add exception expression functions and minor updates

introduction/ConditionalBreakpoint.md

@@ -6,6 +6,7 @@ This section describes the conditional breakpoint capability in x64dbg.
 
 When a breakpoint is hit, x64dbg will do the following things:
 
+- If the breakpoint is an exception breakpoint, set the system variable `$breakpointexceptionaddress` to the exception address;
 - Increment the *hit counter*;
 - Set the system variable `$breakpointcounter` to the value of *hit counter*;
 - If *break condition* is set, evaluate the [expression](./Expressions.rst) (defaults to `1`);

introduction/Expression-functions.md

@@ -97,6 +97,17 @@ This assumes the return address is on the stack (eg you are inside the function)
 * `arg.get(index)` : Gets the argument at `index` (zero-based).
 * `arg.set(index, value)` : Sets the argument at `index` (zero-based) to `value`.
 
+## Exceptions
+
+This is a set of functions to get information about the last exception. They can be used for exceptions breakpoints to construct more advanced conditions.
+
+* `ex.firstchance()` : Whether the last exception was a first chance exception.
+* `ex.addr()` : Last exception address.
+* `ex.code()` : Last exception code.
+* `ex.flags()` : Last exception flags.
+* `ex.infocount()` : Last exception information count (number of parameters).
+* `ex.info(index)` : Last exception information, zero if index is out of bounds.
+
 ## Plugins
 
 Plugins can register their own expression functions. See the plugin documentation for more details.

introduction/inability.md

@@ -4,5 +4,4 @@ This section gives a list of features currently not supported in x64dbg. You are
 
 * Fine-grained memory breakpoint. Unlike other debuggers, memory breakpoint is supported only on a whole memory page, but not on a subrange of the memory page.
 * Search for non-English strings. Searching for non-English strings via the built-in strings search may not be able to find all the non-English strings.
-* Log non-English strings into log with built-in "{s:[...]}" syntax.
-* Other pending issues at http://issues.x64dbg.com
+* Other pending issues at [issues.x64dbg.com](http://issues.x64dbg.com).