ASM: Convert DWORD to string in Assembly using MSVCRT _ultoa

This post shows how to convert unsigned int (DWORD) to string using MSVCRT function _ultoa.



Pre-requisite:

• Install MASM

To assemble:

\masm32\bin\ml /c /Zd /coff int2string3.asm

To link:

\masm32\bin\Link /SUBSYSTEM:CONSOLE int2string3.obj

Keywords: Assembly, Win32

ASM: Convert int to string in Assembly part 2

This post shows how to convert int (DWORD) to string using modified version of dwtoa(dwtoa2) from MASM library. Older post can be found here.



Pre-requisite:

• Install MASM

To assemble:

\masm32\bin\ml /c /Zd /coff int2string2.asm

To link:

\masm32\bin\Link /SUBSYSTEM:CONSOLE int2string2.obj

ASM: Convert int to string in Assembly

This post shows how to convert int (DWORD) to string using MASM library dwtoa. There seems to be a bug in dwtoa as it can only handle 2147483647 instead of 4294967295 which is the maximum size of DWORD (32-bit). The code for dwtoa checks for a negative number which is not needed for DWORD. Note that DWORD is defined as 32-bit unsigned.



Pre-requisite:

• Install MASM

To assemble:

\masm32\bin\ml /c /Zd /coff int2string.asm

To link:

\masm32\bin\Link /SUBSYSTEM:CONSOLE int2string.obj

ASM: Basic Windows application in Assembly

This post shows how to create Windows application using Assembly.



Pre-requisite:

• Install MASM

To assemble:

\masm32\bin\ml /c /Zd /coff basicwindows.asm

To link:

\masm32\bin\Link /SUBSYSTEM:WINDOWS basicwindows.obj

Reference(s):
This is shamelessly using contents from Windows Assembly Programming Tutorial  by JEFF HUANG (huang6@uiuc.edu)

ASM: Basic usage of assembly instructions

This program shows usage of basic assembly instructions add, cmp, dec, jnz, jz, mov, mul, pop, push, xor



Pre-requisite:

• Install MASM

To assemble:

\masm32\bin\ml /c /Zd /coff basicinstructions.asm

To link:

\masm32\bin\Link /SUBSYSTEM:CONSOLE basicinstructions.obj

Reference(s):
This is shamelessly using contents from Windows Assembly Programming Tutorial  by JEFF HUANG (huang6@uiuc.edu)

ASM: Hello world using MessageBox in Windows assembly

MessageBox Hello World in Windows assembly using MASM


Pre-requisite:

• Install MASM

To assemble:

\masm32\bin\ml /c /Zd /coff hellow.asm

To link:

\masm32\bin\Link /SUBSYSTEM:WINDOWS hellow.obj

Reference(s):
This is shamelessly using contents from Windows Assembly Programming Tutorial  by JEFF HUANG (huang6@uiuc.edu)
x86 Disassembly - link

ASM: Hello world in Windows assembly

Hello world in Windows assembly using MASM



Pre-requisite:

• Install MASM

To assemble:

\masm32\bin\ml /c /Zd /coff hello.asm

To link:

\masm32\bin\Link /SUBSYSTEM:CONSOLE hello.obj

Reference(s):
This is shamelessly using contents from Windows Assembly Programming Tutorial  by JEFF HUANG (huang6@uiuc.edu)
x86 Disassembly - link