rename risc_value to register_value
almost to register, but it still carries that value
This commit is contained in:
parent
606c7bf906
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d50893bb0f
@ -60,7 +60,7 @@ module Arm
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end
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def reg_code r_name
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raise "double r #{r_name}" if( :rr1 == r_name)
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if r_name.is_a? ::Risc::RiscValue
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if r_name.is_a? ::Risc::RegisterValue
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r_name = r_name.symbol
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end
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if r_name.is_a? Fixnum
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@ -93,7 +93,7 @@ module Arm
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end
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end
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Risc::RiscValue.class_eval do
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Risc::RegisterValue.class_eval do
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def reg_no
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@symbol.to_s[1 .. -1].to_i
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end
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@ -18,19 +18,19 @@ module Arm
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rn , operand , immediate= @rn , @operand , 1
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arg = @right
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operand = Risc::RiscValue.new( arg , :Integer) if( arg.is_a? Symbol )
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operand = Risc::RegisterValue.new( arg , :Integer) if( arg.is_a? Symbol )
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case operand
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when Numeric
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operand = arg
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raise "numeric literal operand to large #{arg.inspect}" unless (arg.fits_u8?)
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when Symbol , ::Risc::RiscValue
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when Symbol , ::Risc::RegisterValue
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immediate = 0
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when Arm::Shift
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handle_shift
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else
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raise "invalid operand argument #{arg.inspect} , #{inspect}"
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end
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val = (operand.is_a?(Symbol) or operand.is_a?(::Risc::RiscValue)) ? reg_code(operand) : operand
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val = (operand.is_a?(Symbol) or operand.is_a?(::Risc::RegisterValue)) ? reg_code(operand) : operand
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val = 0 if val == nil
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val = shift(val , 0)
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raise inspect unless reg_code(@rd)
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@ -24,7 +24,7 @@ module Arm
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if (right.is_a?(Numeric))
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operand = handle_numeric(right)
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elsif (right.is_a?(Symbol) or right.is_a?(::Risc::RiscValue))
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elsif (right.is_a?(Symbol) or right.is_a?(::Risc::RegisterValue))
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operand = reg_code(right) #integer means the register the integer is in (otherwise constant)
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immediate = 0 # ie not immediate is register
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else
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@ -89,7 +89,7 @@ module Arm
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# this also loads constants, which are issued as pc relative adds
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def determine_operands
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if( @left.is_a?(Parfait::Object) or @left.is_a?(Risc::Label) or
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(@left.is_a?(Symbol) and !Risc::RiscValue.look_like_reg(@left)))
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(@left.is_a?(Symbol) and !Risc::RegisterValue.look_like_reg(@left)))
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left = @left
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left = left.address if left.is_a?(Risc::Label)
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# do pc relative addressing with the difference to the instuction
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@ -24,8 +24,8 @@ module Arm
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#TODO better test, this operand integer (register) does not work.
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def assemble(io)
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arg = @left
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arg = arg.symbol if( arg.is_a? ::Risc::RiscValue )
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is_reg = arg.is_a?(::Risc::RiscValue)
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arg = arg.symbol if( arg.is_a? ::Risc::RegisterValue )
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is_reg = arg.is_a?(::Risc::RegisterValue)
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is_reg = (arg.to_s[0] == "r") if( arg.is_a?(Symbol) and not is_reg)
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raise "invalid operand argument #{arg.inspect} #{inspect}" unless (is_reg )
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@ -34,7 +34,7 @@ module Arm
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#not sure about these 2 constants. They produce the correct output for str r0 , r1
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# but i can't help thinking that that is because they are not used in that instruction and
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# so it doesn't matter. Will see
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if (operand.is_a?(Symbol) or operand.is_a?(::Risc::RiscValue))
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if (operand.is_a?(Symbol) or operand.is_a?(::Risc::RegisterValue))
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val = reg_code(operand)
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i = 1 # not quite sure about this, but it gives the output of as. read read read.
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else
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@ -66,7 +66,7 @@ module Arm
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def get_operand
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return @operand unless @right
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operand = @right
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operand = operand.symbol if operand.is_a? ::Risc::RiscValue
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operand = operand.symbol if operand.is_a? ::Risc::RegisterValue
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unless( operand.is_a? Symbol)
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# TODO test/check/understand: has no effect in current tests
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# add_offset = (operand < 0) ? 0 : 1
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@ -4,8 +4,8 @@ module Arm
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def initialize( to , from , options = {})
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super(nil)
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@attributes = options
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if( from.is_a?(Symbol) and Risc::RiscValue.look_like_reg(from) )
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from = Risc::RiscValue.new(from , :Integer)
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if( from.is_a?(Symbol) and Risc::RegisterValue.look_like_reg(from) )
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from = Risc::RegisterValue.new(from , :Integer)
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end
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@from = from
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@to = to
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@ -28,7 +28,7 @@ module Arm
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case right
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when Numeric
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operand = numeric_operand(right)
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when Risc::RiscValue
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when Risc::RegisterValue
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operand = reg_code(right)
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immediate = 0 # ie not immediate is register
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else
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@ -35,7 +35,7 @@ end
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require_relative "risc/instruction"
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require_relative "risc/risc_value"
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require_relative "risc/register_value"
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require_relative "risc/text_writer"
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require_relative "risc/builtin"
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require_relative "risc/builder"
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@ -162,7 +162,7 @@ module Risc
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# by the slots. All data (at any time) is in one of the instance variables of these two
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# objects. Risc defines module methods with the same names (and _reg)
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def self.resolve_to_register( reference )
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return reference if reference.is_a?(RiscValue)
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return reference if reference.is_a?(RegisterValue)
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case reference
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when :message
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return message_reg
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@ -175,7 +175,7 @@ module Risc
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# The first arg is a class name (possibly lowercase) and the second an instance variable name.
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def self.resolve_type( object , compiler )
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object = object.type if object.is_a?(RiscValue)
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object = object.type if object.is_a?(RegisterValue)
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case object
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when :name
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type = Parfait.object_space.get_class_by_name( :Word ).instance_type
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@ -206,7 +206,7 @@ module Risc
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# The class can be mapped to a register, and so we get a memory address (reg+index)
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# Third arg, compiler, is only needed to resolve receiver/arguments/frame
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def self.resolve_to_index(object , variable_name ,compiler = nil)
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return variable_name if variable_name.is_a?(Integer) or variable_name.is_a?(RiscValue)
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return variable_name if variable_name.is_a?(Integer) or variable_name.is_a?(RegisterValue)
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type = resolve_type(object , compiler)
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index = type.variable_index(variable_name)
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raise "Index not found for #{variable_name} in #{object} of type #{type}" unless index
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@ -104,12 +104,12 @@ module Risc
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# This relies on linux to save and restore all registers
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#
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def save_message(builder)
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r8 = RiscValue.new( :r8 , :Message)
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r8 = RegisterValue.new( :r8 , :Message)
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builder.add_code Risc.transfer("save_message", Risc.message_reg , r8 )
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end
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def restore_message(builder)
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r8 = RiscValue.new( :r8 , :Message)
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r8 = RegisterValue.new( :r8 , :Message)
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return_tmp = builder.compiler.use_reg :fixnum
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source = "_restore_message"
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# get the sys return out of the way
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@ -9,7 +9,7 @@ module Risc
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builder = compiler.builder(true, compiler.method)
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builder.add_slot_to_reg( "putstring" , :message , :receiver , :new_message )
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index = Parfait::Word.get_length_index
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reg = RiscValue.new(:r2 , :Integer)
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reg = RegisterValue.new(:r2 , :Integer)
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builder.add_slot_to_reg( "putstring" , :new_message , 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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@ -7,7 +7,7 @@ module Risc
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def initialize( source , register )
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super(source)
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@register = register
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raise "Not register #{register}" unless RiscValue.look_like_reg(register)
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raise "Not register #{register}" unless RegisterValue.look_like_reg(register)
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end
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attr_reader :register
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@ -23,9 +23,9 @@ module Risc
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@index = index
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@register = register
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raise "index #{index}" if index.is_a?(Numeric) and index < 0
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raise "Not integer or reg #{index}" unless index.is_a?(Numeric) or RiscValue.look_like_reg(index)
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raise "Not register #{register}" unless RiscValue.look_like_reg(register)
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raise "Not register #{array}" unless RiscValue.look_like_reg(array)
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raise "Not integer or reg #{index}" unless index.is_a?(Numeric) or RegisterValue.look_like_reg(index)
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raise "Not register #{register}" unless RegisterValue.look_like_reg(register)
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raise "Not register #{array}" unless RegisterValue.look_like_reg(array)
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end
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attr_accessor :array , :index , :register
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@ -10,7 +10,7 @@ module Risc
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@register = register
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@constant = constant
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raise "Not Constant #{constant}" if constant.is_a?(Mom::SlotDefinition)
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raise "Not register #{register}" unless RiscValue.look_like_reg(register)
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raise "Not register #{register}" unless RegisterValue.look_like_reg(register)
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end
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attr_accessor :register , :constant
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@ -13,7 +13,7 @@ module Risc
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@register = register
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@constant = constant
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raise "Not Integer #{constant}" unless constant.is_a?(Integer)
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raise "Not register #{register}" unless RiscValue.look_like_reg(register)
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raise "Not register #{register}" unless RegisterValue.look_like_reg(register)
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end
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attr_accessor :register , :constant
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@ -17,8 +17,8 @@ module Risc
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raise "unsuported operator :#{operator}:" unless Risc.operators.include?(operator)
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@left = left
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@right = right
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raise "Not register #{left}" unless RiscValue.look_like_reg(left)
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raise "Not register #{right}" unless RiscValue.look_like_reg(right)
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raise "Not register #{left}" unless RegisterValue.look_like_reg(left)
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raise "Not register #{right}" unless RegisterValue.look_like_reg(right)
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end
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attr_reader :operator, :left , :right
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@ -22,9 +22,9 @@ module Risc
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@array = array
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@index = index
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# raise "index 0 " if index < 0
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raise "Not integer or reg #{index}" unless index.is_a?(Numeric) or RiscValue.look_like_reg(index)
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raise "Not register #{register}" unless RiscValue.look_like_reg(register)
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raise "Not register #{array}" unless RiscValue.look_like_reg(array)
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raise "Not integer or reg #{index}" unless index.is_a?(Numeric) or RegisterValue.look_like_reg(index)
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raise "Not register #{register}" unless RegisterValue.look_like_reg(register)
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raise "Not register #{array}" unless RegisterValue.look_like_reg(array)
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end
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attr_accessor :register , :array , :index
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@ -20,8 +20,8 @@ module Risc
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super(source)
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@from = from
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@to = to
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raise "Fix me #{from}" unless from.is_a? RiscValue
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raise "Fix me #{to}" unless to.is_a? RiscValue
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raise "Fix me #{from}" unless from.is_a? RegisterValue
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raise "Fix me #{to}" unless to.is_a? RegisterValue
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end
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attr_reader :from, :to
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@ -70,8 +70,8 @@ module Risc
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end
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def get_register( reg )
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reg = reg.symbol if reg.is_a? Risc::RiscValue
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raise "Not a register #{reg}" unless Risc::RiscValue.look_like_reg(reg)
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reg = reg.symbol if reg.is_a? Risc::RegisterValue
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raise "Not a register #{reg}" unless Risc::RegisterValue.look_like_reg(reg)
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@registers[reg]
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end
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@ -87,7 +87,7 @@ module Risc
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@flags[:minus] = false
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end
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return if old === val
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reg = reg.symbol if reg.is_a? Risc::RiscValue
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reg = reg.symbol if reg.is_a? Risc::RegisterValue
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val = Parfait.object_space.nil_object if val.nil? #because that's what real code has
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@registers[reg] = val
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trigger(:register_changed, reg , old , val)
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@ -1,8 +1,8 @@
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module Risc
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# RiscValue is like a variable name, a storage location. The location is a register off course.
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# RegisterValue is like a variable name, a storage location. The location is a register off course.
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class RiscValue
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class RegisterValue
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attr_reader :symbol , :type , :value
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@ -26,7 +26,7 @@ module Risc
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end
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def self.look_like_reg is_it
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return true if is_it.is_a? RiscValue
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return true if is_it.is_a? RegisterValue
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return false unless is_it.is_a? Symbol
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if( [:lr , :pc].include? is_it )
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return true
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@ -40,7 +40,7 @@ module Risc
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def == other
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return false if other.nil?
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return false if other.class != RiscValue
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return false if other.class != RegisterValue
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symbol == other.symbol
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end
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@ -49,7 +49,7 @@ module Risc
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int = @symbol[1,3].to_i
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raise "No more registers #{self}" if int > 11
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sym = "r#{int + 1}".to_sym
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RiscValue.new( sym , type, value)
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RegisterValue.new( sym , type, value)
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end
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def rxf_reference_name
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@ -57,16 +57,16 @@ module Risc
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end
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# can't overload "=" , so use shift for it.
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# move the right side to the left. Left (this) is a RiscValue
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# move the right side to the left. Left (this) is a RegisterValue
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# right value may be
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# - constant (Parfait object) , resulting in a LoadConstant
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# - another RiscValue, resulting in a Transfer instruction
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# - another RegisterValue, resulting in a Transfer instruction
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# - an RValue, resulting in an SlotToReg
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def <<( right )
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case right
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when Parfait::Object , Symbol
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ins = Risc.load_constant("#{right.class} to #{self.type}" , right , self)
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when RiscValue
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when RegisterValue
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ins = Risc.transfer("#{right.type} to #{self.type}" , right , self)
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when RValue
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ins = Risc.slot_to_reg("#{right.register.type}[#{right.index}] -> #{self.type}" , right.register , right.index , self)
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@ -78,7 +78,7 @@ module Risc
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end
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def -( right )
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raise "operators only on registers, not #{right.class}" unless right.is_a? RiscValue
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raise "operators only on registers, not #{right.class}" unless right.is_a? RegisterValue
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op = Risc.op("#{self.type} - #{right.type}", :- , self , right )
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builder.add_code(op) if builder
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op
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@ -92,7 +92,7 @@ module Risc
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end
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end
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# Just a struct, see comment for [] of RiscValue
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# Just a struct, see comment for [] of RegisterValue
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#
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class RValue
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attr_reader :register , :index , :builder
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@ -103,7 +103,7 @@ module Risc
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# fullfil the objects purpose by creating a RegToSlot instruction from
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# itself (the slot) and the register given
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def <<( reg )
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raise "not reg #{reg}" unless reg.is_a?(RiscValue)
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raise "not reg #{reg}" unless reg.is_a?(RegisterValue)
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reg_to_slot = Risc.reg_to_slot("#{reg.type} -> #{register.type}[#{index}]" , reg , register, index)
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builder.add_code(reg_to_slot) if builder
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reg_to_slot
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@ -113,19 +113,19 @@ module Risc
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# The register we use to store the current message object is :r0
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def self.message_reg
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RiscValue.new :r0 , :Message
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RegisterValue.new :r0 , :Message
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end
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# The register we use to store the new message object is :r3
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# The new message is the one being built, to be sent
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def self.new_message_reg
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RiscValue.new :r1 , :Message
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RegisterValue.new :r1 , :Message
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end
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# The first scratch register. There is a next_reg_use to get a next and next.
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# Current thinking is that scratch is schatch between instructions
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def self.tmp_reg( type , value = nil)
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RiscValue.new :r1 , type , value
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RegisterValue.new :r1 , type , value
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end
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end
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@ -37,28 +37,28 @@ module Arm
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end
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def test_shiftr1
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code = @machine.mov :r1, :r2 , :shift_asr => Risc::RiscValue.new(:r3 , :Integer)
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code = @machine.mov :r1, :r2 , :shift_asr => Risc::RegisterValue.new(:r3 , :Integer)
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assert_code code , :mov , [0x52,0x13,0xb0,0xe1] #e1 b0 13 52
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end
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def test_shiftr2
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code = @machine.mov :r2, :r3 , :shift_asr => Risc::RiscValue.new(:r4 , :Integer)
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code = @machine.mov :r2, :r3 , :shift_asr => Risc::RegisterValue.new(:r4 , :Integer)
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assert_code code , :mov , [0x53,0x24,0xb0,0xe1] #e1 b0 24 53
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end
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def test_shiftr3
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code = @machine.mov :r3, :r4 , :shift_asr => Risc::RiscValue.new(:r5 , :Integer)
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code = @machine.mov :r3, :r4 , :shift_asr => Risc::RegisterValue.new(:r5 , :Integer)
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assert_code code , :mov , [0x54,0x35,0xb0,0xe1] #e1 b0 35 54
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end
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def test_shiftl1
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code = @machine.mov :r1, :r2 , :shift_lsr => Risc::RiscValue.new(:r3 , :Integer)
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code = @machine.mov :r1, :r2 , :shift_lsr => Risc::RegisterValue.new(:r3 , :Integer)
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assert_code code , :mov , [0x32,0x13,0xb0,0xe1] #e1 b0 13 32
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end
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def test_shiftl2
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code = @machine.mov :r2, :r3 , :shift_lsr => Risc::RiscValue.new(:r4 , :Integer)
|
||||
code = @machine.mov :r2, :r3 , :shift_lsr => Risc::RegisterValue.new(:r4 , :Integer)
|
||||
assert_code code , :mov , [0x33,0x24,0xb0,0xe1] #e1 b0 24 33
|
||||
end
|
||||
def test_shiftl3
|
||||
code = @machine.mov :r3, :r4 , :shift_lsr => Risc::RiscValue.new(:r5 , :Integer)
|
||||
code = @machine.mov :r3, :r4 , :shift_lsr => Risc::RegisterValue.new(:r5 , :Integer)
|
||||
assert_code code , :mov , [0x34,0x35,0xb0,0xe1] #e1 b0 35 34
|
||||
end
|
||||
|
||||
|
@ -17,7 +17,7 @@ module Risc
|
||||
end
|
||||
def test_alloc_space
|
||||
reg = @builder.space
|
||||
assert_equal RiscValue , reg.class
|
||||
assert_equal RegisterValue , reg.class
|
||||
assert_equal :Space , reg.type
|
||||
end
|
||||
def test_next_message
|
||||
@ -31,36 +31,36 @@ module Risc
|
||||
assert_equal :Message , reg.type
|
||||
end
|
||||
def test_returns_built
|
||||
r1 = RiscValue.new(:r1 , :Space)
|
||||
r1 = RegisterValue.new(:r1 , :Space)
|
||||
built = @builder.build{ space << r1 }
|
||||
assert_equal Transfer , built.class
|
||||
end
|
||||
def test_returns_two
|
||||
r1 = RiscValue.new(:r1 , :Space)
|
||||
r1 = RegisterValue.new(:r1 , :Space)
|
||||
built = @builder.build{ space << r1 ; space << r1}
|
||||
assert_equal Transfer , built.next.class
|
||||
end
|
||||
def test_returns_slot
|
||||
r2 = RiscValue.new(:r2 , :Message)
|
||||
r2 = RegisterValue.new(:r2 , :Message)
|
||||
r2.builder = @builder
|
||||
built = @builder.build{ r2 << space[:first_message] }
|
||||
assert_equal SlotToReg , built.class
|
||||
assert_equal :r1 , built.array.symbol
|
||||
end
|
||||
def test_returns_slot_reverse
|
||||
r2 = RiscValue.new(:r2 , :Message)
|
||||
r2 = RegisterValue.new(:r2 , :Message)
|
||||
r2.builder = @builder
|
||||
built = @builder.build{ r2 << space[:first_message] }
|
||||
assert_equal SlotToReg , built.class
|
||||
assert_equal :r1 , built.array.symbol
|
||||
end
|
||||
def test_reuses_names
|
||||
r1 = RiscValue.new(:r1 , :Space)
|
||||
r1 = RegisterValue.new(:r1 , :Space)
|
||||
built = @builder.build{ space << r1 ; space << r1}
|
||||
assert_equal built.to.symbol , built.next.to.symbol
|
||||
end
|
||||
def test_uses_message_as_message
|
||||
r1 = RiscValue.new(:r1 , :Space)
|
||||
r1 = RegisterValue.new(:r1 , :Space)
|
||||
built = @builder.build{ message[:receiver] << r1}
|
||||
assert_equal RegToSlot , built.class
|
||||
assert_equal :r0 , built.array.symbol
|
||||
@ -105,7 +105,7 @@ module Risc
|
||||
@builder = Risc::MethodCompiler.new( @init ).builder(true, @init)
|
||||
end
|
||||
def test_inserts_built
|
||||
r1 = RiscValue.new(:r1 , :Space)
|
||||
r1 = RegisterValue.new(:r1 , :Space)
|
||||
@builder.build{ space << r1 }
|
||||
assert_equal Transfer , @init.risc_instructions.next.class , @init.risc_instructions.next
|
||||
end
|
||||
|
@ -11,8 +11,8 @@ module Risc
|
||||
|
||||
def setup
|
||||
Risc.machine.boot
|
||||
@r0 = RiscValue.new(:r0 , :Message)
|
||||
@r1 = RiscValue.new(:r1 , :Space)
|
||||
@r0 = RegisterValue.new(:r0 , :Message)
|
||||
@r1 = RegisterValue.new(:r1 , :Space)
|
||||
end
|
||||
def test_r0
|
||||
assert_equal :r0 , @r0.symbol
|
||||
|
Loading…
Reference in New Issue
Block a user