passing 64k boundary

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Read-Only Author Johan Schuld Posted 6-Jan-2005 22:05 GMT Toolset C51	passing 64k boundary Johan Schuld Hi, I'm working on a project that will have an array that will cross the 64k boundary (and may even be larger then 64k. Of course, the problems comes when adding something like 100 when it points to fff0 It's easy to identify when the pointer is going to cross the boundary so I created a simple workaround UCHAR8 *pblk; UCHAR8 *oldpblk; ULONG_32 address; // let's say pblk is pointing to 0x1fff0; oldpblk = plbk; pblk = pblk + 100; if(pblk < oldpblk) { // passed a 64k boundary address = (ULONG_32)pblk; address = address + 0x10000; // add 64k pblk = (UCHAR8*)address; } and it works fine, but somehow I have the feeling that I'm trying to kill a fly with a sledgehammer :) Oh,. i'm using a DS5250 in contiguous (24bit) mode. and pblk is in "far" but isnt always.
Read-Only Author Keil Reinhard Posted 7-Jan-2005 09:04 GMT Toolset C51	RE: passing 64k boundary Keil Reinhard Take a look to: http://www.keil.com/support/docs/2269.htm http://www.keil.com/support/docs/2800.htm

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