mirror of
https://github.com/soconnor0919/eceg431.git
synced 2025-12-11 06:34:43 -05:00
23 lines
656 B
Plaintext
23 lines
656 B
Plaintext
// 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/1/Mux4Way16.hdl
|
|
/**
|
|
* 4-way 16-bit multiplexor:
|
|
* out = a if sel = 00
|
|
* b if sel = 01
|
|
* c if sel = 10
|
|
* d if sel = 11
|
|
*/
|
|
CHIP Mux4Way16 {
|
|
IN a[16], b[16], c[16], d[16], sel[2];
|
|
OUT out[16];
|
|
|
|
PARTS:
|
|
// sel[0] pick from each group
|
|
Mux16(a=a, b=b, sel=sel[0], out=lowGroup); // group ab
|
|
Mux16(a=c, b=d, sel=sel[0], out=highGroup); // group cd
|
|
// sel[1] pick which group
|
|
Mux16(a=lowGroup, b=highGroup, sel=sel[1], out=out);
|
|
}
|