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import importlib
from dataclasses import dataclass
from assembler_ops import *
from assembler_eval import *
@dataclass
class Result1Line:
line_num: int
parts: list[str]
@dataclass
class Result1:
lines: list[Result1Line]
options: Options
operations: OpExpansionDict
def pass_1(lines: list[str]) -> Result1:
options = Options()
result_lines: list[Result1Line] = []
operations: OpExpansionDict = default_expansions.copy()
for (line_num, line) in enumerate(lines):
line = line.split(";")[0].strip()
if line == "": continue
keyword, *args = line.lower().split()
match keyword:
case "@opt":
opt_name, opt_value = args
match opt_name:
case "stack_pointer": options.stack_pointer = opt_value
case "csr_scratch": options.csr_scratch = opt_value
case _: raise Exception("Unknown @opt: " + opt_name)
case "@use":
module_name, ops = args[0].split(":")
ops_split = ops.split(",")
module = importlib.import_module(module_name)
mod_expansions: OpExpansionDict = module.expansions
for op in mod_expansions:
expansion = mod_expansions[op]
if ops == "*" or op in ops_split:
operations[op] = expansion
case _:
result_lines.append(Result1Line(
line_num=line_num,
parts=[keyword, *args]
))
return Result1(
operations=operations,
options=options,
lines=result_lines
)
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