ARM Instruction Set
https://iitd-plos.github.io/col718/ref/arm-instructionset.pdf
https://simplemachines.it/doc/arm_inst.pdf

Quick Reference Card
https://pages.cs.wisc.edu/~markhill/restricted/arm_isa_quick_reference.pdf



8051 Instruction Set
http://cs.uok.edu.in/Files/79755f07-9550-4aeb-bd6f-5d802d56b46d/Custom/InstructionSet_UnitII.pdf