In an assemblely code , I invalided all the TLB entries except for the entry we are executed in.
After that , I setuped a 1:1 TLB entry mapping of 1GB . At last , I wrote value 30 into the physical address 0x0400,0000 (also the virtual address because of my 1:1 mapping). However, it seemed failed to store the value '30' at address 0x400,0000. The following is my code: //code start // setup a 1:1 mapping of 1GB ... //store '30' into address 0x0400,0000 li r23, 30 lis r22, 0x400 ori r22,r22,0x0 stb r23,0(r22) //check if we successfully store value at 0x400,0000 lis r22, 0x400 ori r22,r22,0x0 lwz r23,0(r22) cmpw r23, 30 beq print_equal 1: b 1b print_equal: ... //code end I found that, print_equal was not called ,the whole code seemed to enter an infinite loop. Can anyone plz tell me why this happended? Thanks in advance. regards, wilbur _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
