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(CGRAM)
(lowoam is two pages)
 
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Most pages begin at an address of the form $xx:yy00, where xx is the bank number and yy is the page number, but the [[direct page]] can begin anywhere in [[bank]] zero.
Most pages begin at an address of the form $xx:yy00, where xx is the bank number and yy is the page number, but the [[direct page]] can begin anywhere in [[bank]] zero.


[[CGRAM]] is exactly two pages.
[[CGRAM]] and [[lowoam]] are exactly two pages.


[[Category:ASM]]
[[Category:ASM]]
[[Category:Official Jargon]]
[[Category:Official Jargon]]

Latest revision as of 07:44, 21 September 2024

A Page in the 65x architecture is 256 contiguous bytes.

A page boundary occurs between byte $FF of one page and byte $00 of the next. In emulation mode, crossing a page boundary incurs a one cycle penalty.

The zeropage is located at $00:0000.

Most pages begin at an address of the form $xx:yy00, where xx is the bank number and yy is the page number, but the direct page can begin anywhere in bank zero.

CGRAM and lowoam are exactly two pages.