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THEON-1
2025-10-20 17:03:59 +02:00
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# Memory Layout
- bank switching using 8-Bit register
- top 32K remain untouched
| start | end | use |
| :----- | :----- | :-- |
| 0x8000 | 0xDFFF | RAM |
| 0xE000 | 0xFFFF | ROM |
# Default (0X00)
| start | end | use |
| :----- | :----- | :-- |
| 0x0000 | 0x7FFF | I/O |
# Persistent Memory (0x01)
| start | end | use |
| :----- | :----- | :------ |
| 0x0000 | 0x7FFF | storage |
# Monochrome Video (0x0E, 0x0F)
| start | end | use |
| :----- | :----- | :--------------- |
| 0x0000 | 0x4AFF | VRAM |
| 0x6000 | 0x7FFF | character memory |
# Color Video
| start | end | use |
| :----- | :----- | :--------------- |
| 0x0000 | 0x4AFF | VRAM |
| 0x6000 | 0x7FFF | character memory |