59 replies to this topic

[DamageX]

If you want to know about 74xxx parts check www.chipdir.org or get a TTL Data Book

Am I the only one who sees the irony of a link being posted here to a Rick Balkins thread?

[UNIXcoffee928]

Due to lack of interest this post has been removed.

Edited by UNIXcoffee928, Thu May 4, 2006 8:06 AM.

[danwinslow]

My Irony Sensor performed a panic shutdown several posts back.

[UNIXcoffee928]

Whatever.

-UNIXcoffee928

[mos6507]

drac030, on Sun Apr 30, 2006 5:05 AM, said:

mos6507, on Sun Apr 30, 2006 10:29 AM, said:

Terbium discussions go back at least two years.

This I wouldn't call "ages" either, but surely you're right that it is a bit earlier than I thought. I am pretty sure though that there was no information about 65T32 on the WDC page two years ago (or even a year ago - but about this I am not so sure).

Let me know when they start offering a physical part. It just seems like it's taking too long and I think I know why. The 65816 was a novel solution to turning the 6502 into a 16-bit machine. Going to 32-bit while maintaining any sort of meaningful backwards compatibility is a big challenge.

[drac030]

Looking at the 65C816 as a 16-bit extension to 6502, it is rather hard to anticipate WDC's 32-bit extension to the 65C816. But I tend to think that the main difficulty may be the 16-bit data bus, and not the software backward compatibility. At least, there's quite a bit of spare opcodes to be used with new 32-bit addressing modes (I mean the reserved range of $0280-$02FF), and yet the WDM instruction, which may be used as a prefix, so the operation of the opcodes existing so far does not have to be modified or affected by the 32-bit extension.

Edited by drac030, Tue May 2, 2006 3:05 AM.

[danwinslow]

What, no status? I was looking forward to the 'parallel workflow diagram'.

[warerat]

Post deleted.

Edited by warerat, Thu May 4, 2006 11:47 AM.

[UNIXcoffee928]

Whatever.

[ApolloBoy]

What's going on here? I'm seeing a lot of removed posts, and it's bugging me since I'd like to see an 8-bit use a 32-bit CPU...