Reality Co-Processor - Revision history

Mzxrules: Mzxrules moved page Reality Co-processor to Reality Co-Processor

2021-03-23T16:35:50Z

Mzxrules moved page Reality Co-processor to Reality Co-Processor

Mzxrules: Mzxrules moved page Microcode move to Reality Co-processor without leaving a redirect

2021-03-23T16:22:09Z

Mzxrules moved page Microcode move to Reality Co-processor without leaving a redirect

Mzxrules: Mzxrules moved page Microcode to Microcode move without leaving a redirect

2021-03-23T16:19:35Z

Mzxrules moved page Microcode to Microcode move without leaving a redirect

ShimmerFairy: /* Microcode Strings */ Add clarification the name of the 3D microcode in these strings.

2021-03-23T04:04:20Z

‎Microcode Strings: Add clarification the name of the 3D microcode in these strings.

Mzxrules: /* Microcode Libraries */

2021-03-23T03:37:20Z

‎Microcode Libraries

Mzxrules at 03:36, 23 March 2021

2021-03-23T03:36:29Z

Mzxrules: /* S2DEX */

2019-04-28T09:18:59Z

‎S2DEX

Mzxrules: /* F3DZEX */

2018-04-10T01:50:12Z

‎F3DZEX

Mzxrules: Added unsorted info on some RCP transfers

2018-03-24T20:40:03Z

Added unsorted info on some RCP transfers

Mzxrules at 01:35, 8 March 2018

2018-03-08T01:35:01Z

@@ Line 33: / Line 33: @@
   RSP Gfx ucode F3DZEX.NoN  fifo 2.08J Yoshitaka Yasumoto/Kawasedo 1999
   RSP Gfx[Safe] S2DEX       fifo 2.05  Yoshitaka Yasumoto 1998 Nintendo
 == F3DZEX2 ==

@@ Line 23: / Line 23: @@
 * S2DEX - used in a very limited capacity. The only known usage of S2DEX is within prerendered rooms, in order to display the 2D texture for the top down perspective.
-In addition, [z_select_static] consists of of Fast3D/F3DEX GBI
+In addition, [[z_select_static]] consists of of Fast3D/F3DEX GBI
 == Microcode Strings ==

@@ Line 1: / Line 1: @@
 {{article link|Microcode}}
 ==Introduction==
-The N64's Reality Co-Processor (specifically, the RSP component) is reprogrammable, allowing developers to add extra/custom functionality to the Co-processor. Microcode (sometimes appearing as "ucode", standing for μcode) is thus the set of instructions that can be loaded/executed on the RSP.
+The N64's Reality Co-Processor (RCP) is a microcode-reprogrammable GPU, containing two integrated processors known as the Reality Signal Processor (RSP) and the Reality Display Processor (RDP). The RSP is reprogrammable, allowing developers to add extra/custom functionality to the Co-processor. Microcode (sometimes appearing as "ucode", standing for μcode) is thus the set of instructions that can be loaded/executed on the RSP. The RCP is primarily used to graphics processing, with some games using it for audio processing.
 == Microcode Libraries ==
 OoT 1.0 (U):
   RSP Gfx ucode F3DZEX.NoN  fifo 2.06H Yoshitaka Yasumoto 1998 Nintendo
@@ Line 12: / Line 34: @@
   RSP Gfx[Safe] S2DEX       fifo 2.05  Yoshitaka Yasumoto 1998 Nintendo
-The above are '''microcode programs''', each with a set of ''opcodes'' (operation codes) which instruct the RCP to do certain things, such as enable/disable texturing, draw polygons, and everything from there.
+== F3DZEX2 ==
+{{main|F3DZEX2}}
-== F3DZEX ==
+F3DZEX2 is a 3D based graphics microcode, and the primary graphics microcode used by the Zelda 64 engine. F3DZEX2 is based off of the F3DEX2 microcode, sharing the same graphics binary interface.
-There are no major differences between 2.06H and 2.08J of the F3DZEX microcode.
+There are no major differences between 2.06H and 2.08J of the F3DZEX2 microcode.
 == S2DEX ==
@@ Line 50: / Line 70: @@
 B0, size 0x3E8. Sometime cases it seems only 0x160 is transferred
 E2FC0, size 0x1000 //audio
-E3F70, size 0x1000 //F3DZEX possibly?
+E3F70, size 0x1000 //F3DZEX2 possibly?
 x40 bytes at address 8012BAC0 is transferred to 04000FC0 //DMEM

@@ Line 22: / Line 22: @@
 == S2DEX ==
-S2DEX is a 2D based graphics microcode. It is rarely used by the Z64 engine, seemingly used solely to draw rooms with pre-rendered backgrounds.
+S2DEX is a 2D based graphics microcode. It is rarely used by the Z64 engine. The only known instance in which is used is to draw rooms with pre-rendered backgrounds from a top-down perspective.
   /* 0x0A */ gsSPBgRectCopy(mptr); //mptr points to uObjBg type

@@ Line 16: / Line 16: @@
 == F3DZEX ==
 {{main|F3DZEX}}
-F3DZEX is a 3D based graphics microcode, and the primary graphics microcode used by the Zelda 64 engine. F3DZEX is based off of the F3DEX2 microcode, and actually shares the same graphics binary interface.
+F3DZEX is a 3D based graphics microcode, and the primary graphics microcode used by the Zelda 64 engine. F3DZEX is based off of the F3DEX2 microcode, sharing the same graphics binary interface (GBI). '''GBI''' is a display list interface, used for rendering graphics. Each command is 64 bits long, and is used to instruct both the RSP and the RDP units on the RCP.
-GBI is a collection of 64 bit commands which instruct both the RSP and the RDP units.
+There are no major differences between 2.06H and 2.08J of the F3DZEX microcode.
 == S2DEX ==

← Older revision	Revision as of 16:35, 23 March 2021
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← Older revision	Revision as of 16:22, 23 March 2021
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← Older revision	Revision as of 16:19, 23 March 2021
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← Older revision		Revision as of 20:40, 24 March 2018
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	In the event of a fatal error, the [[Debug Rom]] is capable of generating a dump of the entire display list pipeline for the current frame, sending it to the [[IS64]]. This dump can be triggered with the following cheat code: <tt>80166D28 0000</tt>. Once the dump begins, it's recommended that you set the value back to 0001, since otherwise the game will constantly generate a dump.		In the event of a fatal error, the [[Debug Rom]] is capable of generating a dump of the entire display list pipeline for the current frame, sending it to the [[IS64]]. This dump can be triggered with the following cheat code: <tt>80166D28 0000</tt>. Once the dump begins, it's recommended that you set the value back to 0001, since otherwise the game will constantly generate a dump.
		+
		+	== Unsorted NTSC 1.0 Microcode Notes ==
		+	800060B0, size 0x3E8. Sometime cases it seems only 0x160 is transferred
		+	800E2FC0, size 0x1000 //audio
		+	800E3F70, size 0x1000 //F3DZEX possibly?
		+
		+	0x40 bytes at address 8012BAC0 is transferred to 04000FC0 //DMEM
		+
		+	This seems to be used to store task data. For example [[Graphics Context]]+0x88 stores the data that is later copied to 8012BAC0, which contains the relevant task info
		+
		+	0x3E8 bytes at address 800060B0 is transferred to 04001000 //IMEM

	== Legacy Credits ==		== Legacy Credits ==

@@ Line 40: / Line 40: @@
 Quickly draws a background image. <tt>a</tt> is a pointer to a 0x28 byte data structure
-== Microcode Dump Feature ==
+=== NTSC 1.0 Notes ===
-In the event of a fatal error, the [[Debug Rom]] is capable of generating a dump of the entire microcode pipeline for the current frame, sending it to the [[IS64]]. This dump can be triggered with the following cheat code: <tt>80166D28 0000</tt>. Once the dump begins, it's recommended that you set the value back to 0001, since otherwise the game will constantly generate a dump.
+== Display List Dump Feature ==
 == Legacy Credits ==