Memory layout: Difference between revisions
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* Vmem 0x80000000 is mapped to physmem 0x80000000, using a size loaded from a register. This is only done when: "endaddr = 0x7fffffff + size; if(endaddr >= 0x80000001){...}" | * Vmem 0x80000000 is mapped to physmem 0x80000000, using a size loaded from a register. This is only done when: "endaddr = 0x7fffffff + size; if(endaddr >= 0x80000001){...}" | ||
** The size is loaded from: "(u32 *0x70019050 & 0x3fff) << 20;" | ** The size is loaded from: "(u32 *0x70019050 & 0x3fff) << 20;" | ||
** The value written to the MMU-table descriptor is: "physaddr | val | 0x709;". val is 1<<52 when "size>>34" is non-zero, otherwise val=0. | ** The value written to the MMU-table descriptor is: "physaddr | val | 0x709;". val is 1<<52 when "size>>34" is non-zero and when "if((physaddr & 0x3c0000000) == 0)", otherwise val=0. | ||