From: google@holzapfel.biz   
      
   Louis Ohland schrieb am Dienstag, 24. Oktober 2023 um 14:28:33 UTC+2:   
   > How can you monitor accesses to the I/O window on the MCA side and the   
   > PCI side? If it is a SIMMple use of an I/O window, maybe we can   
   > turbo-diddle the conversion?   
      
   It's certainly doable.   
   One could probably build an address decoder for the 0x1CXX IO range out of   
   A[8-15] and M/IO# with some fast discrete 74xx logic or an FPGA to retrieve a   
   trigger signal whenever the card's IO range is addressed. I've never done that   
   so far.   
   Then one would need to monitor A[0-5] to capture the address inside the window   
   that is actually written to, plus the D[0-31] lines. Way too many channels for   
   my cheap analyzer.   
   Maybe we're lucky and the driver does 8-bit wide access only, then my tools   
   would be sufficient. But for an 32-bit OS driving a 32-bit card on a 32-bit   
   bus, I doubt it for now.   
   Maybe there's a smarter way.   
      
   Since all this "probably" happens during AIX driver initialization, I'm not   
   sure the kernel debugger would be of great help, if I understand it at all.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)