diff options
Diffstat (limited to 'nuttx/arch/arm/src/sam3u')
| -rw-r--r-- | nuttx/arch/arm/src/sam3u/sam3u_vectors.S | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/nuttx/arch/arm/src/sam3u/sam3u_vectors.S b/nuttx/arch/arm/src/sam3u/sam3u_vectors.S index baaeb54b9..f1d85b8b8 100644 --- a/nuttx/arch/arm/src/sam3u/sam3u_vectors.S +++ b/nuttx/arch/arm/src/sam3u/sam3u_vectors.S @@ -65,13 +65,6 @@ #define IDLE_STACK (_ebss+CONFIG_IDLETHREAD_STACKSIZE) #define HEAP_BASE (_ebss+CONFIG_IDLETHREAD_STACKSIZE) -/* The Cortex-M3 return from interrupt is unusual. We provide the following special - * address to the BX instruction. The particular value also forces a return to - * thread mode and covers state from the main stack point, the MSP (vs. the MSP). - */ - -#define EXC_RETURN 0xfffffff9 - /************************************************************************************************ * Global Symbols ************************************************************************************************/ @@ -406,7 +399,7 @@ sam3u_common: * actually occurs with interrupts still disabled). */ - ldr r14, =EXC_RETURN /* Load the special value */ + ldr r14, =EXC_RETURN_PRIVTHR /* Load the special value */ #endif /* Restore the interrupt state */ |