MASM

When i disable desktop composition i get flickering/blinking whenever i hover the mouse over the tabs. This only happens when desktop composition is disabled. I have tried to cancel WM_ERASEBKGND message but it doesn't fix the problem. What is the solution to this problem? This is the example that i tried to use for MASM tab control. http://www.dreamincode.net/forums/index.php?app=core&module=attach&section=attach&attach_id=28600 The bin is already compiled. EDIT: After enabling the WS_EX_COMPOSITED flag and added a listview control the frames of listview is not drawn. This only happens if

Debugging my code in VS2015, I get to the end of the program. The registers are as they should be, however, on call ExitProcess , or any variation of that, causes an "Access violation writing location 0x00000004." I am utilizing Irvine32.inc from Kip Irvine's book. I have tried using call DumpRegs , but that too throws the error. I have tried using other variations of call ExitProcess , such as exit and invoke ExitProcess,0 which did not work either, throwing the same error. Before, when I used the same format, the code worked fine. The only difference between this code and the last one is

So my program is supposed to take in user input (an integer between 10 and 200) and print out an array of random numbers and print out a sorted version of that array. However, this only works when I enter in 130 or less. I don't know what else I can do. It works but only half way. Is there any way to optimize this code? I have placed lines to help show which procedure I am having problems with. ****I ran debugger and I have left a comment where the program throws an exception error.***** TITLE Program5 (Program5.asm) INCLUDE Irvine32.inc ; (insert constant definitions here) MIN_INPUT = 10 MAX

I am completely lost with this. I need to program that calculates the following expression, using registers: varA = (varA + varB) − (varC + varD), where varA, varB, etc., are variables. Assign integer values to the EAX, EBX, ECX, and EDX registers for the aforementioned variables. (Meaning, you may hardcode the inputs) My Code: ; AddTwo.asm - adds two 32-bit integers. ; Chapter 3 example .386 .model flat,stdcall .stack 4096 ExitProcess proto,dwExitCode:dword .data varA dword 5 varB dword 3 varC dword 4 varD dword 1 .code main proc mov eax,varA add eax,varB mov ecx,varC add ecx,varD mov ebx

I'm having a problem adding to a product of a 16 bit multiplication. I want to multiply a year such as 2015, by 365 to do so I mov dx, 0 ; to clear the register mov ax, cx ; cx holds the year such as 2015 mov dx, 365 ; to use as multiplier mul dx ; multiply dx by ax into dx:ax After checking the registers, I am getting the correct solution but is there a way so that I can store this product into a single register. I want to add separate values to the product and so I would like to move this product into a single 32 bit register. Thanks for the help! The usual method is to use a 32 bit multiply

What is SIZEOF referring to? Is it referring to the size of the source (lengthOf * TYPE which is equal to number of elements in the array * the size of each element)? Also, can someone explain DUP(0),0? This is referring to Assembly x86 MASM. Thank you SIZEOF simply denotes the size of a type or structure . It refers to whatever you put after the SIZEOF keyword. SIZEOF element ; refers to a single element in the array. SIZEOF wholearray ; sizeof(element) * number_of_elements_in_array. Because it is resolved at compile-time it will only work if the size of an array is static. The syntax for DUP

I am trying to understand the logic of using the "mul" operand in the assembler(i am using Visual Studio Community and MASM). Why, after "mul ebx" the result is changing also edx, and not only the eax? "The result(of MUL) is stored in register AX, register pair DX:AX, or register pair EDX:EAX (depending on the operand size), with the high-order bits of the product contained in register AH, DX, or EDX". So is the location depending on the size of the operand?In which case? .586 .model flat,c .stack 100h .data .code doit proc ;EAX = 0062EEF0 EBX = 7EFDE000 ECX = 0029FD00 EDX = 00000000 mov eax,8