[From Nand to Tetris] Project 1 (2) 16-bit variants(Not16, And16, Or16, Mux16)

https://nand2tetris-hdl.github.io/#mux16

HDL API & Gate Design

 

기존 And, Not, Or,Mux 연산을 16bit로만 바꿔주면 된다.

1)Not16

/**
 * 16-bit Not gate:
 * for i = 0, ..., 15:
 * out[i] = Not(a[i])
 */
CHIP Not16 {
    IN in[16];
    OUT out[16];

    PARTS:
    Nand16(a= in[0..15], b= in[0..15], out= out);
}

2)And16

/**
 * 16-bit And gate:
 * for i = 0, ..., 15:
 * out[i] = a[i] And b[i] 
 */
CHIP And16 {
    IN a[16], b[16];
    OUT out[16];

    PARTS:
    Nand16(a = a[0..15], b = b[0..15], out = temp);
    Not16(in= temp, out= out);
}

 

3)Or16

/**
 * 16-bit Or gate:
 * for i = 0, ..., 15:
 * out[i] = a[i] Or b[i] 
 */
CHIP Or16 {
    IN a[16], b[16];
    OUT out[16];

    PARTS:
    Not16(in= a[0..15], out= temp1);
    Not16(in= b[0..15], out= temp2);
    Nand16(a = temp1, b = temp2, out = out);
}

4)Mux16

16비트에 1비트를 할당할 수가 없다.

1비트를 16비트로 확장하는 방법도 딱히 없는 듯 하여 모범 풀이에도 이렇게 반복해서 쓰도록 나와있음.

/**
 * 16-bit multiplexor: 
 * for i = 0, ..., 15:
 * if (sel = 0) out[i] = a[i], else out[i] = b[i]
 */
CHIP Mux16 {
    IN a[16], b[16], sel;
    OUT out[16];

    PARTS:
    Mux(a=a[0], b=b[0], sel=sel, out=out[0]);
    Mux(a=a[1], b=b[1], sel=sel, out=out[1]);
    Mux(a=a[2], b=b[2], sel=sel, out=out[2]);
    Mux(a=a[3], b=b[3], sel=sel, out=out[3]);
    Mux(a=a[4], b=b[4], sel=sel, out=out[4]);
    Mux(a=a[5], b=b[5], sel=sel, out=out[5]);
    Mux(a=a[6], b=b[6], sel=sel, out=out[6]);
    Mux(a=a[7], b=b[7], sel=sel, out=out[7]);
    Mux(a=a[8], b=b[8], sel=sel, out=out[8]);
    Mux(a=a[9], b=b[9], sel=sel, out=out[9]);
    Mux(a=a[10], b=b[10], sel=sel, out=out[10]);
    Mux(a=a[11], b=b[11], sel=sel, out=out[11]);
    Mux(a=a[12], b=b[12], sel=sel, out=out[12]);
    Mux(a=a[13], b=b[13], sel=sel, out=out[13]);
    Mux(a=a[14], b=b[14], sel=sel, out=out[14]);
    Mux(a=a[15], b=b[15], sel=sel, out=out[15]);

}