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Diffstat (limited to 'src/arch/isa_parser.py')
-rwxr-xr-xsrc/arch/isa_parser.py30
1 files changed, 17 insertions, 13 deletions
diff --git a/src/arch/isa_parser.py b/src/arch/isa_parser.py
index 282010429..4e06c2ded 100755
--- a/src/arch/isa_parser.py
+++ b/src/arch/isa_parser.py
@@ -388,12 +388,14 @@ class Operand(object):
type (e.g., "32-bit integer register").'''
def buildReadCode(self, func = None):
- code = self.read_code % {"name": self.base_name,
- "func": func,
- "op_idx": self.src_reg_idx,
- "reg_idx": self.reg_spec,
- "size": self.size,
- "ctype": self.ctype}
+ subst_dict = {"name": self.base_name,
+ "func": func,
+ "reg_idx": self.reg_spec,
+ "size": self.size,
+ "ctype": self.ctype}
+ if hasattr(self, 'src_reg_idx'):
+ subst_dict['op_idx'] = self.src_reg_idx
+ code = self.read_code % subst_dict
if self.size != self.dflt_size:
return '%s = bits(%s, %d, 0);\n' % \
(self.base_name, code, self.size-1)
@@ -406,13 +408,15 @@ class Operand(object):
final_val = 'sext<%d>(%s)' % (self.size, self.base_name)
else:
final_val = self.base_name
- code = self.write_code % {"name": self.base_name,
- "func": func,
- "op_idx": self.dest_reg_idx,
- "reg_idx": self.reg_spec,
- "size": self.size,
- "ctype": self.ctype,
- "final_val": final_val}
+ subst_dict = {"name": self.base_name,
+ "func": func,
+ "reg_idx": self.reg_spec,
+ "size": self.size,
+ "ctype": self.ctype,
+ "final_val": final_val}
+ if hasattr(self, 'dest_reg_idx'):
+ subst_dict['op_idx'] = self.dest_reg_idx
+ code = self.write_code % subst_dict
return '''
{
%s final_val = %s;