Changeset 8b2ee37c in rtems for c/src/exec/score/cpu/i386/cpu.h

Timestamp:

08/19/98 20:09:59 (25 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

26b5c77f

Parents:

7549e14

Message:

Patch from Eric Valette <valette@…>:

• Use the "hlt" instruction for the Idle thread,
• Optimise interrupt PATH leadding to thread wakeup,
• Preparation for Intel exception management that should come before the end of the week...

File:

• c/src/exec/score/cpu/i386/cpu.h (modified) (2 diffs)

c/src/exec/score/cpu/i386/cpu.h

@@ -65 +65 @@
 #define CPU_USE_DEFERRED_FP_SWITCH       TRUE
 
-#define CPU_PROVIDES_IDLE_THREAD_BODY    FALSE
+#define CPU_PROVIDES_IDLE_THREAD_BODY    YES
 #define CPU_STACK_GROWS_UP               FALSE
 #define CPU_STRUCTURE_ALIGNMENT
@@ -102 +102 @@
 } Context_Control_fp;
 
+
 /*
  *  The following structure defines the set of information saved
- *  on the current stack by RTEMS upon receipt of each interrupt.
+ *  on the current stack by RTEMS upon receipt of execptions.
+ *
+ * idtIndex is either the interrupt number or the trap/exception number.
+ * faultCode is the code pushed by the processor on some exceptions.
  */
 
 typedef struct {
-  unsigned32   TBD;   /* XXX Fix for this CPU */
-} CPU_Interrupt_frame;
+
+    unsigned32      edi,
+                    esi,
+                    ebp,
+                    esp0,
+                    ebx,
+                    edx,
+                    ecx,
+                    eax,
+                    idtIndex,
+                    faultCode,
+                    eip,
+                    cs,
+                    eflags;
+}CPU_Exception_frame;
+
+/*
+ *  The following structure defines the set of information saved
+ *  on the current stack by RTEMS upon receipt of each interrupt
+ *  that will lead to re-enter the kernel to signal the thread.
+ */
+
+typedef CPU_Exception_frame CPU_Interrupt_frame;
 
 /*