From 420ada2dde4af8d71bc1d9c6988311961cf47f1b Mon Sep 17 00:00:00 2001
From: daniel aschauer <aschix@users.sourceforge.net>
Date: Fri, 9 Jan 2009 17:23:55 +0000
Subject: svn path=/trunk/externals/algocomp/; revision=10494

---
 helpers.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100755 helpers.c

(limited to 'helpers.c')

diff --git a/helpers.c b/helpers.c
new file mode 100755
index 0000000..dc7e754
--- /dev/null
+++ b/helpers.c
@@ -0,0 +1,42 @@
+void fast_d2bl(int x, short *c, short length) {
+	int i;
+	for (i=0;i<length;i++) 
+	*(c++) = (x >> i) & 0x1;
+}
+
+void fast_d2b(unsigned short x, short *c) {
+	int i;
+	for (i=0;i<8;i++) 
+	*(c++) = (x >> i) & 0x1;
+}
+
+
+void fast_b2d(unsigned long int *n, short *c) {
+int i = 32;
+*n = 0;
+while(i--) {
+*n <<=1;
+*n+= *(c+i);
+}
+}
+
+void fast_b2short8(unsigned short *n, short *c) {
+int i = 8;
+*n = 0;
+while(i--) {
+*n <<=1;
+*n+= *(c+i);
+}
+}
+
+void fast_b2short(unsigned int *n, short *c,short length) {
+int i;
+if ((length <= 16) && (length > 0))
+i = length;
+else i = 8;
+*n = 0;
+while(i--) {
+*n <<=1;
+*n+= *(c+i);
+}
+}
-- 
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