Update README.md

Author: SimoSbara

README.md

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-# ps1-benchmark
+# ps1-benchmark
+
+## Description
+
+A PS1 benchmark created with [PSn00bSDK](https://github.com/Lameguy64/PSn00bSDK).
+
+This benchmark is created for testing PS1 capabilities: graphics, commands and audio.
+
+### Testing
+This program is tested on [DuckStation](https://www.duckstation.org/) PS1 emulator.
+
+If you want to test it on a real PS1, you will need to mod it with a [chip](https://quade.co/ps1-modchip-guide/) or using a [modded memory card](https://github.com/brad-lin/FreePSXBoot).
+
+## Burning CD
+### Little Side Note
+You can't use CD-RW because the PS1 laser reader cannot read it, use only good CD-R (Verbatim or Sony).
+
+Download the latest release and burn .iso into a CD using any CD burner software.
+
+## Development
+This project is currently in development on Ubuntu (using WSL), Windows is not tested.
+
+Steps for setting up environment:
+* download [last PSn00bSDK release](https://github.com/Lameguy64/PSn00bSDK/releases) 
+* open ```sudo nano ~/.bashrc```
+* add in the end of the file ```export PS1_SDK_ROOT=/path/to/PSn00bSDK/root/folder```
+* ```source ~/.bashrc```
+* clone the repository ```https://github.com/SimoSbara/ps1-benchmark.git```
+* execute cmake ```cmake --preset default .```
+
+Now you can build the project with ```cmake --build ./build```