[Libre-soc-bugs] [Bug 671] convert spec pseudocode to use XLEN width

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=671

--- Comment #5 from dmitry.selyutin at 3mdeb.com ---
I managed to "teach" parser and and lexer XLEN, but I doubt this is how we want
it to be handled.

diff --git a/src/openpower/decoder/pseudo/lexer.py
b/src/openpower/decoder/pseudo/lexer.py
index aad11a0..ce79e6a 100644
--- a/src/openpower/decoder/pseudo/lexer.py
+++ b/src/openpower/decoder/pseudo/lexer.py
@@ -326,6 +326,7 @@ class PowerLexer:
         'INDENT',
         'DEDENT',
         'ENDMARKER',
+        'XLEN',
     )

     # Build the lexer
@@ -398,6 +399,11 @@ class PowerLexer:
         "default": "DEFAULT",
     }

+    def t_XLEN(self, t):
+        r'XLEN'
+        t.type = self.RESERVED.get(t.value, "XLEN")
+        return t
+
     def t_NAME(self, t):
         r'[a-zA-Z_][a-zA-Z0-9_]*'
         t.type = self.RESERVED.get(t.value, "NAME")
diff --git a/src/openpower/decoder/pseudo/parser.py
b/src/openpower/decoder/pseudo/parser.py
index 4f11f6f..61376ab 100644
--- a/src/openpower/decoder/pseudo/parser.py
+++ b/src/openpower/decoder/pseudo/parser.py
@@ -721,6 +721,10 @@ class PowerParser:
                 if name in regs + fregs:
                     self.read_regs.add(name)

+    def p_XLEN(self, p):
+        """atom : XLEN"""
+        p[0] = ast.Constant(64)
+
     def p_atom_name(self, p):
         """atom : NAME"""
         name = p[1]

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