Noratrieb/riverdelta
1
0
Fork 0
mirror of https://github.com/Noratrieb/riverdelta.git synced 2026-01-14 16:35:03 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

list or whatever

Browse source
This commit is contained in:
nora 2023-12-16 14:13:45 +01:00
parent 179c4b3505
commit b2b80fe2ee
5 changed files with 59 additions and 33 deletions
Download patch file Download diff file Expand all files Collapse all files

18
std/rt/alloc.nil
View file

@ -7,23 +7,13 @@ global HEAD_PTR: I32 = 1024_I32;
// Allocate a new item. We do not deallocate anything yet.
// lol.
function allocateItem(objSize: I32, align: I32): I32 = (
function allocate(size: I32, align: I32): I32 = (
if align < 4_I32 then std.abort("invalid alignment");
// Include the refcount header.
let actualSize = 4_I32 + objSize;
// Let's see whether we can fit the refcount into the align bits.
// I happen to know that everything will always be at least 4 bytes aligned.
let alignedPtr = std.alignUp(HEAD_PTR, align);
let actualObjPtr = if (alignedPtr - HEAD_PTR) > align then (
alignedPtr - 4_I32
) else (
// Take up the next spot.
alignedPtr + align - 4_I32
);
let newHeadPtr = actualObjPtr + actualSize;
let newHeadPtr = alignedPtr + size;
if newHeadPtr > __memory_size() then (
// 16 pages, very arbitrary.
@ -36,10 +26,10 @@ function allocateItem(objSize: I32, align: I32): I32 = (
HEAD_PTR = newHeadPtr;
actualObjPtr
alignedPtr
);
function deallocateItem(ptr: I32, objSize: I32) = (
function deallocate(ptr: I32, size: I32) = (
std.println("uwu deawwocate :3");
);