Chapter 6 Applied Instructions Example When M0 is ON, the FACOS instruction finds the arccosine of the floating-point number in (D1, D0) and stores it in (D11, D10). The FDEG instruction converts the arccosine value in (D11, D10) into degrees, and stores the conversion result in (D21, D20). R180 D21~D20 R-1 D0 R3.141592 D11~D10 FA COS FDEG Floating-point number Floating-point number Floating-point number Note: "R” indicates REAL type data. Additional remarks 6_ 1. The floating-point number specified by the operand S must be between –1.0 to 1.0. If the floating-point number is not in the range, the instruction is not executed, SM0 is ON, and the error code in SR0 is 16#2003. 2.
If the value in S exceeds the range of values that can be represented by floating-point numbers, the instruction is not executed, SM0 is ON, and the error code in SR0 is 16#2013. 6-451