19 lines
989 B
Org Mode
19 lines
989 B
Org Mode
#+TITLE: CLOSOS: Single Address Space Architecture
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#+ID: closos-single-address-space
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#+DATE: 2026-03-22
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#+FILETAGS: :architecture:lisp:os:closos:
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* Concept
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In a Lisp Operating System (CLOSOS), all applications and the system kernel share one large, unified 64-bit address space.
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* Key Principles
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- *Removal of IPC:* Standard Unix-style Inter-Process Communication (pipes, sockets) is replaced by global pointer sharing. Applications communicate by passing pointers to objects directly.
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- *Unified Memory:* Eliminates the overhead of data serialization/deserialization between isolated process boundaries.
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- *Language-Based Security:* Protection is not enforced by hardware MMU boundaries but by the Lisp compiler and runtime (e.g., strong typing, bounds checking, no arbitrary pointer arithmetic).
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* Source
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:PROPERTIES:
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:ID: 9c69a9ab-1c96-490e-9a8e-fbeafacba30e
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:END:
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- [[attachment:strandh-lispos.pdf][Robert Strandh, "CLOSOS: Specification of a Lisp operating system" (2013)]]
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