===== M2 Memory map. =====

PPC602 uses MMU. The following memory map is physical, not logical map

^Base address  ^Length  ^Function  |
|0x00010000  |   |BDA PCTL  |
|0x00020000  |   |BDA MCTL  |
|0x00030000  |   |BDA VDU  |
|0x00040000  |   |BDA TE  |
|0x00050000  |   |BDA CEL  |
|0x00060000  |   |BDA DSP  |
|0x00070000  |   |BDA CP  |
|0x00080000  |   |BDA MPEG  |
|0x03000000  |   |Bridgit  |
|0x04000000  |   |CDE  |
|0x10000000  |4 bytes  |WhoAmI  |
|0x20000000  |2 mbytes  |ROM  |
|0x40000000  |4-16 mbytes  |SDRAM  |
|0xfff00000  |   |Bridgit debug trap  |

Portfolio loads every program elf at virtual 0x40000000