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# nand2tetris
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Working my way through the [Nand to Tetris Course ](https://www.nand2tetris.org/ )
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- Download the latest `nand2tetris.zip` from the book website, and overwrite everything in the `projects` and `tools` directory.
- Remember to run `chmod +X tools/*.sh` if you're on \*nix.
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## [Project 1: Boolean Logic](https://www.nand2tetris.org/project01)
Build order as per the website. Cost for each gate in NAND in brackets.
- [x] `Nand` (primitive)
- [x] `Not` (1)
- [x] `Or` (3)
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- [x] `Xor` (6, Can be improved)
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- [x] `And` (2)
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- [x] `Mux` (8, Took me ages. Can be improved)
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- [x] `DMux` (5, Super Fun)
- [x] `Not16` (16)
- [x] `And16` (32)
- [x] `Or16` (48)
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- [x] `Mux16` (113)
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- [x] `Or8Way` (21)
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- [x] `Mux4Way16` (339)
- [x] `Mux8Way16` (791)
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- [x] `DMux4Way` (37, Fun)
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- [x] `DMux8Way` (101)
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## [Project 2: Boolean Arithmetic](https://www.nand2tetris.org/project02)
- [x] HalfAdder (Xor+And)
- [x] FullAdder (2 x HalfAdder, 1 Or)
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- [x] Add16 (1 x HalfAdder, 15 x FullAdder)
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- [x] Inc16 (1 x Add16)
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- [x] ALU (nostat)
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- [x] ALU (complete)
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## [Project 3: Memory](https://www.nand2tetris.org/project03)
Make sure you read through the [Hardware Simulator Tutorial ](https://b1391bd6-da3d-477d-8c01-38cdf774495a.filesusr.com/ugd/44046b_bfd91435260748439493a60a8044ade6.pdf ) to understand the clock in the simulator.
- [x] DFF (primitive)
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- [x] Bit (1 Mux, 1DFF)
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- [x] Register (16 Bits)
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- [x] RAM8 (8 Registers, 1 DMux8Way, 1 Mux8Way16)
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- [x] RAM64 (8 RAM8, 1 DMux8Way, 1 Mux8Way16)
- [x] RAM512 (8 RAM64, 1 DMux8Way, 1 Mux8Way16)
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- [x] RAM4K (8 RAM512, 1 DMux8Way, 1 Mux8Way16)
- [x] RAM16K (8 RAM4K, 1 DMux8Way, 1 Mux8Way16)
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- [ ] PC
