3 ms·
The 030 was the first real MMU 68k.
by manv1 4y ago
The 030 was the first real MMU 68k.
- eschaton 4y agoThe 68030 was the first implementation with an on chip MMU. The 68010 and 68012 could work with the 68451 segmented MMU and the 68020 could work with the 68451 (since it was a memory-mapped peripheral) and with the 68851 paged MMU. In addition to Motorola’s MMUs, through the 68020 there were a ton of MMU designs ranging from Lisa’s software-assisted MMU (where a stack probe instruction is inserted into the function and trap prologues) to Apollo’s “run two 68000 CPUs out of phase for page fault recovery” insanity.