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The MSP430 doesn't really have any heritage from the TMS9900.

 

Also worth noting that what killed the TI 99/4A more than anything else was TI's refusal to release any technical details on the machine.  While they did relent in the end, the machine was pretty much dead by that point.

 

This is largely why you see far less retro interest in the 99/4A than just about any other machine of the era.

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The MSP430 doesn't really have any heritage from the TMS9900.

 

Also worth noting that what killed the TI 99/4A more than anything else was TI's refusal to release any technical details on the machine.  While they did relent in the end, the machine was pretty much dead by that point.

 

This is largely why you see far less retro interest in the 99/4A than just about any other machine of the era.

http://www.vintage-computer.com/vcforum/showthread.php?25408-TMS-9900-question&p=184315#post184315

"You can see how the 9900 instruction set has evolved by inspecting the TI MSP430 microcontroller family. Gone is the workspace pointer and CRU, replaced by traditional stack architecture but the instruction set will otherwise look very familiar."

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