QkoSad
28 lines
1.2 KiB
Plaintext
Executable File
28 lines
1.2 KiB
Plaintext
Executable File
// This file is part of the materials accompanying the book
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// "The Elements of Computing Systems" by Nisan and Schocken,
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// MIT Press. Book site: www.idc.ac.il/tecs
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// File name: projects/03/b/RAM512.hdl
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/**
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* Memory of 512 registers, each 16 bit-wide. Out holds the value
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* stored at the memory location specified by address. If load==1, then
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* the in value is loaded into the memory location specified by address
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* (the loaded value will be emitted to out from the next time step onward).
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*/
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CHIP RAM512 {
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IN in[16], load, address[9];
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OUT out[16];
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PARTS:
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DMux8Way(in=load,sel=address[0..2],a=a,b=b,c=c,d=d,e=e,f=f,g=g,h=h);
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RAM64(in=in,load=a,address=address[3..8],out=outa);
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RAM64(in=in,load=b,address=address[3..8],out=outb);
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RAM64(in=in,load=c,address=address[3..8],out=outc);
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RAM64(in=in,load=d,address=address[3..8],out=outd);
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RAM64(in=in,load=e,address=address[3..8],out=oute);
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RAM64(in=in,load=f,address=address[3..8],out=outf);
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RAM64(in=in,load=g,address=address[3..8],out=outg);
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RAM64(in=in,load=h,address=address[3..8],out=outh);
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Mux8Way16(a=outa,b=outb,c=outc,d=outd,e=oute,f=outf,g=outg,h=outh,sel=address[0..2],out=out);
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} |