def AccessVariableByName(name, compound, local_vars, global_vars):
# returns None if Variable wasn't found
# if found returns a Dictionary with ['Assembly'] to load the Variable's Address into r15
# and ['Variable'] contains the Variable
assembly = Assembly()
v = GetFirstVariable(name, compound, local_vars)
if v is not None:
# variable lokal
assembly.AppendInstruction(
Instruction('MOV', ['r15', 'r1'], 'calculate Adress of'))
i = 0
while v.Offset - i * 32 > 32:
i = i + 1
assembly.AppendInstruction(
Instruction('ADDI', ['r15', str(32)], "... "))
if v.Offset - i * 32 > 0:
assembly.AppendInstruction(
Instruction('ADDI', ['r15', str(v.Offset - i * 32)],
v.Name + " in Compound " + str(v.compound)))
return {'Assembly': assembly, 'Variable': v}
v = GetFirstVariableByNameOnly(name, global_vars)
if v is not None:
# variable global
assembly.AppendInstruction(
Instruction('LUI', ['r23', v.Name], 'Address'))
assembly.AppendInstruction(
Instruction('LLI', ['r23', v.Name], 'of Var'))
assembly.AppendInstruction(
Instruction('MOV', ['r15', 'r23'], 'mov to expected Register'))
return {'Assembly': assembly, 'Variable': v}
return None
def processFloatingPoint(operation, coordinates):
"""creates Assembly for all the different Binary Operations (+,-,*,...)
using floatingPoint Data and therefore instructions
Source Registers f1, f2
Destination Register f0
f0 = f1 - f2"""
assem = Assembly()
if operation == '+':
assem.AppendInstruction(
Instruction('ADD', ['f0', 'f2'], 'add source B'))
elif operation == '-':
assem.AppendInstruction(
Instruction('SUB', ['f0', 'f2'], 'sub source B'))
elif operation == '*':
assem.AppendInstruction(
Instruction('MUL', ['f0', 'f2'], 'mul source B'))
elif operation == '/':
assem.AppendInstruction(
Instruction('DIV', ['f0', 'f2'], 'div by source B'))
else:
return None
return assem
def GetAssemblyForSpecific(self, el):
ret = Assembly()
ret.AppendLabel(Label(el.Name))
ret.AppendInstruction(
Instruction('DATA', [el.Init], el.Type.Name + ' ' + el.Name))
return ret
def processFixedPoint(operation, coordinates):
"""creates Assembly for all the different Binary Operations (+,-,*,...)
using fixedPoint Data and therefore instructions
Source Registers r10, r12
Destination Register r10
r10 = r10 - r12"""
assem = Assembly()
if operation == '+':
assem.AppendInstruction(
Instruction('ADD', ['r10', 'r12'], 'add source B'))
elif operation == '-':
assem.AppendInstruction(
Instruction('SUB', ['r10', 'r12'], 'sub source B'))
elif operation == '*':
assem.AppendInstruction(
Instruction('MUL', ['r10', 'r12'], 'mul source B'))
elif operation == '/':
assem.AppendInstruction(
Instruction('DIV', ['r10', 'r12'], 'div by source B'))
elif operation == '%':
assem.AppendInstruction(
Instruction('MOD', ['r10', 'r12'], 'mod by source B'))
elif operation == '&':
assem.AppendInstruction(
Instruction('AND', ['r10', 'r12'], 'bitwise and source B'))
elif operation == '|':
assem.AppendInstruction(
Instruction('OR', ['r10', 'r12'], 'bitwise or source B'))
elif operation == '^':
assem.AppendInstruction(Instruction('MOV', ['r11', 'r12'], 'B'))
assem.AppendInstruction(Instruction('NOT', ['r11'], 'not B'))
assem.AppendInstruction(
Instruction('AND', ['r11', 'r10'], 'A and not B'))
assem.AppendInstruction(Instruction('NOT', ['r10'], 'not A'))
assem.AppendInstruction(
Instruction('AND', ['r10', 'r12'], 'not A and B'))
assem.AppendInstruction(
Instruction('OR', ['r10', 'r11'], 'bitwise xor source B'))
elif operation == '!=':
assem.AppendInstruction(
Instruction('SUB', ['r10', 'r12'], 'if A == B ==> r10 == 0'))
assem.AppendInstruction(
Instruction(
'BZ', ['r10', Label.FromCoord(coordinates, 'one').Name],
'creating a logical not'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = TRUE'))
assem.AppendInstruction(Instruction('ADDI', ['r10', '1'], ''))
assem.AppendInstruction(
Instruction('BZ',
['r0', Label.FromCoord(coordinates, 'end').Name],
'done'))
assem.AppendLabel(Label.FromCoord(coordinates, 'one'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = FALSE'))
assem.AppendLabel(Label.FromCoord(coordinates, 'end'))
elif operation == '==':
assem.AppendInstruction(
Instruction('SUB', ['r10', 'r12'], 'if A == B ==> r10 == 0'))
assem.AppendInstruction(
Instruction(
'BZ', ['r10', Label.FromCoord(coordinates, 'one').Name],
'creating a logical not'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = FALSE'))
assem.AppendInstruction(
Instruction('BZ',
['r0', Label.FromCoord(coordinates, 'end').Name],
'done'))
assem.AppendLabel(Label.FromCoord(coordinates, 'one'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = TRUE'))
assem.AppendInstruction(Instruction('ADDI', ['r10', '1'], ''))
assem.AppendLabel(Label.FromCoord(coordinates, 'end'))
elif operation == '<':
assem.AppendInstruction(
Instruction('SUB', ['r12', 'r10'], 'if A < B ==> r12 > 0'))
assem.AppendInstruction(
Instruction(
'BPOS',
['r12', Label.FromCoord(coordinates, 'one').Name],
'comparing with zero'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = FALSE'))
assem.AppendInstruction(
Instruction('BZ',
['r0', Label.FromCoord(coordinates, 'end').Name],
'done'))
assem.AppendLabel(Label.FromCoord(coordinates, 'one'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = TRUE'))
assem.AppendInstruction(Instruction('ADDI', ['r10', '1'], ''))
assem.AppendLabel(Label.FromCoord(coordinates, 'end'))
elif operation == '>':
assem.AppendInstruction(
Instruction('SUB', ['r10', 'r12'], 'if A > B ==> r10 > 0'))
assem.AppendInstruction(
Instruction(
'BPOS',
['r10', Label.FromCoord(coordinates, 'one').Name],
'comparing with zero'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = FALSE'))
assem.AppendInstruction(
Instruction('BZ',
['r0', Label.FromCoord(coordinates, 'end').Name],
'done'))
assem.AppendLabel(Label.FromCoord(coordinates, 'one'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = TRUE'))
assem.AppendInstruction(Instruction('ADDI', ['r10', '1'], ''))
assem.AppendLabel(Label.FromCoord(coordinates, 'end'))
elif operation == '<=':
assem.AppendInstruction(
Instruction('SUB', ['r12', 'r10'], 'if A =< B ==> r12 >= 0'))
assem.AppendInstruction(
Instruction(
'BPOS',
['r12', Label.FromCoord(coordinates, 'one').Name],
'comparing with zero'))
assem.AppendInstruction(
Instruction(
'BZ', ['r12', Label.FromCoord(coordinates, 'one').Name],
'comparing with zero'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = FALSE'))
assem.AppendInstruction(
Instruction('BZ',
['r0', Label.FromCoord(coordinates, 'end').Name],
'done'))
assem.AppendLabel(Label.FromCoord(coordinates, 'one'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = TRUE'))
assem.AppendInstruction(Instruction('ADDI', ['r10', '1'], ''))
assem.AppendLabel(Label.FromCoord(coordinates, 'end'))
elif operation == '>=':
assem.AppendInstruction(
Instruction('SUB', ['r10', 'r12'], 'if A >= B ==> r10 >= 0'))
assem.AppendInstruction(
Instruction(
'BPOS',
['r10', Label.FromCoord(coordinates, 'one').Name],
'comparing with zero'))
assem.AppendInstruction(
Instruction(
'BZ', ['r10', Label.FromCoord(coordinates, 'one').Name],
'comparing with zero'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = FALSE'))
assem.AppendInstruction(
Instruction('BZ',
['r0', Label.FromCoord(coordinates, 'end').Name],
'done'))
assem.AppendLabel(Label.FromCoord(coordinates, 'one'))
assem.AppendInstruction(
Instruction('MOV', ['r10', 'r0'], 'result = TRUE'))
assem.AppendInstruction(Instruction('ADDI', ['r10', '1'], ''))
assem.AppendLabel(Label.FromCoord(coordinates, 'end'))
elif operation == '<<':
assem.AppendInstruction(
Instruction(
'SLO', ['r10', 'r12'],
'Arithmetic-shift the value in R10 by the value in R12 to the left and store the result in R10'
))
elif operation == '>>':
assem.AppendInstruction(
Instruction(
'SLOR', ['r10', 'r12'],
'Arithmetic-shift the value in R10 by the value in R12 to the right and store the result in R10'
))
else:
return None
return assem