Elmo HARmonica, HARSFEN0602 software manual CMP Compare, DIV Divide

HARSFEN0602ElmoHARmonicaSoftwareManual			PRELIMINARYDRAFT
Attributes
Attribute	Value		Comment
Op code			May change in future
			versions
Number of arguments	None
Argument types	N.A.		Both arguments types must
			be integer (set according to
			stack members flags)
Addressing modes	Absent
Promotion	N.A.
Output type	Int & Int	Int
Imposes end of line	No

7.7.3CMP – Compare

Purpose:

Compare two values (they can be global/local variables, constants or from stack), if they are equal condition is true otherwise it is false.

Algorithm:			→
(Op1 == Op2 ) (SP)
SP	SP + 1
	→
Attributes:
Attribute			Value	Comment
Op code				May change in future
				versions
Number of arguments			2
Argument type1			Int or Float	If argument is from stack,
		→		type is set according to stack
				member flag
Argument type2			Int or Float
Addressing mode1			Absent , Immediate, Mem_Direct ,
			Stack Immediate, BP_Relative
Addressing mode2			Absent , Immediate, Mem_Direct ,
			Stack Immediate, BP_Relative
Promotion			N.A.
Output type			Int	Compare result is always
				integer
Imposes end of line			No

7.7.4DIV – Divide

Purpose:
Division of two numbers (top two entries at the stack).
Algorithm:
(SP-1) / (SP)	(SP-1)
SP SP-1
Attributes:
Attribute		Value	Comment
Op code			May change in future
			versions
Number of arguments		None
Argument types		N.A.	Both arguments types are set
→	→		according to stack members

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