Sandipan Das has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/40919 )
Change subject: arch-power: Add sign-extend instructions
......................................................................
arch-power: Add sign-extend instructions
This adds the following instructions.
* Extend Sign Word (extsw[.])
Change-Id: Ia15fc69de665399f1c8d52ca00d2f7670d553b48
Signed-off-by: Sandipan Das <[email protected]>
---
M src/arch/power/insts/integer.cc
M src/arch/power/isa/decoder.isa
2 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/src/arch/power/insts/integer.cc
b/src/arch/power/insts/integer.cc
index c937a6f..408ca8e 100644
--- a/src/arch/power/insts/integer.cc
+++ b/src/arch/power/insts/integer.cc
@@ -301,6 +301,7 @@
printSecondSrc = false;
} else if (!myMnemonic.compare("extsb") ||
!myMnemonic.compare("extsh") ||
+ !myMnemonic.compare("extsw") ||
!myMnemonic.compare("cntlzw")) {
printSecondSrc = false;
}
diff --git a/src/arch/power/isa/decoder.isa b/src/arch/power/isa/decoder.isa
index 0932ce4..6813582 100644
--- a/src/arch/power/isa/decoder.isa
+++ b/src/arch/power/isa/decoder.isa
@@ -497,6 +497,7 @@
412: orc({{ Ra = Rs | ~Rb; }}, true);
954: extsb({{ Ra = Rs_sb; }}, true);
922: extsh({{ Ra = Rs_sh; }}, true);
+ 986: extsw({{ Ra = Rs_sw; }}, true);
26: cntlzw({{ Ra = findLeadingZeros(Rs_uw); }}, true);
508: cmpb({{
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ia15fc69de665399f1c8d52ca00d2f7670d553b48
Gerrit-Change-Number: 40919
Gerrit-PatchSet: 1
Gerrit-Owner: Sandipan Das <[email protected]>
Gerrit-MessageType: newchange
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