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// interrupt.h // Data structures to emulate low-level interrupt hardware. // // The hardware provides a routine (SetLevel) to enable or disable // interrupts. // // In order to emulate the hardware,

LED BIT P1.0 LEDBUF EQU 30H ORG 00H LJMP START ORG 03H LJMP INTERRUPT START: CLR LEDBUF CLR LED MOV TCON,#01H ;外部中断0下降沿触发 MOV IE,#81H ;打开外部中断允许位（EX0） ;及总中断允许位（

A51 MACRO ASSEMBLER EXTERNAL_INTERRUPT 07/29/2006 19:31:20 PAGE 1 MACRO ASSEMBLER A51 V8.00 OBJECT MODULE PLACED IN External Interrupt.OBJ

礦ision3 Build Log Project: E:\Program Files\Labcenter Electronics\Proteus 6 Demonstration(2)\44 External Interrupt\External Interrupt.uv2 Project File Date:

"External Interrupt.obj" TO "External Interrupt"

### uVision2 Project, (C) Keil Software ### Do not modify ! Target (Target 1), 0x0000 // Tools: 'MCS-51' Group (Source Group 1) File 1,2, 0x

LED BIT P1.0 LEDBUF EQU 30H ORG 00H LJMP START ORG 03H LJMP INTERRUPT START: CLR LEDBUF CLR LED MOV TCON,#01H ;外部中断0下降沿触发 MOV IE,#81H ;打开外部中断允许位（EX0） ;及总中断允许位（

A51 MACRO ASSEMBLER EXTERNAL_INTERRUPT 07/29/2006 19:31:20 PAGE 1 MACRO ASSEMBLER A51 V8.00 OBJECT MODULE PLACED IN External Interrupt.OBJ

礦ision3 Build Log Project: E:\Program Files\Labcenter Electronics\Proteus 6 Demonstration(2)\44 External Interrupt\External Interrupt.uv2 Project File Date:

"External Interrupt.obj" TO "External Interrupt"