Re: how to understand powerpc's BRx ORx

2010-09-12 Thread Baurzhan Ismagulov
On Fri, Sep 10, 2010 at 01:56:08PM +0800, hacklu wrote: > I didn't understand the address mask. > it's said that: BR[BA] is the base address,the OR[AM] is the address mask, ... > for instance, if my BR0[BA]=0111____0, OR0[AM]=__ > if I want to access the 0x7000 or the

Re: how to understand powerpc's BRx ORx

2010-09-10 Thread Kumar Gala
On Sep 10, 2010, at 12:56 AM, hacklu wrote: > I didn't understand the address mask. > it's said that: BR[BA] is the base address,the OR[AM] is the address mask, > "Provides masking for corresponding BRx bits. By masking address > bits independently, SDRAM devices of different size address range

how to understand powerpc's BRx ORx

2010-09-09 Thread hacklu
I didn't understand the address mask. it's said that: BR[BA] is the base address,the OR[AM] is the address mask, "Provides masking for corresponding BRx bits. By masking address bits independently, SDRAM devices of different size address ranges can be used. Clearing bits masks the correspondin