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Added FF46 in the memory map io range table #639

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Merged
merged 2 commits into from
Nov 26, 2025
Merged

Added FF46 in the memory map io range table #639

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Added FF46 in the memory map io range table
shuhaowu Nov 24, 2025
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shuhaowu Nov 26, 2025
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1 change: 1 addition & 0 deletions src/Memory_Map.md
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Expand Up @@ -29,6 +29,7 @@ $FF04 | $FF07 | DMG | [Timer and divider](<#Timer and Divider Reg
$FF0F | | DMG | [Interrupts](<#FF0F — IF: Interrupt flag>)
$FF10 | $FF26 | DMG | [Audio](<#Audio Registers>)
$FF30 | $FF3F | DMG | [Wave pattern](<#FF30–FF3F — Wave pattern RAM>)
$FF46 | | DMG | [OAM DMA transfer](<#OAM DMA Transfer>)
$FF40 | $FF4B | DMG | LCD [Control](<#FF40 — LCDC: LCD control>), [Status](<#FF41 — STAT: LCD status>), [Position, Scrolling](<#LCD Position and Scrolling>), and [Palettes](<#Palettes>)
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@avivace avivace Nov 24, 2025 •
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Shouldn't it be more clear putting $FF46 here ? (in the $FF40-FF4B range? with LCFC, STAT, etc)

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@ISSOtm ISSOtm Nov 26, 2025

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Well, it is video-related, but its direct function has nothing to do with video, so I'd understand separating it out. Though I'd prefer having it below this line, to keep the “start” column sorted.

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@avivace avivace Nov 26, 2025

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@ISSOtm I like your suggestion as well

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@shuhaowu shuhaowu Nov 26, 2025

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Updated so it is after the ff40 range.

$FF4C | $FF4D | CGB | [KEY0](<#FF4C — KEY0/SYS (CGB Mode only): CPU mode select>) and [KEY1](<#FF4D — KEY1/SPD (CGB Mode only): Prepare speed switch>)
$FF4F | | CGB | [VRAM Bank Select](<#FF4F — VBK (CGB Mode only): VRAM bank>)
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