36 lines
919 B
Plaintext
36 lines
919 B
Plaintext
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:vpi_module "system";
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;
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; This example demonstrates a simple blocking assignment to a
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; reg vector within a module.
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;
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main .scope module, "main" "main";
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; This declares a "reg" data type named "test" in the current scope.
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; The bit range is given for the purposes of VPI access. The range
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; corresponds to the declaration "reg [7:0] test", so leads to an 8
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; bit wide vector.
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test .var "test", 7, 0;
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; The %set/v opcode writes a value to the target .var vector. The
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; first operand is the label of the .var object. The second and
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; third operands are the base and width of the bit set that is to
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; be made into the vector to write.
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T0 %set/v test, 0, 8 ;
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%vpi_call "$display", "test = %b", test;
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%set/v test, 1, 8 ;
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%vpi_call "$display", "test = %b", test;
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%set/v test, 2, 8 ;
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%vpi_call "$display", "test = %b", test;
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%set/v test, 3, 8 ;
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%vpi_call "$display", "test = %b", test;
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%end;
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.thread T0;
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