***Quadruples For*** ***rmC Virtual Machine***
Code #	OP	OPND1	OPND2	RESULT	Meaning
`0`	`NOP`	`0`	`0`	`0`	`do nothing`
`1`	`BZ`	`q`	`s1`	`0`	`if s1=0 then go to q`
`2`	`BR`	`q`	`0`	`0`	`go to q`
`3`	`:=`	`s1`	`0`	`s2`	`s2 := s1`
`4`	`READ`	`0`	`0`	`s1`	`s1 receives next input value`
`5`	`WRITE`	`s1`	`0`	`0`	`write value of s1 on next output line`
`6`	`+`	`s1`	`s2`	`s3`	`s3 := s1 + s2`
`7`	`-`	`s1`	`s2`	`s3`	`s3 := s1 - s2`
`8`	`*`	`s1`	`s2`	`s3`	`s3 := s1 * s2`
`9`	`/`	`s1`	`s2`	`s3`	`s3 := s1 / s2`
`10`	`**`	`s1`	`s2`	`s3`	`s3 := s1 ** s2`
`11`	`LT`	`s1`	`s2`	`s3`	`s3 := s1 LT s2`
`12`	`LE`	`s1`	`s2`	`s3`	`s3 := s1 LE s2`
`13`	`EQ`	`s1`	`s2`	`s3`	`s3 := s1 EQ s2`
`14`	`NE`	`s1`	`s2`	`s3`	`s3 := s1 NE s2`
`15`	`OR`	`s1`	`s2`	`s3`	`s3 := s1 OR s2`
`16`	`AND`	`s1`	`s2`	`s3`	`s3 := s1 AND s2`
`17`	`NOT`	`s1`	`0`	`s2`	`s2 := NOT s1`
`18`	`unary -`	`s1`	`0`	`s2`	`s2 := - s1`

q - quadruple number; s1, s2, s3 - symbol table entries