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authorGabe Black <gblack@eecs.umich.edu>2009-08-07 10:13:20 -0700
committerGabe Black <gblack@eecs.umich.edu>2009-08-07 10:13:20 -0700
commit3a55fc5cace5fdf744a891c6d32c4a9d4c10694a (patch)
tree36695ff44c29ff0b249d66e4fc05957e903c45ed /src/arch/x86/isa/operands.isa
parent62a2e85c9a0af39970568b35afa4d050ef571b23 (diff)
downloadgem5-3a55fc5cace5fdf744a891c6d32c4a9d4c10694a.tar.xz
X86: Implement shift right/left double microops.
This is my best guess as far as what these should do. Other existing microops use implicit registers, mul1s and mul1u for instance, so this should be ok. The microop that loads the implicit DoubleBits register would fall into one of the microop slots for moving to/from special registers.
Diffstat (limited to 'src/arch/x86/isa/operands.isa')
-rw-r--r--src/arch/x86/isa/operands.isa1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/arch/x86/isa/operands.isa b/src/arch/x86/isa/operands.isa
index 5ea803bfc..135fc10df 100644
--- a/src/arch/x86/isa/operands.isa
+++ b/src/arch/x86/isa/operands.isa
@@ -127,6 +127,7 @@ def operands {{
'Quotient': impIntReg(2, 9),
'Remainder': impIntReg(3, 10),
'Divisor': impIntReg(4, 11),
+ 'DoubleBits': impIntReg(5, 11),
'Rax': intReg('(INTREG_RAX)', 12),
'Rbx': intReg('(INTREG_RBX)', 13),
'Rcx': intReg('(INTREG_RCX)', 14),