8 bit wise I'd go for 6502, because it is so simple. There's also modern versions like W65C816S. For more modern go for ARM, and Raspi is a really convenient way to get that. The original ARM designs were inspired by the simplicity of the 6502.
Some Z-80 might be a good place to start if your final intention is to learn x86 as they are somewhat historically related architectures. No harm in learning some X86 either.
PurpleAmethystMember Since 11 Jan 2003
Offline Last Active Jan 29 2016 07:52 AM