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インタープリタを作る その21

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#概要

インタープリタを作ってみた。
avrインタープリター書いてみた。
加算addを実装する。

#投入するソース

9+2

avr.ldi(16, 0x09)
avr.ldi(17, 0x02)
avr.add(16, 17)
avr.out(1, 16)

#サンプルコード

	add: function(_Rd, _Rr) {
		var Rd = kan2(this.dataspace[_Rd]);
		var Rr = kan2(this.dataspace[_Rr]);
		var v = (Rd + Rr) & 0xff;
		this.dataspace[_Rd] = hen(v);
		var SREG = this.dataspace[this.sreg];
		this.PC++;
		this.dataspace[this.sreg] = SREG;
	},

#成果物

以上。

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