CMOS digital logic emulation objects

svn path=/trunk/externals/mrpeach/; revision=7509

1 files changed, 119 insertions, 0 deletions

diff --git a/cmos/cd4012.c b/cmos/cd4012.c
new file mode 100755
index 0000000..752d8c1
--- /dev/null
+++ b/cmos/cd4012.c
@@ -0,0 +1,119 @@
+/* cd4012.c MP 20070315 */
+/* Emulate a cd4012b */
+#include "m_pd.h"
+
+typedef struct _cd4012
+{
+    t_object        x_obj;
+    t_int           x_in1;
+    t_int           x_in2;
+    t_int           x_in3;
+    t_int           x_in4;
+    t_outlet        *x_out;
+    t_inlet         *x_inlet2;/* extra inlets are 'live' like the first */
+    t_inlet         *x_inlet3;
+    t_inlet         *x_inlet4;
+} t_cd4012;
+
+static t_class *cd4012_class;
+
+void cd4012_setup(void);
+static void *cd4012_new(t_symbol *s, int argc, t_atom *argv);
+static void cd4012_free(t_cd4012 *x);
+static void cd4012_bang(t_cd4012 *x);
+static void cd4012_float(t_cd4012 *x, t_float f);
+static void cd4012_inlet2(t_cd4012 *x, t_float f);
+static void cd4012_inlet3(t_cd4012 *x, t_float f);
+static void cd4012_inlet4(t_cd4012 *x, t_float f);
+static void cd4012_update_outlets(t_cd4012 *x);
+
+static void cd4012_float(t_cd4012 *x, t_float f)
+{
+    if (f == 1) x->x_in1 = 1;
+    else if (f == 0) x->x_in1 = 0;
+    else
+    {
+        post("cd4012 inlet 2 accepts 1 or 0.");
+        return;
+    }
+    cd4012_update_outlets(x);
+}
+
+static void cd4012_bang(t_cd4012 *x)
+{
+    cd4012_update_outlets(x);
+}
+
+static void cd4012_inlet2(t_cd4012 *x, t_float f)
+{
+    if (f == 1) x->x_in2 = 1;
+    else if (f == 0) x->x_in2 = 0;
+    else
+    {
+        post("cd4012 inlet 2 accepts 1 or 0.");
+        return;
+    }
+    cd4012_update_outlets(x);
+}
+
+static void cd4012_inlet3(t_cd4012 *x, t_float f)
+{
+    if (f == 1) x->x_in3 = 1;
+    else if (f == 0) x->x_in3 = 0;
+    else
+    {
+        post("cd4012 inlet 3 accepts 1 or 0.");
+        return;
+    }
+    cd4012_update_outlets(x);
+}
+
+static void cd4012_inlet4(t_cd4012 *x, t_float f)
+{
+    if (f == 1) x->x_in4 = 1;
+    else if (f == 0) x->x_in4 = 0;
+    else
+    {
+        post("cd4012 inlet 4 accepts 1 or 0.");
+        return;
+    }
+    cd4012_update_outlets(x);
+}
+
+static void cd4012_update_outlets(t_cd4012 *x)
+{ /* Quadruple NAND function */
+    outlet_float(x->x_out, ((x->x_in1 + x->x_in2 + x->x_in3 + x->x_in4) == 4)?0:1);
+}
+
+static void cd4012_free(t_cd4012 *x)
+{
+    return;
+}
+
+static void *cd4012_new(t_symbol *s, int argc, t_atom *argv)
+{
+    t_cd4012           *x;
+
+    x = (t_cd4012 *)pd_new(cd4012_class);
+    if (x == NULL) return (x);
+    x->x_out = outlet_new((t_object *)x, &s_float);
+    x->x_inlet2 = inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("inlet2"));
+    x->x_inlet3 = inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("inlet3"));
+    x->x_inlet4 = inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("inlet4"));
+    return (x);
+}
+
+void cd4012_setup(void)
+{
+    cd4012_class = class_new(gensym("cd4012"),
+                    (t_newmethod)cd4012_new,
+                    (t_method)cd4012_free,
+                    sizeof(t_cd4012), 0, 0); /* no arguments */
+    class_addbang(cd4012_class, cd4012_bang);
+    class_addfloat(cd4012_class, cd4012_float);
+    class_addmethod(cd4012_class, (t_method)cd4012_inlet2, gensym("inlet2"), A_FLOAT, 0);
+    class_addmethod(cd4012_class, (t_method)cd4012_inlet3, gensym("inlet3"), A_FLOAT, 0);
+    class_addmethod(cd4012_class, (t_method)cd4012_inlet4, gensym("inlet4"), A_FLOAT, 0);
+}
+/* end cd4012.c */
+