[Coco] 6809 CPU architecture
jimcox at miba51.com
jimcox at miba51.com
Fri Jan 23 01:17:15 EST 2004
You're right, that reply was meant for Robert, but I'd
also like to thank you for your help too :)
I think I'm missing something, but didn't Robert already
list X, Y, U, amd S?
Jim
On Thu, 22 Jan 2004 23:10:27 -0600
Roger Taylor <rtaylor at bayou.com> wrote:
>I think you replied to Robert's 6809 msg but thanked me.
>
>Anyway, here's some more pointers for you....
>
>
>,X
>
>,Y
>
>,U
>
>,S
>
>:)
>
>
>
>
>At 06:39 PM 1/22/2004 -0800, you wrote:
>>Roger:
>>
>>Thanks for the pointers, keep them coming :)
>>
>>Jim
>>On Tue, 20 Jan 2004 00:34:53 -0500
>> Robert Gault <robert.gault at worldnet.att.net> wrote:
>>>
>>>6809 Registers
>>>
>>>bit # 15 0
>>> ---------------------------------------
>>> X - Index Register
>>> ---------------------------------------
>>> Y - Index Register
>>> ---------------------------------------
>>> U - User Stack Pointer
>>> ---------------------------------------
>>> S - Hardware Stack Pointer
>>> ---------------------------------------
>>> PC - Program Counter
>>> --------------------|------------------
>>> A - Accumulator | B - Accumulator
>>> ---------------------------------------
>>> \___________________D_________________/
>
>
>----------
>Roger Taylor
>
>
>
>
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