MATLAB REAL-TIME WORKSHOP 7 - TARGET LANGUAGE COMPILER Manuale di Servizio Scaricare il pdf (Pagina 121)

Loop Rolling

3-47

The generated code for this example is:

/* Gain Block: <Root>/Kp */

{

int_T i1;

real_T *u0 = &rtB.Constant1[0];

real_T *y0 = &rtB.Kp[0];

for(i1 = 0; i1 < 100; i1++) {

y0[i1] = u0[i1] * rtP.Kp.Gain;

}

rtB.Kp[100] = rtB.Constant2[1] * rtP.Kp.Gain;

rtB.Kp[101] = rtB.Constant2[0] * rtP.Kp.Gain;

u0 = &rtB.Constant3[0];

y0 = &rtB.Kp[102];

for(i1 = 0; i1 < 11; i1++) {

y0[i1] = u0[i1] * rtP.Kp.Gain;

}

Note that %roll requires rollVars to be specified. The rollVars variable tells

the loop roller which variables to set up within the roll scope. Note that in this

case

P was not declared despite the fact it was specified. This is because it is a

scalar value, hence, it need not be declared.

As you can see the

%roll degenerates to %foreach when the code doesn’t roll.

Thus, you should write the TLC code assuming the

%foreach case. That is,

don’t special case your code to handle both cases, rather, write the code once

RollRegion 1

RollRegion

2 & 3

RollRegion 4

1 2 ... 116 117 118 119 120 121 122 123 124 125 126 ... 281 282

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MATLAB REAL-TIME WORKSHOP 7 - TARGET LANGUAGE COMPILER Manuale di Servizio Pagina 121