#!/usr/bin/env python3
import utils
import sys
import dasm.instrs as instrs
instrs.addrs.update({
0x1e: "[__WORD]",
0x1f: "__WORD"
})
if len(sys.argv) != 2:
print("usage: disasm.py [hex file]")
exit(1)
hexfile = open(sys.argv[1],"r")
wordlist = utils.hex_to_words(hexfile.read())
def decode_addr(addr):
if addr < 0x8:
return (instrs.regs[addr],0)
if addr < 0x10:
return ('[' + instrs.regs[addr - 0x8] + ']',0)
if addr < 0x18:
return ('[' + instrs.regs[addr - 0x10] + ' + __WORD]',1)
if addr & 0x20:
return (hex(addr & 0x1f),0)
if addr == 0x1f or addr == 0x1e:
return (instrs.addrs[addr],1)
else:
return (instrs.addrs[addr],0)
return ("UNKNOWN",0)
def add_watchpoint(self,watchpoint):
lib.add_watchpoint(byref(self.struct), watchpoint)
def del_watchpoint(self,watchpoint):
lib.del_watchpoint(byref(self.struct), watchpoint)
def get_nonzero_chunks(self):
last = c_uint16(0)
start = c_uint16(0)
end = c_uint16(0)
chunks = []
while True:
lib.get_next_nonzero_chunk(byref(self.struct), last,
byref(start), byref(end))
if start.value == c_uint16(-1).value:
break
chunks.append((start.value,end.value))
last.value = end.value
return chunks
if __name__ == "__main__":
import sys
import utils
ifile = open(sys.argv[1],"r")
mem = utils.hex_to_words(ifile.read())
cpu = DCPU()
cpu.load_from_hex(mem)
cpu.run_forever()
