Assembly 在从变量加载值之前清除累加器
我一直在写一个程序来实现这一点:Assembly 在从变量加载值之前清除累加器,assembly,subtraction,mano-machine,Assembly,Subtraction,Mano Machine,我一直在写一个程序来实现这一点: Suppose we have the following program: DF1 = A - B SUM = DF1 + C DF1 = 1 SUM = SUM + DF1 + C Write a (Mano) assembly program that does what the pseudo-code program does. Assume that each variable is translated to a labelled
Suppose we have the following program:
DF1 = A - B
SUM = DF1 + C
DF1 = 1
SUM = SUM + DF1 + C
Write a (Mano) assembly program that does what the pseudo-code program does.
Assume that each variable is translated to a labelled memory address.
我相信这在很大程度上是正确的,但不幸的是,没有一个非常可靠的mano汇编编译器来测试我的代码。不管怎样,我唯一关心的是第17行的CLA指令在哪里。我这样做是为了将DF1设置为零,因为我们想在其中加载一个新的值1。这是正确的做法吗
如果有人对我可能遗漏的错误或改进提出任何其他批评或建议,请提供您的意见
非常感谢所有帮助/意见。谢谢
ORG 100 /Program loaded into address 100 (hex)
CLA /Clear accumulator....DF1 = 0
STA DF1 /Save DF1
LDA DF1 /Load current DF1
LDA B /Load B to accumulator
CMA /Create 2's complement
INC
ADD A /Subtract B from A
STA DF1 /Save DFI
LDA SUM /Load current SUM
ADD DF1 /Add DF1 to SUM
ADD C /Add C to SUM
STA SUM /Save SUM
CLA /Clear accumulator....DF1 = 0
LDA DF1 /Load current DF1
ADD 1 /Add 1 to DF1
STA DF1 /Save DF1
ADD SUM /Add SUM to DF1
ADD C /Add C to DF1
STA SUM /Save SUM
DF1 -
SUM -
A -
B -
C -
请不要在你的问题中使用链接…我只是在帖子中添加了代码,而不是在链接中。其中一个链接不是两个。。。