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Switch 的代码
switch lamp.lnp
"Switch Lamp.obj"
TO "Switch Lamp"
switch lamp.hex
:0B000000209704C29080F9D29080F598
:00000001FF
switch lamp.lst
A51 MACRO ASSEMBLER SWITCH_LAMP 07/23/2006 17:21:24 PAGE 1
MACRO ASSEMBLER A51 V8.00
OBJECT MODULE PLACED IN Switch Lamp.OBJ
ASSEMB
switch lamp.opt
### uVision2 Project, (C) Keil Software
### Do not modify !
cExt (*.c)
aExt (*.s*; *.src; *.a*)
oExt (*.obj)
lExt (*.lib)
tExt (*.txt; *.h; *.inc)
pExt (*.plm)
CppX (*.cpp)
DaveTm {
switch lamp.asm
ORG 00H
START: JB P1.7,LIG ;如果开关闭合,则点亮LED
CLR P1.0 ;否则熄灭LED
SJMP START
LIG: SETB P1.0
SJMP START
END
multi switch.lnp
"Multi Switch.obj"
TO "Multi Switch"
multi switch.asm
ORG 00H
START: MOV A,P1 ;读取P1口数据
SWAP A ;交换A中高四位与低四位的位置
ORL A,#0F0H ;与0F0H相或
MOV P1,A ;将开关状态送LED显示
SJMP START
END