On Monday, 6 June 2022 at 15:13:45 UTC, rempas wrote:
```
// mov rdx, <wordLen>
*cast(char*)(code + 14) = 0x48;
*cast(char*)(code + 15) = 0xC7;
*cast(char*)(code + 16) = 0xC2;
*cast(char*)(code + 17) = 12;
*cast(char*)(code + 18) = 0x00;
*cast(char*)(code + 19) = 0x00;
*cast(char*)(code + 20) = 0x00;
// mov rdx, <location where data are allocated>
*cast(char*)(code + 21) = 0x48;
*cast(char*)(code + 22) = 0xC7;
*cast(char*)(code + 23) = 0xC1;
*cast(long*)(code + 24) = cast(long)data;
*cast(char*)(code + 32) = 0x00;
```
This instruction is wrong. Note that you are writing twice to
RDX, but also that you are using `mov sign_extend imm32, reg64`
instead of `mov imm64, reg64` (`0x48 0xBA`?). Third, why append
an extra zero (`*cast(char*)(code + 32) = 0x00;`)? That must be a
bug too.
cheers,
Johan
