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https://opencores.org/ocsvn/tinycpu/tinycpu/trunk
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| Rev 36 |
Rev 37 |
| Line 17... |
Line 17... |
end
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end
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end
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end
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end
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end
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class Register8
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class Register8
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attr_accessor :number
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attr_accessor :number
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def initialize(num)
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def initialize(num)
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@number=num
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@number=num
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end
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end
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end
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end
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$iftr = 0; #0 for no condition, 1 for if TR, 2 for if not TR
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$iftr = 0; #0 for no condition, 1 for if TR, 2 for if not TR
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$useextra = 0;
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def mov_r8_imm8(reg,imm)
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def mov_r8_imm8(reg,imm)
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o = OpcodeByte1.new();
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o = OpcodeByte1.new();
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o.op = 0;
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o.op = 0;
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o.register=reg;
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o.register=reg;
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Line 40... |
raise "if_tr_notset is not allowed with this opcode";
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raise "if_tr_notset is not allowed with this opcode";
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end
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end
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puts PREFIX + o.to_hex + imm.to_s(16) + SUFFIX;
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puts PREFIX + o.to_hex + imm.to_s(16) + SUFFIX;
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puts SEPERATOR;
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puts SEPERATOR;
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end
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end
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def mov_rm8_imm8(reg,imm)
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o=OpcodeByte1.new();
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o.op=1;
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o.register=reg;
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if $iftr<2 then
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o.cond=$iftr;
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else
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raise "if_tr_notset is not allowed with this opcode";
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end
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puts PREFIX + o.to_hex + imm.to_s(16) + SUFFIX;
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puts SEPERATOR;
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end
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def mov(arg1,arg2)
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def mov(arg1,arg2)
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if arg1.kind_of? Register8 and arg2.kind_of? Integer and arg2<0x100 then mov_r8_imm8 arg1,arg2 end
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if arg1.kind_of? Register8 and arg2.kind_of? Integer and arg2<0x100 then
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mov_r8_imm8 arg1,arg2
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elsif arg1.kind_of? Array and arg2.kind_of? Integer and arg2<0x100 then
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if arg1.length>1 or arg1.length<1 then
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raise "memory reference is not correct. Only a register is allowed";
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end
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reg=arg1[0];
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mov_rm8_imm8 reg, arg2
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else
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raise "No suitable mov opcode found";
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end
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end
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end
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def if_tr_set
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def if_tr_set
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$iftr = 1
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$iftr = 1
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yield
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yield
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$iftr = 0
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$iftr = 0
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Line 85... |
#test code follows. Only do it here for convenience.. real usage should prefix assembly files with `require "asm.rb"`
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#test code follows. Only do it here for convenience.. real usage should prefix assembly files with `require "asm.rb"`
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if_tr_set{
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if_tr_set{
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mov r1,0x10
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mov r1,0x10
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}
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}
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mov r1,0x20
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mov r1,0x20
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No newline at end of file
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No newline at end of file
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mov [r1], 0x50
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No newline at end of file
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No newline at end of file
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