英文:
Is `p14` an alternative name to arm64 x14 general purpose register?
问题
从苹果的Objective-C中转储的源代码：
汇编代码：
似乎 p14 是 arm64 x14 通用寄存器的另一个名称。但我找不到任何文档。你能提供任何参考资料吗？
英文:
Source code dumped from apple objc:
Disassembled code:
It seems p14 is an alternative name to arm64 x14 general purpose register. But i could not find any documentation. Could you provide any reference?
答案1
得分: 2
这是对 x14 的宏别名。详见arm64-asm.h。
这不是标准约定，似乎是特定于 Objective-C 源代码的一些内容。看起来 p 代表“指针”，当构建类似于 ILP32 模型的 32 位指针时，p14 被定义为 w14。
英文:
It is a macro alias for x14. See arm64-asm.h.
This isn't a standard convention and seems to be something specific to the objc source. It looks like the p stands for "pointer", and that when building for something like an ILP32 model with 32-bit pointers, then p14 gets defined as w14 instead.
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