Differences

This shows you the differences between two versions of the page.

--- math:start [2022/07/16 16:20]
rajit created
+++ math:start [2022/07/30 11:38]
rajit [Namespace math]
@@ Line 2: / Line 2: @@
 This namespace is used to provide support functions for math operations.
+===== Functions =====
 ===== Namespace math::fxp =====
+==== Functions ====
 The ''math::fxp'' namespace contains simple definitions for fixed-point arithmetic functions. Functions take two parameters ''A'' and ''B'', and integers use the standard Q-format where the representation Q(A,B) corresponds to A digits for the integer part and B digits for the fractional part. The representation uses 2's complement for negative
@@ Line 17: / Line 22: @@
 </code>
 This returns the difference of two Q(A,B) numbers ''x'' and ''y''.
+<code act>
+template<pint A,B> function multu (int<A+B> x, y) : int<A+B>;
+</code>
+This returns the unsigned product of two Q(A,B) numbers ''x'' and ''y''.
+<code act>
+template<pint A,B> function divu (int<A+B> x, y) : int<A+B>;
+</code>
+This returns the unsigned division result ''x/y'' of two Q(A,B) numbers ''x'' and ''y''.
+<code act>
+template<pint A,B> function mults (int<A+B> x, y) : int<A+B>;
+</code>
+This returns the signed product of two Q(A,B) numbers ''x'' and ''y''.
+<code act>
+template<pint A,B> function divs (int<A+B> x, y) : int<A+B>;
+</code>
+This returns the signed division result ''x/y'' of two Q(A,B) numbers ''x'' and ''y''.
+<code act>
+template<pint A,B> function uminus (int<A+B> x) : int<A+B>;
+</code>
+This returns the negated value of a signed Q(A,B) number ''x''.