arno/linux-insides
1
0
Fork 0
mirror of https://github.com/0xAX/linux-insides.git synced 2024-11-16 04:59:13 +00:00
Code Issues Releases Wiki Activity

inline assembly: fix result of summation

Browse Source
This commit is contained in:
Alexander Kuleshov 2018-03-15 00:07:27 +06:00 committed by proninyaroslav
parent c6ccf4eec6
commit 295b1a5128
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Theory/linux-theory-3.md
View File

@ -190,7 +190,7 @@ If we look at the assembly output:
400525: 48 01 d0 add %rdx,%rax
```
we will see that the `%rdx` register is overwritten with `0x64` or `100` and the result will be `115` instead of `15`. Now if we add the `%rdx` register to the list of `clobbered` registers:
we will see that the `%rdx` register is overwritten with `0x64` or `100` and the result will be `110` instead of `10`. Now if we add the `%rdx` register to the list of `clobbered` registers:
```C
__asm__("movq $100, %%rdx\t\n"