isr.asm

利用sunplus16位单片机实现USB接口的全套技术资料

// =========================================
// 文件名称：ISR.asm
// 功能描述：061的中断，调用F_USB_ISR
// 维护记录：modified by liuxue v1.0 2007-03-15
// =========================================

.PUBLIC _BREAK
.PUBLIC _FIQ
.PUBLIC _IRQ0
.PUBLIC _IRQ1
.PUBLIC _IRQ2
.PUBLIC _IRQ3
.PUBLIC _IRQ4
.PUBLIC _IRQ5
.PUBLIC _IRQ6
.PUBLIC _IRQ7

.INCLUDE spce061a.inc
.INCLUDE key.inc
.INCLUDE dvr.inc
.EXTERNAL _D12_USB_Isr
.TEXT

_BREAK:
	push r1, r4 to [SP]
	pop r1, r4 from [SP]
	reti

_FIQ:
	push r1,r5 to [sp]
	r1 = C_FIQ_TMA
	test r1,[P_INT_Ctrl]
	jnz ?L_FIQ_TimerA
	r1 = C_FIQ_TMB
	test r1,[P_INT_Ctrl]
	jnz ?L_FIQ_TimerB
?L_FIQ_PWM:
	r1 = C_FIQ_PWM
	[P_INT_Clear] = r1
	pop r1,r5 from [sp]
	reti
?L_FIQ_TimerA:
	[P_INT_Clear] = r1
	call F_FIQ_Service_SACM_DVR
	pop r1,r5 from [sp]
	reti
?L_FIQ_TimerB:
	[P_INT_Clear] = r1
	pop r1,r5 from [sp]
	reti

_IRQ0:
	push r1, r4 to [SP]
	pop r1, r4 from [SP]
	reti

_IRQ1:
	push r1, r4 to [SP]
	pop r1, r4 from [SP]
	reti

_IRQ2:
	push r1, r4 to [SP]
	pop r1, r4 from [SP]
	reti

_IRQ3:
	push r1, r5 to [SP]
	r1 = C_IRQ3_EXT1
	test r1, [P_INT_Ctrl]
	jnz ?L_IRQ3_EXT1
	r1 = C_IRQ3_EXT2
	test r1, [P_INT_Ctrl]
	jnz ?L_IRQ3_EXT2
?L_IRQ3_Key:
	r1 = C_IRQ3_KEY
	[P_INT_Clear] = r1
	jmp ?Exit
?L_IRQ3_EXT2:
	r1 = C_IRQ3_EXT2
	[P_INT_Clear] = r1
	jmp ?Exit
?L_IRQ3_EXT1:
	int off
	r1 = C_IRQ3_EXT1
	[P_INT_Clear] = r1
	r1 = 0x0001
	[P_Watchdog_Clear] = r1
	call _D12_USB_Isr
	int irq
?Exit:
	pop r1, r5 from [SP]
	reti
	
_IRQ4:
	push r1, r4 to [SP]
	pop r1, r4 from [SP]
	reti

_IRQ5:
	push r1, r4 to [SP]
	pop r1, r4 from [SP]
	reti

_IRQ6:
	push r1, r4 to [SP]
	r1 = C_IRQ6_TMB2
	test r1, [P_INT_Ctrl]
	jnz ?L_IRQ6_TMB2
	r1 = C_IRQ6_TMB1
	test r1, [P_INT_Ctrl]
	jnz ?L_IRQ6_TMB1
	jmp ?Exit
?L_IRQ6_TMB2:
	call F_Key_Scan				// 扫描键盘
	r1 = C_IRQ6_TMB2
	[P_INT_Clear] = r1
	jmp ?Exit
?L_IRQ6_TMB1:
	r1 = C_IRQ6_TMB1
	[P_INT_Clear] = r1
	jmp ?Exit
?Exit:
	pop r1, r4 from [SP]
	reti

_IRQ7:
	push r1, r4 to [SP]
	pop r1, r4 from [SP]
	reti