Examples of AVR assembly I've collected from the internet and modified to work with the gavrasm assembler for the attiny85.
Example build: gavrasm tests.s
Example Upload: C:\Users\jacob.platformio\packages\tool-avrdude\avrdude.exe -C "C:\Users\jacob.platformio\packages\tool-avrdude\avrdude.conf" -v -p attiny85 -c usbtiny -U flash:w:tests.hex:i