4 ms·
I think you needed cheaper RAM also to enable RISC. At the very least, a 32-bit wide interface was not going to fly this early.
by jhallenworld 6y ago
I think you needed cheaper RAM also to enable RISC. At the very least, a 32-bit wide interface was not going to fly this early.
- klelatti 6y agoYou're absolutely right: ARM1 code density would have been much, much worse than 8088 (which Thumb partly solved later on) and the 32 bit bus wouldn't have been practical. Edit: By complete coincidence browsing some related Z80 came across your memcpy comparison which is fascinating. The step up to the ARM1 is remarkable. I think I remember Herman Hauser saying that Acorn approached Intel for an x86 chip with higher memory bandwidth but were rebuffed and that led to the development of Arm.
- deleted 6y ago[deleted]