875 questions
1
vote
1
answer
38
views
Assembler step-mode interrupt handler
I am writing a step-mode interrupt handler in x86 architecture assembler and can't figure out how to find and print out mov byte ptr [bx] and bx registers.
So far i have this and in theory it should ...
- 13
2
votes
2
answers
58
views
How to loop to take an input and print an array of struct
I am quite confused on how to loop through an array of struct to take an input and store it, afterwards print all of the inputs from the struct.
I have this code in which I manually access the index ...
- 21
1
vote
1
answer
51
views
Resident Program structure and logic
Using 8086 microprocesor and DOSBox.
This resident program is done with those 2 commands:
TASM.exe program.asm &
TLINK.exe /t program.obj
Why is it not working when I run another .exe which has to ...
- 23
2
votes
1
answer
37
views
Procedure for printing numbers doesn't work
I'm working with TASM (in DosBOX emulator).
I'm a beginner and I don't know much yet.
Below is my full code. The problem is that it prints out not just expected output (25 + 10 = 35 and 25 - 10 = 15) ...
- 121
0
votes
0
answers
39
views
Rename of a file do not work in Assembler
I would like to rename a file, but there is no error and my assembler code do not rename the file from ww.txt to ww2.txt. Why?
I made different tests with the @data handler or mov the ax into the dx ...
- 1
1
vote
1
answer
44
views
How to read more that 10 characters in assembly?
So I wrote a program where it shows a position of numbers in a line for example if I write abc123 it prints 4 5 6. My problem is the program I have written doesn't read more than 10 characters and ...
- 13
0
votes
1
answer
72
views
Accepting String and Displaying String in 8086 Assembly Programming
.model small
.stack 100h
.data
address_req1 DB 10, 13, " Enter Shipping Address (Line 1): $"
address_req2 DB 10, 13, " (Line 2): $&...
- 21
1
vote
0
answers
75
views
Change window title in DOSBOX
I'm working in an ASM file in VS Code and I'm using some extensions that let me run it. I want to change the title when the window pops out.
The window name is DOSBOX 0,74-3, Cpu speed: .... instead ...
- 11
1
vote
1
answer
53
views
8086 Assembly Language 2 digit integer printing
Why is 42 not printed out?
The output is 0M instead of 42
TEST2 PROC
mov arrCount[0], 42
mov al, arrCount[0]
mov bx, 10
xor dx, dx
div bx
mov bl, al
mov bh, ah
...
- 21
1
vote
1
answer
53
views
Asssembly code printing symbols instead of numbers
I am using masm/tasm combo in vs code to run this following code to print numbers from 0-9 each in a new line.
.model small
.stack 100h
.data
.code
main proc
mov cx, 10 ; Loop counter (10 ...
- 23
2
votes
1
answer
73
views
Why does the code show only some white lines when you compiled it?
.MODEL SMALL
.STACK 100h
.DATA
COLUMNA DW ?
FILA DW ?
AVANCEH DW ?
AVANCEV DW ?
.CODE
DETENER_POR_TIEMPO PROC
MOV CX, 2000h
MOV DX, 2000h
MOV BX, 2000h
NOP
RET
DETENER_POR_TIEMPO ...
0
votes
1
answer
49
views
i get this error trying to jump to the end point [duplicate]
this the procedure for the esc press to exit
i am trying to jump from this proc to the exit to stop game whenever esc is pressed. but it says that escpressed is out of range
proc escpressed
mov ah,1h
...
0
votes
1
answer
33
views
Having trouble wih the mouse and outpot
I want to allow the user to click on his chosen submarine (which are already located:)) and then he clicks another time on the screen and the submarine appers there. For some reason no matter what i ...
1
vote
1
answer
51
views
binary division using TASM. Having hard time to get an accurate quotient when running it
This is the code, what do you think is something wrong on why it keeps producing incorrect quotient.
divide proc
; Set cursor position for PROMPT_1
mov ah, 02h
mov bh, 00h
mov dh, 0Bh ;...
- 11
1
vote
1
answer
43
views
Left Player's Paddle Keeps Moving After Key Release in TASM Assembly 8086 Pong Game
I'm working on an assembly language Pong game where the left player's paddle continues to move even after the key is released. The right player's paddle works fine, stopping when the key is not ...
- 97
1
vote
1
answer
64
views
Comparing 3 numbers (every number is three-digit) in TASM 8086
mov ah, 09h
lea dx, msg1
int 21h
; Read 1st number
mov ah, 01h
int 21h
mov bh, al
mov ah, 01h
int 21h
mov bl, al
mov ax,bx
and ax,0F0Fh
aad ;0X0X --> 00XX
mov bl,al ;1ST NUMBER
...
- 11
-1
votes
1
answer
45
views
How to shorten my code so it can meet command jumping length
I have this code that I'm trying to run but it tells me that it's too big of a jump.
At first it said "Relative jump out of range by 0015h bytes" when the code was this:
restart:
mov ax, ...
- 137
1
vote
1
answer
177
views
Struggling with TEA Algorithm in Assembly 8086 TASM
I’m attempting to implement the TEA algorithm in assembly language (8086 TASM). However, I’m encountering difficulties in two areas
String Input: I need assistance in implementing a mechanism to ...
- 97
0
votes
1
answer
20
views
there is always an warning message and also when I type in the right student number it always show access denied
.model small
.stack 64
.data
.data
username_buffer DB 20 DUP(?) ; Buffer to store the username
prompt_username DB "Enter your username: $"
msg_wrong_username DB "Wrong ...
0
votes
1
answer
24
views
The message (c:/ tasm/cin) apperas on screen when dont need to
start:
mov ax, @data
mov ds, ax
mov ax, 13h ;Graphic mode
int 10h ;Graphic mode
jmp image1
image2:
; Back to text mode
;mov ah, 0
;mov al, 2
...
0
votes
0
answers
42
views
How to Print Strings in an Array Assembly TASM
I have an array, fruitNames db "Apple$", "Mango$", "Orange$", "Kiwi$", "Watermelon$". I want to print every fruit name and display them using loops. ...
- 25
1
vote
1
answer
108
views
Having troubles with creating sprites in tasm 8086
I want to create 5 submarine for the player and 5 to the computer (10 total) by using the sprites method. When i checked the DosBox for mistakes i saw that all of my sprites lines have the same error ...
0
votes
1
answer
36
views
Snake game, How to make the snake to not move in opposite directions?
I'm making the snake game and now doing the part where if you move up you can't move directly down and so on...
I think I wrote the code well and it'll work but the jump points are too big and I tried ...
- 137
0
votes
0
answers
70
views
Do you have any idea on how to do calculator in 4 decimal places in Assembly Language Programming?
We are required to do a Calculator in Assembly Language Programming for our final output, but the problem is, it should be in 4 decimal places, and I could not accomplish that and I do not get the ...
- 11
1
vote
1
answer
66
views
Centering Text in Assembly Language Programming
Do you have any idea on how I can center the text or string in Assembly Language Programming?
Here's my source code:
.model small
.stack 100h
.data
;**********************************************
...
- 11
1
vote
0
answers
39
views
How can I fix my code in assembly language to enable me to input more than one digit and also to display the results accordingly?
.model small
.stack 1000h
.386
.data
prompt db "Welcome to the Main Menu", 13, 10, "1. Adding 2 numbers", 13, 10, "2. Odd and Even", 13, 10, "3. Positive and ...
- 11
0
votes
1
answer
103
views
Assembly 8086 TASM - TEA Algorithm - How to split 8-byte variable into two different variables of 4 bytes?
I want to write the TEA algorithm in assembly 8086 (TASM), and I am stuck in the first steps of splitting the plaintext (block) variable into 2 variables and the key into 4 variables (k1, k2, k3, k4).
...
- 97
1
vote
1
answer
61
views
Loading several pictures in TASM 8086
IDEAL
MODEL small
STACK 100h
p386
DATASEG
filename1 db 'picture1.bmp',0
filename2 db 'instructions.bmp',0
filehandle1 dw ?
filehandle2 dw ?
Header1 db 54 dup (0)
Header2 db 54 dup (0)
Palette1 db 256*...
0
votes
0
answers
36
views
I tried to write a procedure that checks the number of times a letter (within an array) occurs in another array
I tried to create a “love calculator” by checking the number of times the letters T, R, U, E, L, O, V, and E (both lowercase and uppercase) are found in two names. I wrote it in a procedure so I could ...
1
vote
0
answers
30
views
running an imf file using dosbox in parallel to a game
i am making a game for a school project in 16 bit 8086 assembly(with TASM and tlink) and wanted to add music to my game via playing an imf file, but tasm has trouble including the imf file.
so then i ...
3
votes
1
answer
65
views
how to get rid of TASM warning Operand size conflict
When compiling the following assembly source file TASM 4.1 (tasm file.asm):
ideal
p386n
model flat
stack 100h ; Dummy, to pacify TASM.
codeseg
start: cmp bx, after-start
after:
db 66h, 81h, 0fbh
dw ...
- 87k
0
votes
1
answer
42
views
Move string to end of file assembly
I need to move my message string to the end of program and the program need to output it correctly. How can I do that?
.model small
.stack 100h
.data
.code
main:
mov ax, @data
mov ds, ax
...
4
votes
2
answers
104
views
creating a 32-bit binary file with nonzero org with TASM+TLINK
I'm looking for the equivalent of the following assembly program with TASM, i.e. creating a 32-bit binary file with nonzero org. Here is how it works with NASM:
; $ nasm -O0 -f bin -o id.bin id.nasm
...
- 87k
0
votes
0
answers
63
views
I don't understand what's wrong with the code
I've copied a code from an assembly book and used an image I've converted from PNG to BMP, and called the file "doeshe.bmp" however, I don't see the picture. (I saved my picture in my TASM ...
0
votes
0
answers
39
views
Issue with Displaying Random Characters and Sound Playback Interruption in Assembly Code
IDEAL
MODEL small
stack 100h
DATASEG
freqs dw 165, 165, 196, 196, 220, 220, 196, 174, 165, 147, 147, 131, 131, 123, 123, 110, 110, 98, 98, 87, 87, 73, 73
times db 2, 2, 2, 2, 2, 2, 4, 2,...
- 19
1
vote
1
answer
211
views
Turbo Assembler (TASM) Undefined symbol error for extrn procedure
I am working on some Turbo Assembler which I was introduced to in my architecture class. The problem I am working on is using the extrn and include keywords to access a function/procedure from one ASM ...
- 31
0
votes
1
answer
90
views
How to do a sorting algorithm
My teacher gave us an assignment to write source code that sorts numbers.
The code is supposed to be made out of 2 procedures.
Procedure 1 (Minimum) receives the address of the first element in a list ...
- 137
1
vote
1
answer
105
views
Why does the program crash at the line that moves the address of a string to BX?
I have this RPN calculator program in TASM that calculates an expression in the string data_stack:
.model small
.stack 100h
.data
data_stack db '3 4 +', 0
top equ 0
result db 0
.code
...
- 73
0
votes
0
answers
63
views
Why does this work in Turbo Debugger but not regularly
.586
IDEAL
MODEL small
STACK 100h
jumps
p186
DATASEG
board dw 0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,0ff00h,...
- 11
1
vote
2
answers
136
views
how to use mov ah, 0 int 16h so that the snake moves continuously
I'm making the snake game and ran into a problem.
For now, I used int 21h, so it only moved when I pressed a key. Now I want it to move continuously so it isn't waiting for me to press a key but just ...
- 137
1
vote
1
answer
52
views
replacing values in an array and incrementing
I'm making the snake game and I ran into 2 problems.
I can't understand how to do the replacement.
When you move, in the DS you have the coordinates of the stars and each of them moves one
spot to ...
- 137
0
votes
0
answers
46
views
Two infinity loops at the same time [duplicate]
recently I have been coding a game a wanted to make a 1v1 version but after adding the two-player I realized that when I make a player move (Infinty loop) the other player stops moving to let the loop ...
- 19
0
votes
1
answer
48
views
Adding Power Capability to this Simple Calculator
I've a simple calculator as below. I want to Add a Power Capability So that the calculator could Calculate the Power of 2 numbers which values are taken from User Input .
Here Is the Code for 4 main ...
- 11
0
votes
1
answer
59
views
Collision detection in TASM asm
The algo im trying to implement is https://gbdev.io/gb-asm-tutorial/part3/collision.html
This is the code to get the Centers of Both the apple and the snake
shr bx,1
mov [CenterSquare_X], bx
...
- 19
1
vote
1
answer
74
views
Implementing a collision algorithm in TASM
The algorithm was made by GB-ASM:
You check the differences between 2 centers of 2 objects,and if the absolute value of the 2 differences are both smaller then the sam of their half widths, there is a ...
- 19
0
votes
1
answer
62
views
"Apple" not moving after colliding with it once
After first colliding with the apple it somtimes moves but after that u have no chance of getting it to move. this is checked using the check_collision function the compers both the x and y of the ...
- 19
1
vote
1
answer
66
views
Implementing a task deletion function in Assembly x86 tasm
I'm currently working on an Assembly x86 tasm language program for task management that allows adding and viewing tasks. However, I've been struggling to implement a function to delete a specific task....
- 23
0
votes
0
answers
254
views
Printing a text triangle pattern using loops in TASM
in this exercise it asks to do the following. It's supposed to be run in dosbox and save the code in tasm.
Activity:
Write an assembly language program that will display the following output. Use ...
0
votes
1
answer
118
views
Assembly Dosbox Calculator "Operand types do not match error"
hello guys I'm trying to kno if the test code given to me was correct or if I did not properly download my dosbox.
the error says "Operand types do not match"
This code was given to us by ...
1
vote
1
answer
164
views
How to Remove Leading Zeros from String? Convert int to fixed-width string with leading spaces instead of zeros
I'm very VERY new to Assembly language, and I would like to know how to remove the zeros in front of an integer string? This is the last thing I needed before completing it, and here is what our ...
- 11