how to map physical memory

Hi,
Can you tell me how can I read/write a physical memory in QNX 4.24/4.25 ?
Thanks

Read /etc/readme/technotes/shmem.txt

“fxd” <xdfang@telemedicine.net.cn> wrote in message
news:8q6coc$adh$2@inn.qnx.com

Hi,
Can you tell me how can I read/write a physical memory in QNX 4.24/4.25 ?
Thanks