📄 initio.asm
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.PUBLIC _InitIO
.PUBLIC _ShowRes
.PUBLIC _ClearWatchDog
.DEFINE Port_IOA_Attrib 0x7003
.DEFINE Port_IOA_Dir 0x7002
.DEFINE Port_IOA_Data 0x7000
.DEFINE Port_IOB_Attrib 0x7008
.DEFINE Port_IOB_Dir 0x7007
.DEFINE Port_IOB_Data 0x7005
.CODE
_ClearWatchDog: .PROC
push r1 to [SP]
r1 = 0x0001
[0x7012] = r1
pop r1 from [SP]
retf
.ENDP
_ShowRes: .PROC
push r1, r5 to [SP]
r5 = SP + 5
r4 = [r5+3]
[0x7005] = r4
pop r1, r5 from [SP]
retf
.ENDP
_InitIO: .PROC
r1=0xffff
[Port_IOB_Attrib] = r1 //B口设置为同向输出
[Port_IOB_Dir] = r1
//r1 = 0
[Port_IOB_Data] = r1 //B口置高电平
r1=0xffff
[Port_IOA_Attrib] = r1 //A口设置为同向输出
[Port_IOA_Dir] = r1
r1 = 0xffff
[Port_IOA_Data] = r1 //A口置高电平
retf
.ENDP
.PUBLIC _LED_RED_ON
_LED_RED_ON: .PROC
r1 = [Port_IOB_Data]
r1 = 0xfffe;
[Port_IOB_Data] = r1;
retf
.ENDP
.PUBLIC _LED_RED_OFF
_LED_RED_OFF: .PROC
r1 = [Port_IOB_Data]
r1 = 0xffff;
[Port_IOB_Data] = r1;
retf
.ENDP
.PUBLIC _LED_GRE_ON
_LED_GRE_ON: .PROC
r1 = [Port_IOB_Data]
r1 = 0xfffd;
[Port_IOB_Data] = r1;
retf
.ENDP
.PUBLIC _LED_GRE_OFF
_LED_GRE_OFF: .PROC
r1 = [Port_IOB_Data]
r1 = 0xffff;
[Port_IOB_Data] = r1;
retf
.ENDP
.END
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