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The LCALL instruction calls a subroutine located at the specified address. This result is pushed onto the stack low-byte first and the stack pointer is incremented by 2. Program execution is transferred to the subroutine at this address. SCADA Pro | Downloads - Media | Try out SCADA Pro for 60 days! You can download Download Free Version - Manuals - Examples - Installation Instruction13 Feb 2019 Download LOOP AND CALL INSTRUCTIONS The 8051 Microcontroller and Embedded Systems: Using Assembly and C Mazidi, Mazidi and SCADA. 59. Chapter1 Brief Introduction to FAB-SCADA Sytem.1 3.1 Instructions and Buttons in the Control Interface8 3.2 Operation Instructions and Quick Buttons .. send the recorded emergency call to any pre-set telephone number. x86 Assembly Language Reference Manual The lcall instruction calls intersegment (far) procedures using a full pointer. lcall causes the procedure named in