From:	"Gary Slaughenhaupt" <gary DOT slaughenhaupt AT ia DOT nsc DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Newbie stuck.
Date:	Tue, 29 Aug 2000 16:24:20 -0600
Organization:	National Semiconductor, Santa Clara
Lines:	46
Message-ID:	<8ohd8o$rsp$1@voder.nsc.com>
NNTP-Posting-Host:	catalpa.ia.nsc.com
X-Trace:	voder.nsc.com 967587928 28569 147.5.204.236 (29 Aug 2000 22:25:28 GMT)
X-Complaints-To:	usenet AT voder DOT nsc DOT com
NNTP-Posting-Date:	29 Aug 2000 22:25:28 GMT
X-Priority:	3
X-MSMail-Priority:	Normal
X-Newsreader:	Microsoft Outlook Express 5.00.2615.200
X-MimeOLE:	Produced By Microsoft MimeOLE V5.00.2615.200
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

I am attempting to convert this function:
int ShowXpressRomInfo()
{
    unsigned char far * pBIOSTable = (unsigned char far *)0xF0000000L;
    unsigned char xpressStart[12]=
{'X','p','r','e','s','s','S','t','a','r','t',0};
    unsigned char xpressInfo[250];
    int x = 0;

    // Get BIOS Info Table
    do
    {
        if (_fmemcmp((unsigned char far *) &xpressStart,\
                     pBIOSTable,\
                    _fstrlen((unsigned char far *) &xpressStart))== 0)
        {
            pBIOSTable+=12;
            break;
        } else pBIOSTable++;
    } while (pBIOSTable <= (unsigned char far *) 0xF000FFF3L);

    I modified it to this:
int ShowXpressRomInfo()
{
    unsigned char * pBIOSTable = (unsigned char *)0xF0000000L;
    unsigned char xpressStart[12]=
{'X','p','r','e','s','s','S','t','a','r','t',0};
    unsigned char xpressInfo[250];
    int x = 0;

    // Get BIOS Info Table
    do
    {
        if (memcmp((unsigned char *) &xpressStart,\
                     pBIOSTable,\
                    strlen((unsigned char *) &xpressStart))== 0)
        {
            pBIOSTable+=12;
            break;
        } else pBIOSTable++;
    } while (pBIOSTable <= (unsigned char *) 0xF000FFF3L);

    But I get a segment violation when attempting to do the memcmp.
Any advice would be appreciated.

- Raw text -