40 lines
1.0 KiB
Ruby
40 lines
1.0 KiB
Ruby
module Risc
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# Little glue class to get the assembled binary from the Arm Instructions into
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# the BinaryCode instances. Arm code originally uses io, but slightly modified
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# really only uses write_unsigned_int_32 , which converts
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# to an set_internal_word on the BinaryCode
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#
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# Machine instantiates and the writer reads from the arm Instructions
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# and writes to the BinaryCode
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class BinaryWriter
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def initialize( code )
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@code = code
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end
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# Go through and assemble all instructions.
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def assemble( instruction )
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@index = 0
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while(instruction)
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instruction.assemble(self)
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instruction = instruction.next
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end
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end
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def write_unsigned_int_32( bin )
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@code.set_word( @index , bin )
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@index += 1
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end
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end
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#even less glue to get that last jump in there.
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# So instructions don't run into the BinaryCode object header
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class JumpWriter
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def initialize( code )
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@code = code
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end
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def write_unsigned_int_32( bin )
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@code.set_word( 14 , bin )
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end
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end
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end
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