Whilst I was writing my post about instruction decoding, a thought struck me about improving the structure of decoding. In the existing decoder, I do four things: Get the displacement, if needed Get the source operand, if needed Do the operation Save the result to the destination if needed This works fine but the "do … Continue reading Some Refactoring
Category: decoding
Decoding
The Decoding Table Let us talk about instruction decoding. What is instruction decoding? It is the process of taking opcodes and operands and doing what they tell you. Instruction decoding is the heart of a processor emulation and in mine takes up the vast majority of lines of code. In his blog, Andre Weissflog characterises two … Continue reading Decoding
