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update readme
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kamkanev committed Sep 4, 2024
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30 changes: 16 additions & 14 deletions README.md
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This is a mini project of creating an operating system from scratch using all my knowage in computer architerture and operating systems. I'm using assembly x86 in 16 bit real mode togehter with mashine code.

![Screenshot OS](./screenshots/pong_sr.png)
<img title="" src="./screenshots/1.png" alt="Screenshot OS" width="554">

## RAM Memory table:

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| 0x0000_7C00 | 0x0000_7DFF | 512 bytes | Bootloader |
| 0x0000_7E00 | 0x0000_7FFF | 512 bytes | Files |
| 0x0000_8000 | 0x0000_81FF | 512 bytes | Shell |
| 0x0000_8200 | 0x0000_8399 | 512 bytes | Theme |

## Floppy image map:

| Start | End | Size | Description | Sector |
| ----------- | ----------- | --------- | ----------- | ------ |
| 0x0000_0000 | 0x0000_01FF | 512 bytes | bootloader | 0 |
| 0x0000_0200 | 0x0000_03FF | 512 bytes | files | 1 |
| 0x0000_0400 | 0x0000_05FF | 512 bytes | shell | 2 |
| 0x0000_0600 | 0x0000_07FF | 512 bytes | ls | 3 |
| 0x0000_0800 | 0x0000_09FF | 512 bytes | snake | 4 |
| 0x0000_0A00 | 0x0000_0BFF | 512 bytes | tetros | 5 |
| 0x0000_0C00 | 0x0000_0DFF | 512 bytes | pong | 6 |
| 0x0000_0000 | 0x0000_01FF | 512 bytes | bootloader | 1 |
| 0x0000_0200 | 0x0000_03FF | 512 bytes | files | 2 |
| 0x0000_0400 | 0x0000_05FF | 512 bytes | shell | 3 |
| 0x0000_0600 | 0x0000_07FF | 512 bytes | ls | 4 |
| 0x0000_0800 | 0x0000_09FF | 512 bytes | info | 5 |
| 0x0000_0A00 | 0x0000_0BFF | 512 bytes | clear | 6 |
| 0x0000_0C00 | 0x0000_0DFF | 512 bytes | theme | 7 |
| 0x0000_0E00 | 0x0000_0FFF | 512 bytes | snake | 8 |
| 0x0000_1000 | 0x0000_11FF | 512 bytes | tetros | 9 |
| 0x0000_1200 | 0x0000_13FF | 512 bytes | pong | 10 |

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At the momment the only working commands are `list` and all the commands use see there:

![listsc](./screenshots/list.png)
<img title="" src="./screenshots/list.png" alt="listsc" width="627" data-align="left"><img title="" src="./screenshots/theme.png" alt="theme" width="640" data-align="inline">

![pong](./screenshots/pong.png)



## Problems:

- [ ] Not all games return you the shell
- [ ] Not all games return you the shell

- [ ] Can't load files/games larger than **512bytes**.
- [ ] Can't load files/games larger than **512bytes**.

- [ ] Optimize the **stack** and **heap**
- [ ] Optimize the **stack** and **heap**
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