By: octoploid (octoploid.delete@this.yandex.com),
Room: Moderated Discussions
Page 15 of http://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/desktop-6th-gen-core-family-spec-update.pdf states:
SKD002 CPUID Incorrectly Reports Bit Manipulation Instructions Support
Executing CPUID with EAX = 7 and ECX = 0 may return EBX with bits [3]
and [8] set, incorrectly indicating the presence of BMI1 and BMI2
instruction set extensions.
Attempting to use instructions from the BMI1 or BMI2 instruction set
extensions will result in a #UD exception.
Does that mean that BMI1 and BMI2 are not supported on Skylake?
SKD002 CPUID Incorrectly Reports Bit Manipulation Instructions Support
Executing CPUID with EAX = 7 and ECX = 0 may return EBX with bits [3]
and [8] set, incorrectly indicating the presence of BMI1 and BMI2
instruction set extensions.
Attempting to use instructions from the BMI1 or BMI2 instruction set
extensions will result in a #UD exception.
Does that mean that BMI1 and BMI2 are not supported on Skylake?
Thread (17 posts)
| Topic | Posted By | Posted |
|---|---|---|
| No BMI1 and BMI2 on Skylake? | octoploid | |
| No BMI1 and BMI2 on Skylake? | none | |
| No BMI1 and BMI2 on Skylake? | Eric Bron | |
| No BMI1 and BMI2 on Skylake Pentium/Celerron | octoploid | |
| No BMI1 and BMI2 on Skylake Pentium/Celerron | Michael S | |
| No BMI1 and BMI2 on Skylake Pentium/Celerron | Peter Cordes | |
| No BMI1 and BMI2 on Skylake Pentium/Celerron | octoploid | |
| No BMI1 and BMI2 on Skylake Pentium/Celerron | Peter Cordes | |
| No BMI1 and BMI2 on Skylake Pentium/Celeron | octoploid | |
| No BMI1 and BMI2 on Skylake Pentium/Celerron | David Hess | |
| No BMI1 and BMI2 on Skylake Pentium/Celerron | anonymou5 | |
| Cars without features omit the hardware | Carlo Ewing | |
| how come software costs more than the storage for the bits ? (NT) | jokerman | |
| how come software costs more than the storage for the bits ? | dmcq | |
| Cars without features omit the hardware | David Hess | |
| No BMI1 and BMI2 on Skylake Pentium/Celerron | Linus Torvalds | |
| No BMI1 and BMI2 on Skylake? | Tom Womack |


