22 Sep
2002
22 Sep
'02
2:35 p.m.
Hi Wayne
There are a number of holes in the IO map that you could use - The game adaptor port at 0x200-0x20f is one. Another space that is unlikely to be use is at 0x2e2-0x2e3 which is listed as "Data Acquisition Adaptor".
Two other options for you to consider.. 1) Use dummy jumps as in SLOW_IO_BY_JUMPING 2) use a nanosleep or esleep call, a 4uSec delay should be enough.
Regards, Paul.
On Sunday 22 Sep 2002 1:09 pm, Wayne Stallwood wrote:
Can any of you think of any other port I can get the kernel to write this to that would have the same effect of slowing down I/O but wouldn't be used by any other hardware ?