From 6b95f24145d363ab72d26bf74a4ddb43ba9f9835 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Tue, 14 Nov 2006 01:28:11 -0500
Subject: Fix up the disassembly a little.
--HG--
extra : convert_revision : 7bdf68f445b79b1b5dbcdfa5fa1005c68d03724c
---
src/arch/sparc/isa/formats/mem/util.isa | 37 ++++++++++++++++++++-------------
src/arch/sparc/isa/formats/priv.isa | 19 +++++++++++++----
2 files changed, 37 insertions(+), 19 deletions(-)
(limited to 'src/arch/sparc')
diff --git a/src/arch/sparc/isa/formats/mem/util.isa b/src/arch/sparc/isa/formats/mem/util.isa
index 00360aa43..857f37160 100644
--- a/src/arch/sparc/isa/formats/mem/util.isa
+++ b/src/arch/sparc/isa/formats/mem/util.isa
@@ -76,23 +76,26 @@ output decoder {{
{
std::stringstream response;
bool load = flags[IsLoad];
- bool save = flags[IsStore];
+ bool store = flags[IsStore];
printMnemonic(response, mnemonic);
- if(save)
+ if(store)
{
- printReg(response, _srcRegIdx[0]);
+ printReg(response, _srcRegIdx[0]);
ccprintf(response, ", ");
}
- ccprintf(response, "[ ");
- printReg(response, _srcRegIdx[!save ? 0 : 1]);
- ccprintf(response, " + ");
- printReg(response, _srcRegIdx[!save ? 1 : 2]);
- ccprintf(response, " ]");
+ ccprintf(response, "[");
+ if(_srcRegIdx[!store ? 0 : 1] != 0)
+ {
+ printSrcReg(response, !store ? 0 : 1);
+ ccprintf(response, " + ");
+ }
+ printSrcReg(response, !store ? 1 : 2);
+ ccprintf(response, "]");
if(load)
{
ccprintf(response, ", ");
- printReg(response, _destRegIdx[0]);
+ printReg(response, _destRegIdx[0]);
}
return response.str();
@@ -108,19 +111,23 @@ output decoder {{
printMnemonic(response, mnemonic);
if(save)
{
- printReg(response, _srcRegIdx[0]);
+ printReg(response, _srcRegIdx[0]);
ccprintf(response, ", ");
}
- ccprintf(response, "[ ");
- printReg(response, _srcRegIdx[!save ? 0 : 1]);
+ ccprintf(response, "[");
+ if(_srcRegIdx[!save ? 0 : 1] != 0)
+ {
+ printReg(response, _srcRegIdx[!save ? 0 : 1]);
+ ccprintf(response, " + ");
+ }
if(imm >= 0)
- ccprintf(response, " + 0x%x ]", imm);
+ ccprintf(response, "0x%x]", imm);
else
- ccprintf(response, " + -0x%x ]", -imm);
+ ccprintf(response, "-0x%x]", -imm);
if(load)
{
ccprintf(response, ", ");
- printReg(response, _destRegIdx[0]);
+ printReg(response, _destRegIdx[0]);
}
return response.str();
diff --git a/src/arch/sparc/isa/formats/priv.isa b/src/arch/sparc/isa/formats/priv.isa
index 94a68aebe..3d47ca02f 100644
--- a/src/arch/sparc/isa/formats/priv.isa
+++ b/src/arch/sparc/isa/formats/priv.isa
@@ -153,8 +153,13 @@ output decoder {{
printMnemonic(response, mnemonic);
ccprintf(response, " ");
- printSrcReg(response, 0);
- ccprintf(response, ", ");
+ //If the first reg is %g0, don't print it.
+ //This improves readability
+ if(_srcRegIdx[0] != 0)
+ {
+ printSrcReg(response, 0);
+ ccprintf(response, ", ");
+ }
printSrcReg(response, 1);
ccprintf(response, ", %%%s", regName);
@@ -169,8 +174,14 @@ output decoder {{
printMnemonic(response, mnemonic);
ccprintf(response, " ");
- printSrcReg(response, 0);
- ccprintf(response, ", 0x%x, %%%s", imm, regName);
+ //If the first reg is %g0, don't print it.
+ //This improves readability
+ if(_srcRegIdx[0] != 0)
+ {
+ printSrcReg(response, 0);
+ ccprintf(response, ", ");
+ }
+ ccprintf(response, "0x%x, %%%s", imm, regName);
return response.str();
}
--
cgit v1.2.3
From c2ceaa887e07a219b16423d8f9c20624785ee4a1 Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Tue, 14 Nov 2006 01:29:11 -0500
Subject: Make sure a POR doesn't clobber the value of the hpstate.
--HG--
extra : convert_revision : 4504f08fd94792819bd4419bbd2e0ebd1d7f29e9
---
src/arch/sparc/faults.cc | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
(limited to 'src/arch/sparc')
diff --git a/src/arch/sparc/faults.cc b/src/arch/sparc/faults.cc
index 4cf411d3b..3ec41ba61 100644
--- a/src/arch/sparc/faults.cc
+++ b/src/arch/sparc/faults.cc
@@ -593,7 +593,16 @@ void PowerOnReset::invoke(ThreadContext * tc)
tc->setMiscReg(MISCREG_PSTATE, 1 << 4);
//Turn on red and hpriv, set everything else to 0
- tc->setMiscReg(MISCREG_HPSTATE, (1 << 5) | (1 << 2));
+ MiscReg HPSTATE = tc->readMiscReg(MISCREG_HPSTATE);
+ //HPSTATE.red = 1
+ HPSTATE |= (1 << 5);
+ //HPSTATE.hpriv = 1
+ HPSTATE |= (1 << 2);
+ //HPSTATE.ibe = 0
+ HPSTATE &= ~(1 << 10);
+ //HPSTATE.tlz = 0
+ HPSTATE &= ~(1 << 0);
+ tc->setMiscReg(MISCREG_HPSTATE, HPSTATE);
//The tick register is unreadable by nonprivileged software
tc->setMiscReg(MISCREG_TICK, 1ULL << 63);
--
cgit v1.2.3
From 20730b790c98bfb29d1f57911b32610af4d6e35b Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Tue, 14 Nov 2006 01:30:34 -0500
Subject: Set hpstate to be what I'm assuming Legion is.
--HG--
extra : convert_revision : 0be66513cb0cff07c0c2b50c97c1ea74d52b0dc9
---
src/arch/sparc/miscregfile.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'src/arch/sparc')
diff --git a/src/arch/sparc/miscregfile.cc b/src/arch/sparc/miscregfile.cc
index d52e3983f..d9d7f4411 100644
--- a/src/arch/sparc/miscregfile.cc
+++ b/src/arch/sparc/miscregfile.cc
@@ -88,7 +88,8 @@ void MiscRegFile::reset()
otherwin = 0;
wstate = 0;
gl = 0;
- hpstate = 0;
+ //In a T1, bit 11 is apparently always 1
+ hpstate = (1 << 11);
memset(htstate, 0, sizeof(htstate));
hintp = 0;
htba = 0;
--
cgit v1.2.3