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// This file is part of www.nand2tetris.org
// and the book "The Elements of Computing Systems"
// by Nisan and Schocken, MIT Press.
// File name: tools/builtIn/RAM4K.hdl
/**
* Memory of 4K registers, each 16-bit wide.
* The chip facilitates read and write operations, as follows:
* Read: out(t) = RAM4K[address(t)](t)
* Write: If load(t-1) then RAM4K[address(t-1)](t) = in(t-1)
* In words: the chip always outputs the value stored at the memory
* location specified by address. If load == 1, the in value is loaded
* into the memory location specified by address. This value becomes
* available through the out output starting from the next time step.
*/
CHIP RAM4K {
IN in[16], load, address[12];
OUT out[16];
BUILTIN RAM4K;
CLOCKED in, load;
}
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