# Path: luz_asm_sim/lib/asmlib/asm_common_types.py

# 
# Path: luz_asm_sim/lib/commonlib/portability.py
# def is_int_type(obj):
#     if sys.hexversion > 0x03000000:
#         return isinstance(obj, int)
#     else:
#         return isinstance(obj, int) or isinstance(obj, long)
# 
# Path: luz_asm_sim/lib/asmlib/asmparser.py
# class ParseError(Exception): pass
# class AsmParser(object):
#     def __init__(self, yacctab='parsetab'):
#     def parse(self, text):
#     def _lex_error_func(self, msg):
#     def p_asm_file(self, p):
#     def p_asm_line_1(self, p):
#     def p_asm_line_2(self, p):
#     def p_empty_line(self, p):
#     def p_directive_1(self, p):
#     def p_directive_2(self, p):
#     def p_instruction_1(self, p):
#     def p_instruction_2(self, p):
#     def p_label_def(self, p):
#     def p_arguments_opt(self, p):
#     def p_arguments_1(self, p):
#     def p_arguments_2(self, p):
#     def p_argument_1(self, p):
#     def p_argument_2(self, p):
#     def p_argument_3(self, p):
#     def p_argument_4(self, p):
#     def p_argument_5(self, p):
#     def p_number(self, p):
#     def p_error(self, p):


import re
from .asm_common_types import ImportType, RelocType
from ..commonlib.utils import (
    extract_bitfield, num_fits_in_nbits, build_bitfield)
from ..commonlib.luz_opcodes import *
from ..commonlib.portability import is_int_type
from .asmparser import (
    AsmParser, Id, Number, String, MemRef)
            op= build_bitfield(31, 26, _opcode_of('eret')))

def _instr_halt(args, instr_addr, symtab, defines):
    return AssembledInstruction(
            op= build_bitfield(31, 26, _opcode_of('halt')))


def _instr_call(args, instr_addr, symtab, defines):
    # CALL accepts an absolute address or a label. The label can
    # either be external (not defined in the symbol table) or
    # internal (defined in the symbol table).
    #
    # External labels:
    # We don't know what the address of an external label is.
    # Therefore, an import request is added into the assembled
    # instruction. This import request will be connected to this
    # instruction and the linker will patch the destination
    # address when it becomes known.
    #
    # Internal labels:
    # For internal labels a relocation is required. The label's
    # address will be inserted into the destination field of the
    # instruction, and a relocation request for the segment in
    # which the label is defined will be returned with the
    # assembled instruction. This relocation request will be
    # seen by the linker that will patch the destination once the
    # relocation address of the segment becomes known.
    #
    opcode_field = build_bitfield(31, 26, _opcode_of('call'))


# Path: luz_asm_sim/lib/asmlib/asm_common_types.py

# 
# Path: luz_asm_sim/lib/commonlib/portability.py
# def is_int_type(obj):
#     if sys.hexversion > 0x03000000:
#         return isinstance(obj, int)
#     else:
#         return isinstance(obj, int) or isinstance(obj, long)
# 
# Path: luz_asm_sim/lib/asmlib/asmparser.py
# class ParseError(Exception): pass
# class AsmParser(object):
#     def __init__(self, yacctab='parsetab'):
#     def parse(self, text):
#     def _lex_error_func(self, msg):
#     def p_asm_file(self, p):
#     def p_asm_line_1(self, p):
#     def p_asm_line_2(self, p):
#     def p_empty_line(self, p):
#     def p_directive_1(self, p):
#     def p_directive_2(self, p):
#     def p_instruction_1(self, p):
#     def p_instruction_2(self, p):
#     def p_label_def(self, p):
#     def p_arguments_opt(self, p):
#     def p_arguments_1(self, p):
#     def p_arguments_2(self, p):
#     def p_argument_1(self, p):
#     def p_argument_2(self, p):
#     def p_argument_3(self, p):
#     def p_argument_4(self, p):
#     def p_argument_5(self, p):
#     def p_number(self, p):
#     def p_error(self, p):


# Path: luz_asm_sim/lib/asmlib/asm_instructions.py
import re
from .asm_common_types import ImportType, RelocType
from ..commonlib.utils import (
    extract_bitfield, num_fits_in_nbits, build_bitfield)
from ..commonlib.luz_opcodes import *
from ..commonlib.portability import is_int_type
from .asmparser import (
    AsmParser, Id, Number, String, MemRef)

            op= build_bitfield(31, 26, _opcode_of('eret')))

def _instr_halt(args, instr_addr, symtab, defines):
    return AssembledInstruction(
            op= build_bitfield(31, 26, _opcode_of('halt')))


def _instr_call(args, instr_addr, symtab, defines):
    # CALL accepts an absolute address or a label. The label can
    # either be external (not defined in the symbol table) or
    # internal (defined in the symbol table).
    #
    # External labels:
    # We don't know what the address of an external label is.
    # Therefore, an import request is added into the assembled
    # instruction. This import request will be connected to this
    # instruction and the linker will patch the destination
    # address when it becomes known.
    #
    # Internal labels:
    # For internal labels a relocation is required. The label's
    # address will be inserted into the destination field of the
    # instruction, and a relocation request for the segment in
    # which the label is defined will be returned with the
    # assembled instruction. This relocation request will be
    # seen by the linker that will patch the destination once the
    # relocation address of the segment becomes known.
    #
    opcode_field = build_bitfield(31, 26, _opcode_of('call'))


    if (isinstance(args[0], Number) or