Changeset 487c4f62 in rtems

Timestamp:

Jul 10, 1997, 7:09:16 PM (24 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

bf3a7a5a

Parents:

900a3ab1

Message:

Strip the trace bit from the SR register when dispatching a thread when
exiting from an ISR. This allows the trace bit to be set on a per task
basis and tracing to be limited to that task.

File:

• c/src/exec/score/cpu/m68k/cpu_asm.s (modified) (1 diff)

c/src/exec/score/cpu/m68k/cpu_asm.s

@@ -203 +203 @@
 #else
 
-        movew   a7@(16+SR_OFFSET),sr
-        jsr     SYM (_Thread_Dispatch)
-
+| filter out the trace bit to stop single step debugging breaking
+        movew   a7@(16+SR_OFFSET),d0
+        andw    #0x7FFF,d0
+        movew   d0,sr
+        jsr SYM (_Thread_Dispatch)
 #endif