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diff --git a/CMP/Activation blocks, Static links, Traductions et Linéarisation.md b/CMP/Activation blocks, Static links, Traductions et Linéarisation.md new file mode 100644 index 0000000..8c8bb39 --- /dev/null +++ b/CMP/Activation blocks, Static links, Traductions et Linéarisation.md @@ -0,0 +1,48 @@ +# Blocs d'activation +## Memory Hierarchy + +| Type | Desc | +| ------------ | ----------------------------------- | +| Registers | Small memory units built on the CPU | +| L1 | Last main memory access results | +| L2 | MB | +| Memory (RAM) | RAM | +| Storage | Disks | + +## Register overflow +**Memory allocation must be dynamic** +### Dynamic memory allocation +- *Global* +- *Automatic* +- *Heap*: + - User controlled + - Garbage collected +## `spim` Memory model +![[Pasted image 20250513142247.png]] + +## Stack management +Function calls: stack process +Or: Call Tree dfs + +## Activation blocks contents +- arguments : incoming +- local variables : user automatic variables +- return address : where to return +- saved registers : caller's environment to restore +- temp : compiler automatic variables, spills +- static links : when needed +Layout suggested by the constructor + +## Frame & stack pointer +Frame : debut de bloc +Stack : fin de bloc + +# Static links +A mechanism : +- Computed at compile time +- that produces code +- that will be used at runtime +$\rightarrow$ Sert à remonter au premier lien avant les appels recursifs pour chopper des variables + +# Translating expressions +How to translate the expression $\alpha < \beta$ in HIR?
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