Ovl title - Revision history

Mzxrules at 17:43, 6 August 2021

2021-08-06T17:43:27Z

Mzxrules: lots of cleanup

2017-04-06T08:56:15Z

lots of cleanup

Ozidual: Added NTSC 1.0/1.2 Boot Logo findings

2017-04-03T18:20:58Z

Added NTSC 1.0/1.2 Boot Logo findings

Ozidual: Updated the Logo to add info on the Shimmer Effect and added No Controller info

2017-04-03T16:58:53Z

Updated the Logo to add info on the Shimmer Effect and added No Controller info

Ozidual at 03:58, 25 August 2016

2016-08-25T03:58:55Z

Ozidual: Updated with my GC2N64 notes

2016-08-18T16:56:59Z

Updated with my GC2N64 notes

Mzxrules: /* = Overlay */

2015-12-03T05:16:37Z

‎= Overlay

Mzxrules at 05:13, 3 December 2015

2015-12-03T05:13:17Z

Mzxrules: Created page with "'''ovl_title''' runs the N64 Logo animation. == NTSC 1.0 Notes == The bss? or instance data defined in the overlay table is allocated to the same address a..."

2015-12-03T05:00:30Z

Created page with "'''ovl_title''' runs the N64 Logo animation. == NTSC 1.0 Notes == The bss? or instance data defined in the overlay table is allocated to the same address a..."

New page

'''ovl_title''' runs the N64 Logo animation.

== NTSC 1.0 Notes ==

The bss? or instance data defined in the [[Overlay Table|overlay table]] is allocated to the same address as the [[Global Context]]. Even more interesting is that it shares the same structure as the start of the global context, which makes sense since both render a 3D view

=== Instance? ===
0x01C7 = Opacity of a black rectangle used to fade the logo in/out

@@ Line 11: / Line 11: @@
 [[nintendo_rogo_static]] stores the texture for the Nintendo 64 logo and the instructions for drawing and coloring the rotating N.
-As per other game state overlays, ovl_title is allocated at the end of the main heap, while the instance variables are allocated at the start of the main heap (or in other words, the "global context" address)
+As per other game state overlays, ovl_title is allocated at the end of the main heap, while the instance variables are allocated at the start of the main heap, the same as all other Game States
 Majora's Mask is pretty much the same, but the fade in/fade out animation is much faster.

@@ Line 1: / Line 1: @@
-'''ovl_title''' runs the N64 Logo animation.
+'''ovl_title''' is the backing code for the [[Game State]] that runs the N64 Logo animation.
+{{address3|space=ram|name=ovl_title
 == Notes ==
-The Nintendo 64 Logo intro in the beginning works like this:  The Logo is always 100% visible.  The fading in and out is done by a Black Rectangle that covers the Logo.  The Black Rectangle starts fully visible at FF, then fades to 00 incrementing by FFFC (-3). It stays invisible for 60 increments, and then the Black Rectangle fades in from 00 to FF incrementing by 3.  Once the Logo is fully covered, the Logo flag switches and the Opening sequence begins.  A shimmer animation plays over the NINTENDO 64 texture continuously incrementing by 01 and rotating through 00 to 7F.
+[[nintendo_rogo_static]] stores the texture for the Nintendo 64 logo and the instructions for drawing and coloring the rotating N.
-Majora's Mask is pretty much the same, but the fade in/fade out increment is much faster.
+As per other game state overlays, ovl_title is allocated at the end of the main heap, while the instance variables are allocated at the start of the main heap (or in other words, the "global context" address)
 == NTSC 1.0 Notes ==
-The bss? or instance data defined in the [[Overlay Table|overlay table]] is allocated to the same address as the [[Global Context]]. Even more interesting is that it shares the same structure as the start of the global context, which makes sense since both render a 3D view
+=== Instance ===
 x01C7 = Opacity of a black rectangle used to fade the logo in/out
@@ Line 27: / Line 27: @@
 == MQ Debug Notes ==
 {|class="wikitable"
@@ Line 32: / Line 42: @@
 |-
 |B77F6F||01||(in [[Code_(File)|code]]) The Verbose flag, 02 makes "NOT MARIO CLUB VERSION" show with the Logo
 |-
 |BCF600||--||Branch for the loop to set up the Display Info for the Logo
@@ Line 45: / Line 53: @@
 |BCF88C||14||One of the timing values
 |-
-|BCF893||FF||Initial Alpha value for the Black Rectangle
+|BCF893||FF||Initial alpha value for the black rectangle
 |-
 |BCF8F0||--||The text for "NOT MARIO CLUB VERSION"
@@ Line 54: / Line 62: @@
 === Restoring the Logo ===
-By default, the Logo flag is set to completed so the Boot Logo never loads.  The code to control the Black Rectangle fading, to control the animated shimmer over NINTENDO 64 and to flip the Logo flag is missing.  The best place for the missing code is in between the loading of the alpha value for the Black Rectangle and the storing of it.  In the Debug RAM, the Black Rectangle Alpha is stored in 2 bytes at 802121F6, the shimmer value is pulled from 2 bytes at 802121FC and stored in 2 bytes at 802121FE.
+By default, the logo flag is set to completed so the boot logo never loads.  The code to control the black rectangle fading, to control the animated shimmer over NINTENDO 64 and to flip the Logo flag is missing.  The best place for the missing code is in between the loading of the alpha value for the black rectangle and the storing of it.  In the Debug RAM, the black rectangle alpha is stored in 2 bytes at 802121F6, the shimmer value is pulled from 2 bytes at 802121FC and stored in 2 bytes at 802121FE.
 All Gamecube versions of Ocarina of Time/Master Quest and Majora's Mask can have the intro restored using the same code with minor variations for Majora's Mask's timing and storage locations.  The only offsets that are important are those listed in the MQ Debug notes.

← Older revision		Revision as of 18:20, 3 April 2017
Line 14:		Line 14:

	The bss? or instance data defined in the [[Overlay Table\|overlay table]] is allocated to the same address as the [[Global Context]]. Even more interesting is that it shares the same structure as the start of the global context, which makes sense since both render a 3D view		The bss? or instance data defined in the [[Overlay Table\|overlay table]] is allocated to the same address as the [[Global Context]]. Even more interesting is that it shares the same structure as the start of the global context, which makes sense since both render a 3D view
		+
		+	The RAM location for the Boot Logo code is between 803B4640 and 803B46D8. The same location is used by NTSC 1.2.

	=== Instance? ===		=== Instance? ===

@@ Line 4: / Line 4: @@
 == Notes ==
-The Nintendo 64 Logo intro in the beginning works like this:  The Logo is always 100% visible until a flag switches from Logo to Opening sequence.  The fading in and out is done by a Black Rectangle that covers the Logo.  The Black Rectangle starts fully visible at FF, then fades to 00 incrementing by FFFC (-3). It stays invisible for 60 increments, and then the Black Rectangle fades in from 00 to FF incrementing by 3.  Once the Logo is fully covered, the Logo flag switches and the Opening sequence begins.
+The Nintendo 64 Logo intro in the beginning works like this:  The Logo is always 100% visible.  The fading in and out is done by a Black Rectangle that covers the Logo.  The Black Rectangle starts fully visible at FF, then fades to 00 incrementing by FFFC (-3). It stays invisible for 60 increments, and then the Black Rectangle fades in from 00 to FF incrementing by 3.  Once the Logo is fully covered, the Logo flag switches and the Opening sequence begins.  A shimmer animation plays over the NINTENDO 64 texture continuously incrementing by 01 and rotating through 00 to 7F.
 [[nintendo_rogo_static]] has the texture for the Nintendo 64 logo and the instructions for drawing and coloring the rotating N.
@@ Line 38: / Line 38: @@
 |-
 |BCF624||--||First of two store commands that stores the Black Rectangle alpha
 |-
 |BCF88C||14||One of the timing values
@@ Line 50: / Line 52: @@
 === Restoring the Logo ===
-By default, the Logo flag is set to completed, and the code to control the Black Rectangle fading and to flip the Logo flag is missing.  The best place for the missing code is in between the loading of the alpha value for the Black Rectangle and the storing of it.  In RAM, follow the store command for the timing value to find the location for most of the values used in the missing fading code.
+By default, the Logo flag is set to completed so the Boot Logo never loads.  The code to control the Black Rectangle fading, to control the animated shimmer over NINTENDO 64 and to flip the Logo flag is missing.  The best place for the missing code is in between the loading of the alpha value for the Black Rectangle and the storing of it.  In the Debug RAM, the Black Rectangle Alpha is stored in 2 bytes at 802121F6, the shimmer value is pulled from 2 bytes at 802121FC and stored in 2 bytes at 802121FE.
-All Gamecube versions of Ocarina of Time/Master Quest and Majora's Mask can have the intro restored using the same code with minor variations for Majora's Mask's timing.  The only offsets that are important are those listed in the MQ Debug notes.
+There is a single byte 00/01 flag at 80166B68 (Debug RAM) that defines whether a controller is connected (01).  The existing code stores 00FF to 8015F9B4 no matter what.  If FEDC is stored instead, "No Controller" will replace "Press Start" in the title sequence.  If the replacement code is less than 4 words, it can fit by pushing the code after it down into the 00000000's at the end.  The "No Controller" code is disabled in all NTSC-U and PAL versions of the GameCube ROMs, but not the NTSC-J versions.

@@ Line 11: / Line 11: @@
-== NTSC 1.0 ==
+== NTSC 1.0 Notes ==
 The bss? or instance data defined in the [[Overlay Table|overlay table]] is allocated to the same address as the [[Global Context]]. Even more interesting is that it shares the same structure as the start of the global context, which makes sense since both render a 3D view
@@ Line 24: / Line 24: @@
-== MQ Debug ==
+== MQ Debug Notes ==
 {|class="wikitable"

@@ Line 8: / Line 8: @@
 x01C7 = Opacity of a black rectangle used to fade the logo in/out
-=== Overlay ==
+=== Overlay ===
 x0818 = Start of reference to [[nintendo_rogo_static]]. A3 = File Start, T0 = File End, A1 = File Size

← Older revision		Revision as of 05:13, 3 December 2015
Line 7:		Line 7:
	=== Instance? ===		=== Instance? ===
	0x01C7 = Opacity of a black rectangle used to fade the logo in/out		0x01C7 = Opacity of a black rectangle used to fade the logo in/out
		+
		+	=== Overlay ==
		+
		+	0x0818 = Start of reference to [[nintendo_rogo_static]]. A3 = File Start, T0 = File End, A1 = File Size