51
edits
Changes
mLine 1:
Line 1: − == Registers ==+ + + Line 7:
Line 9: − + − + − + − + − + − + − + − + − + − + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + − REG_*MAIN registers are used for the top LCD, while SUB is used for the bottom LCD.+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + − + + + + + + + + + + + + + + + + + + Line 38:
Line 175: + + + + + + + + + + + + + + + + + − + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + − When the enable bit is set, the specified solid color is displayed on the LCD instead of the rendered graphics.+ + +
Generalize naming
Other registers that used to be documented on this page are now at [[GPU Registers]].
= Registers =
{| class="wikitable" border="1"
{| class="wikitable" border="1"
! NAME
! NAME
! WIDTH
! WIDTH
|-
|-
| REG_LCDCOLORFILLMAIN
| Parallax barrier enable
| 0x10202204
| 0x10202000
| 0x1ED02204
| 0x1ED02000
| 0xFFFD6204
| 0xFFFD6000
| 4
| 0x4
|-
|-
| REG_LCDCOLORFILLSUB
| Parallax barrier PWM
| 0x10202A04
| 0x10202004
| 0x1ED02A04
| 0x1ED02004
| 0xFFFD6A04
| 0xFFFD6004
| 4
| 0x4
|-
| LCD status
| 0x10202008
| 0x1ED02008
| 0xFFFD6008
| 0x4
|-
| LCD clock disable
| 0x1020200C
| 0x1ED0200C
| 0xFFFD600C
| 0x4
|-
| ?
| 0x10202010
| 0x1ED02010
| 0xFFFD6010
| 0x4
|-
| LCD reset
| 0x10202014
| 0x1ED02014
| 0xFFFD6014
| 0x4
|-
| Top Screen [[#LCD Configuration|LCD Configuration]]
| 0x10202200
| 0x1ED02200
| 0xFFFD6200
| 0x600
|-
| Bottom Screen [[#LCD Configuration|LCD Configuration]]
| 0x10202A00
| 0x1ED02A00
| 0xFFFD6A00
| 0x600
|-
| ?
| 0x10203200
| 0x1ED03200
| 0xFFFD7200
| 0x40
|}
|}
On screen-init (error screen), Boot11 sets 0x10202004 to 0xA390A39.
== LCD Configuration ==
{| class="wikitable" border="1"
! Offset
! Size
! Description
|-
| 0x00
| 0x4
| [[#Flags|Flags]]
|-
| 0x04
| 0x4
| [[#Fill Color|Fill Color]]
|-
| 0x10
| 0x10
| [[#ABL Area|ABL Area]]
|-
| 0x20
| 0x4
| GTH Ratio
|-
| 0x24
| 0x4
| Min GTH
|-
| 0x28
| 0x4
| MinMax
|-
| 0x2C
| 0x4
| ExMax
|-
| 0x30
| 0x4
| Inertia
|-
| 0x38
| 0x4
| MinRS
|-
| 0x3C
| 0x4
| MaxRS
|-
| 0x40
| 0x4
| [[#Backlight Level|Backlight Level]]
|-
| 0x44
| 0x4
| [[#Backlight Interval|Backlight Interval]]
|-
| 0x60
| 0x20
| Dither
|-
| 0x80
| 0x24
| LutListRS
|-
| 0xF0
| 0x0C
| ?
|-
| 0x100
| 0x100
| LCD calibration data, pulled from nand:/ro/sys/HWCAL0.dat offset 0x77C.
N3DS only. This area on old3DS is zero-filled and not writable.
|-
| 0x200
| 0x400
| ?
|}
== REG_LCDCOLORFILL ==
=== Flags ===
{| class="wikitable" border="1"
! Bit
! Description
|-
| 0
| ABL on
|-
| 8
| ?
|-
| 9
| ?
|}
Bits 8 and 9 control dither.
=== Fill Color ===
{| class="wikitable" border="1"
{| class="wikitable" border="1"
! Bit
! Bit
| 24
| 24
| Enable
| Enable
|}
When the enable bit is set, the specified solid color is displayed on the LCD instead of the framebuffer.
=== ABL Area ===
{| class="wikitable" border="1"
! Offset
! Description
|-
| 0x00
| X begin
|-
| 0x04
| X end
|-
| 0x08
| Y begin
|-
|-
| 31-25
| 0x0C
| Y end
|}
The values refer to 90° clockwise rotated screens.
=== Backlight Level ===
{| class="wikitable" border="1"
! Bit
! Description
|-
| 9-0
| Backlight PWM duty on (0 = off)
|}
=== Backlight Interval ===
{| class="wikitable" border="1"
! Bit
! Description
|-
| 9-0
| Backlight PWM Interval, minus 1
|-
| 16
| Enable LCD (0 = disabled, 1 = enabled).
|-
| 17
| RS on (?)
|-
| 18
| ?
| ?
|}
|}
On old 2DS, disabling the top LCD does nothing, disabling the bottom LCD affects both screens.
Setting bit 18 makes the screen darker.