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yield:
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yield:
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	mrs	r1, cpsr
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	mrs	r1, cpsr
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	msr	cpsr_c, #0xdf
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	msr	cpsr_c, #0xdf
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	ldr	r0, =current_thread
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	ldr	r0, =current_thread
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	ldr	r0, [r0]
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	ldr	r0, [r0]
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	stmia	r0!, {r0-r14}
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	stmia	r0, {r0-r14}
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	str	lr, [r0], #4
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	str	lr, [r0,#0x3c]
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	str	r1, [r0]
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	str	r1, [r0,#0x40]
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	msr	cpsr_c, #0xd2
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	msr	cpsr_c, #0xd2
- 
 
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	mov	r4, r0
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	bl	scheduler_pause_accounting
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	bl	scheduler_pause_accounting
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	adr	lr, resume_thread
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	adr	lr, resume_thread
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	mov	r0, #-1
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	mov	r0, #0
- 
 
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	mov	r1, r4
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	b	scheduler_switch
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	b	scheduler_switch
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.size yield, .-yield
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.size yield, .-yield
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.global syscall_handler
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.global syscall_handler
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.type syscall_handler, %function
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.type syscall_handler, %function
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	mov	r1, lr
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	mov	r1, lr
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	msr	cpsr_c, #0xd2
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	msr	cpsr_c, #0xd2
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	stmia	r5, {r0-r4}
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	stmia	r5, {r0-r4}
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	bl	scheduler_pause_accounting
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	bl	scheduler_pause_accounting
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	adr	lr, resume_thread
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	adr	lr, resume_thread
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	mov	r0, #-1
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	mov	r0, #0
- 
 
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	mov	r1, #0
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	b	scheduler_switch
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	b	scheduler_switch
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.size syscall_handler, .-syscall_handler
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.size syscall_handler, .-syscall_handler
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.global irq_handler
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.global irq_handler
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.type irq_handler, %function
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.type irq_handler, %function