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[/] [cic/] [trunk/] [header/] [comb.h] - Blame information for rev 2

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SC_MODULE(comb)
{
        /// Design entity
        sc_in<bool>     CLR;                    // Asynchronous active high reset
        sc_in<bool>     CLK;                    // Rising edge clock
        sc_in<double>   combIN;                 // Comb stage input
        sc_out<double>  combOUT;                // Comb stage output
 
        /// Internal signals
        sc_signal<double> r, r_delay;   // Internal signal used for delay
 
        /// Constructor
        SC_CTOR(comb)
        {
                SC_METHOD(algorithm);
                        sensitive << combIN ;//<< r_delay;
 
                SC_METHOD(delay);
                        sensitive << CLK.pos();
 
                combOUT.initialize(0);
        }
 
        /// Concurrent processes
        void algorithm()
        {
                if (CLR.read() == true)
                {
                        r.write(0);
                }
                else
                {
                        r.write(combIN.read());
                        combOUT.write( combIN.read() - r_delay.read() );
                }
        }
 
        /*
         * This process emulates the non-recursive feedback from the
         * input to the output through a delay path.
         */
        void delay()
        {
                if (CLR.read() == true)
                {
                        r_delay.write(0);
                }
                else
                {
                        r_delay.write(r.read());
                }
        }
 
};
 
 
/* Comb Stage
 
                                                ***
    ------------------>* - *--->
                  |                             ***
                  |                      ^
                  |       *****          |
                  --->* z *------
                          *****
 
*/

Line No.	Rev	Author	Line
1	2	ahmed.shah	`SC_MODULE(comb)`
2			`{`
3			`/// Design entity`
4			`sc_in<bool> CLR; // Asynchronous active high reset`
5			`sc_in<bool> CLK; // Rising edge clock`
6			`sc_in<double> combIN; // Comb stage input`
7			`sc_out<double> combOUT; // Comb stage output`
8
9			`/// Internal signals`
10			`sc_signal<double> r, r_delay; // Internal signal used for delay`
11
12			`/// Constructor`
13			`SC_CTOR(comb)`
14			`{`
15			`SC_METHOD(algorithm);`
16			`sensitive << combIN ;//<< r_delay;`
17
18			`SC_METHOD(delay);`
19			`sensitive << CLK.pos();`
20
21			`combOUT.initialize(0);`
22			`}`
23
24			`/// Concurrent processes`
25			`void algorithm()`
26			`{`
27			`if (CLR.read() == true)`
28			`{`
29			`r.write(0);`
30			`}`
31			`else`
32			`{`
33			`r.write(combIN.read());`
34			`combOUT.write( combIN.read() - r_delay.read() );`
35			`}`
36			`}`
37
38			`/*`
39			`* This process emulates the non-recursive feedback from the`
40			`* input to the output through a delay path.`
41			`*/`
42			`void delay()`
43			`{`
44			`if (CLR.read() == true)`
45			`{`
46			`r_delay.write(0);`
47			`}`
48			`else`
49			`{`
50			`r_delay.write(r.read());`
51			`}`
52			`}`
53
54			`};`
55
56
57			`/* Comb Stage`
58
59			`***`
60			`------------------>* - *--->`
61			`\| ***`
62			`\| ^`
63			`\| ***** \|`
64			`--->* z *------`
65			`*****`
66
67			`*/`

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[/] [cic/] [trunk/] [header/] [comb.h] - Blame information for rev 2