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Uppermost Page
From SnesLab
The Uppermost Page is the contiguous region of 256 bytes in ARAM with the highest possible address, located at $FF00. It/offsets within it are abbreviated "upage."[1]
Both TCALL and PCALL utilize it.
The 64-byte SPC700/IPL ROM lives in the uppermost page at FFC0h.[2]
See Also
Reference
- Appendix C-1 of Book I of the official Super Nintendo development manual
- fullsnes