diff options
Diffstat (limited to 'arch/x86_64/src/kernel/cpu/ss.cpp')
| -rw-r--r-- | arch/x86_64/src/kernel/cpu/ss.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86_64/src/kernel/cpu/ss.cpp b/arch/x86_64/src/kernel/cpu/ss.cpp index 9c8dd61..1f28e7f 100644 --- a/arch/x86_64/src/kernel/cpu/ss.cpp +++ b/arch/x86_64/src/kernel/cpu/ss.cpp @@ -19,15 +19,15 @@ namespace teachos::arch::kernel::cpu auto read_ss() -> uint16_t { - uint16_t ss; - asm volatile("mov %%ss, %0" : "=r"(ss)); - return ss; + uint16_t segment_selector; + asm volatile("mov %%ss, %[output]" : [output] "=r"(segment_selector)); + return segment_selector; } auto write_ss(segment_selector selector) -> void { uint16_t ss = selector.to_uint16(); - asm volatile("mov %0, %%ss" ::"r"(ss)); + asm volatile("mov %[input], %%ss" : /* no output from call */ : [input] "r"(ss)); } } // namespace teachos::arch::kernel::cpu
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