jb302@28: #!/usr/bin/env python
jb302@28: # dbg.py - debug client
jb302@28: import struct
jb302@28: import os, sys
jb302@28: from subprocess import Popen, PIPE, STDOUT
jb302@28: 
jb302@28: emu = Popen(['./a.out'], stdout=PIPE, stdin=PIPE, stderr=PIPE)
jb302@28: 
jb302@28: def snd(m):
jb302@28:     emu.stdin.write(struct.pack('>B', m))
jb302@28: 
jb302@28: def rcv():
jb302@28:     with open('out', 'r') as f:
jb302@28:         c = f.read()
jb302@28:     return c
jb302@28: 
jb302@28: def step():
jb302@28:     snd(0x00)
jb302@28: 
jb302@28: def run():
jb302@28:     snd(0x01)
jb302@28: 
jb302@28: def set_reg(reg, data):
jb302@28:     snd(0x02)
jb302@28:     snd(reg)  # reg
jb302@28:     snd(data) # data
jb302@28: 
jb302@28: def get_reg(reg):
jb302@28:     snd(0x03)
jb302@28:     snd(reg)  # reg
jb302@28:     #return rcv()
jb302@28: 
jb302@28: def set_flag(flag, on):
jb302@28:     snd(0x04)
jb302@28:     if on == 0:
jb302@28:         snd(flag)
jb302@28:         snd(0)
jb302@28:     else:
jb302@28:         snd(flag)
jb302@28:         snd(1)
jb302@28: 
jb302@28: def get_flag(flag):
jb302@28:     snd(0x05)
jb302@28:     snd(flag)
jb302@28:     #return rcv()
jb302@28: 
jb302@28: def set_block(addrh, addrl, lenh, lenl, data):
jb302@28:     snd(0x06)
jb302@28:     snd(addrh) # address high byte
jb302@28:     snd(addrl) # address low byte
jb302@28:     snd(lenh)
jb302@28:     snd(lenl)
jb302@28:     for b in data:
jb302@28:         snd(b) # data
jb302@28: 
jb302@28: def get_block(addrh, addrl, lenh, lenl):
jb302@28:     block = []
jb302@28:     snd(0x07)
jb302@28:     snd(addrh) # address high byte
jb302@28:     snd(addrl) # address low byte
jb302@28:     snd(lenh)  
jb302@28:     snd(lenl) 
jb302@28:     #lc = 0
jb302@28:     #while lc != l:
jb302@28:     #    lc = os.path.getsize('out');
jb302@28:     #return rcv()
jb302@28: 
jb302@28: registers = {   
jb302@28:         'r0':0,
jb302@28:         'r1':1,
jb302@28:         'r2':2,
jb302@28:         'r3':3,
jb302@28:         'dph':4,
jb302@28:         'dpl':5,
jb302@28:         'sph':6,
jb302@28:         'spl':7,
jb302@28:         'a':8,
jb302@28:         'flags':9
jb302@28:         }
jb302@28: 
jb302@28: cmds = {
jb302@28:         'step':step,
jb302@28:         'run':run,
jb302@28:         'sr':set_reg,
jb302@28:         'gr':get_reg,
jb302@28:         'sf':set_flag,
jb302@28:         'gf':get_flag,
jb302@28:         'sb':set_block,
jb302@28:         'gb':get_block
jb302@28:         }