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changed memory layout, ram needs to be where the stack will be

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THEON-1
2025-10-23 22:15:02 +02:00
parent ff042a6a6d
commit c37d0a68ad
2 changed files with 15 additions and 12 deletions
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26
notes/memory-layout.md
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@@ -4,28 +4,30 @@
| start | end | use |
| :----- | :----- | :---------------------- |
| 0x8000 | 0x8000 | bank switching register |
| 0x8001 | 0xDFFF | RAM |
| 0x0000 | 0x5FFE | RAM |
| 0x5FFF | 0x5FFF | bank switching register |
| 0x6000 | 0xDFFF | --- to be mapped --- |
| 0xE000 | 0xFFFF | ROM |
# Default (0X00)
| start | end | use |
| :----- | :----- | :-- |
| 0x0000 | 0x7FFF | I/O |
| 0x6000 | 0xDFFF | I/O |
# [Persistent Memory](./persistent-memory.md) (0x01)
| start | end | use |
| :----- | :----- | :------ |
| 0x0000 | 0x7FFF | storage |
| 0x6000 | 0xDFFF | storage |
# [Monochrome Video](./monochrome-video.md) (0x0E, 0x0F)
| start | end | use |
| :----- | :----- | :--------------- |
| 0x0000 | 0x4AFF | VRAM |
| 0x6000 | 0x7FFF | character memory |
| start | end | use |
| :----- | :----- | :---------------- |
| 0x6000 | 0xAAFF | VRAM |
| 0xC000 | 0xDFFF | auxilliary memory |
# [Color Video](./color-video.md) (0x10-0x19)
| start | end | use | bank |
| :----- | :----- | :--- | :-------- |
| 0x0000 | 0x7FFF | VRAM | 0x10-0x18 |
| 0x0000 | 0x3FFF | VRAM | 0x19 |
| start | end | use | bank |
| :----- | :----- | :---------------- | :-------- |
| 0x6000 | 0xDFFF | VRAM | 0x10-0x18 |
| 0x6000 | 0x9FFF | VRAM | 0x19 |
| 0xA000 | 0xDFFF | auxilliary memory | 0x19 |