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target-ppc: Introduce tbegin

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Provide a degenerate implementation of the tbegin instruction.  This
implementation always fails the transaction, recording the failure
per Book II Section 5.3.2 of the Power ISA V2.07.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Tom Musta 2014-12-18 10:34:34 -06:00 • committed by Alexander Graf
parent aac862379c
commit 0ff93d11bc
3 changed files with 36 additions and 0 deletions
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target-ppc/helper.h
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@ -665,3 +665,5 @@ DEF_HELPER_4(dscri, void, env, fprp, fprp, i32)
DEF_HELPER_4(dscriq, void, env, fprp, fprp, i32)
DEF_HELPER_4(dscli, void, env, fprp, fprp, i32)
DEF_HELPER_4(dscliq, void, env, fprp, fprp, i32)
DEF_HELPER_1(tbegin, void, env)