Changeset 5ede9706 in rtems

Timestamp:

08/01/00 19:38:52 (23 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

499d443

Parents:

47ca0d0a

Message:

If the _VBR is set to 0xFFFFFFFF, then assume the vector jump table is
in ROM.

Files:

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

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

@@ -100 +100 @@
   interrupt_table[ vector ] = new_handler;
 #else
+
+  /*
+   *  Install handler into RTEMS jump table and if VBR table is in
+   *  RAM, install the pointer to the appropriate jump table slot.
+   *  If the VBR table is in ROM, it is the BSP's responsibility to
+   *  load it appropriately to vector to the RTEMS jump table.
+   */
+
   _CPU_ISR_jump_table[vector].isr_handler = (unsigned32) new_handler;
-  interrupt_table[ vector ] = (proc_ptr) &_CPU_ISR_jump_table[vector];
+  if ( (unsigned32) interrupt_table != 0xFFFFFFFF )
+    interrupt_table[ vector ] = (proc_ptr) &_CPU_ISR_jump_table[vector];
 #endif /* M68K_HAS_VBR */
 }

cpukit/score/cpu/m68k/cpu.c

@@ -100 +100 @@
   interrupt_table[ vector ] = new_handler;
 #else
+
+  /*
+   *  Install handler into RTEMS jump table and if VBR table is in
+   *  RAM, install the pointer to the appropriate jump table slot.
+   *  If the VBR table is in ROM, it is the BSP's responsibility to
+   *  load it appropriately to vector to the RTEMS jump table.
+   */
+
   _CPU_ISR_jump_table[vector].isr_handler = (unsigned32) new_handler;
-  interrupt_table[ vector ] = (proc_ptr) &_CPU_ISR_jump_table[vector];
+  if ( (unsigned32) interrupt_table != 0xFFFFFFFF )
+    interrupt_table[ vector ] = (proc_ptr) &_CPU_ISR_jump_table[vector];
 #endif /* M68K_HAS_VBR */
 }