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- /*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * 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
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