noxos (docs): defined basic memory syscalls
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@ -36,8 +36,9 @@ The following calls should be implemented to some degree in noxos 1.0.
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## Memory
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| ID | Name | Description | Arg1 | Arg2 | Arg3 | Arg4 | Result | Status |
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|-----|------|-------------|------|------|------|------|--------|--------|
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| | | | | | | | | |
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|--------|-----------|-------------------------------------------------------------------------------------------------------------------------------------------|------|------|-------|------|--------|--------|
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| 0x0201 | nx_mmap | Maps _n_ 4KB pages to address _addr_. You can provide a bitmap of flags with the _flags_ argument. Which flags can be is described below. | addr | n | flags | | status | N/A |
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| 0x0202 | nx_munmap | Unmaps _n_ 4KB pages at address _addr_. | addr | n | | | status | N/A |
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## Processes
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| ID | Name | Description | Arg1 | Arg2 | Arg3 | Arg4 | Result | Status |
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@ -73,3 +74,11 @@ If another process calls them, they will just return without doing anything.
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|-----|---------------|--------------------------------------------|-----------|--------|
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| 0 | `permissions` | Who has what permission to access the file | uint16_t | N/A |
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| 1 | `size` | The files size in bytes | uint64_t | N/A |
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### Memory mapping flags
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| Bit | Name | Description |
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|-----|-----------|-------------------------------------------|
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| 0 | `write` | Enables write access to the mapped pages. |
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| 1 | `no_exec` | Prevents execution of the mapped pages. |
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