[英]How can I use an struct as a signal type in SystemC?
I'm trying to simulate in SystemC a block which adds the red component of two pixels P1
and P2
, and always keeps the green and blue components of pixel P1
. 我正在尝试在SystemC中模拟一个块,该块添加两个像素
P1
和P2
的红色分量,并始终保留像素P1
的绿色和蓝色分量。 I have declared the pixel as an struct and its overload function in the following way: 我已通过以下方式将像素声明为结构及其重载函数:
struct pixel {
sc_uint<8> r;
sc_uint<8> g;
sc_uint<8> b;
pixel( sc_uint<8> _r = 0, sc_uint<8> _g = 0, sc_uint<8> _b = 0): r(_r), g(_g), b(_b) { }
bool operator == (const pixel &other) {
return (r == other.r) && (g == other.g) && (b == other.b);
}
// Displaying
friend ostream& operator << ( ostream& o, const pixel& P ) {
o << "{" << P.r << "," << P.g << "," << P.b << "}" ;
return o;
}
};
//Overload function
void sc_trace( sc_trace_file* _f, const pixel& _foo, const std::string& _s ) {
sc_trace( _f, _foo.r, _s + "_r" );
sc_trace( _f, _foo.g, _s + "_g" );
sc_trace( _f, _foo.b, _s + "_b" );
}
Then I have coded the adder module considering that the signals sc_in
are of type pixel
, as follows: 然后,考虑到信号
sc_in
的类型为pixel
,我对加法器模块进行了编码,如下所示:
SC_MODULE(adder){
sc_in<pixel> pin1;
sc_in<pixel> pin2;
sc_out<pixel> pout;
SC_CTOR(adder){
SC_METHOD(addpixel);
sensitive << pin1 << pin2;
}
void addpixel(){
sc_uint<8> ir;
sc_uint<8> ig;
sc_uint<8> ib;
ir = pin1.r + pin2.r;
ig = pin1.g;
ib = pin1.b;
pout = pixels(ir,ig,ib);
cout << " P1 = " << pin1 << endl;
cout << " P2 = " << pin2 << endl;
}
};
I get the following compiling errors: 我收到以下编译错误:
test.cpp:46:13: error: ‘class sc_core::sc_in<pixel>’ has no member named ‘r’
ir = pin1.r + pin2.r;
^
test.cpp:46:22: error: ‘class sc_core::sc_in<pixel>’ has no member named ‘r’
ir = pin1.r + pin2.r;
^
test.cpp:47:13: error: ‘class sc_core::sc_in<pixel>’ has no member named ‘g’
ig = pin1.g;
^
test.cpp:48:13: error: ‘class sc_core::sc_in<pixel>’ has no member named ‘b’
ib = pin1.b;
^
<builtin>: recipe for target 'test' failed
I would like to know how could the method addpixel
access to each component RGB of the pixels and make the operation. 我想知道如何可以在方法
addpixel
到像素的每个组件RGB访问并进行操作。 If I delete the error lines I arrive to display in the terminal the values of pixels P1
and P2
. 如果删除错误线,我将在终端中显示像素
P1
和P2
的值。
sc_in<pixel>
is not pixel
. sc_in<pixel>
不是pixel
。 I guess you should fetch the value via sc_in::read()
like this: 我猜你应该像这样通过
sc_in::read()
获取值:
void addpixel(){
sc_uint<8> ir;
sc_uint<8> ig;
sc_uint<8> ib;
pixel pin1_value = pin1.read();
pixel pin2_value = pin2.read();
ir = pin1_value.r + pin2_value.r;
ig = pin1_value.g;
ib = pin1_value.b;
pout = pixels(ir,ig,ib);
cout << " P1 = " << pin1_value << endl;
cout << " P2 = " << pin2_value << endl;
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.