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Re: how to add new instruction

From: James E Wilson <wilson at specifixinc dot com>
To: apollo <apollow at gmail dot com>
Cc: gcc at gcc dot gnu dot org
Date: Fri, 14 Jan 2005 17:56:14 -0800
Subject: Re: how to add new instruction
References: <64b5897905011313327bfbe605@mail.gmail.com> <m3is60hf18.fsf@gossamer.airs.com> <64b58979050113202729dd8d62@mail.gmail.com>

apollo wrote:

i'm afraid so. i add a new rtl expression in rtl.def. and when i add a new define_insn section in i386.md, it said the instruction is undefined.

You need to be much more explicit about what happened here if you want help. You need to give the exact error you got, the exact command that was used to produce it, the exact change you made to the i386.md file, etc. -- Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com

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