x86: Add support for FLDENV & FNSTENV
Review Request #1917 - Created June 10, 2013 and submitted - Latest diff uploaded
| Information | |
|---|---|
| Andreas Sandberg | |
| gem5 | |
| default | |
| Reviewers | |
| Default | |
| gblack | |
Changeset 9760:f7df7b862186 --------------------------- x86: Add support for FLDENV & FNSTENV
Quick regressions pass. Minor stat differences in full regressions (to be expected since some instructions aren't no-ops anymore). Solves a bug triggered by switching between a simulated CPU that tries to save the x87 state and a virtualized CPU that restores the state (which is completely bogus unless FNSTENV is implemented).