Sep 25, 2023 · In the '80s and '90s the Intel x86 and Motorola 68000 families were the two leading microcomputer architectures in the 16-bit/32-bit personal computer scene. The 68000s were even preferred by the p...

Oct 17, 2020 · Why are old CPUs like MOS Technology 6502 and Motorola 68000 considered better for real time systems applications than modern x86 based CPUs? Because the persons writing that kind of things are old-school and not thinking outside their little box.

Jul 6, 2023 · The Motorola 68000 has 16 (somewhat) general-purpose registers of 32 bits each, a generous complement by the standards of its day. I would expect these to take a significant fraction of the die are...

The Zilog Z8000, Motorola 68000, and Intel 8086 all arrived at roughly the same time-frame and each represented the new 16-bit architecture of their respective CPU designers.

Jul 30, 2019 · According to Wikipedia, The Motorola 6800 was released in 1974. Between that and the release of the 6809 in 1979 (or 1978?) there was at least one other 6800-series CPU released, the 6802 microcontroller with the same registers and instruction set as the 6800.

Jun 29, 2020 · In the 80s, the two great 16/32-bit desktop CPU architectures were the x86, used in the IBM PC and compatibles, and the 68000, used in the Amiga, Atari ST, Macintosh, early UNIX workstations and re...

Jun 27, 2022 · While other 68k workstations did use two 68ks, I’m not sure the Sun-1 did. The architecture paper says “The original 68000 processor cannot fully recover from page faults because it does not save sufficient state information to continue an aborted instruction. However, for a limited set of operations, such as load and store, recovery from aborted instructions is …

Got a question about how the 68000 addresses memory. Wikipedia says: The 68000 has a 24-bit external address bus and two byte-select signals "replaced" A0. Here is an image of the chip's pins...

May 19, 2023 · After an MC68000 processor is released from reset, it fetches the initial stack pointer and initial program counter from the vector table at addresses 0-3 (for the SP) and addresses 4-7 (for the PC).

Jul 24, 2019 · For an 8Mhz 68000, there are 8,000,000 clock cycles per second. A bus cycle is the complete set of states that describes a bus interaction — most normally a read or write, and usually 4 cycles / 8 states long.