24 lines
858 B
Markdown
24 lines
858 B
Markdown
---
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layout: page
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title: PDP-11 Boot Code
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permalink: /apps/pdp11/boot/
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---
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PDP-11 Boot Code
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----------------
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Boot code can be added to machines by including a `<ram>` component in the machine XML configuration file
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with the *file* attribute set to the filename of the image, along with optional *load* and *exec* addresses; eg:
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```xml
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<ram id="ram" addr="0x0000" size="0x4000" file="/apps/pdp11/boot/bootstrap/BOOTSTRAP-16KB.json" load="0x3FE4" exec="0x3FE4"/>
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```
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If no *load* address is specified, the `<ram>` component relies on the "load" property of the JSON-encoded RAM image;
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otherwise, the starting RAM address is used. If no *exec* address is specified, the CPU will begin execution at its usual
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reset address.
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The project currently contains the following PDP-11 RAM images:
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* [PDP-11 Boot Test](test/)
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* [PDP-11 Bootstrap Loader](bootstrap/)
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