[sdiy] how you got started with your current µC?

[MTG]

Sign Extend

On 9/21/2015 10:39 AM, Timothy Daugard wrote:
> On 9/20/2015 9:22 PM, nvawter wrote:
>> On 2015-09-20 16:54, Tim Ressel wrote:
>>> My first proc was a COSMAC 1802, on a breadboard, with manual entry
>>> switches, powered off a car battery, in a horse barn. (beat that!)
>>
>> https://en.wikipedia.org/wiki/RCA_1802#Code_samples
>>
>> It appears that a valid opcode on that chip is "SEX" (tee hee hee!)
>>
>
> IIRC Set the X register to the following byte (for indirect addressing).
> Easy enough to look up in the file two feet away if I cared.
>
> Tim Daugard
>
>
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>
>