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