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我想创建一个程序,它使用ADD.B,ADD.W和ADD.L将两个十六进制值相加在一起,并查看它们之间的区别。我是汇编程序设计新手,所以我似乎无法完全理解它。没有错误,但是当我运行该程序时,不显示任何结果。在寄存器D3中似乎也没有任何值。谁能告诉我我做错了什么?非常感谢您的帮助。用汇编语言(EASy68K)添加两个十六进制值
START ORG $1000 Program starts at loc $1000
MOVE $374D1FC4,D2 [D0] <- $374D1FC4
MOVE $F22C4663,D3 [D1] <- $F22C4663
ADD.B D2,D3 [D1] <- [D0] + [D1]
* ADD.W D2,D3 [D1] <- [D0] + [D1]
* ADD.L D2,D3 [D1] <- [D0] + [D1]
MOVE D3,R
* The following three instructions will display [R] to Output Window
* Task number 3 of trap #15 is to display D1.L as a signed decimal
MOVE R,D1 [D1] <- R
EXT.L D1 Extend sign bit to presreve the sign
MOVE #3,D0 Assign task number to [D0]
TRAP #15 Ask "OS" to perform the task
STOP #$2700 Stop execution
* Data section
R DS.W 1 int R;
END START
也必须将其更改为MOVE.L,但现在可以使用。谢谢。 – Brett