Jump to specific line in x86 assembly language
You can just put a label at that line. Depending on your assembly language dialect, you might be be able to use a numeric local label, or you might need to use symbolic labels. A possible example follows. I have only NASM here to test, so I'm not really sure this example will map well to MASM, but you should get the idea:
start:
jmp .line3
mov ax, 0
.line3:
mov bx, 0
mov ah, 1
NASM uses a leading .
to identify local labels.
Anderson Green
I write source-to-source compilers in JavaScript using Peggyjs. I also write compilers in Prolog. For reference, I also have a list of source-to-source compilers on GitHub.
Updated on June 18, 2022Comments
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Anderson Green almost 2 years
In x86 assembly language, is it possible to specify a jump to a specific line number? Here, I'm trying to use the
jmp
instruction to the line number 3. (I don't yet know of a way to pass a label as a parameter to a function, so I'm trying to use a line number instead of a label in this case.).686p .model flat,stdcall .stack 2048 .data ExitProcess proto, exitcode:dword .code start: jmp 3; this produces the error shown below mov ax, 0 mov bx, 0 mov ah, 1 invoke ExitProcess, 0 end start
The code above produces the error
1>p4.asm(11): error A2076: jump destination must specify a label
.