25 lines
821 B
Plaintext
25 lines
821 B
Plaintext
// This file is part of www.nand2tetris.org
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// and the book "The Elements of Computing Systems"
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// by Nisan and Schocken, MIT Press.
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// File name: tools/builtIn/RAM512.hdl
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/**
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* Memory of 512 registers, each 16-bit wide.
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* The chip facilitates read and write operations, as follows:
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* Read: out(t) = RAM512[address(t)](t)
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* Write: If load(t-1) then RAM512[address(t-1)](t) = in(t-1)
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* In words: the chip always outputs the value stored at the memory
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* location specified by address. If load == 1, the in value is loaded
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* into the memory location specified by address. This value becomes
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* available through the out output starting from the next time step.
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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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BUILTIN RAM512;
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CLOCKED in, load;
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}
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