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G4143 · 09-07-2009, 09:50 AM

So do we have any aspiring assembly programmers here...create an assembly program that will output a text string “this is the message to display\n” like this:

Quote:this is the message to display
his is the message to display
is is the message to display
s is the message to display
is the message to display
is the message to display
s the message to display
the message to display
the message to display
he message to display
e message to display
message to display
message to display
essage to display
ssage to display
sage to display
age to display
ge to display
e to display
to display
to display
o display
display
display
isplay
splay
play
lay
ay
y

Here's my solution in 64 bit Intel/AMD AT&T assembler...

Code:

.section .data

    mydata: .ascii "this is the message to display\n"

    .equ mylen, . - mydata

    mycount: .quad mylen

.section .text

printit:

        pushq    %rbp

        movq    %rsp, %rbp

        movq    $mydata, %rsi

tohere:

        movq    $1, %rax

        movq    $1, %rdi

        movq    mycount, %rdx

        syscall

        decq    mycount

        incq    %rsi

        cmpq    $1, mycount

        jle    endit

        jmp    tohere

endit:        movq    %rbp, %rsp

        popq    %rbp

        ret

.section .text

    .global _start

_start:

        call    printit

        movq    $60, %rax

        movq    $0, %rdi

        syscall

***drdebcol*** · 09-07-2009, 04:28 PM

I don't know much about assembler, but i can do this in several languages, just in a few lines of code.
Good task.