发表于：2007/8/20 22:45:00
#0楼
小弟初学Step7，最近需要做一个排序程序，就是将DB1中的12个数按照从小到大的顺序排序！~可是按如下写法，一运行cpu就红了~哪位大哥给指点一下啊~谢谢啦！
OPN "DB_Sort"
L 0
T MD 10
L MD 10
L 4
+D
T MD 14
COMP: L DBD [MD 10]
L DBD [MD 14]
<=R
JC MIN
L DBD [MD 10]
T MD 20
L DBD [MD 14]
T DBD [MD 10]
L MD 20
T DBD [MD 14]
JU END1
MIN: L 4
L MD 14
+D
T MD 14
L 44
L MD 14
>=D
JC COMP
L 4
L MD 10
+D
T MD 10
L 44
L MD 10
>=D
JC COMP
END: NOP 0
OPN "DB_Sort"
L 0
T MD 10
L MD 10
L 4
+D
T MD 14
COMP: L DBD [MD 10]
L DBD [MD 14]
<=R
JC MIN
L DBD [MD 10]
T MD 20
L DBD [MD 14]
T DBD [MD 10]
L MD 20
T DBD [MD 14]
JU END1
MIN: L 4
L MD 14
+D
T MD 14
L 44
L MD 14
>=D
JC COMP
L 4
L MD 10
+D
T MD 10
L 44
L MD 10
>=D
JC COMP
END: NOP 0
