// This file is part of www.nand2tetris.org // and the book "The Elements of Computing Systems" // by Nisan and Schocken, MIT Press. // File name: projects/01/Or.hdl
/**
- Or gate:
- out = 1 if (a == 1 or b == 1)
-
0 otherwise
*/
CHIP Or { IN a, b; OUT out;
PARTS:
Not(in=a, out=nota);
Not(in=b,out=notb);
Nand(a=nota, b=notb, out=out);
}
// This file is part of www.nand2tetris.org // and the book "The Elements of Computing Systems" // by Nisan and Schocken, MIT Press. // File name: projects/01/Not.hdl
/**
- Not gate:
- out = not in */
CHIP Not { IN in; OUT out;
PARTS:
Nand( a=in, b=in, out=out);
}
// // This file is part of www.nand2tetris.org // // and the book "The Elements of Computing Systems" // // by Nisan and Schocken, MIT Press. // // File name: projects/01/And.hdl
// /** // * And gate: // * out = 1 if (a == 1 and b == 1) // * 0 otherwise // */
// CHIP And { // IN a, b; // OUT out;
// PARTS: // Nand(a=a, b=b, out=AnandB); // Not(in=AnandB, out=out); // }
// This file is part of www.nand2tetris.org // and the book "The Elements of Computing Systems" // by Nisan and Schocken, MIT Press. // File name: projects/01/And.hdl
/**
- And gate: out = 1 if {a==1 and b==1}, 0 otherwise
- And gate: if {a==1 and b==1} then out = 1 else out = 0 */
CHIP And { IN a, b; OUT out;
PARTS:
// Put your code here:
// Xor(a=a,b=b,out=out); Nand(a=a, b=b, out=c); Nand(a=c, b=c, out=out); }
// This file is part of www.nand2tetris.org
// and the book "The Elements of Computing Systems" // by Nisan and Schocken, MIT Press. // File name: projects/01/And16.hdl
/**
- 16-bit bitwise And:
- for i = 0..15: out[i] = (a[i] and b[i]) */
CHIP And16 { IN a[16], b[16]; OUT out[16];
PARTS:
// Put your code here:
Nand(a=a[0], b=b[0], out=c0);
Nand(a=c0, b=c0, out=out[0]);
Nand(a=a[1], b=b[1], out=c1);
Nand(a=c1, b=c1, out=out[1]);
Nand(a=a[2], b=b[2], out=c2);
Nand(a=c2, b=c2, out=out[2]);
Nand(a=a[3], b=b[3], out=c3);
Nand(a=c3, b=c3, out=out[3]);
Nand(a=a[4], b=b[4], out=c4);
Nand(a=c4, b=c4, out=out[4]);
Nand(a=a[5], b=b[5], out=c5);
Nand(a=c5, b=c5, out=out[5]);
Nand(a=a[6], b=b[6], out=c6);
Nand(a=c6, b=c6, out=out[6]);
Nand(a=a[7], b=b[7], out=c7);
Nand(a=c7, b=c7, out=out[7]);
Nand(a=a[8], b=b[8], out=c8);
Nand(a=c8, b=c8, out=out[8]);
Nand(a=a[9], b=b[9], out=c9);
Nand(a=c9, b=c9, out=out[9]);
Nand(a=a[10], b=b[10], out=c10);
Nand(a=c10, b=c10, out=out[10]);
Nand(a=a[11], b=b[11], out=c11);
Nand(a=c11, b=c11, out=out[11]);
Nand(a=a[12], b=b[12], out=c12);
Nand(a=c12, b=c12, out=out[12]);
Nand(a=a[13], b=b[13], out=c13);
Nand(a=c13, b=c13, out=out[13]);
Nand(a=a[14], b=b[14], out=c14);
Nand(a=c14, b=c14, out=out[14]);
Nand(a=a[15], b=b[15], out=c15);
Nand(a=c15, b=c15, out=out[15]);
}
// This file is part of www.nand2tetris.org // and the book "The Elements of Computing Systems" // by Nisan and Schocken, MIT Press. // File name: projects/01/Xor.hdl
/**
- Exclusive-or gate:
- out = not (a == b) */
CHIP Xor { IN a, b; OUT out;
PARTS:
Nand(a=a,b=b, out=nandab);
Or(a=a, b=b, out=orab);
And(a=nandab, b=orab, out=out);
}
// This file is part of www.nand2tetris.org // and the book "The Elements of Computing Systems" // by Nisan and Schocken, MIT Press. // File name: projects/01/Not16.hdl
/**
- 16-bit Not:
- for i=0..15: out[i] = not in[i] */
CHIP Not16 { IN in[16]; OUT out[16];
PARTS:
// Put your code here:
Not(in=in[0], out=out[0]);
Not(in=in[1], out=out[1]);
Not(in=in[2], out=out[2]);
Not(in=in[3], out=out[3]);
Not(in=in[4], out=out[4]);
Not(in=in[5], out=out[5]);
Not(in=in[6], out=out[6]);
Not(in=in[7], out=out[7]);
Not(in=in[8], out=out[8]);
Not(in=in[9], out=out[9]);
Not(in=in[10], out=out[10]);
Not(in=in[11], out=out[11]);
Not(in=in[12], out=out[12]);
Not(in=in[13], out=out[13]);
Not(in=in[14], out=out[14]);
Not(in=in[15], out=out[15]);
}
// This file is part of www.nand2tetris.org // and the book "The Elements of Computing Systems" // by Nisan and Schocken, MIT Press. // File name: projects/01/Or8Way.hdl
/**
- 8-way Or:
- out = (in[0] or in[1] or ... or in[7]) */
CHIP Or8Way { IN in[8]; OUT out;
PARTS:
Or(a=in[0], b=in[1], out=c1);
Or(a=in[2], b=in[3], out=c2);
Or(a=in[4], b=in[5], out=c3);
Or(a=in[6], b=in[7], out=c4);
Or(a=c1, b=c2, out=c5);
Or(a=c3, b=c4, out=c6);
Or(a=c5, b=c6, out=out);
}
// This file is part of www.nand2tetris.org // and the book "The Elements of Computing Systems" // by Nisan and Schocken, MIT Press. // File name: projects/01/Or16.hdl
/**
- 16-bit bitwise Or:
- 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, out=nota);
Not16(in=b, out=notb);
And16(a=nota, b=notb, out=x );
Not16(in=x, out=out);
}
// This file is part of www.nand2tetris.org // and the book "The Elements of Computing Systems" // by Nisan and Schocken, MIT Press. // File name: projects/01/Mux16.hdl
/**
- 16-bit multiplexor:
- for i = 0..15 out[i] = a[i] if sel == 0
-
b[i] if sel == 1
*/
CHIP Mux16 { IN a[16], b[16], sel; OUT out[16];
PARTS:
// Put your code here:
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]);
}
// This file is part of www.nand2tetris.org // and the book "The Elements of Computing Systems" // by Nisan and Schocken, MIT Press. // File name: projects/01/Mux.hdl
/**
- Multiplexor:
- out = a if sel == 0
-
b otherwise
*/
CHIP Mux { IN a, b, sel; OUT out;
PARTS:
Not(in=sel, out=notsel);
And(a=a,b=notsel, out=c);
And(a=b, b=sel, out=d);
Or(a=c,b=d, out=out);
}
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