
}
//----------for Raspberry PI
#ifdef __arm__
int b_wiringpi_setup_gpio(int arglist, int rest, int th)
{
int n;
n = length(arglist);
if (n == th) {
wiringPiSetupGpio();
return (prove_all(rest, sp[th], th));
}
error(ARITY_ERR, "wiringpi_setup_gpio ", arglist, th);
return (NO);
}
int b_wiringpi_spi_setup_ch_speed(int arglist, int rest, int th)
{
int n, arg1, arg2, x, y;
n = length(arglist);
if (n == 2) {
arg1 = car(arglist);
arg2 = cadr(arglist);
if (!integerp(arg1))
error(NOT_INT, "wiringpi_spi_setup_ch_speed ", arg1, th);
if (!integerp(arg2))
error(NOT_INT, "wiringpi_spi_setup_ch_speed ", arg2, th);
x = GET_INT(arg1);
y = GET_INT(arg2);
wiringPiSPISetup(x, y);
return (prove_all(rest, sp[th], th));
}
error(ARITY_ERR, "wiringpi_spi_setup_ch_speed ", arglist, th);
return (NO);
}
int b_pwm_set_mode(int arglist, int rest, int th)
{
int n, arg1;
n = length(arglist);
if (n == 1) {
arg1 = car(arglist);
if (arg1 == makeconst("pwm_mode_ms"))
pwmSetMode(PWM_MODE_MS);
else if (arg1 == makeconst("pwm_mode_bal"))
pwmSetMode(PWM_MODE_BAL);
else
error(WRONG_ARGS, "pwm_set_mode", arg1, th);
return (prove_all(rest, sp[th], th));
}
error(ARITY_ERR, "pwm_set_mode ", arglist, th);
return (NO);
}
int b_pwm_set_range(int arglist, int rest, int th)
{
int n, arg1, x;
n = length(arglist);
if (n == 1) {
arg1 = car(arglist);
if (!integerp(arg1))
error(NOT_INT, "pwm_set_range", arg1, th);
x = GET_INT(arg1);
pwmSetRange(x);
return (prove_all(rest, sp[th], th));
}
error(ARITY_ERR, "pwm_set_range ", arglist, th);
return (NO);
}
int b_pwm_set_clock(int arglist, int rest, int th)
{
int n, arg1, x;
n = length(arglist);
if (n == 1) {
arg1 = car(arglist);
if (!integerp(arg1))
error(NOT_INT, "pwm_set_clock", arg1, th);
x = GET_INT(arg1);
pwmSetClock(x);
return (prove_all(rest, sp[th], th));
}
error(ARITY_ERR, "pwm_set_clock ", arglist, th);
return (NO);
}
int b_pin_mode(int arglist, int rest, int th)
{
int n, arg1, arg2, x;