def ExpandMacro():
global Asm, Flags
while len(dec.Asm.Macro_Stack) > 0:
stackindex = len(dec.Asm.Macro_Stack) - 1
macroname = dec.Asm.Macro_Stack[stackindex][0]
macroline = dec.Asm.Macro_Stack[stackindex][1]
parameters = dec.Asm.Macro_Stack[stackindex][3]
if macroline < len(dec.Asm.Macro[macroname]):
# This macro still has at least one line left to be parsed
dec.Asm.Parse_Line = dec.Asm.Macro[macroname][macroline]
macroline = macroline + 1
dec.Asm.Macro_Stack[stackindex][1] = macroline
ExpandParameters(parameters)
assem.ParseLine()
listing.ListLine(macroline, dec.Asm.Parse_Line)
if dec.Flags.EndFile:
# .EN directive was encountered, close all macro expansions
# and the most recent source file
dec.Asm.Macro_Stack = []
dec.Asm.Local_Index = 0
# leave flag True, has to break out of while in assem.Assemble
if dec.Flags.ExitMacro:
# .XM directive wants to exit this macro
dec.Flags.ExitMacro = False
dec.Asm.Local_Index = dec.Asm.Macro_Stack[stackindex][2]
dec.Asm.Macro_Stack.pop()
else:
# End of this macro, pull it off the stack
dec.Asm.Local_Index = dec.Asm.Macro_Stack[stackindex][2]
dec.Asm.Macro_Stack.pop()
def Assemble(sourcename):
"""
Entry point for both assembly passes. Initialize symbol table, open main
source file and parse each program line.
"""
global Asm, Flags
Prepare_For_Pass()
print("")
if dec.Asm.Pass == 1:
print("Pass one")
else:
print("Pass two")
files.OpenSourceFile(sourcename) # Open main source file
dec.Flags.CodeWarn = False
while len(dec.Asm.File_Handle) > 0:
# Do this until all source files are closed again
dec.Flags.Comment = False
dec.Asm.Macro_Def = ''
while True:
# Parse each line until end of file
if len(dec.Asm.Macro_Stack) > 0:
# Expanding macros, stay there until done
macros.ExpandMacro()
if dec.Flags.EndFile:
# Macro expansion found .EN directive
dec.Flags.EndFile = False
break
# Normal assembly, get next line from source and parse it
index = len(dec.Asm.File_Handle) - 1
dec.Asm.Parse_Line = dec.Asm.File_Handle[index].readline()
dec.Asm.File_LineNo[index] = dec.Asm.File_LineNo[index] + 1
lastline = dec.Asm.File_LineNo[index]
# Save this, may change by .CH
lineno = dec.Asm.File_LineNo[index]
if len(dec.Asm.Parse_Line) > 0:
# Not end of file
# Now expand tabs, get rid of eol, truncate the line to a
# sensible length and append trailing space.
# This trailing space will ease parsing the string.
# Windows tends to crash when the line length > 184
dec.Asm.Parse_Line = \
dec.Asm.Parse_Line.expandtabs(8).rstrip() + " "
ParseLine() # Parse this source line
listing.ListLine(lineno, dec.Asm.Parse_Line)
if dec.Flags.EndFile:
# .EN directive was encountered, close this file
dec.Flags.EndFile = False
break
else:
# End of file reached
break
# Close youngest source file in source stack
dec.Asm.File_Handle[len(dec.Asm.File_Handle) - 1].close()
dec.Asm.File_Handle.pop()
dec.Asm.File_LineNo.pop()
dec.Asm.File_Name.pop()
# We may need this in case of errors during cleanup
dec.Asm.File_Name.append(sourcename)
dec.Asm.File_LineNo.append(lastline)
if dec.Cross.Name != "":
# Allow the cross overlay to do some final house keeping
dec.Cross.CleanUp()
target.CloseTarget(0) # Close code memory buffer
target.CloseTarget(2) # Close EEPROM memory buffer
dec.Asm.File_Name = [] # We won't need this anymore now
dec.Asm.File_LineNo = []
files.SymbolFile()
files.CloseAllFiles()