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Autosave: 2022-12-31 12:30:04

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thomasabishop 2022-12-31 12:30:04 +00:00
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Computer_Architecture/Hardware_simulation.md
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@ -9,10 +9,12 @@ tags: [HDL, nand-to-tetris]
In order to test our [HDL](/Computer_Architecture/Hardware_Description_Language.md) files we load them into the hardware simulator program shown below:
<img src="/home/thomas/repos/computer_science/_img/hardware-simulator.png" width="500">
There are several simulation options:
- interactive
- script-based (where we load a test script into the simulator along with the HDL file
- comparative (running the HDL program against our intended output specified in the `.out` file)
The image below shows a basic interactive usage of the simulator. We have uploaded the `Xor.hdl` file into the simulator and changed the input pins to `a=1, b=0` and clicked the calculator icon. This then shows the output and internal pin values for these inputs.
<img src="/home/thomas/repos/computer_science/_img/hardware-sim-basic.png" >

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