To test if a number is odd or even, you check bit 0 of this number. Parity Flag shows if the number of bits set in the least significant byte is even or odd. PF bit 2 Parity flag — Set if the least-significant byte of the result contains an even number of 1 bits; cleared otherwise. Number 1 - odd number, b PF is cleared because there's only one bit set Number 2 - even number, b, but PF is cleared again!Contoh karangan ucapan takziah kematian
While Alexander Zhak's answer pointed out the flaws in your code checking the parity flag, the fastest way to check the parity of the number in al in a non-desctructive way is:. Understanding the carry flag is very useful for a whole variety of coding tricks. For instance, "Parity" is counting up the total number of bits in the number and we can use a similar trick for that:. Learn more.
Parity of a number Assembly Ask Question. Asked 5 years, 6 months ago. Active 3 years ago. Viewed 16k times. And sorry for my bad english. Active Oldest Votes. From documentation: PF bit 2 Parity flag — Set if the least-significant byte of the result contains an even number of 1 bits; cleared otherwise. Alexander Zhak Alexander Zhak 8, 4 4 gold badges 37 37 silver badges 64 64 bronze badges.
Or better, test al, 1 because there's no test r32, imm8 encoding, so it's shorter to only read the low byte of eax by reading al.
Writing partial registers is bad, reading them is fine. While Alexander Zhak's answer pointed out the flaws in your code checking the parity flag, the fastest way to check the parity of the number in al in a non-desctructive way is: test al,1 jz even odd Maximilian Schier Maximilian Schier 1, 11 11 silver badges 16 16 bronze badges. Mike Mike 2, 1 1 gold badge 9 9 silver badges 16 16 bronze badges. He just wants to know whether it's odd or even, not re-use it.
Your loop is also less efficient than it could be. First test ah,ah would be better than and.
8086 Assembly Program to Find Largest Number from Given Numbers
Here are the questions I have about this I am trying to learn procedures :. After ret statement, the program jumps to the previous statement, not the statement after procedure end. Since your procedure calls itself - i. Probably, that second call instruction should really be a jmp instruction, to return to the start of the procedure without recursing.Aesthetic discord emotes
Then, the ret will always return to the instruction after the original call. At that point, however, you have another problem. Since you have the procedure immediately after the call point, the ret instruction will cause execution to resume at the beginning of the procedure; when it reaches ret again your program will likely crash.
The code you have written after the end of the procedure should instead be moved so that it is after the call point i. Learn more.How to create purchasing condition records in
Finding factorial of a number in assembly Ask Question. Asked 3 years, 7 months ago. Active 9 months ago. Viewed 3k times. Following is my code : data segment num db 05h fact db 02h data ends code segment assume cs:code, ds:data start: mov dx,data mov ds,dx mov al,01h mov bl,num inc bl call prc prc proc imul fact inc fact cmp fact,bl jz endproc call prc endproc: mov fact,al ret prc endp mov ah,4ch int 21h code ends end start I am aware that the program isn't correct.
After ret statement, the program jumps to the previous statement, not the statement after procedure end And help is appreciated!
Sep Roland To 2seems lik the output is in hexadecimal. MargaretBloom I appreciate the help though I seriously do not have the time to go through any more books, I have 2 exams tomorrow and I need to study for the next one. Can you tell me what the problem is here for point 2 and 3? Do you know how can I rectify problem 3? MihirKandoi "problem 3" is not a problem.How to write the program un Assembly language to set a password for personal computers?
There isn't a reason to write a complete program to do this; in any assembly language just shift the value 1 bit to the left to double it. A program called assembler is used to convert an assembly language into machine language. The sum and average of a given number is just that number, so there is no need to write a program. The best choice is writing programs in Assembly language, then compile them with an Assembler program.
You can write programs much faster in high level programming language than you can is assembly language or machine language. Learning and mastering a high level programming language takes less time than learning and mestring machine language, assembly language. High level programming language protect you from accessing all parts of a computer, they protect you from writing a program that accidentally mess up the computer, cousing it to crash. Reading and modifying a program written in a high level programming language is much easier than reading and modifying an equivalent program written in assembly language or machine language.
Programs written in high level programming language can run on a variety of computers, if you write a program in high level programming language, you can theoretically part that program to run on a different computer. Each processor type has its own assembly language. Are you looking for something generic, or for a particular processor? That's what opcode 'NEG' does on some processors.
You will need:A computerThe computer language you will write inThe understanding of Armstrong NumbersThe number you want to findHow the number is presented to the program as the inputWhere the output of the program should goHow to put all together as a program. Assembly language is the lowest level of computer code, not including the actual machine language, which is directly processed by the hardware. It contains instructions specific to the hardware of your system.
When you write a program in a higher level language like C, it is first translated into assembly language before the computer can execute it. Because it is so low-level, assembly language is extremely difficult to code in. Asked By Curt Eichmann. Asked By Leland Grant. Asked By Veronica Wilkinson. Asked By Daija Kreiger. Asked By Danika Abbott. Asked By Consuelo Hauck. Asked By Roslyn Walter. Write a program in assembly language to find the cube of a given number?
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Ask Login. Computer Programming. Asked by Wiki User. Top Answer. Wiki User Answered Aim: - To write an assembly language program to find sum of cubes of given 'n' numbers. Related Questions. How do you write an assembly language program to find the sum of n numbers using array? Example of Password program code in assembly language?Problem — Write an assembly language program in microprocessor to find average of n eight bit numbers.
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Writing code in comment? Please use ide. Recommended Posts: program to determine squares of numbers in an array of n numbers program to determine cubes of numbers in an array of n numbers program to find sum of odd numbers in a given series program to find sum of Even numbers in a given series program to find GCD of two numbers and print the GCD program to subtract two bit numbers with or without borrow program to add two bit numbers with or without carry program to multiply two bit numbers program to determine largest number in an array of n numbers program to add two 8 bit BCD numbers program to add two 16 bit BCD numbers with carry program to multiply two 8 bit numbers program to subtract two 8 bit BCD numbers program to subtract two 16 bit BCD numbers program to generate AP series of n numbers program to generate G.
Approach — Combine the content of registers H and L, the resultant content can be used to indirectly point to memory location and that memory location is specified by M.
To find square of any number, keep on adding that number in accumulator A which initially contains 0 by that number of times whose square we need to find.
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Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below. Writing code in comment? Please use ide. Example — Assumption — Addresses of input data and out data are and respectively.
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8086 program to find the factorial of a number
The data are compared with those for the original Norton Intalox metal saddles, which differ from the new ones in the number of free tips (spikes) created by cutting the middle strips in the packing elements. The free tips increase the number of jumping droplets in the packing and thus may improve the mass transfer efficiency. The results provide information on how packing geometrical details can influence transport properties in absorption or distillation packed columns.
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