BBC is the British broadcasting channel in the UK for me, and their 80/90's graphics were pretty much the same!?
No conditional execution, and the program counter is no longer directly addressable.
This does increase performance, at the cost of code density (no thumb instructions either).
Fujitsu's ARM supercomputer was the first that I'd heard of removing all 32-bit support, but mainline designs are about to do the same with phones.
Micro men, story of the zx spectrum vs the bbc
You should have heard of them: Acorn is the original "A" in ARM.
The BBC wanted to promote computer literacy in the UK, so intended to run TV and radio series, magazines, etc. It wanted a high-end user-programmable home computer that would be very expandable, with the priorities being a good BASIC, fairly fast, and a wide range of ports... rather than affordable (cf. ZX Spectrum) or a videogames machine (cf. Commodore VIC20 & C64, Atari 8-bits).
It got it. For a while UK schools and universities ran almost entirely on BBC Micros. They weren't so common in the home as they were about 3-4x the price of a ZX Spectrum or C64.
Acorn evaluated various chips for its planned next-gen machine, and discarded all of them as being too expensive, not powerful enough, etc. This included the Motorola 680000, the Intel 80186, the WDC 65C816, the NatSemi 32016 and others.
So it designed its own: the Acorn RISC Machine, or ARM for short.
It's now the best-selling CPU in the world by about 2 orders of magnitude, so I reckon you've probably heard of it.