Static And Automatic Methods

[dave_59]

The declaration of crc_temp inside task generateCRC1 is illegal for the very reason you are seeing incorrect results.

Function arguments not initializing variable inside the body

In reply to sanjeevs: Your failing code is illegal according to the SystemVerilog 1800-2012 LRM. (see 6.21 Scope and lifetime). Your simulator should have generated an error. You are not allowed to have an initialization on a variable whose lifetime is implicitly static and has the option to be declared automatic. This is because unlike most programming languages, the default lifetime of variables in a function is static, and initialization of static variables happens before time 0, not when c…