--- /dev/null
+/*
+ * giantPort_PPC_Gnu.h - giant definitions, PPC/GNU version.
+ */
+
+#ifndef _CK_NSGIANT_PORT_PPC_GNU_H_
+#define _CK_NSGIANT_PORT_PPC_GNU_H_
+
+#include "feeDebug.h"
+#include "platform.h"
+#include "giantIntegers.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* define this true to disable this module and use generic C versions instead */
+#define PPC_GIANT_PORT_INLINE 0
+
+#if PPC_GIANT_PORT_INLINE
+
+#include "giantPort_Generic.h"
+
+#else // PPC_GIANT_PORT_INLINE
+
+/*
+ * Multiple-precision arithmetic routines/macros implemented in
+ * giantPort_PPC_Gnu.s
+ */
+
+/*
+ * Add two digits, return sum. Carry bit returned as an out parameter.
+ */
+extern giantDigit giantAddDigits(
+ giantDigit dig1,
+ giantDigit dig2,
+ giantDigit *carry); /* RETURNED, 0 or 1 */
+
+/*
+ * Add a single digit value to a double digit accumulator in place.
+ * Carry out of the MSD of the accumulator is not handled.
+ */
+void giantAddDouble(
+ giantDigit *accLow, /* IN/OUT */
+ giantDigit *accHigh, /* IN/OUT */
+ giantDigit val);
+
+
+/*
+ * Subtract a - b, return difference. Borrow bit returned as an out parameter.
+ */
+giantDigit giantSubDigits(
+ giantDigit a,
+ giantDigit b,
+ giantDigit *borrow); /* RETURNED, 0 or 1 */
+
+
+/*
+ * Multiply two digits, return two digits.
+ */
+void giantMulDigits(
+ giantDigit dig1,
+ giantDigit dig2,
+ giantDigit *lowProduct, /* RETURNED, low digit */
+ giantDigit *hiProduct); /* RETURNED, high digit */
+
+/*
+ * Multiply a vector of giantDigits, candVector, by a single giantDigit,
+ * plierDigit, adding results into prodVector. Returns m.s. digit from
+ * final multiply; only candLength digits of *prodVector will be written.
+ */
+giantDigit VectorMultiply(
+ giantDigit plierDigit,
+ giantDigit *candVector,
+ unsigned candLength,
+ giantDigit *prodVector);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !PPC_GIANT_PORT_INLINE */
+
+#endif /*_CK_NSGIANT_PORT_PPC_GNU_H_*/