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Re: gas generating bad code for i386
Date: Tue, 07 Mar 2000 14:39:39 -0500
From: Tom Riddle <ftr@oracom.com>
> Please do not send base64 messages to this mailing list. Send plain
> text.
What I sent was plain text, not sure what you received.
This is what I received for the message to which I am replying.
Please check your mailer configuration.
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> I'm surprised that the instruction `je 4' ever did what you want it to
> do. To me that is a jump to the absolute address 4.
>
> Use something like `je .+4' instead.
According to the gas info pages, Node: i386-Memory:
Absolute (as opposed to PC relative) call and jump operands must be
prefixed with `*'. If no `*' is specified, `as' always chooses PC
relative addressing for jump/call labels.
That has to do with the addressing mode, not the target of the jump.
I read `je 4' as a PC relative jump to the absolute address 4. The
current version of gas generates that, using a PC relative relocation.
Ian