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authorGabe Black <gblack@eecs.umich.edu>2007-11-12 14:38:45 -0800
committerGabe Black <gblack@eecs.umich.edu>2007-11-12 14:38:45 -0800
commitf9ddb894dd92d6cc5601d65a3c58dc5dd73f7ac7 (patch)
treedecee5793bb85d01031164d6df674d04d9c36c36 /src/arch/x86/isa/insts/general_purpose/data_transfer/stack_operations.py
parent6d4ba8de34e4427a0488e6bc0a9f5b9ec5b1a265 (diff)
downloadgem5-f9ddb894dd92d6cc5601d65a3c58dc5dd73f7ac7.tar.xz
X86: Change the meaning of the sext and zext width operand, and make sext set zext if the sign bit is 0.
--HG-- extra : convert_revision : 08bd7b4ff183038c016612d04ac73b20a255d141
Diffstat (limited to 'src/arch/x86/isa/insts/general_purpose/data_transfer/stack_operations.py')
-rw-r--r--src/arch/x86/isa/insts/general_purpose/data_transfer/stack_operations.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/arch/x86/isa/insts/general_purpose/data_transfer/stack_operations.py b/src/arch/x86/isa/insts/general_purpose/data_transfer/stack_operations.py
index 5884d68c2..6c51f3171 100644
--- a/src/arch/x86/isa/insts/general_purpose/data_transfer/stack_operations.py
+++ b/src/arch/x86/isa/insts/general_purpose/data_transfer/stack_operations.py
@@ -162,9 +162,9 @@ def macroop ENTER_I_I {
# Pull the different components out of the immediate
limm t1, imm
- zext t2, t1, 16, dataSize=2
+ zexti t2, t1, 15, dataSize=2
srl t1, t1, 16
- zext t1, t1, 6
+ zexti t1, t1, 5
# t1 is now the masked nesting level, and t2 is the amount of storage.
# Push rbp.