Do some stuff

docs/memory.md

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+# Memory Map Documentation
+
+#### PCM Buffer
+
+| Function                         | Address  |
+|----------------------------------|----------|
+| **PCM Voice Buffer (High Byte)** | `0xDF00` |
+| **PCM Voice Buffer (Low Byte)**  | `0xDF01` |
+
+If you want to write to both, write low byte first
+
+#### Voice Generators
+
+| Voice       | Volume   | Waveform | Phase    | Frequency (High Byte, write last) | Frequency (Low Byte) |
+|-------------|----------|----------|----------|-----------------------------------|----------------------|
+| **Voice 0** | `0xDF02` | `0xDF03` | `0xDF04` | `0xDF05`                          | `0xDF06`             |
+| **Voice 1** | `0xDF07` | `0xDF08` | `0xDF09` | `0xDF0A`                          | `0xDF0B`             |
+| **Voice 2** | `0xDF0C` | `0xDF0D` | `0xDF0E` | `0xDF0F`                          | `0xDF10`             |
+
+#### Display Controls
+
+| Display       | Address  |
+|---------------|----------|
+| **Display A** | `0xDF12` |
+| **Display B** | `0xDF13` |
+| **Display C** | `0xDF14` |
+| **Display D** | `0xDF15` |
+| **Display E** | `0xDF16` |
+| **Display F** | `0xDF17` |
+| **Display G** | `0xDF18` |
+| **Display H** | `0xDF19` |
+
+#### Switch Inputs
+
+| Switch Bank    | First 2 rows Address | Last 2 rows Address |
+|----------------|----------------------|---------------------|
+| **Switches A** | `0xDF20`             | `0xDF21`            |
+| **Switches B** | `0xDF22`             | `0xDF23`            |
+| **Switches C** | `0xDF24`             | `0xDF25`            |
+| **Switches D** | `0xDF26`             | `0xDF27`            |
+
+### GPU Memory
+
+- **Base Address:** `0xEF00`
+- **Size:** `160 × 160` pixels
+- **End Address:** `0xEF00 + (160 × 160) = GPU_END`
+- **Color Encoding:**
+    - Red: Bits `[7:5]` scaled (0-7 → 0-255)
+    - Green: Bits `[4:2]` scaled (0-7 → 0-255)
+    - Blue: Bits `[1:0]` scaled (0-3 → 0-255)
+    - Pixels are stored in a texture-compatible `RGBA8888` format.
+
+## Memory Operations