--- ui64.c 2002/04/28 13:22:49 1.1
+++ ui64.c 2002/04/28 18:58:01 1.2
@@ -37,6 +37,7 @@
#define UI64_DIGITS 8 /* 8*8 = 64 bit */
#define UIXX_T(n) struct { unsigned char x[n]; }
+/* fill an ui64_t with a sequence of a particular digit */
#define ui64_fill(__x, __n) \
do { int __i; \
for (__i = 0; __i < UI64_DIGITS; __i++) \
@@ -77,7 +78,7 @@
}
/* convert internal format into ISO-C "unsigned long";
- truncates if sizeof(unsigned long) is less than 8!) */
+ truncates if sizeof(unsigned long) is less than UI64_DIGITS! */
unsigned long ui64_i2n(ui64_t x)
{
unsigned long n;
@@ -159,6 +160,7 @@
return str;
}
+/* addition of two ui64_t */
ui64_t ui64_add(ui64_t x, ui64_t y, ui64_t *ov)
{
ui64_t z;
@@ -176,6 +178,7 @@
return z;
}
+/* addition of an ui64_t and a single digit */
ui64_t ui64_addn(ui64_t x, int y, int *ov)
{
ui64_t z;
@@ -191,6 +194,7 @@
return z;
}
+/* subtraction of two ui64_t */
ui64_t ui64_sub(ui64_t x, ui64_t y, ui64_t *ov)
{
ui64_t z;
@@ -209,6 +213,7 @@
return z;
}
+/* subtraction of an ui64_t and a single digit */
ui64_t ui64_subn(ui64_t x, int y, int *ov)
{
ui64_t z;
|
