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Stack Pointer

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Revision as of 10:14, 7 December 2023 by Xetheria (talk | contribs) (other instructions affect the stack pointer as a side effect)

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The Stack Pointer on the SPC700 is 16-bit, but the upper byte is fixed by the hardware to be 0x01.

On the 65c816, the only two instructions that modify the stack pointer directly are TCS and TXS.

Reference

page 3-8-4 of Book I of the official Super Nintendo development manual

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