程序计算数字列表的总和 [英] Program to calculate sum of list of numbers

问题描述

我尝试运行此代码，但不知道错误在哪里.

I tried to run this one but I don't know where the error is.

include "emu8086.inc"
ORG 100
.data
ARRAY DB 12H, 24H, 26H, 63H, 25H, 86H, 2FH, 33H, 10H, 35H
SUM DW 0
.code
START: MOV AX, @DATA
MOV DS, AX
MOV CL, 10
XOR DI, DI
MOV BX, OFFSET ARRAY
BACK: MOV AL, [BX+DI]
MOV AH, 00H
MOV SUM, AX
INC DI
DEC CL
JNZ BACK

                   ; print out the number in ax
CALL print_num      ; using procedure
RET
END  

推荐答案

ORG 100

如果要创建.COM程序，则此ORG指令的正确值为256，或者以十六进制表示时为100h.您忘记了 h 后缀！

If you're going to create a .COM program then the correct value for this ORG directive is 256, or 100h when expressed in hexadecimal. You forgot the h suffix!

.COM程序格式也非常简单，您不需要以下任何内容:.data，.code，MOV AX, @DATA和MOV DS, AX.但是，您应该像在下面的程序中一样，将代码放置在数据之前.

Also the .COM program format is simple enough that you don't need any of the following: .data, .code, MOV AX, @DATA, and MOV DS, AX. You should however place the code before the data as I did in below program.

MOV SUM, AX

任务是获得和".您需要在此行上使用add指令.

The task is to get the "sum". You need to use the add instruction on this line.

CALL print_num

在使用 emu8086.inc 中的 print_num 过程之前，您需要使用DEFINE_PRINT_NUM和DEFINE_PRINT_NUM_UNS进行声明.

Before you can use the print_num procedure from emu8086.inc, you need to declare it using DEFINE_PRINT_NUM and DEFINE_PRINT_NUM_UNS.

include 'emu8086.inc'
ORG 100h

; code
MOV CL, 10
XOR DI, DI
MOV BX, OFFSET ARRAY
BACK: MOV AL, [BX+DI]
MOV AH, 0
ADD SUM, AX
INC DI
DEC CL
JNZ BACK

CALL print_num
RET               ; End of the .COM program

; data
ARRAY DB 12h, 24h, 26h, 63h, 25h, 86h, 2Fh, 33h, 10h, 35h
SUM   DW 0

DEFINE_PRINT_NUM
DEFINE_PRINT_NUM_UNS
END

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