def execute_cmn(s, inst):
if condition_passed(s, inst.cond()):
a, (b, _) = s.rf[inst.rn()], shifter_operand(s, inst)
result = a + b
s.N = (result >> 31) & 1
s.Z = trim_32(result) == 0
s.C = carry_from(result)
s.V = overflow_from_add(a, b, result)
if inst.rd() == 15:
return
s.rf[PC] = s.fetch_pc() + 4
def execute_cmn( s, inst ):
if condition_passed( s, inst.cond ):
a, (b, _) = s.rf[ inst.rn ], shifter_operand( s, inst )
result = a + b
s.N = (result >> 31)&1
s.Z = trim_32( result ) == 0
s.C = carry_from( result )
s.V = overflow_from_add( a, b, result )
if inst.rd == 15:
return
s.rf[PC] = s.fetch_pc() + 4
def execute_add(s, inst):
if condition_passed(s, inst.cond):
a, (b, _) = s.rf[inst.rn], shifter_operand(s, inst)
result = a + b
s.rf[inst.rd] = trim_32(result)
if inst.S:
if inst.rd == 15: raise FatalError('Writing SPSR not implemented!')
s.N = (result >> 31) & 1
s.Z = trim_32(result) == 0
s.C = carry_from(result)
s.V = overflow_from_add(a, b, result)
if inst.rd == 15:
return
s.rf[PC] = s.fetch_pc() + 4
def execute_add( s, inst ):
if condition_passed( s, inst.cond ):
a, (b, _) = s.rf[ inst.rn ], shifter_operand( s, inst )
result = a + b
s.rf[ inst.rd ] = trim_32( result )
if inst.S:
if inst.rd == 15: raise FatalError('Writing SPSR not implemented!')
s.N = (result >> 31)&1
s.Z = trim_32( result ) == 0
s.C = carry_from( result )
s.V = overflow_from_add( a, b, result )
if inst.rd == 15:
return
s.rf[PC] = s.fetch_pc() + 4
