Recent Posts

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1
Programming with NASM / Re: Learning Assembler
« Last post by Roddy MacPhee on May 25, 2024, 09:39:20 PM »
Maybe https://asmtutor.com ?
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Programming with NASM / Re: How many for loops are possible in nasm ?
« Last post by Roddy MacPhee on May 24, 2024, 05:14:21 PM »
Quote from: debs3759 on May 23, 2024, 11:15:34 AM
I would think that you can use as many loops as you want. It's down to the programmer to write appropriate code and algorithms.

Code: [Select]
    mov <register>,1
loop:
    inc <register>
    cmp <register> <limit>
    jne loop
Code: [Select]
    mov <register>,1
loop:
    add <register>,1
    cmp <register> <limit>
    jne loop

With 20+ registers and then some. Unlike what you thought they can't all be used at once( at least without complex additions) . Some have uses doing other things. You can also have a decreasing  version. Another factor is replacing jne with other conditional jumps ...
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Programming with NASM / Re: How many for loops are possible in nasm ?
« Last post by Roddy MacPhee on May 23, 2024, 04:05:30 PM »
Quote from: debs3759 on May 23, 2024, 04:02:33 PM
with no restrictions or limitations.
How do I print rdi to screen . I'm on android if that matters.
https://play.google.com/store/apps/details?id=com.rhmsoft.code

Found out how to print ascii characters using alt codes( yes I know I'm stupid). Now to either convert numbers to strings or use extern ...
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Programming with NASM / Re: How many for loops are possible in nasm ?
« Last post by debs3759 on May 23, 2024, 04:02:33 PM »
If the version of nasm you have is time limited, it's not an official version. nasm is 100% freeware with no restrictions or limitations.
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Programming with NASM / Re: How many for loops are possible in nasm ?
« Last post by Roddy MacPhee on May 23, 2024, 02:56:33 PM »
Wish I knew modulo and printing numerical values to screen. Then I could make a prime sieve ... nasm compiler the code editor app uses is 2.14.02 and it has time limits.

Example of my attempt:


Code: [Select]
section .data
hw db "hello world,",0
section .text
global _start
_start:
    mov rdi,1
loop:
    mov eax,4
    mov ebx,1
    lea ecx,[hw]
    lea edx,[rdi]
    int 80H
    inc rdi
    cmp rdi,13
    jne loop
    mov eax,1
    xor ebx,ebx
    int 80H
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Programming with NASM / Re: How many for loops are possible in nasm ?
« Last post by debs3759 on May 23, 2024, 11:15:34 AM »
I would think that you can use as many loops as you want. It's down to the programmer to write appropriate code and algorithms.
7
Programming with NASM / How many for loops are possible in nasm ?
« Last post by Roddy MacPhee on May 22, 2024, 11:41:08 PM »
I know of at least 40 different variants, but i'm wondering how many are useful (possible).
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Other Discussion / Re: sprintf_s plus printf
« Last post by alCoPaUL on May 15, 2024, 09:23:05 PM »
essential msvcrt.lib for win64asm...

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Example Code / sprintf_s plus printf
« Last post by alCoPaUL on May 15, 2024, 09:22:14 PM »
Code: [Select]
;r9 //      sprintf_s + printf
;r8 //      by alCoPaUL [GIMO]
;rdx //         5/15/2024
;rcx //    Brigada Ocho [b8] Productions
;call // rax
global m
extern printf
extern sprintf_s
section .text
m:sub rsp,28h
lea r8,x
lea rdx,i
lea rcx,b
call sprintf_s
mov r8, rax
lea rdx,b
lea rcx,i
call printf
add rsp,28h
ret
section .data
x:db 'Revelation 13'
......
.....
....

Full file attached with the msvcrt.lib for win64asm..

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Other Discussion / Re: sprintf_s plus printf
« Last post by alCoPaUL on May 15, 2024, 09:19:55 PM »
NASM Version

Code: [Select]
;r9 //      sprintf_s + printf
;r8 //      by alCoPaUL [GIMO]
;rdx //         5/15/2024
;rcx //    Brigada Ocho [b8] Productions
;call // rax
global m
extern printf
extern sprintf_s
section .text
m:sub rsp,28h
lea r8,x
lea rdx,i
lea rcx,b
call sprintf_s
mov r8, rax
lea rdx,b
lea rcx,i
call printf
add rsp,28h
ret
section .data
x:db 'Revelation 13'
....
....
....
full file attached..
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