> By design, the TLB is turned off on any exception. It's a very bad decision. Please consider TLB machinery is a standard feature for any serious processors. PPC is an infamous example to automatically switch off VM functionality to process exception handler logic path. It's a kind of OS writer's nightmare ...
You should learn about MIPS EXL bit. Most modern processors do have similar 'guard bit" for exception. In MIPS case EXL has a special effect to make "VM magic" possible. I will explain that part when LM32 TLB design becomes more mature. -nisimura _______________________________________________ Devel mailing list Devel@lists.milkymist.org https://ssl.serverraum.org/lists/listinfo/devel
