surveillance fixes, index update, asm draft

content/blog/asm-cheatsheet.md

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+title = "Assembly cheatsheets"
+date = 2024-10-24
+description = "Some resources and cheatsheets about assembly"
+insert_anchor_links = "left"
+draft = true
+[taxonomies]
+tags = ["assembly"]
++++
+
+<style type="text/css">
+table code {
+	background-color: initial;
+}
+</style>
+
+* [x86 Linux syscalls](https://syscalls32.paolostivanin.com/)
+* [x86_64 Linux syscalls](https://syscalls64.paolostivanin.com/)
+* [Another website with Linux syscalls](https://syscall.sh/)
+* [x86 and x86_64 instruction reference](https://www.felixcloutier.com/x86/)
+
+## Conditional jump
+
+```asm
+cmp A, B
+jcc after
+; conditionally executed code, see the table below
+after:
+```
+
+| `Jcc` | code executed if | jump if |
+|--------|----------|----------|
+| `ja`   | `A <= B` | `A > B`  |
+| `jae`  | `A < B`  | `A >= B` |
+| `jb`   | `A >= B` | `A < B`  |
+| `jbe`  | `A > B`  | `A <= B` |
+| `je`   | `A == B` | `A != B` |
+| `jg`   | `A <= B` | `A > B`  |
+| `jge`  | `A < B`  | `A >= B` |
+| `jl`   | `A >= B` | `A < B`  |
+| `jle`  | `A > B`  | `A <= B` |
+| `jna`  | `A > B`  | `A <= B` |
+| `jnae` | `A >= B` | `A < B`  |
+| `jne`  | `A != B` | `A == B` |
+| `jnb`  | `A < B`  | `A >= B` |
+| `jnbe` | `A <= B` | `A > B`  |
+| `jng`  | `A > B`  | `A <= B` |
+| `jnge` | `A >= B` | `A < B`  |
+| `jnl`  | `A < B`  | `A >= B` |
+| `jnle` | `A <= B` | `A > B`  |
+| `jnz`  | `A == B` | `A != B` |
+| `jz`   | `A != B` | `A == B` |