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fix the handcoded fibonacci (registers again)

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Torsten Ruger
2014-05-25 13:34:06 +03:00
parent 5afa6f4239
commit 1f17262887
2 changed files with 18 additions and 20 deletions
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19
lib/core/kernel.rb
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@ -74,16 +74,15 @@ module Core
return utoa_function
end
# testing method, hand coded fibo, expects arg in 1 , so pass 2 in, first bogy
# result comes in 0
# testing method, hand coded fibo, expects arg in 1
# result comes in 7
# a hand coded version of the fibonachi numbers
# not my hand off course, found in the net from a basic introduction
def fibo context
fibo_function = Vm::Function.new(:fibo , [Vm::Integer , Vm::Integer] , Vm::Integer )
result = fibo_function.args[0]
int = fibo_function.args[1]
fibo_function = Vm::Function.new(:fibo , [Vm::Integer] , Vm::Integer )
result = Vm::Integer.new(7)
int = fibo_function.args[0]
count = fibo_function.new_local
loop_block = Vm::Block.new("loop", nil)
f1 = fibo_function.new_local
f2 = fibo_function.new_local
b = fibo_function.body.scope binding
@ -96,14 +95,14 @@ module Core
b.f2 = 0
b.count = int - 2
b.add_code loop_block
l = loop_block.scope binding
l = fibo_function.body.new_block("loop").scope binding
l.f1 = f1 + f2
l.f2 = f1 - f2
l.count = (count - 1).set_update_status
l.bpl( loop_block )
l.result = f1
l.bpl( l )
l.mov( result , f1 )
fibo_function.set_return result
l.pop [ count , f1 , f2 , :pc]
fibo_function
end