4 ms·
It's fun that this talks about an address as "777302". That doesn't look like an address to slightly-more-modern eyes like mine. It's probably octal, where 7 is
by unwind 12y ago
It's fun that this talks about an address as "777302". That doesn't look like an address to slightly-more-modern eyes like mine. It's probably octal, where 7 is like 0xf in hex.
So, converting it to hex gives 0x3fec2, which is 318 bytes from the top of the first 256 KB (256 * 1024 is 0x40000), and thus sounds likely as a peripheral I/O address.
- hga 12y agoYeah, octal was the convention on PDP-11 UNIX(TM). As I recall it wasn't until the move to 32 bit computers like the 68000 and no doubt the VAX preceding it that UNIX moved to hexadecimal.