void TestPin::generateMicrobe( FlowCode *code )
{
const QString pin = dataString("pin");
const QString port = "PORT" + QString((QChar)pin[1]);
const QString bit = (QChar)pin[2];
handleIfElse( code, port+"."+bit+" is high", port+"."+bit+" is low", "stdoutput", "altoutput" );
#if 0
QString newCode;
newCode += "btfss "+port+","+bit+" ; Check if pin is clear\n";
newCode += gotoCode("altoutput") + " ; Pin is low\n";
newCode += gotoCode("stdoutput") + " ; Pin is high, continue on from this point\n";
code->addCodeBlock( id(), newCode );
#endif
}
void VarComparison::generateMicrobe( FlowCode *code )
{
QString var1 = dataString("0var1");
QString var2 = dataString("2var2");
QString test = dataString("1op");
handleIfElse( code, var1+" "+test+" "+var2, var1+" "+oppOp(test)+" "+var2, "stdoutput", "altoutput" );
#if 0
code->addCode( "if "+var1+" "+test+" "+var2+"\n{\n" );
code->addCodeBranch( outputPart("stdoutput") );
code->addCode("}");
if ( outputPart("altoutput") )
{
code->addCode("else\n{");
code->addCodeBranch( outputPart("altoutput") );
code->addCode("}");
}
#endif
#if 0
QString newCode;
if ( FlowCode::isLiteral(var2) ) newCode += "movlw " + var2 + " ; Move literal to register w\n";
else
{
code->addVariable(var2);
newCode += "movf " + var2 + ",0 ; Move " + var2 + " to register w\n";
}
if ( FlowCode::isLiteral(var1) ) newCode += "sublw " + var1 + " ; Subtract register w from " + var1 + ", placing result in w\n";
else
{
code->addVariable(var1);
newCode += "subwf " + var1 + ",0 ; Subtract register w from " + var1 + ", placing result in w\n";
}
if ( test == "==" )
{
// check: works
newCode += "btfss STATUS,2 ; Check if zero flag is set\n";
newCode += gotoCode("altoutput") + " ; Result from calculation was non-zero; hence comparison is false\n";
newCode += gotoCode("stdoutput") + " ; Ouput was zero; hence comparison is true, so continue from this point\n";
}
else if ( test == "!=" )
{
// check: works
newCode += "btfsc STATUS,2 ; Check if zero flag is clear\n";
newCode += gotoCode("altoutput") + " ; Result from calculation was zero; hence comparison is false\n";
newCode += gotoCode("stdoutput") + " ; Output was non-zero; hence comparison is true, so continue from this point\n";
}
else if ( test == ">=" )
{
// check: works
newCode += "btfss STATUS,0 ; Check if carry flag is set\n";
newCode += gotoCode("altoutput") + " ; Result from calculation is negative; hence comparison is false\n";
newCode += gotoCode("stdoutput") + " ; Result from calculation is positive or zero; so continue from this point\n";
}
else if ( test == ">" )
{
// check: works
newCode += "btfss STATUS,0 ; Check if carry flag is set\n";
newCode += gotoCode("altoutput") + " ; Result is negative; hence comparison is false\n";
newCode += "btfsc STATUS,2 ; Check if zero flag is set\n";
newCode += gotoCode("altoutput") + " ; Result is zero; hence comparison is false\n";
newCode += gotoCode("stdoutput") + " ; Comparison is true, so continue from this point\n";
}
else if ( test == "<" )
{
// check: works
newCode += "btfsc STATUS,0 ; Check if carry flag is set\n";
newCode += gotoCode("altoutput");
newCode += gotoCode("stdoutput");
}
else if ( test == "<=" )
{
// check: works
newCode += "btfsc STATUS,2 ; Check if result is zero\n";
newCode += gotoCode("stdoutput") + " ; Result is zero; hence comparison is true\n";
newCode += "btfsc STATUS,0 ; Check if carry flag is set\n";
newCode += gotoCode("altoutput") + " ; Result is positive (not zero, has already tested for this); hence comparison is false\n";
newCode += gotoCode("stdoutput") + " ; Result is negative, hence comparison is true\n";
}
code->addCodeBlock( id(), newCode );
#endif
}
