mirror of
https://github.com/rzzzwilson/pymlac.git
synced 2025-06-10 09:32:41 +00:00
112 lines
2.0 KiB
Python
Executable File
112 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python
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"""
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Import an imlac binary file
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"""
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import sys
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import getopt
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import struct
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import mem
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import disasmdata
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offset = 0
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def doblockloader(f, word):
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ldaddr = 0177700
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numwords = 0100
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while numwords > 0:
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word = readword(f)
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numwords = numwords - 1
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ldaddr = ldaddr + 1
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def dobody(f, count):
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mymem = mem.Mem()
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numwords = count
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while True:
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ldaddr = readword(f)
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if ldaddr & 0x8000:
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break
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csum = 0
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while numwords > 0:
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word = readword(f)
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csum += word
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if csum > 0xffff:
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csum += 1
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csum = csum & 0xffff
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mymem.add(ldaddr, word)
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(op, fld) = disasmdata.disasmdata(word)
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mymem.putOp(ldaddr, op)
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mymem.putFld(ldaddr, fld)
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ldaddr += 1
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numwords -= 1
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checksum = readword(f)
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if csum != checksum:
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print "Checksum error"
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#sys.exit(20)
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numwords = skipzeros(f)
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return mymem
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def ptpimport(file):
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global offset
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try:
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f = open(file, "rb")
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except IOError, e:
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print e
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return 3
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offset = 0
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byte = skipzeros(f)
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word = (byte << 8) + readbyte(f)
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doblockloader(f, word)
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count = skipzeros(f)
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mymem = dobody(f, count)
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return mymem
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def readbyte(f):
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global offset
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try:
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byte = f.read(1)
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except IOError, e:
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print e
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sys.exit(10)
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except EOFError, e:
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print e
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sys.exit(11)
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offset += 1
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if len(byte) > 0:
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val = struct.unpack("B", byte)
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return val[0]
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else:
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return 0
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def readword(f):
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return (readbyte(f) << 8) + readbyte(f)
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def skipzeros(f):
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while True:
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val = readbyte(f)
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if val > 0:
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return val
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if __name__ == "__main__":
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themem = ptpimport("keybrd.ptp")
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addrlist = themem.keys()
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addrlist.sort()
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for addr in addrlist:
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(word, cycle, type, lab, ref) = mymem[addr]
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print "%s %s: %05o" % (addr, type, word)
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