CODEWITHSUNDEEP
systemc
C.Mi
C.Mi

Reputation: 37

SC_METHOD Exception

I'm trying to use a SC_METHOD in my simulation. Here is the code:

gcrypt::gcrypt(sc_module_name name): 
    gcrypt_base(name)
{
    SC_METHOD(on_clock_update);
    sensitive << clock;
    dont_initialize();
};

void gcrypt::on_clock_update()
 {
     if (clock.read() == 0)
     {
         SC_REPORT_WARNING(name(), "Invalid clock port value of 0");
         _ns_per_cycle = 0;
         return;
     }
     _ns_per_cycle = 1e9 / clock.read();
 }

The gcrypt_base constructor is:

gcrypt_base::gcrypt_base(sc_module_name name) :
    sc_module(name),
    ...
{
    ...
}

I get this exception thrown by SC_METHOD:

Exception thrown at 0x6FB78281 (vcruntime140d.dll) in SystemCModuleTest.exe: 0xC0000005: Access violation reading location 0x115348EF.

I saw the __vfptr value was "Unable to read memory".

How to solve this problem?

Upvotes: 1

Views: 223

Answers (1)

DarrylLawson
DarrylLawson

Reputation: 742

I believe you haven't specified the /vmg option while compiling your code. The /vmg option is required because of the way SystemC implements method processes.

Upvotes: 1

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