Help: How to add two five byte hexadecimal numbers in assembly language .

The landlord cannot use the HLT command to pause caused by the execution of HLT, only the RESET (reset), NMI (unshielded interrupt request), and INTR (maskable external interrupt request) signals can make it exit the pause state. And your program doesn't return DOS can't do it.,Anyway, it's better not to use HLT but to use MOV AX,4C00H,INT 21H

data segment data1 db 0f8h,60h,0ach,74h,3bh,'$' data2 db 0c1h,36h,9eh,0d5h,20h,'$'data ends code segment assume cs:code,ds:datastart:

mov ax,data mov ds,ax mov cx,5 mov si,0 clc looper: mov al,data2 adc data1,al inc si dec cx jnz looper hlt mov dx,offset data1 mov ah,09h int 21hcode ends end start, please help me see this program, why is it not showing results?

In general, any binary n can be expressed as n=2j s; where j is a binary number, called a step code; If there are positive and negative signs, the positive and negative signs are called order symbols; s is a pure decimal, which is called a mantissa number; A number symbol, which refers to the symbol of the entire number of n.

Binary "00101000" can be converted directly to "28" in hexadecimal. Bytes are the basic storage units in the computer, according to the different length of the computer, the word has different digits, the word length of modern computers is generally 32 bits, that is, the number of bits of a word is 32.

A byte is an 8-bit unit of data, and a byte can represent 0 255 decimal data. For modern computers with a 32-bit word length, a word is equal to 4 bytes, and for early 16-bit computers, a word is equal to 2 bytes.

A two-digit hexadecimal number is a byte (8 bits).

The two-digit hexadecimal number from 00 to ff represents the decimal number from 0-255, which is the numeric form of 8 bits (1 byte).

A two-digit ten, bai, hexadecimal number can be stored with 1 byte.

A byte can hold the number of DAOs in the range of 0x00 to 0xff.

However, if a 2-bit hexadecimal constant is written in the program's sequencing rights, the C C++ language program will occupy 4 bytes by default. It is equivalent to 1 long int integer constant.

A two-digit hexadecimal number consists of 1 byte, e.g. 6f to a binary number is 0110 1111, there are 8 binary numbers, and one byte is exactly equal to 8 binary numbers...

A byte accounts for several binary, octal and hexadecimal bytes is an 8-bit binary number, such as 11111111, not necessarily all 1, may be 10100011, is an octa-bit 0 or 1 composed of 2 digits. What we usually see is generally in the decimal system.

Hexadecimal is equivalent to 4 bits of binary i.e. 1010, 0100, etc., the maximum is 4, 1111 is 15, that is, f, every 16 will be carried up.

Octal is equivalent to 2 bits of binary, such as 011, 101, etc. The maximum is 111, which is 7, and every 8 will be carried up.

That is, the base of 10 is the largest is 9, every 10 is going to be carried A truth, carefully experienced, I hope it will help you.

Shun one door has a hundred blessings, the word peace is worth a thousand gold, and Vientiane is updated.

8 binary bits; The latter two questions are problematic. Because 3 binary bits correspond to an octal value and 4 decimal bits correspond to a 16-base value, computers often use 8 or 16 decimal to represent values.

Answer: 8 binary numbers are one byte, and the GB code of a Chinese character takes up two bytes.

Here are the specific references.

Bits (bits or bits): Computer memory is made up of hundreds of millions of bits, each bit can hold a value of 0 or 1;

Byte: The unit of data stored in the computer, an 8-bit binary number (8 bits), is a very specific storage space;

Character: Generally speaking, it means "mark", just a symbol, such as the Arabic numerals we use every day, or the English alphabet, which are all characters;

Character set: The set of "characters" is called a "character set";

Encoding: A rule that specifies which byte or bytes each character is stored in is called encoding.

GB2312 GBK This is the national standard code of Hanzi, which is specially used to represent Chinese characters, which is a double-byte code, and the English letter is consistent with ISO8859-1 (compatible with ISO8859-1 code). The GBK encoding can be used to represent both traditional and simplified Chinese characters, while GB2312 can only represent simplified Chinese characters, and GBK is compatible with GB2312 encoding.

One hexadecimal character is equal to 4 binary bytes 16=2 4

An octal character is equal to 3 binary bytes 8=2 3

A byte is made up of 6 binary digits. () Wang argued.

a.Singing to the Tomb Skin.

b.Mistakes in the field.

Correct answer: B

A byte (8 bits) of a computer is not the same concept.

Rather, it refers to one digit in the hexadecimal system.

Therefore, "how big is the decimal number of a hexadecimal number of a byte" is 15 "How big is the decimal number of two bytes equivalent to the maximum value of the hexadecimal number" is 255 The reason is that if it refers to a byte of the computer, then it has nothing to do with hexadecimal, binary, octal, and hexadecimal of a byte are all the same answer.

If my analysis is incorrect, criticism is welcome.

You are two three-byte binary numbers, that is, 24-bit binary numbers, not three 16-bit binary numbers, just the addition of two numbers. Your program writes that each number is stored in the high position first, and then the low position. If the number is added to put 20h, first put the highest position, then put it for 21h, and put the lowest position for 22h.

But it is usually 20h to put the low position first, and then put the high position after 22h, so that the procedure will be changed. Also according to the way your program is written, modify it as follows, and the other lines do not need to be changed.

Please adopt it in time!