Final answer:
The PiC16F887 microcontroller has 49 assembly instructions used in programming.
Step-by-step explanation:
The total number of assembly instructions used to program the PiC16F887 microcontroller is 49. These instructions are part of the instruction set architecture (ISA) of the microcontroller. Each instruction performs a specific operation, such as arithmetic, logic, or control flow, and is represented by a unique binary code.
Assembly instructions are written using assembly language, which is a low-level programming language that is easier for humans to read and write than machine code. Assembly language instructions are then translated into machine code by an assembler, which is a software tool.
For example, one assembly instruction for the PiC16F887 microcontroller is 'ADDWF register, f', which adds the value of a register to the 'W' register. Each assembly instruction has a specific syntax and set of operands.