
Hi!
Could you please help me? Why I cannot use this names  error in bold:
/*
* Multiplies two 4Bit numbers.
* The result is therefore 8 bits long.
* Only use Addierer4 and Identity4.
*/
CHIP Multiplikator4 {
IN a[4], b[4];
OUT out[8];
PARTS:
Identity4 (in[0]=b[0], in[1]=b[1], in[2]=b[2], in[3]=b[3], en=a[0], out[0]=out[0], out[1]=out1, out[2]=out2, out[3]=out3);
Identity4 (in[0]=b[0], in[1]=b[1], in[2]=b[2], in[3]=b[3], en=a[1], out[0]=out7, out[1]=out6, out[2]=out5, out[3]=out4);
Addierer4 (a[0]=out7, a[1]=out6, a[2]=out5, a[3]=out4, b[3]=0, b[2]=out3, b[1]=out2, b[0]=out1, carry=carry1, out[0]=out1, out[1]=out10, out[2]=out9, out[3]=out8);
}
Thank you very much in advance!
