Changeset 97 for trunk/hal/x86_64/core

Timestamp:

Jun 29, 2017, 1:53:30 PM (7 years ago)

Author:

max@…

Message:

(forgot this one in my previous commit)

File:

• trunk/hal/x86_64/core/hal_cpu.S (modified) (3 diffs)

trunk/hal/x86_64/core/hal_cpu.S

@@ -27 +27 @@
         lgdt    (%rdi)
         /* Reload the prefetch queue */
-    jmp 1f
-    nop
+        jmp     1f
+        nop
 1:      /* Reload stale selectors */
         movl    $GDT_FIXED_SEL(GDT_KDATA_SEL, SEL_KPL),%eax
@@ -57 +57 @@
 
 ASM_ENTRY(rdtsc)
-        xorq    %rax,%rax
+        xorq    %rax,%rax
         rdtsc
         shlq    $32,%rdx
@@ -105 +105 @@
 
 ASM_ENTRY(atomic_add_32)
+        movl    %esi,%eax
         lock
-        addl    %esi,(%rdi)
+        xaddl   %eax,(%rdi)
+        /* %eax now contains the old value */
         ret