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authorGabe Black <gblack@eecs.umich.edu>2007-07-30 13:26:14 -0700
committerGabe Black <gblack@eecs.umich.edu>2007-07-30 13:26:14 -0700
commit0d31a41304c56b68d3544a520a1c0f1e8d779bfe (patch)
treee24eb31cbba3b5a4cbf9b3c6adb4a559dd7dc23e
parent31a862b8f1ed35c1fe80b0529ee5bafdc20e3665 (diff)
downloadgem5-0d31a41304c56b68d3544a520a1c0f1e8d779bfe.tar.xz
X86: Make register names in disassembly reflect high bytes.
--HG-- extra : convert_revision : e2891581e5504de0a2c8e5932fd22425cafd4fc7
-rw-r--r--src/arch/x86/insts/static_inst.cc17
1 files changed, 15 insertions, 2 deletions
diff --git a/src/arch/x86/insts/static_inst.cc b/src/arch/x86/insts/static_inst.cc
index 9b2f81e49..948a74bc1 100644
--- a/src/arch/x86/insts/static_inst.cc
+++ b/src/arch/x86/insts/static_inst.cc
@@ -117,15 +117,27 @@ namespace X86ISA
{
assert(size == 1 || size == 2 || size == 4 || size == 8);
static const char * abcdFormats[9] =
- {"", "%sl", "%sx", "", "e%sx", "", "", "", "r%sx"};
+ {"", "%s", "%sx", "", "e%sx", "", "", "", "r%sx"};
static const char * piFormats[9] =
- {"", "%sl", "%s", "", "e%s", "", "", "", "r%s"};
+ {"", "%s", "%s", "", "e%s", "", "", "", "r%s"};
static const char * longFormats[9] =
{"", "r%sb", "r%sw", "", "r%sd", "", "", "", "r%s"};
static const char * microFormats[9] =
{"", "t%db", "t%dw", "", "t%dd", "", "", "", "t%d"};
if (reg < FP_Base_DepTag) {
+ char * suffix = "";
+ bool fold = reg & (1 << 6);
+ reg &= ~(1 << 6);
+
+ if(fold)
+ {
+ suffix = "h";
+ reg -= 4;
+ }
+ else if(reg < 8 && size == 1)
+ suffix = "l";
+
switch (reg) {
case INTREG_RAX:
ccprintf(os, abcdFormats[size], "a");
@@ -178,6 +190,7 @@ namespace X86ISA
default:
ccprintf(os, microFormats[size], reg - NUM_INTREGS);
}
+ ccprintf(os, suffix);
} else if (reg < Ctrl_Base_DepTag) {
ccprintf(os, "%%f%d", reg - FP_Base_DepTag);
} else {