4 files changed, 32 insertions, 6 deletions
diff --git a/nandgame/assembler/ex2.asm b/nandgame/assembler/ex2.asm
index 50bdc63..c6f8353 100644
--- a/nandgame/assembler/ex2.asm
+++ b/nandgame/assembler/ex2.asm
@@ -7,4 +7,8 @@
     and _, #0, A
     and _, #0, A
     mov A, #123
+    mov A, #0b00010000
+    mov A, #020
+    mov A, #16
+    mov A, #0x20
     hlt
diff --git a/nandgame/assembler/number_test.txt b/nandgame/assembler/number_test.txt
new file mode 100644
index 0000000..5735425
--- /dev/null
+++ b/nandgame/assembler/number_test.txt
@@ -0,0 +1,5 @@
+; test number parsing
+0b10
+010
+10
+0x10
diff --git a/nandgame/assembler/py_nand_ass/lexer.py b/nandgame/assembler/py_nand_ass/lexer.py
index 75a3f2f..436119b 100755
--- a/nandgame/assembler/py_nand_ass/lexer.py
+++ b/nandgame/assembler/py_nand_ass/lexer.py
@@ -10,8 +10,10 @@ tokens = (
     "COLON",
     "SYMBOL",
     "SHARP",
-    "NUMBER",
+    "BINNUMBER",
+    "OCTNUMBER",
     "HEXNUMBER",
+    "DECNUMBER",
     "DOT",
     "REG",
     "NL",
@@ -39,9 +41,16 @@ def t_JUMP(t):
     return t
 
 
-def t_NUMBER(t):
-    r"\d+"
-    t.value = int(t.value)
+# order matters! these need to come first!
+def t_BINNUMBER(t):
+    r"0b[01]+"
+    t.value = int(t.value, 2)
+    return t
+
+
+def t_OCTNUMBER(t):
+    r"0[0-9]+"
+    t.value = int(t.value, 8)
     return t
 
 
@@ -51,8 +60,14 @@ def t_HEXNUMBER(t):
     return t
 
 
+def t_DECNUMBER(t):
+    r"\d+"
+    t.value = int(t.value)
+    return t
+
+
 def t_SYMBOL(t):
-    r"[A-Za-z][A-Za-z0-9_]+"
+    r"\b([A-Za-z][A-Za-z0-9_]+)\b"
     return t
 
 
diff --git a/nandgame/assembler/py_nand_ass/parser.py b/nandgame/assembler/py_nand_ass/parser.py
index 6c7b5eb..0a4aee2 100755
--- a/nandgame/assembler/py_nand_ass/parser.py
+++ b/nandgame/assembler/py_nand_ass/parser.py
@@ -158,8 +158,10 @@ def p_opcode_njmp(p: P) -> None:
 
 
 def p_number(p: P) -> None:
-    """number : SHARP NUMBER
+    """number : SHARP BINNUMBER
+              | SHARP OCTNUMBER
               | SHARP HEXNUMBER
+              | SHARP DECNUMBER
     """
     p[0] = pt.Immediate(p[2])