113 lines
4.4 KiB
Ruby
113 lines
4.4 KiB
Ruby
#integer related kernel functions
|
|
module Risc
|
|
module Builtin
|
|
module Integer
|
|
module ClassMethods
|
|
include CompileHelper
|
|
|
|
def mod4(context)
|
|
source = "mod4"
|
|
compiler = compiler_for(:Integer,:mod4 ,{})
|
|
me = compiler.add_known( :receiver )
|
|
compiler.reduce_int( source , me )
|
|
two = compiler.use_reg :fixnum , 2
|
|
compiler.add_load_data( source , 2 , two )
|
|
compiler.add_code Risc.op( source , :>> , me , two)
|
|
compiler.add_new_int(source,me , two)
|
|
compiler.add_reg_to_slot( source , two , :message , :return_value)
|
|
compiler.add_mom( Mom::ReturnSequence.new)
|
|
return compiler.method
|
|
end
|
|
def putint(context)
|
|
compiler = compiler_for(:Integer,:putint ,{})
|
|
compiler.add_mom( Mom::ReturnSequence.new)
|
|
return compiler.method
|
|
end
|
|
def *( context )
|
|
operator_method( "mult" , :*)
|
|
end
|
|
def +( context )
|
|
operator_method( "plus" , :+)
|
|
end
|
|
def -( context )
|
|
operator_method( "minus" , :-)
|
|
end
|
|
def operator_method(op_name , op_sym )
|
|
compiler = compiler_for(:Integer, op_sym ,{other: :Integer})
|
|
me , other = compiler.self_and_int_arg(op_name + "load receiver and arg")
|
|
compiler.reduce_int( op_name + " fix me", me )
|
|
compiler.reduce_int( op_name + " fix arg", other )
|
|
compiler.add_code Risc.op( op_name + " operator", op_sym , me , other)
|
|
compiler.add_new_int(op_name + " new int", me , other)
|
|
compiler.add_reg_to_slot( op_name + "save ret" , other , :message , :return_value)
|
|
compiler.add_mom( Mom::ReturnSequence.new)
|
|
return compiler.method
|
|
end
|
|
def div10( context )
|
|
s = "div_10 "
|
|
compiler = compiler_for(:Integer,:div10 ,{})
|
|
#FIX: this could load receiver once, reduce and then transfer twice
|
|
me = compiler.add_known( :receiver )
|
|
tmp = compiler.add_known( :receiver )
|
|
q = compiler.add_known( :receiver )
|
|
compiler.reduce_int( s , me )
|
|
compiler.reduce_int( s , tmp )
|
|
compiler.reduce_int( s , q )
|
|
const = compiler.use_reg :fixnum , 1
|
|
compiler.add_load_data( s , 1 , const )
|
|
# int tmp = self >> 1
|
|
compiler.add_code Risc.op( s , :>> , tmp , const)
|
|
# int q = self >> 2
|
|
compiler.add_load_data( s , 2 , const)
|
|
compiler.add_code Risc.op( s , :>> , q , const)
|
|
# q = q + tmp
|
|
compiler.add_code Risc.op( s , :+ , q , tmp )
|
|
# tmp = q >> 4
|
|
compiler.add_load_data( s , 4 , const)
|
|
compiler.add_transfer( s, q , tmp)
|
|
compiler.add_code Risc.op( s , :>> , tmp , const)
|
|
# q = q + tmp
|
|
compiler.add_code Risc.op( s , :+ , q , tmp )
|
|
# tmp = q >> 8
|
|
compiler.add_load_data( s , 8 , const)
|
|
compiler.add_transfer( s, q , tmp)
|
|
compiler.add_code Risc.op( s , :>> , tmp , const)
|
|
# q = q + tmp
|
|
compiler.add_code Risc.op( s , :+ , q , tmp )
|
|
# tmp = q >> 16
|
|
compiler.add_load_data( s , 16 , const)
|
|
compiler.add_transfer( s, q , tmp)
|
|
compiler.add_code Risc.op( s , :>> , tmp , const)
|
|
# q = q + tmp
|
|
compiler.add_code Risc.op( s , :+ , q , tmp )
|
|
# q = q >> 3
|
|
compiler.add_load_data( s , 3 , const)
|
|
compiler.add_code Risc.op( s , :>> , q , const)
|
|
# tmp = q * 10
|
|
compiler.add_load_data( s , 10 , const)
|
|
compiler.add_transfer( s, q , tmp)
|
|
compiler.add_code Risc.op( s , :* , tmp , const)
|
|
# tmp = self - tmp
|
|
compiler.add_code Risc.op( s , :- , me , tmp )
|
|
compiler.add_transfer( s , me , tmp)
|
|
# tmp = tmp + 6
|
|
compiler.add_load_data( s , 6 , const)
|
|
compiler.add_code Risc.op( s , :+ , tmp , const )
|
|
# tmp = tmp >> 4
|
|
compiler.add_load_data( s , 4 , const)
|
|
compiler.add_code Risc.op( s , :>> , tmp , const )
|
|
# return q + tmp
|
|
compiler.add_code Risc.op( s , :+ , q , tmp )
|
|
|
|
compiler.add_new_int(s,q , tmp)
|
|
compiler.add_reg_to_slot( s , tmp , :message , :return_value)
|
|
|
|
compiler.add_mom( Mom::ReturnSequence.new)
|
|
return compiler.method
|
|
end
|
|
end
|
|
extend ClassMethods
|
|
end
|
|
end
|
|
end
|