fixup

Author: gnzlbg

src/x86/misc.rs

@@ -51,17 +51,15 @@ pub unsafe fn cpuid(eax: u32, ecx: u32) -> CpuidResult {
 #[inline(always)]
 pub unsafe fn pushfd() -> u32 {
     let eflags: u32;
-    asm!("pushfd"); // FIXME: this clobbers the stack
-    asm!("popl %eax" : "={eax}"(eflags) : : "eax" : "volatile");
+    asm!("pushfd; popl $0" : "=r"(eflags) : : : "volatile");
     eflags
 }
 
 /// Write EFLAGS.
 #[cfg(target_arch = "x86")]
 #[inline(always)]
 pub unsafe fn popfd(eflags: u32) {
-    asm!("pushl %eax" : : "{eax}"(eflags) : "flags" : "volatile");
-    asm!("popfd");
+    asm!("pushl $0; popfd" : : "r"(eflags) : "cc", "flags" : "volatile");
 }
 
 /// Does the host support the `cpuid` instruction?