S__i_l_f.py 文件源码

def assemble(instrs):
    res = []
    for inst in instrs:
        m = instre.match(inst)
        if not m or not m.group(1) in aCode_map:
            continue
        opcode, parmfmt = aCode_map[m.group(1)]
        res.append(struct.pack("B", opcode))
        if m.group(2):
            if parmfmt == 0:
                continue
            parms = [int(x) for x in re.split(",\s*", m.group(2))]
            if parmfmt == -1:
                l = len(parms)
                res.append(struct.pack(("%dB" % (l+1)), l, *parms))
            else:
                res.append(struct.pack(parmfmt, *parms))
    return b"".join(res)