irvine32

I am trying nested while loop in assembly using masm. I am getting the "error A2070: invalid instruction operands" at line 15 i.e at the endw directive of internal while loop while running the following code. INCLUDE Irvine32.inc .data i byte 1 j byte 2 .code main PROC xor eax,eax .while i<5 mov j, 2 .while j<i mov al, j call writeDec call crlf inc j .endw inc i .endw exit main ENDP END main I cant find the reason for this. Can anyone help me? The error is here: .while j<i You cannot compare two memory contents directly. It is possible to compare a memory content with a register, e.g.: mov dl,

I'm currently learning assembly programming by following Kip Irvine's "Assembly Language for x86 Processor". In section 3.4.12, the author states: The .DATA? directive declares uninitialized data. When defining a large block of uninitialized data, the .DATA? directive reduces the size of a compiled program. For example, the following code is declared efficiently: .data smallArray DWORD 10 DUP(0) ; 40 bytes .data? bigArray DWORD 5000 DUP(?) ; 20,000 bytes, not initialized The following code, on the other hand, produces a compiled program 20,000 bytes larger: .data smallArray DWORD 10 DUP(0) ;

the point of the following program is to print out the letter "c" with the combination of every background and foreground color. In the library I'm using the colors are defined 0-15 and with the following code: mov eax,FOREGROUND + (BACKGROUND * 16) call SetTextColor Here is my code: INCLUDE Irvine32.inc .data character BYTE "c" count DWORD ? background DWORD 0 .code main PROC call Clrscr mov ecx, 15 ; our main counter 0-15 colors L1: mov count, ecx ; store our outer loop counter mov ecx, 15 ; set out inner loop counter L2: ; since our color is defined like so... mov eax,FOREGROUND +

I'm brand new to assembly language programming, and I would like my output to have separate lines so that it is easier to read, however, I wrote my code and had it working, but was then informed that I could not in fact use the Irvine procedure to make a new line. My text book only uses the Irvine "Crlf" and the code from other people who asked similar questions on this website completely broke my program so now I'm lost. One I attempted was: mov ah, 0Eh ;print new line sequence mov al, 0Dh int 10h mov al, 0Ah int 10h Anyways, here is my complete code with the Irvine function still. Can

I have been working on an assembly language project for a class and though I have finally been able to work through all problems in this code ( I believe ), I now can't seem to get the Register contents to display. Here is my code... include C:\Irvine\Irvine32.inc .data ;Variables are listed in following order VAR DATATYPE DIGITS[RADIX] with comments showing binary version of listed digits left DWORD 321 ;101000001b right DWORD 4247 ;1000010010111b total DWORD ? ;uninitialized diff DWORD ? ;uninitialized ;Define a string called message containing HELLO WORLD! message BYTE '"Hello world!"'

I am programming assembly language (x86) in MASM using Visual Studio 2013 Ultimate. I am trying to use an array to calculate a Fibonacci sequence for n elements using an array. In other words, I am trying to go to an array element, obtain the two elements before it, add those up, and store the result in another array. I am having trouble setting up the index registers to make this work. I have my program setup like this: TITLE fibonacci.asm INCLUDE Irvine32.inc .data fibInitial BYTE 0, 1, 2, 3, 4, 5, 6 fibComputed BYTE 5 DUP(0) .code main PROC MOVZX si, fibInitial MOVZX di, fibComputed MOV cl,