Paged memory model #489
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Paged memory model #489
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This was referenced May 25, 2023
SilentCicero
reviewed
Jun 1, 2023
| Every time the VM runs, a single monolithic memory of size `VM_MAX_RAM` bytes is allocated, indexed by individual byte. A stack and heap memory model is used, allowing for dynamic memory allocation in higher-level languages. The stack begins at `0` and grows upward. The heap begins at `VM_MAX_RAM - 1` and grows downward. | ||
| The VM has `VM_MAX_RAM` bytes of ram, indexed by individual byte. A stack and heap memory model is used, allowing for dynamic memory allocation in higher-level languages. The stack begins at `0` and grows upward. The heap begins at `VM_MAX_RAM - 1` and grows downward. Unused memory is initialized to zero. | ||
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| Memory is gas-metered by usage. It's allocated in 16 KiB pages, which are transparently creted when either stack or heap grows beyond the current page. Both stack and heap are contiguous, and pages for those are allocated separately. The stack and heap are not allowed to overlap, but it's possible for them to share the last available page of memory. |
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@Dentosal Fix "creted" typo.
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This is likely not going to happen |
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TODO: