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Stack Pointer: Difference between revisions
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Revision as of 07:45, 4 December 2023
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