1 files changed, 54 insertions, 0 deletions
diff --git a/cyclone/sickle/pow.c b/cyclone/sickle/pow.c
new file mode 100644
index 0000000..11cd508
--- /dev/null
+++ b/cyclone/sickle/pow.c
@@ -0,0 +1,54 @@
+/* Copyright (c) 2002-2003 krzYszcz and others.
+ * For information on usage and redistribution, and for a DISCLAIMER OF ALL
+ * WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+#include <math.h>
+#include "m_pd.h"
+#include "sickle/sic.h"
+
+#if defined(NT) || defined(MACOSX)
+/* cf pd/src/x_arithmetic.c */
+#define powf  pow
+#endif
+
+typedef t_sic t_pow;
+static t_class *pow_class;
+
+static t_int *pow_perform(t_int *w)
+{
+    int nblock = (int)(w[1]);
+    t_float *in1 = (t_float *)(w[2]);
+    t_float *in2 = (t_float *)(w[3]);
+    t_float *out = (t_float *)(w[4]);
+    while (nblock--)
+    {
+	float f1 = *in1++;
+	float f2 = *in2++;
+	/* CHECKED arg order, no protection against NaNs (negative base),
+	   under-, and overflows */
+	*out++ = powf(f2, f1);
+    }
+    return (w + 5);
+}
+
+static void pow_dsp(t_pow *x, t_signal **sp)
+{
+    dsp_add(pow_perform, 4, sp[0]->s_n,
+	    sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec);
+}
+
+static void *pow_new(t_floatarg f)
+{
+    t_pow *x = (t_pow *)pd_new(pow_class);
+    sic_newinlet((t_sic *)x, f);  /* CHECKED default 0 */
+    outlet_new((t_object *)x, &s_signal);
+    return (x);
+}
+
+void pow_tilde_setup(void)
+{
+    pow_class = class_new(gensym("pow~"),
+			  (t_newmethod)pow_new, 0,
+			  sizeof(t_pow), 0, A_DEFFLOAT, 0);
+    sic_setup(pow_class, pow_dsp, SIC_FLOATTOSIGNAL);
+}