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Programming / Re: Super Mario Bros. (NES) - "Pages"?

« on: June 07, 2019, 07:50:42 am »

Thanks for the responses. As I studied the code some more it was the conclusion I started to suspect as well.

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Programming / Super Mario Bros. (NES) - "Pages"?

« on: June 06, 2019, 07:10:28 am »

Hey! I'm pretty new to 6502 assembly and I've been trying to study the disassembly of Super Mario Bros. and I came upon the word pages and was wondering what they are referring to. What does pages mean in the context of the code?

Here's some examples of what I mean:

Near the beginning of RenderSceneryTerrain

Code: [Select]

lda CurrentPageLoc        ;otherwise check for every third page
At the start of Entrance_GameTimerSetup

Code: [Select]

lda ScreenLeft_PageLoc    ;set current page for area objects
sta Player_PageLoc        ;as page location for player
The code I'm using: https://www.romhacking.net/documents/344/