xenia/docs/cpu.md

CPU Documentation

Alloy

TODO

Memory Management

TODO

References

PowerPC

The processor in the 360 is a 64-bit PowerPC chip running with 32-bit memory addresses. This can make some of the documentation a little confusing as most of the PowerPC docs only have a 'you're in 32 or 64' style. The CPU is largely similar to the PPC part in the PS3, so Cell documents often line up for the core instructions. The 360 adds some additional AltiVec instructions, though, which are only documented in a few places (like the gcc source code, etc).

• Free60 Info
• Power ISA docs (aka 'PowerISA')
• PowerPC Programming Environments Manual (aka 'pem_64')
• PowerPC Vector PEM
• AltiVec PEM
• VMX128 Opcodes
• AltiVec Decoding

x64

• Intel Manuals ** Combined Intel Manuals
• Apple AltiVec/SSE Migration Guide