cleanup: remove leftover "register symbols"

Author: ThomasWaldmann

esp32_ulp/assemble.py

@@ -44,7 +44,7 @@ def parse(lines):
 
 
 def assemble(lines):
-    symbols = dict(r0=0, R0=0, r1=1, R1=1, r2=2, R2=2, r3=3, R3=3)
+    symbols = {}
     code = []
     addr = 0
     for label, opcode, args in parse(lines):

tests/assemble.py

@@ -36,7 +36,7 @@ def test_parse():
 def test_assemble():
     lines = src.splitlines()
     symbols, code = assemble(lines)
-    assert {'start', 'end'} < set(symbols)
+    assert {'start', 'end'} <= set(symbols)
     assert symbols['start'] == 0
     assert symbols['end'] == 4
     assert len(code) == 4