1 files changed, 183 insertions, 0 deletions
diff --git a/cmos/cd4013.c b/cmos/cd4013.c
new file mode 100755
index 0000000..c92f635
--- /dev/null
+++ b/cmos/cd4013.c
@@ -0,0 +1,183 @@
+/* cd4013.c MP 20070306 */
+/* Emulate a cd4013b */
+#include "m_pd.h"
+
+typedef struct _cd4013
+{
+    t_object        x_obj;
+    t_int           x_state;/* set = bit0, clock = bit1, reset = bit2 j = bit3 k = bit4 q = bit 5 */
+    t_outlet        *x_Q;
+    t_outlet        *x_notQ;
+    t_inlet         *x_set;/* set takes one or zero as acceptable inputs. */
+    t_inlet         *x_reset;/* reset takes one or zero as acceptable inputs. */
+    t_inlet         *x_d;/* d takes one or zero as acceptable inputs. */
+    /* The main inlet (clock) should accept a bang or a one as valid clocks. */
+    /* If a one is received, it must be followed by a zero before the clock will work again. */
+} t_cd4013;
+
+#define SET_4013 1
+#define CLOCK_4013 2
+#define RESET_4013 4
+#define D_4013 8
+#define Q_4013 16
+#define UPDATING_4013 32
+#define CHANGED_4013 64
+
+static t_class *cd4013_class;
+
+void cd4013_setup(void);
+static void *cd4013_new(t_symbol *s, int argc, t_atom *argv);
+static void cd4013_free(t_cd4013 *x);
+static void cd4013_bang(t_cd4013 *x);
+static void cd4013_float(t_cd4013 *x, t_float f);
+static void cd4013_set(t_cd4013 *x, t_float f);
+static void cd4013_reset(t_cd4013 *x, t_float f);
+static void cd4013_d(t_cd4013 *x, t_float f);
+static void cd4013_update_outlets(t_cd4013 *x);
+static void cd4013_printstate (t_cd4013 *x);
+
+static void cd4013_float(t_cd4013 *x, t_float f)
+{
+    if (f == 1)
+    { /* if clock is high and was low, clock it. */
+        if ((x->x_state & CLOCK_4013) == 0) cd4013_bang(x);
+        x->x_state |= CLOCK_4013;
+    }
+    else if (f == 0) x->x_state &= ~CLOCK_4013;
+    else post("cd4013 accepts bang, 1 or 0.");
+}
+
+static void cd4013_printstate (t_cd4013 *x)
+{
+    post ("SET %d RESET %d D %d Q %d", ((x->x_state & SET_4013) != 0)?1:0
+        , ((x->x_state & RESET_4013) != 0)?1:0
+        , ((x->x_state & D_4013) != 0)?1:0
+        , ((x->x_state & Q_4013) != 0)?1:0);
+}
+
+static void cd4013_bang(t_cd4013 *x)
+{
+    if ((x->x_state & (SET_4013 | RESET_4013)) == 0)
+    { /* if set is low and reset is low, clock forward */
+        if ((x->x_state & D_4013) != 0) x->x_state |= Q_4013;
+        else  x->x_state &= ~Q_4013;
+        cd4013_update_outlets(x);
+    }
+}
+
+static void cd4013_set(t_cd4013 *x, t_float f)
+{
+    if (f == 1)
+    {
+        x->x_state |= SET_4013; /* set = 1 */
+    }
+    else if (f == 0)
+    {
+        x->x_state &= ~SET_4013; /* set = 0 */
+    }
+    else
+    {
+        post("cd4013 set takes 1 or 0 only.");
+        return;
+    }
+    /* update outlets if not already doing that */
+    if ((x->x_state & UPDATING_4013) == 0)
+    {
+        cd4013_update_outlets(x);
+    }
+    else
+    {
+        x->x_state |= CHANGED_4013;
+    }
+    return;
+}
+
+static void cd4013_reset(t_cd4013 *x, t_float f)
+{
+    if (f == 1)
+    {
+        x->x_state |= RESET_4013; /* reset = 1 */
+    }
+    else if (f == 0)
+    {
+        x->x_state &= ~RESET_4013; /* reset = 0 */
+    }
+    else
+    {
+        return;
+    }
+    /* update outlets if not already doing that */
+    if ((x->x_state & UPDATING_4013) == 0)
+    {
+        cd4013_update_outlets(x);
+    }
+    else
+    {
+        x->x_state |= CHANGED_4013;
+    }
+    return;
+}
+
+static void cd4013_d(t_cd4013 *x, t_float f)
+{
+    if (f == 1)
+    {
+        x->x_state |= D_4013; /* d = 1 */
+    }
+    else if (f == 0)
+    {
+        x->x_state &= ~D_4013; /* d = 0 */
+    }
+    else post("cd4013 d takes 1 or 0 only.");
+    return;
+}
+
+static void cd4013_update_outlets(t_cd4013 *x)
+{
+    /*  cd4013_printstate (x);  */
+    x->x_state |= UPDATING_4013;/* updating outlets */
+reset:
+    if ((x->x_state & SET_4013) != 0) x->x_state |= Q_4013;
+    else if ((x->x_state & RESET_4013) != 0) x->x_state &= ~Q_4013;
+    x->x_state &= ~CHANGED_4013; /* prepare to flag any changes that occur during outlet_update */
+    outlet_float(x->x_notQ, ((x->x_state & Q_4013) == 0)?1:0);
+/* we might get set or reset as a result of feedback from one of these outlets. */
+    if ((x->x_state & CHANGED_4013) != 0) goto reset;
+    outlet_float(x->x_Q, ((x->x_state & Q_4013) != 0)?1:0);
+    if ((x->x_state & CHANGED_4013) != 0) goto reset;
+    x->x_state &= ~UPDATING_4013;/* finished updating outlets */
+}
+
+static void cd4013_free(t_cd4013 *x)
+{
+    return;
+}
+
+static void *cd4013_new(t_symbol *s, int argc, t_atom *argv)
+{
+    t_cd4013           *x;
+
+    x = (t_cd4013 *)pd_new(cd4013_class);
+    if (x == NULL) return (x);
+    x->x_Q = outlet_new((t_object *)x, &s_float);
+    x->x_notQ = outlet_new((t_object *)x, &s_float);
+    x->x_set = inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("set"));
+    x->x_reset = inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("reset"));
+    x->x_d = inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("d"));
+    return (x);
+}
+
+void cd4013_setup(void)
+{
+    cd4013_class = class_new(gensym("cd4013"),
+                    (t_newmethod)cd4013_new,
+                    (t_method)cd4013_free,
+                    sizeof(t_cd4013), 0, 0); /* no arguments */
+    class_addbang(cd4013_class, cd4013_bang);
+    class_addfloat(cd4013_class, cd4013_float);
+    class_addmethod(cd4013_class, (t_method)cd4013_reset, gensym("reset"), A_FLOAT, 0);
+    class_addmethod(cd4013_class, (t_method)cd4013_set, gensym("set"), A_FLOAT, 0);
+    class_addmethod(cd4013_class, (t_method)cd4013_d, gensym("d"), A_FLOAT, 0);
+}
+/* end cd4013.c */
+