Differences

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

--- language:langs:chp [2025/05/01 16:36] – [Debugging during simulation] rajit
+++ language:langs:chp [2025/05/01 17:04] (current) – [Debugging during simulation] rajit
@@ Line 331: / Line 331: @@
 where ''N'' is the number of channels in the ''I'' array. This approach ensures that index for the array ''I[]'' is always a constant.
-===== Debugging during simulation =====
+===== Debugging and other support functions for simulation =====
 When running CHP simulations, it is often helpful to print debugging output during CHP development. To support this, the CHP language includes the ''log()'' command.
@@ Line 350: / Line 350: @@
 chp {
     ...
-   log ("Hello, got: ", x, " and that's that.");
+   log ("Hello, got: ", x+3, " and that's that.");
+   log ("%x This is hex: ", x+3);
+   log ("%b This is binary", x+3);
    ...
 }
 </code>
+Booleans are displayed as integers, with ''0'' corresponding to false, ''1'' corresponding to true. Integers can also be displayed in hexadecimal, binary, or decimal (the default). The integer display mode can be changed with a prefix in a string, as shown in the example above.
+Other support functions of this type are:
+  * ''warn(string)'' : displays a warning
+  * ''assert(expr,string)'' : the first argument has to be an expression, and if it is non-zero then an assertion failed message is displayed.
+  * In the standard ''log'', a single line is displayed based on the items in the argument list. To split this into multiple ''log'' commands, use:
+     * ''log_st()'' : start a log message
+     * ''log_p(item,item,item...)'' : append to the output message, with the same syntax as the ''log()'' command.
+     * ''log_nl()'' : new line
 ====== The chp-txt sublanguage ======