Author: Extrems

Makefile.menu2_gc

@@ -79,6 +79,7 @@ OBJ		=main/rom_gc.o \
 		r4300/cop1_s.o \
 		r4300/cop1_d.o \
 		r4300/recomp.o \
+		gc_memory/n64_cic_nus_6105.o \
 		gc_memory/pif.o \
 		r4300/bc.o \
 		r4300/cop1_l.o \
@@ -88,7 +89,6 @@ OBJ		=main/rom_gc.o \
 		main/md5.o \
 		main/savestates_gc.o \
 		r4300/profile.o \
-		main/adler32.o \
 		main/ata.o
 
 OBJ_PPC		=r4300/ppc/MIPS-to-PPC.o \
@@ -102,6 +102,7 @@ OBJ_INPUT	=gc_input/main.o \
 
 OBJ_RSPHLE	=rsp_hle/main.o \
 		rsp_hle/jpeg.o \
+		rsp_hle/idct.o \
 		rsp_hle/ucode3.o \
 		rsp_hle/ucode2.o \
 		rsp_hle/ucode1.o \

Makefile.menu2_wii

@@ -78,6 +78,7 @@ OBJ		=main/rom_gc.o \
 		r4300/cop1_s.o \
 		r4300/cop1_d.o \
 		r4300/recomp.o \
+		gc_memory/n64_cic_nus_6105.o \
 		gc_memory/pif.o \
 		r4300/bc.o \
 		r4300/cop1_l.o \
@@ -87,7 +88,6 @@ OBJ		=main/rom_gc.o \
 		main/md5.o \
 		main/savestates_gc.o \
 		r4300/profile.o \
-		main/adler32.o \
 		main/ata.o
 
 OBJ_PPC		=r4300/ppc/MIPS-to-PPC.o \
@@ -103,6 +103,7 @@ OBJ_INPUT	=gc_input/main.o \
 
 OBJ_RSPHLE	=rsp_hle/main.o \
 		rsp_hle/jpeg.o \
+		rsp_hle/idct.o \
 		rsp_hle/ucode3.o \
 		rsp_hle/ucode2.o \
 		rsp_hle/ucode1.o \

gc_audio/audio.c

@@ -60,6 +60,14 @@ static void aesnd_callback(AESNDPB *pb, uint32_t state)
 	}
 }
 
+static void reset_buffer(void)
+{
+	write_ptr = buffer;
+	read_ptr = buffer;
+	buffered = 0;
+	memset(buffer, 0, BUFFER_SIZE);
+}
+
 EXPORT void CALL AiDacrateChanged(int SystemType)
 {
 	freq = DEFAULT_FREQUENCY;
@@ -85,21 +93,22 @@ EXPORT void CALL AiLenChanged(void)
 	if (audioEnabled) {
 		uint32_t level = IRQ_Disable();
 
-		short *stream = (short *)(AudioInfo.RDRAM + (*AudioInfo.AI_DRAM_ADDR_REG & 0xFFFFFF));
+		void *stream = AudioInfo.RDRAM + (*AudioInfo.AI_DRAM_ADDR_REG & 0xFFFFFF);
 		unsigned int length = *AudioInfo.AI_LEN_REG;
 
-		do {
-			int len = MIN(end_ptr - write_ptr, length);
-			memcpy(write_ptr, stream, len);
-			stream = ((char *)stream + len);
-			
-			write_ptr += len;
-			if (write_ptr >= end_ptr)
-				write_ptr = buffer;
-			buffered += len;
-			
-			length -= len;
-		} while (length > 0);
+		if (buffered + length < BUFFER_SIZE) {
+			do {
+				int size = MIN(end_ptr - write_ptr, length);
+				memcpy(write_ptr, stream, size);
+				stream = (char *)stream + size;
+				
+				write_ptr += size;
+				if (write_ptr >= end_ptr)
+					write_ptr = buffer;
+				buffered += size;
+				length -= size;
+			} while (length > 0);
+		}
 
 		if (scalePitch)
 			AESND_SetVoiceFrequency(voice, freq * (Timers.vis / VILimit));
@@ -129,11 +138,9 @@ EXPORT BOOL CALL InitiateAudio(AUDIO_INFO Audio_Info)
 	return TRUE;
 }
 
-EXPORT void CALL RomOpen()
+EXPORT void CALL RomOpen(void)
 {
-	write_ptr = buffer;
-	read_ptr = buffer;
-	buffered = 0;
+	reset_buffer();
 	AESND_SetVoiceStop(voice, false);
 }
 
@@ -151,6 +158,7 @@ void pauseAudio(void) {
 }
 
 void resumeAudio(void) {
+	reset_buffer();
 	AESND_SetVoiceFrequency(voice, freq);
 	AESND_Pause(!audioEnabled);
 }

gc_memory/MEM2.h

@@ -35,16 +35,15 @@
 #define MEM2_HI   ((char*)0x933E0000)
 #define MEM2_SIZE (MEM2_HI - MEM2_LO)
 
-// Testing the xfb in MEM2 (reduce Texture Cache by 2MB to accomodate)
-/*#define XFB_SIZE (720*480*2) // XFB_SIZE*2 ~= 1.4MB
+// Testing the xfb in MEM2
+#define XFB_SIZE (720*576*2) // XFB_SIZE*2 ~= 1.6MB
 #define XFB0_LO	(MEM2_LO)
 #define XFB1_LO	(XFB0_LO + XFB_SIZE)
-#define XFB_HI	(XFB1_LO + XFB_SIZE)*/
+#define XFB_HI	(XFB1_LO + XFB_SIZE)
 
 // We want 16MB for our ROM Cache
 #define ROMCACHE_SIZE (16*MB)
-#define ROMCACHE_LO   (MEM2_LO)
-//#define ROMCACHE_LO   (XFB_HI)
+#define ROMCACHE_LO   (XFB_HI)
 #define ROMCACHE_HI   (ROMCACHE_LO + ROMCACHE_SIZE)
 
 // We want 8MB for TLB lut's

gc_memory/n64_cic_nus_6105.c

@@ -0,0 +1,119 @@
+/*
+ * Copyright 2011 X-Scale. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice,
+ *       this list of conditions and the following disclaimer.
+ *    2. Redistributions in binary form must reproduce the above copyright 
+ *       notice, this list of conditions and the following disclaimer in the 
+ *       documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY X-Scale ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
+ * EVENT SHALL X-Scale OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are 
+ * those of the authors and should not be interpreted as representing official 
+ * policies, either expressed or implied, of X-Scale.
+ *
+ * This software provides an algorithm that emulates the protection scheme of 
+ * N64 PIF/CIC-NUS-6105, by determining the proper response to each challenge. 
+ * It was synthesized after a careful, exhaustive and detailed analysis of the 
+ * challenge/response pairs stored in the 'pif2.dat' file from Project 64. 
+ * These challenge/response pairs were the only resource used during this 
+ * project. There was no kind of physical access to N64 hardware.
+ *
+ * This project would have never been possible without the contribuitions of 
+ * the following individuals and organizations:
+ *
+ * - Oman: For being at the right place at the right time and being brave 
+ *       enough to pay a personal price so we could understand in a much deeper
+ *       way how this magical console really works. We owe you so much.
+ *
+ * - Jovis: For all the positive energy and impressive hacking spirit that you
+ *       shared with the N64 community. You were absolutely instrumental in 
+ *       several key events that shaped the N64 community in the last 14 years.
+ *       Even if you're not physically with us anymore, your heritage, your 
+ *       knowledge and your attitude will never be forgotten. 
+ *
+ *          'The candle that burns twice as bright burns half as long.'
+ *
+ * - LaC: For the endless contributions that you've given to the N64 community 
+ *       since the early days, when N64 was the next big thing. I've always 
+ *       admired the deep knowledge that you've gathered about the most little 
+ *       hardware details. Recently, you challanged us to find a small and 
+ *       concise algorithm that would emulate the behaviour of CIC-NUS-6105
+ *       challenge/response protection scheme and here is the final result. 
+ *       LaC, Oman and Jovis were definitly the dream team of N64 reversing in 
+ *       the late 90's. Without your contributions, we would be much poorer.
+ *
+ * - marshall: For keeping the N64 scene alive during the last decade, when 
+ *       most people lost interest and moved along to different projects. You 
+ *       are the force that has been keeping us all together in the later 
+ *       years. When almost nobody cared about N64 anymore, you were always 
+ *       there, spreading the word, developing in the console, and lately, 
+ *       making impressive advances on the hardware side. I wish the best 
+ *       success to your new 64drive project. 
+ *
+ * - hcs: For your contributions to the better understanding of the inner 
+ *       workings of the Reality Co-Processor (RCP). Your skills have impressed
+ *       me for a long time now. And without your precious help by sharing your
+ *       kownledge, I would have never understood the immense importance of 
+ *       Oman, Jovis and LaC achievements. Thank you !
+ *
+ * - Azimer & Tooie: For sharing with the N64 community your findings about the
+ *       challenge/response pair used in 'Jet Force Gemini' and the 267 
+ *       challenge/response pairs used in 'Banjo Tooie', all stored in the 
+ *       'pif2.dat' file of Project 64. They were instrumental to the final
+ *       success of this endeavour.
+ *
+ * - Silicon Graphics, Inc. (SGI): For creating MIPS R4000, MIPS R4300 and 
+ *       Reality Co-Processor (RCP). You were the ultimate dream creator during
+ *       the late 80's and early 90's. A very special word of gratitude goes to
+ *       the two teams that during those years created RCP and MIPS R4300. They
+ *       were technological breakthroughs back then.
+ * 
+ * On a personal note, I would like to show my deepest gratitude to _Bijou_, 
+ * for being always a source of endless hope and inspiration. 
+ *
+ *   -= X-Scale =- (#n64dev@EFnet)
+ */
+
+#include "n64_cic_nus_6105.h"
+
+void n64_cic_nus_6105(char chl[], char rsp[], int len)
+{
+    static char lut0[0x10] = {
+        0x4, 0x7, 0xA, 0x7, 0xE, 0x5, 0xE, 0x1, 
+        0xC, 0xF, 0x8, 0xF, 0x6, 0x3, 0x6, 0x9
+    };
+    static char lut1[0x10] = {
+        0x4, 0x1, 0xA, 0x7, 0xE, 0x5, 0xE, 0x1, 
+        0xC, 0x9, 0x8, 0x5, 0x6, 0x3, 0xC, 0x9
+    };
+    char key, *lut;
+    int i, sgn, mag, mod;
+        
+    for (key = 0xB, lut = lut0, i = 0; i < len; i++) {
+        rsp[i] = (key + 5 * chl[i]) & 0xF;
+        key = lut[(int) rsp[i]];
+        sgn = (rsp[i] >> 3) & 0x1;
+        mag = ((sgn == 1) ? ~rsp[i] : rsp[i]) & 0x7;
+        mod = (mag % 3 == 1) ? sgn : 1 - sgn;
+        if (lut == lut1 && (rsp[i] == 0x1 || rsp[i] == 0x9))
+            mod = 1;
+        if (lut == lut1 && (rsp[i] == 0xB || rsp[i] == 0xE))
+            mod = 0;
+        lut = (mod == 1) ? lut1 : lut0;
+    }
+}
+

gc_memory/n64_cic_nus_6105.h

@@ -0,0 +1,98 @@
+/*
+ * Copyright 2011 X-Scale. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice,
+ *       this list of conditions and the following disclaimer.
+ *    2. Redistributions in binary form must reproduce the above copyright 
+ *       notice, this list of conditions and the following disclaimer in the 
+ *       documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY X-Scale ``AS IS'' AND ANY EXPRESS OR IMPLIED 
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
+ * EVENT SHALL X-Scale OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are 
+ * those of the authors and should not be interpreted as representing official 
+ * policies, either expressed or implied, of X-Scale.
+ *
+ * This software provides an algorithm that emulates the protection scheme of 
+ * N64 PIF/CIC-NUS-6105, by determining the proper response to each challenge. 
+ * It was synthesized after a careful, exhaustive and detailed analysis of the 
+ * challenge/response pairs stored in the 'pif2.dat' file from Project 64. 
+ * These challenge/response pairs were the only resource used during this 
+ * project. There was no kind of physical access to N64 hardware.
+ *
+ * This project would have never been possible without the contribuitions of 
+ * the following individuals and organizations:
+ *
+ * - Oman: For being at the right place at the right time and being brave 
+ *       enough to pay a personal price so we could understand in a much deeper
+ *       way how this magical console really works. We owe you so much.
+ *
+ * - Jovis: For all the positive energy and impressive hacking spirit that you
+ *       shared with the N64 community. You were absolutely instrumental in 
+ *       several key events that shaped the N64 community in the last 14 years.
+ *       Even if you're not physically with us anymore, your heritage, your 
+ *       knowledge and your attitude will never be forgotten. 
+ *
+ *          'The candle that burns twice as bright burns half as long.'
+ *
+ * - LaC: For the endless contributions that you've given to the N64 community 
+ *       since the early days, when N64 was the next big thing. I've always 
+ *       admired the deep knowledge that you've gathered about the most little 
+ *       hardware details. Recently, you challanged us to find a small and 
+ *       concise algorithm that would emulate the behaviour of CIC-NUS-6105
+ *       challenge/response protection scheme and here is the final result. 
+ *       LaC, Oman and Jovis were definitly the dream team of N64 reversing in 
+ *       the late 90's. Without your contributions, we would be much poorer.
+ *
+ * - marshall: For keeping the N64 scene alive during the last decade, when 
+ *       most people lost interest and moved along to different projects. You 
+ *       are the force that has been keeping us all together in the later 
+ *       years. When almost nobody cared about N64 anymore, you were always 
+ *       there, spreading the word, developing in the console, and lately, 
+ *       making impressive advances on the hardware side. I wish the best 
+ *       success to your new 64drive project. 
+ *
+ * - hcs: For your contributions to the better understanding of the inner 
+ *       workings of the Reality Co-Processor (RCP). Your skills have impressed
+ *       me for a long time now. And without your precious help by sharing your
+ *       kownledge, I would have never understood the immense importance of 
+ *       Oman, Jovis and LaC achievements. Thank you !
+ *
+ * - Azimer & Tooie: For sharing with the N64 community your findings about the
+ *       challenge/response pair used in 'Jet Force Gemini' and the 267 
+ *       challenge/response pairs used in 'Banjo Tooie', all stored in the 
+ *       'pif2.dat' file of Project 64. They were instrumental to the final
+ *       success of this endeavour.
+ *
+ * - Silicon Graphics, Inc. (SGI): For creating MIPS R4000, MIPS R4300 and 
+ *       Reality Co-Processor (RCP). You were the ultimate dream creator during
+ *       the late 80's and early 90's. A very special word of gratitude goes to
+ *       the two teams that during those years created RCP and MIPS R4300. They
+ *       were technological breakthroughs back then.
+ * 
+ * On a personal note, I would like to show my deepest gratitude to _Bijou_, 
+ * for being always a source of endless hope and inspiration. 
+ *
+ *   -= X-Scale =- (#n64dev@EFnet)
+ */
+
+#ifndef N64_CIC_NUS_6105_H
+#define N64_CIC_NUS_6105_H
+
+#define CHL_LEN 0x20
+
+void n64_cic_nus_6105(char chl[], char rsp[], int len);
+
+#endif /* N64_CIC_NUS_6105_H */