def transformToAsm(self, containingFunction, containingLoop):
for instruction in self.left.transformToAsm(containingFunction, containingLoop):
yield instruction
for instruction in self.right.transformToAsm(containingFunction, containingLoop):
yield instruction
yield Asm('comment', '<')
carrylabel = nextlabel('lt_carry')
endlabel = nextlabel('lt_end')
yield Asm('POP direct', 0) # left
yield Asm('POP direct', 'ACC') # right
yield Asm('CLR C')
yield Asm('SUBB A,Rn', 0) # left - right
yield Asm('JC rel', carrylabel)
yield Asm('CLR bit', 'ACC', 0)
yield Asm('SJMP rel', endlabel)
yield Asm('label', carrylabel)
yield Asm('SETB bit', 'ACC', 0)
yield Asm('label', endlabel)
yield Asm('PUSH direct', 'ACC')
def transformToAsm(self, containingFunction, containingLoop):
for instruction in self.predicate.transformToAsm(containingFunction, containingLoop):
yield instruction
yield Asm('comment', 'if')
thenlabel = nextlabel('if_then')
jnbelselabel = nextlabel('if_jnbelse')
elselabel = nextlabel('if_else')
endlabel = nextlabel('if_end')
yield Asm('POP direct', 'ACC')
yield Asm('JNB bit,rel', 'ACC', 0, jnbelselabel)
yield Asm('SJMP rel', thenlabel)
yield Asm('label', jnbelselabel)
yield Asm('LJMP addr16', elselabel)
yield Asm('label', thenlabel)
for instruction in self.then.transformToAsm(containingFunction, containingLoop):
yield instruction
yield Asm('LJMP addr16', endlabel)
yield Asm('label', elselabel)
for instruction in self.else_.transformToAsm(containingFunction, containingLoop):
yield instruction
yield Asm('label', endlabel)
def transformToAsm(self, containingFunction, containingLoop):
self.startlabel = nextlabel('while_start')
self.endlabel = nextlabel('while_end')
self.jnbcontinuelabel = nextlabel('while_jnbcontinue')
self.jnbendlabel = nextlabel('while_jnbendlabel')
yield Asm('comment', 'while')
yield Asm('label', self.startlabel)
for instruction in self.condition.transformToAsm(containingFunction, self):
yield instruction
yield Asm('POP direct', 'ACC')
yield Asm('JNB bit,rel', 'ACC', 0, self.jnbendlabel)
yield Asm('SJMP rel', self.jnbcontinuelabel)
yield Asm('label', self.jnbendlabel)
yield Asm('LJMP addr16', self.endlabel)
yield Asm('label', self.jnbcontinuelabel)
for instruction in self.body.transformToAsm(containingFunction, self):
yield instruction
yield Asm('LJMP addr16', self.startlabel)
yield Asm('label', self.endlabel)
def transformToAsm(self, containingFunction, containingLoop):
self.startlabel = nextlabel('loop_start')
self.endlabel = nextlabel('loop_end')
yield Asm('comment', 'loop')
yield Asm('label', self.startlabel)
for instruction in self.body.transformToAsm(containingFunction, self):
yield instruction
yield Asm('LJMP addr16', self.startlabel)
yield Asm('label', self.endlabel)
def transformToAsm(self, containingFunction, containingLoop):
for instruction in self.left.transformToAsm(containingFunction, containingLoop):
yield instruction
for instruction in self.right.transformToAsm(containingFunction, containingLoop):
yield instruction
yield Asm('POP direct', 'ACC')
yield Asm('POP direct', 0)
yield Asm('comment', '!=')
notequallabel = nextlabel('neq_notequal')
endlabel = nextlabel('neq_end')
yield Asm('CJNE A,direct,rel', 0, notequallabel)
yield Asm('CLR bit', 'ACC', 0)
yield Asm('SJMP rel', endlabel)
yield Asm('label', notequallabel)
yield Asm('SETB bit', 'ACC', 0)
yield Asm('label', endlabel)
yield Asm('PUSH direct', 'ACC')
def transformToAsm(self, containingFunction, containingLoop):
self.startlabel = nextlabel('repeat_start')
self.endlabel = nextlabel('repeat_end')
self.djnzrepeatlabel = nextlabel('repeat_djnzrepeat')
yield Asm('comment', 'repeat')
# save the current repeat counter
yield Asm('PUSH direct', 1)
# get the new repeat counter
for instruction in self.repeatcount.transformToAsm(containingFunction, containingLoop):
yield instruction
yield Asm('POP direct', 1)
# don't execute if the counter is 0
yield Asm('CJNE Rn,#data,rel', 1, 0, self.startlabel)
yield Asm('LJMP addr16', self.endlabel)
# loop
yield Asm('label', self.startlabel)
for instruction in self.body.transformToAsm(containingFunction, self):
yield instruction
yield Asm('DJNZ Rn,rel', 1, self.djnzrepeatlabel)
yield Asm('SJMP rel', self.endlabel)
yield Asm('label', self.djnzrepeatlabel)
yield Asm('LJMP addr16', self.startlabel)
yield Asm('label', self.endlabel)
# restore the old repeat counter
yield Asm('POP direct', 1)
