On 26/11/19 4:21 pm, Jordan Niethe wrote:
A future revision of the ISA will introduce prefixed instructions. A prefixed instruction is composed of a 4-byte prefix followed by a 4-byte suffix.All prefixes have the major opcode 1. A prefix will never be a valid word instruction. A suffix may be an existing word instruction or a new instruction. The new instruction formats are: * Eight-Byte Load/Store Instructions * Eight-Byte Register-to-Register Instructions * Modified Load/Store Instructions * Modified Register-to-Register Instructions This series enables prefixed instructions and extends the instruction emulation to support them. Then the places where prefixed instructions might need to be emulated are updated. A future series will add prefixed instruction support to guests running in KVM.
Snowpatch found sparse warnings: https://openpower.xyz/job/snowpatch/job/snowpatch-linux-sparse/14381//artifact/linux/report.txt (And a few minor checkpatch things too) -- Andrew Donnellan OzLabs, ADL Canberra a...@linux.ibm.com IBM Australia Limited
