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add integer minus

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rework plus to make that easy
This commit is contained in:
Torsten Ruger
2018-04-01 15:26:53 +03:00
parent 972cf47c8b
commit b1376e83bd
5 changed files with 74 additions and 15 deletions
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26
lib/risc/builtin/integer.rb
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@ -13,7 +13,7 @@ module Risc
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(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
@ -23,16 +23,20 @@ module Risc
compiler.add_mom( Mom::ReturnSequence.new)
return compiler.method
end
def +( context )
source = "plus"
compiler = compiler_for(:Integer,:+ ,{other: :Integer})
me , other = compiler.self_and_int_arg(source + "1")
compiler.reduce_int( source + "2", me )
compiler.reduce_int( source + "3", other )
compiler.add_code Risc.op( source + "4", :+ , me , other)
compiler.add_new_int(me , other)
compiler.add_reg_to_slot( source + "5" , other , :message , :return_value)
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
@ -92,7 +96,7 @@ module Risc
# return q + tmp
compiler.add_code Risc.op( s , :+ , q , tmp )
compiler.add_new_int(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)