author | Mario de Sousa <msousa@fe.up.pt> |
Fri, 08 Jun 2012 19:44:32 +0100 | |
changeset 569 | 0d1ab9e78574 |
parent 0 | fb772792efd1 |
permissions | -rwxr-xr-x |
FUNCTION WEIGH : WORD (* BCD encoded *) VAR_INPUT (* "EN" input is used to indicate "scale ready" *) weigh_command : BOOL; gross_weight : WORD ; (* BCD encoded *) tare_weight : INT ; END_VAR (* Function Body *) LD weigh_command JMPC WEIGH_NOW ST ENO (* No weighing, 0 to "ENO" *) RET WEIGH_NOW: LD gross_weight BCD_TO_INT SUB tare_weight INT_TO_BCD (* Return evaluated weight *) ST WEIGH END_FUNCTION (* Implicit "ENO" *)