f601290771
It was previously decrementing addresses if the direction was from registers to memory, but that's incorrect. It should increment the address always when using an addressing mode other than the ARecDec mode. I also added a memory location to the test cases to test the MOVEM instruction by comparing what memory was read/written (but it's only one u32 because that's the minimum we need) |
||
|---|---|---|
| binaries | ||
| frontends | ||
| src | ||
| .gitignore | ||
| Cargo.toml | ||
| README.md | ||
| todo.txt | ||
Moa
Started September 26, 2021
An emulator for m68k CPUs and devices. I originally started this project to distract myself while recovering from a bout of sickness. The idea was to emulate the computer I had built as part of the computie project.
Currently it can run the monitor program and load the kernel across serial
(or the kernel can be loaded directly into memory), and it can boot the kernel.
It opens two PTYs: one for the serial terminal, and one for the SLIP connection,
and launches both pyserial-miniterm automatically connected to the console PTY,
and launches slattach with the associated setup commands to create the SLIP
device on the host, and set up routing.
There are currently peripheral emulators for the MC68681 dual serial port controller, and the ATA device, which loads the compact flash image on startup, which the OS can read.