Where to get WDC 6502s from?

smilingphoenix · Post by **smilingphoenix** » Tue Jun 05, 2007 5:43 pm

Can anybody recomend a supplier of WDC devices in the UK please?

voightkampff · Post by **voightkampff** » Thu Jun 21, 2007 8:28 am

I've purchased from these guys, give them a call for prices they're very helpful and happy to do small orders.

COLTEK LTD.
83 Lower Road
Woodchurch
Ashford Kent
UK TN2635G
Ph: 0044 1233 860556
Fx: 0044 1233 861271
Email: coltek@aol.com
Contact: Richard

smilingphoenix · Post by **smilingphoenix** » Thu Jun 21, 2007 12:19 pm

Thanks for the contact - I've just placed an order with them.

Soon I will have a 65C816 and can find out what this 16 bit stuff all you guys go on about is really like

GARTHWILSON · Post by **GARTHWILSON** » Thu Jun 21, 2007 5:20 pm

Quote:

Soon I will have a 65C816 and can find out what this 16 bit stuff all you guys go on about is really like

Download WDC's programming book from their website at http://www.westerndesigncenter.com/wdc/ ... manual.pdf . The '816 is about a lot more than just 16-bit registers. It adds a lot of instructions and addressing modes, making various jobs a lot easier.

kc5tja · Post by **kc5tja** » Fri Jun 22, 2007 3:25 am

If you NEVER use 16-bit instructions, then the following analogy holds:

* 6502 : 65816 :: 6800 : 6809

If you DO use 16-bit software, then:

* 6502 : 65816 :: 6800 : TMS9900

That pretty much sums it up.