Lecture 03: From Code to Machine Instructions

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Announcements and assignment workflow

Code of the day: XOR swap

From source to an executable

One source statement can require multiple instructions

Compiler flags and target architecture matter

Instructions, data, and the processor

ISA versus microarchitecture

MIPS instruction formats

I format: load a word

R format: add registers

J format and control flow

From transistors to logic

A one-bit full adder

Ripple-carry addition and delay

Hardware design and scaling

GPU architecture examples