| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061 |
- /*
- * File : interrupt.s34
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2009, RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date Author Notes
- * 2010-04-20 fify the first version
- *
- * For : Renesas M16C
- * Toolchain : IAR's EW for M16C v3.401
- */
- .text
- .globl _rt_hw_context_switch_interrupt_do
- .type _rt_hw_context_switch_interrupt_do, #function
- _rt_hw_context_switch_interrupt_do:
- MOV.B #0, _rt_thread_switch_interrupt_flag
- MOV.W _rt_interrupt_from_thread, A0
- STC ISP, [A0]
-
- MOV.W _rt_interrupt_to_thread, A0
- LDC [A0], ISP
- POPM R0,R1,R2,R3,A0,A1,SB,FB ; Restore all processor registers from the new task's stack
- REIT
-
- .text
- .globl _rt_hw_timer_handler
- .type _rt_hw_timer_handler, #function
- _rt_hw_timer_handler:
- PUSHM R0,R1,R2,R3,A0,A1,SB,FB ; Save current task's registers
- jsr.a _rt_interrupt_enter
- jsr.a _rt_tick_increase
- jsr.a _rt_interrupt_leave
- CMP.B #1, _rt_thread_switch_interrupt_flag
- JEQ _rt_hw_context_switch_interrupt_do
-
- POPM R0,R1,R2,R3,A0,A1,SB,FB ; Restore current task's registers
- REIT ; Return from interrup
- .text
- .globl _rt_hw_uart0_receive_handler
- .type _rt_hw_uart0_receive_handler, #function
- _rt_hw_uart0_receive_handler:
- PUSHM R0,R1,R2,R3,A0,A1,SB,FB ; Save current task's registers
- jsr.a _rt_interrupt_enter
- jsr.a _u0rec_handler
- jsr.a _rt_interrupt_leave
- CMP.B #1, _rt_thread_switch_interrupt_flag
- JEQ _rt_hw_context_switch_interrupt_do
-
- POPM R0,R1,R2,R3,A0,A1,SB,FB ; Restore current task's registers
- REIT ; Return from interrup
|
