From: "Sérgio Vale e Pace" Newsgroups: comp.os.msdos.djgpp Subject: bit tests in DJGPP assembler Date: Sun, 24 May 1998 13:40:47 -0300 Organization: All USENET -- http://www.Supernews.com Lines: 13 Message-ID: <35684D8F.BE3ED947@gold.com.br> NNTP-Posting-Host: 200.215.160.229 Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Precedence: bulk Hi Everybody, I have a 10 byte matrix and I want to test each bit in this matrix, all the 80. I'm trying to do that using the BT instruction in assembler, using a index, and a memory location and when I try the memory location first, (eg. bt (%eax), %di) I got a "instruction unknow" message from the compiler inverting the operands (eg. bt %di, (%%eax)), I got a Segment violation error. Somebody can help me? Thankx on advance Sérgio Vale e Pace