public void generateCode(SpinFXBlock sfxb) {
// at this moment, code implements a low pass.
// and not a very good one at that!
// coefficients
// need to figure out how to map these coefficients to freq/resonance
sfxb.comment(sfxb.getName());
double kfl = 1.0 - Math.exp((-6.283 * f0) / getSamplerate());
double kql = -0.13;
int input = this.getPin("Audio Input").getPinConnection().getRegister();
int lpal = sfxb.allocateReg();
int lpbl = sfxb.allocateReg();
int lpoutl = sfxb.allocateReg();
// int rmixl = sfxb.allocateReg();
// int kfx = sfxb.allocateReg();
// ;now do the low pass.
sfxb.skip(RUN, 3);
sfxb.clear();
sfxb.writeRegister(lpal, 0);
sfxb.writeRegister(lpbl, 0);
// ------------- start of filter code
// rdax lpal,1
sfxb.readRegister(lpal, kfl);
// mulx kfl
// sfxb.mulx(kfl);
// rdax lpbl,1
sfxb.readRegister(lpbl, 1.0);
// wrax lpbl,-1
sfxb.writeRegister(lpbl, -1.0);
// rdax lpal,kql
sfxb.readRegister(lpal, kql);
// rdax input,1
sfxb.readRegister(input, 1.0);
// wrax lpoutl,1 ;lp output
sfxb.writeRegister(lpoutl, kfl);
// mulx kfl
// sfxb.mulx(kfl);
// rdax lpal,1
sfxb.readRegister(lpal, 1.0);
// wrax lpal,0
sfxb.writeRegister(lpal, 0);
// rdax lpbl,-1
sfxb.readRegister(lpbl, -1.0);
// rdax rmixl,1
sfxb.readRegister(input, 1.0);
// rdax lpbl,1
sfxb.readRegister(lpbl, 1.0);
this.getPin("Audio Output").setRegister(lpoutl);
System.out.println("BPF code gen!");
}
public void generateCode(SpinFXBlock sfxb) {
// Iterate through mem and equ statements, allocate accordingly
sfxb.comment(getName());
SpinCADPin sp = null;
// Iterate through pin definitions and connect or assign as needed
sp = this.getPin("Input 1").getPinConnection();
int inp1 = -1;
if (sp != null) {
inp1 = sp.getRegister();
}
sp = this.getPin("Input 2").getPinConnection();
int inp2 = -1;
if (sp != null) {
inp2 = sp.getRegister();
}
sp = this.getPin("Fade").getPinConnection();
int input0 = -1;
if (sp != null) {
input0 = sp.getRegister();
}
// finally, generate the instructions
output1 = sfxb.allocateReg();
if (this.getPin("Input 1").isConnected() == true) {
if (this.getPin("Input 2").isConnected() == true) {
sfxb.readRegister(inp1, -gain1);
sfxb.readRegister(inp2, gain2);
if (this.getPin("Fade").isConnected() == true) {
sfxb.mulx(input0);
}
sfxb.readRegister(inp1, gain1);
} else {
sfxb.readRegister(inp1, gain1);
if (this.getPin("Fade").isConnected() == true) {
sfxb.mulx(input0);
}
}
} else {
sfxb.readRegister(inp2, gain2);
if (this.getPin("Fade").isConnected() == true) {
sfxb.mulx(input0);
}
}
sfxb.writeRegister(output1, 0);
this.getPin("Audio Output").setRegister(output1);
}