In SX Microcontrollers, SX/B Compiler and SX-Key Tool, g_daubach wrote:

Hi Sam,

see my post in the other thread concerning this topic - this - and especially Peter's explanations in differnt words should help to understand the mysterious program counter issue.

BTW, I don't think that the manual (which one ? Must be a type) says the PC register is actually 9 bits wide. As mentioned in my other post, the address part of a JMP instruction is 9 bits wide (and the one of a CALL is 8 bits wide only).

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