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Stack Pointer

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Revision as of 23:53, 26 November 2023 by Xetheria (talk | contribs) (65c816 instructions that do not alter stack pointer)

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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 are TCS and TXS.

Reference

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

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ASM