Differences

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--- language:connections [2023/04/09 19:10]
rajit [Simple connections]
+++ language:connections [2023/04/09 19:13] (current)
rajit [Assertions]
@@ Line 77: / Line 77: @@
 defined once.
-===== Assertions =====
-Sometimes it is useful to be able to check that a parameter (or an expression of parameters) has a reasonable
-value. To express this, ACT supports explicit assertions. We use Hoare's syntax for assertions, so the assertion that
-''x'' must be ''8'' would be written
-<code act>
-{x=8};
-</code>
-If a more meaningful message is required, the following syntax is also supported:
-<code act>
-{x=8 : "This assertion failed"};
-</code>
-which also reports the message specified when the assertion failed.
-During circuit development/debugging, it may be helpful to assert that two signals are connected to each
-other or in fact disconnected from each other at a particular point during circuit construction. To assert that ''a'' is connected to ''b'', use:
-<code act>
-bool a;
-bool b;
-{ a !== b : "a and b are connected connected!" };  // this will pass
-a = b;
-{ a === b : "a and b are not connected!" }; // this will pass
-{ a !== b : "a and b are connected connected!" };  // this will fail
-</code>
-The operators ''==='' and ''!=='' are used to check that the two signals are connected or disconnected at the point the  assertion was encountered during circuit construction.
 ===== Array and subrange connections =====