PCEXMEM(4) - Device Drivers Manual (luna88k)

PCEXMEM(4) - Device Drivers Manual (luna88k) # PCEXMEM(4) - Device Drivers Manual (luna88k) NAME # pcexmem, pcexio - NEC PC-9801 extension board slot SYNOPSIS # pcex0 at cbus0 DESCRIPTION # The file /dev/pcexmem is an mmap(2) capable interface to the memory area of the installed board at “NEC PC-9801 extension board slot” on LUNA-88K2. Byte offsets in this file are interpreted as relative memory addresses of the installed board. The range should be between 0x0 and 0xffffff. ...