37461a1727
now a variable has to be created before being used thus it is save to develop contracts where a certain name must exist in the scope Maybe the syntax starts getting a bit weird, but at least the ! is a common symbol in ruby
69 lines
2.5 KiB
Ruby
69 lines
2.5 KiB
Ruby
module Risc
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module Builtin
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module Word
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module ClassMethods
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include CompileHelper
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# wrapper for the syscall
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# io/file currently hardcoded to stdout
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# set up registers for syscall, ie
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# - pointer in r1
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# - length in r2
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# - emit_syscall (which does the return of an integer, see there)
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def putstring( context)
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compiler = compiler_for(:Word , :putstring ,{})
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builder = compiler.compiler_builder(compiler.source)
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new_message = Risc.message_reg.get_new_left(:receiver , compiler)
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builder.add_slot_to_reg( "putstring" , Risc.message_reg , :receiver , new_message )
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index = Parfait::Word.get_length_index
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index_reg = RegisterValue.new(:r2 , :Integer)
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builder.add_slot_to_reg( "putstring" , new_message , index , index_reg )
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Risc::Builtin::Object.emit_syscall( builder , :putstring )
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compiler.add_mom( Mom::ReturnSequence.new)
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compiler
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end
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# self[index] basically. Index is the first arg > 0
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# return a word sized new int, in return_value
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def get_internal_byte( context)
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compiler = compiler_for(:Word , :get_internal_byte , {at: :Integer})
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compiler.compiler_builder(compiler.source).build do
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object! << message[:receiver]
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integer! << message[:arguments]
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integer << integer[1]
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integer.reduce_int
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object <= object[integer]
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add_new_int("get_internal_byte", object , integer)
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message[:return_value] << integer
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end
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compiler.add_mom( Mom::ReturnSequence.new)
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return compiler
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end
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# self[index] = val basically. Index is the first arg ( >0),
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# value the second
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# return value
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def set_internal_byte( context )
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compiler = compiler_for(:Word, :set_internal_byte , {at: :Integer , :value => :Integer} )
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compiler.compiler_builder(compiler.source).build do
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word! << message[:receiver]
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integer! << message[:arguments]
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integer << integer[1]
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integer_reg! << message[:arguments]
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integer_obj! << integer_reg[2]
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integer_reg << integer_reg[2]
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integer.reduce_int
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integer_reg.reduce_int
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word[integer] <= integer_reg
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message[:return_value] << integer_obj
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end
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compiler.add_mom( Mom::ReturnSequence.new)
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return compiler
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end
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end
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extend ClassMethods
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end
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end
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end
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