AnnexF/weigh_il.txt
author Mario de Sousa <msousa@fe.up.pt>
Wed, 13 Jun 2012 13:50:46 +0100
changeset 589 de4c2a058767
parent 0 fb772792efd1
permissions -rwxr-xr-x
Make compiler portable (do not assume int64_t is long long int)
0
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FUNCTION WEIGH : WORD     (* BCD encoded *)
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  VAR_INPUT  (* "EN" input is used to indicate "scale ready" *)
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    weigh_command : BOOL;
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    gross_weight : WORD ; (* BCD encoded *)
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    tare_weight : INT ;
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  END_VAR
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(* Function Body *)
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	LD	weigh_command	
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	JMPC	WEIGH_NOW	
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	ST	ENO	(* No weighing, 0 to "ENO" *)
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	RET		
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WEIGH_NOW:	LD	gross_weight	
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	BCD_TO_INT		
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	SUB	tare_weight	
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	INT_TO_BCD		(* Return evaluated weight *)
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	ST	WEIGH	
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END_FUNCTION                     (* Implicit "ENO" *)