OpenBoot 3.x Command Reference Manual

Memory Mapping Commands

Table I-47 Memory Mapping Commands

Command 

Stack Diagram 

Description 

map?

( virt -- ) 

Display memory map information for the virtual address. 

memmap

( phys space size -- virt ) 

Map a region of physical addresses; return the allocated virtual address. Unmap with free-virtual.

obio

( -- space ) 

Specify the device address space for mapping. 

obmem

( -- space ) 

Specify the onboard memory address space for mapping. 

sbus

( -- space ) 

Specify the SBus address space for mapping.