Boris Shingarov has submitted this change. (
https://gem5-review.googlesource.com/c/public/gem5/+/40888 )
Change subject: arch-power: Fix disassembly for branch instructions
......................................................................
arch-power: Fix disassembly for branch instructions
This fixes disassembly generated for branch instructions
based on the AA and LK bits which determine how the target
address is calculated and whether a return address needs
to be set implicitly or not.
Change-Id: I1acba72c360a1fcb4691de17fbae1a012a752dbe
Signed-off-by: Sandipan Das <sandi...@linux.ibm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/40888
Reviewed-by: Boris Shingarov <shinga...@gmail.com>
Maintainer: Gabe Black <gabe.bl...@gmail.com>
Tested-by: kokoro <noreply+kok...@google.com>
---
M src/arch/power/insts/branch.cc
1 file changed, 30 insertions(+), 5 deletions(-)
Approvals:
Boris Shingarov: Looks good to me, approved
Gabe Black: Looks good to me, approved
kokoro: Regressions pass
diff --git a/src/arch/power/insts/branch.cc b/src/arch/power/insts/branch.cc
index 1077f33..1789734 100644
--- a/src/arch/power/insts/branch.cc
+++ b/src/arch/power/insts/branch.cc
@@ -67,7 +67,16 @@
std::stringstream ss;
Addr target;
- ccprintf(ss, "%-10s ", mnemonic);
+ // Generate correct mnemonic
+ std::string myMnemonic(mnemonic);
+ std::string suffix;
+
+ // Additional characters depending on isa bits being set
+ if (lk)
+ suffix += "l";
+ if (aa)
+ suffix += "a";
+ ccprintf(ss, "%-10s ", myMnemonic + suffix);
if (aa)
target = li;
@@ -102,10 +111,19 @@
std::stringstream ss;
Addr target;
- ccprintf(ss, "%-10s ", mnemonic);
+ // Generate the correct mnemonic
+ std::string myMnemonic(mnemonic);
+ std::string suffix;
+
+ // Additional characters depending on isa bits being set
+ if (lk)
+ suffix += "l";
+ if (aa)
+ suffix += "a";
+ ccprintf(ss, "%-10s ", myMnemonic + suffix);
// Print BI and BO fields
- ss << bi << ", " << bo << ", ";
+ ss << (int) bi << ", " << (int) bo << ", ";
if (aa)
target = bd;
@@ -136,10 +154,17 @@
{
std::stringstream ss;
- ccprintf(ss, "%-10s ", mnemonic);
+ // Generate the correct mnemonic
+ std::string myMnemonic(mnemonic);
+ std::string suffix;
+
+ // Additional characters depending on isa bits being set
+ if (lk)
+ suffix += "l";
+ ccprintf(ss, "%-10s ", myMnemonic + suffix);
// Print the BI and BO fields
- ss << bi << ", " << bo;
+ ss << (int) bi << ", " << (int) bo;
return ss.str();
}
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: I1acba72c360a1fcb4691de17fbae1a012a752dbe
Gerrit-Change-Number: 40888
Gerrit-PatchSet: 6
Gerrit-Owner: Sandipan Das <sandi...@linux.ibm.com>
Gerrit-Reviewer: Boris Shingarov <shinga...@gmail.com>
Gerrit-Reviewer: Gabe Black <gabe.bl...@gmail.com>
Gerrit-Reviewer: kokoro <noreply+kok...@google.com>
Gerrit-MessageType: merged
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