X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fsoc%2Fdecoder%2Fpseudo%2Fpywriter.py;h=ea69776bd8ad7d3998c022af69c04a4e0424022d;hb=5963eef6679f6833b6b8f854868d90480e3753b2;hp=2f5cd3a46f494394d3415dad7c780885402652a7;hpb=e2904ba90b124835396a61aabaacf692d225ba34;p=soc.git diff --git a/src/soc/decoder/pseudo/pywriter.py b/src/soc/decoder/pseudo/pywriter.py index 2f5cd3a4..ea69776b 100644 --- a/src/soc/decoder/pseudo/pywriter.py +++ b/src/soc/decoder/pseudo/pywriter.py @@ -1,66 +1,79 @@ # python code-writer for OpenPOWER ISA pseudo-code parsing import os +import sys +import shutil +import subprocess from soc.decoder.pseudo.pagereader import ISA from soc.decoder.power_pseudo import convert_to_python from soc.decoder.orderedset import OrderedSet +from soc.decoder.isa.caller import create_args + def get_isasrc_dir(): fdir = os.path.abspath(os.path.dirname(__file__)) fdir = os.path.split(fdir)[0] return os.path.join(fdir, "isa") -def create_args(reglist, extra=None): - args = OrderedSet() - for reg in reglist: - args.add(reg) - args = list(args) - if extra: - args = [extra] + args - return ', '.join(args) - header = """\ # auto-generated by pywriter.py, do not edit or commit -from soc.decoder.isa.caller import ISACaller, inject -from soc.decoder.helpers import (EXTS64, EXTZ64, ROTL64, ROTL32, MASK,) +from soc.decoder.isa.caller import inject, instruction_info +from soc.decoder.helpers import (EXTS, EXTS64, EXTZ64, ROTL64, ROTL32, MASK, + ne, eq, gt, ge, lt, le, ltu, gtu, length, + trunc_divs, trunc_rems, MULS, DIVS, MODS, + EXTS128, undefined) from soc.decoder.selectable_int import SelectableInt from soc.decoder.selectable_int import selectconcat as concat from soc.decoder.orderedset import OrderedSet -class %s(ISACaller): +class %s: """ +iinfo_template = """instruction_info(func=%s, + read_regs=%s, + uninit_regs=%s, write_regs=%s, + special_regs=%s, op_fields=%s, + form='%s', + asmregs=%s)""" + + class PyISAWriter(ISA): def __init__(self): ISA.__init__(self) + self.pages_written = [] def write_pysource(self, pagename): + self.pages_written.append(pagename) instrs = isa.page[pagename] isadir = get_isasrc_dir() fname = os.path.join(isadir, "%s.py" % pagename) with open(fname, "w") as f: iinf = '' - f.write(header % pagename) # write out header + f.write(header % pagename) # write out header # go through all instructions for page in instrs: d = self.instr[page] - print (fname, d.opcode) + print("page", pagename, page, fname, d.opcode) pcode = '\n'.join(d.pcode) + '\n' - print (pcode) - pycode, rused = convert_to_python(pcode) + print(pcode) + incl_carry = pagename == 'fixedshift' + pycode, rused = convert_to_python(pcode, d.form, incl_carry) # create list of arguments to call regs = list(rused['read_regs']) + list(rused['uninit_regs']) - args = create_args(regs, 'self') + regs += list(rused['special_regs']) + args = ', '.join(create_args(regs, 'self')) # create list of arguments to return - retargs = create_args(rused['write_regs']) + retargs = ', '.join(create_args(rused['write_regs'])) # write out function. pre-pend "op_" because some instrs are # also python keywords (cmp). also replace "." with "_" - op_fname ="op_%s" % page.replace(".", "_") - f.write(" @inject(self.namespace)\n") + op_fname = "op_%s" % page.replace(".", "_") + f.write(" @inject()\n") f.write(" def %s(%s):\n" % (op_fname, args)) + if 'NIA' in pycode: # HACK - TODO fix + f.write(" global NIA\n") pycode = pycode.split("\n") pycode = '\n'.join(map(lambda x: " %s" % x, pycode)) pycode = pycode.rstrip() @@ -70,19 +83,60 @@ class PyISAWriter(ISA): else: f.write("\n") # accumulate the instruction info - iinfo = "(%s, %s,\n %s, %s)" % \ - (op_fname, rused['read_regs'], - rused['uninit_regs'], rused['write_regs']) - iinf += " instrs['%s'] = %s\n" % (page, iinfo) + ops = repr(rused['op_fields']) + iinfo = iinfo_template % (op_fname, rused['read_regs'], + rused['uninit_regs'], + rused['write_regs'], + rused['special_regs'], + ops, d.form, d.regs) + iinf += " %s_instrs['%s'] = %s\n" % (pagename, page, iinfo) # write out initialisation of info, for ISACaller to use - f.write(" instrs = {}\n") + f.write(" %s_instrs = {}\n" % pagename) f.write(iinf) + def patch_if_needed(self, source): + isadir = get_isasrc_dir() + fname = os.path.join(isadir, "%s.py" % source) + patchname = os.path.join(isadir, "%s.patch" % source) + + try: + with open(patchname, 'r') as patch: + newfname = fname + '.orig' + shutil.copyfile(fname, newfname) + subprocess.check_call(['patch', fname], + stdin=patch) + except: + pass + + def write_isa_class(self): + isadir = get_isasrc_dir() + fname = os.path.join(isadir, "all.py") + + with open(fname, "w") as f: + f.write('# auto-generated by pywriter.py: do not edit or commit\n') + f.write('from soc.decoder.isa.caller import ISACaller\n') + for page in self.pages_written: + f.write('from soc.decoder.isa.%s import %s\n' % (page, page)) + f.write('\n') + + classes = ', '.join(['ISACaller'] + self.pages_written) + f.write('class ISA(%s):\n' % classes) + f.write(' def __init__(self, *args, **kwargs):\n') + f.write(' super().__init__(*args, **kwargs)\n') + f.write(' self.instrs = {\n') + for page in self.pages_written: + f.write(' **self.%s_instrs,\n' % page) + f.write(' }\n') + + if __name__ == '__main__': isa = PyISAWriter() - isa.write_pysource('fixedlogical') - exit(0) - isa.write_pysource('fixedstore') - isa.write_pysource('fixedload') - isa.write_pysource('comparefixed') - isa.write_pysource('fixedarith') + if len(sys.argv) == 1: # quick way to do it + print(dir(isa)) + sources = isa.page.keys() + else: + sources = sys.argv[1:] + for source in sources: + isa.write_pysource(source) + isa.patch_if_needed(source) + isa.write_isa_class()