我一直在编写一个执行此操作的程序：
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.
我认为它在大多数情况下是正确的，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。无论如何，我唯一担心的是我在第17行有 CLA 指令。我这样做是为了将DF1设置为零，因为我们想在 1 中加载一个新值。这是正确的做法吗？
如果有人对我可能错过的错误或改进有任何其他批评或建议，请提供您的意见。
非常感谢任何和所有的帮助/输入。感谢。
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 -