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https://github.com/RT-Thread/rt-thread.git
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Added scons scripts.
Rename and updated libcpu/avr32/uc3/exception.x (with .irp macro) to exception_gcc.S (without .irp macro) for better compatibility. git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1613 bbd45198-f89e-11dd-88c7-29a3b14d5316
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@@ -193,12 +193,11 @@ _handle_Supervisor_Call:
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.balign 4
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.irp priority, 0, 1, 2, 3
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_int\priority:
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mov r12, \priority // Pass the int_level parameter to the _get_interrupt_handler function.
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_int0:
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mov r12, 0 // Pass the int_level parameter to the _get_interrupt_handler function.
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call _get_interrupt_handler
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cp.w r12, 0 // Get the pointer to the interrupt handler returned by the function.
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breq _spint\priority // If this was not a spurious interrupt (R12 != NULL), jump to the handler.
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breq _spint0 // If this was not a spurious interrupt (R12 != NULL), jump to the handler.
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call rt_interrupt_enter
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icall r12
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call rt_interrupt_leave
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@@ -206,15 +205,81 @@ _int\priority:
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lda.w r12, rt_interrupt_nest /* Is nested interrupt? */
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ld.w r11, r12[0]
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cp.w r11, 0
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brne _spint\priority
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brne _spint0
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lda.w r12, rt_thread_switch_interrupt_flag /* Is thread switch required? */
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ld.w r11, r12[0]
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cp.w r11, 1
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breq rt_hw_context_switch_interrupt_do
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_spint\priority:
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_spint0:
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csrf AVR32_SR_GM_OFFSET /* Enable global interrupt */
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rete // If this was a spurious interrupt (R12 == NULL), return from event handler.
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.endr
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_int1:
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mov r12, 1 // Pass the int_level parameter to the _get_interrupt_handler function.
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call _get_interrupt_handler
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cp.w r12, 0 // Get the pointer to the interrupt handler returned by the function.
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breq _spint1 // If this was not a spurious interrupt (R12 != NULL), jump to the handler.
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call rt_interrupt_enter
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icall r12
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call rt_interrupt_leave
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ssrf AVR32_SR_GM_OFFSET /* Disable global interrupt */
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lda.w r12, rt_interrupt_nest /* Is nested interrupt? */
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ld.w r11, r12[0]
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cp.w r11, 0
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brne _spint1
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lda.w r12, rt_thread_switch_interrupt_flag /* Is thread switch required? */
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ld.w r11, r12[0]
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cp.w r11, 1
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breq rt_hw_context_switch_interrupt_do
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_spint1:
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csrf AVR32_SR_GM_OFFSET /* Enable global interrupt */
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rete // If this was a spurious interrupt (R12 == NULL), return from event handler.
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_int2:
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mov r12, 2 // Pass the int_level parameter to the _get_interrupt_handler function.
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call _get_interrupt_handler
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cp.w r12, 0 // Get the pointer to the interrupt handler returned by the function.
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breq _spint2 // If this was not a spurious interrupt (R12 != NULL), jump to the handler.
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call rt_interrupt_enter
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icall r12
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call rt_interrupt_leave
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ssrf AVR32_SR_GM_OFFSET /* Disable global interrupt */
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lda.w r12, rt_interrupt_nest /* Is nested interrupt? */
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ld.w r11, r12[0]
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cp.w r11, 0
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brne _spint2
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lda.w r12, rt_thread_switch_interrupt_flag /* Is thread switch required? */
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ld.w r11, r12[0]
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cp.w r11, 1
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breq rt_hw_context_switch_interrupt_do
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_spint2:
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csrf AVR32_SR_GM_OFFSET /* Enable global interrupt */
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rete // If this was a spurious interrupt (R12 == NULL), return from event handler.
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_int3:
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mov r12, 3 // Pass the int_level parameter to the _get_interrupt_handler function.
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call _get_interrupt_handler
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cp.w r12, 0 // Get the pointer to the interrupt handler returned by the function.
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breq _spint3 // If this was not a spurious interrupt (R12 != NULL), jump to the handler.
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call rt_interrupt_enter
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icall r12
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call rt_interrupt_leave
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ssrf AVR32_SR_GM_OFFSET /* Disable global interrupt */
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lda.w r12, rt_interrupt_nest /* Is nested interrupt? */
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ld.w r11, r12[0]
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cp.w r11, 0
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brne _spint3
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lda.w r12, rt_thread_switch_interrupt_flag /* Is thread switch required? */
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ld.w r11, r12[0]
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cp.w r11, 1
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breq rt_hw_context_switch_interrupt_do
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_spint3:
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csrf AVR32_SR_GM_OFFSET /* Enable global interrupt */
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rete // If this was a spurious interrupt (R12 == NULL), return from event handler.
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rt_hw_context_switch_interrupt_do:
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mov r11, 0
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