More 2.12 regions, WIP 2.13

Signed-off-by: hax <hax@lainlounge.xyz>

PAYLOADS/1.00-2.13/Mainrules.mk

@@ -0,0 +1,77 @@
+EE_CC = ee-gcc
+EE_LD = ee-ld
+EE_AS = ee-as
+EE_OBJCOPY = ee-objcopy
+
+IOP_CC = iop-gcc
+IOP_LD = iop-ld
+IOP_AS = iop-as
+IOP_OBJCOPY = iop-objcopy
+IOP_OBJDUMP = iop-objdump
+
+IOP_SYMBOLS = -DREAD_SECTORS_210=$(IOP_READ_SECTORS_210) -DORIGINAL_RETURN_ADDRESS_210=$(IOP_ORIGINAL_RETURN_ADDRESS_210) -DRETURN_ADDRESS_LOCATION_210=$(IOP_RETURN_ADDRESS_LOCATION_210) \
+	-DREAD_SECTORS_212=$(IOP_READ_SECTORS_212) -DORIGINAL_RETURN_ADDRESS_212=$(IOP_ORIGINAL_RETURN_ADDRESS_212) -DRETURN_ADDRESS_LOCATION_212=$(IOP_RETURN_ADDRESS_LOCATION_212) \
+	-DREAD_SECTORS_213=$(IOP_READ_SECTORS_213) -DORIGINAL_RETURN_ADDRESS_213=$(IOP_ORIGINAL_RETURN_ADDRESS_213) -DRETURN_ADDRESS_LOCATION_213=$(IOP_RETURN_ADDRESS_LOCATION_213) \
+	-DREAD_SECTORS_110=$(IOP_READ_SECTORS_110) -DORIGINAL_RETURN_ADDRESS_110=$(IOP_ORIGINAL_RETURN_ADDRESS_110) -DRETURN_ADDRESS_LOCATION_110=$(IOP_RETURN_ADDRESS_LOCATION_110)
+
+IOP_CFLAGS = -O2 -G 0 -nostartfiles -nostdlib -ffreestanding -g $(IOP_SYMBOLS)
+
+EE_CFLAGS = -O2 -G 0 -nostartfiles -nostdlib -ffreestanding -Wl,-z,max-page-size=0x1
+
+IOP_STAGE1_SIZE_210_212 = `stat -c '%s' stage1_210_212.iop.bin`
+IOP_STAGE1_SIZE_213 = `stat -c '%s' stage1_213.iop.bin`
+IOP_PAYLOAD_SIZE = `stat -c '%s' ioppayload.iop.bin`
+
+dvd.iso: dvd.base.iso stage1_210_212.iop.bin stage1_213.iop.bin ioppayload.iop.bin
+	#genisoimage -udf -o dvd.iso udf/
+	# @echo Insert 0x00000048 to offset 0x0818AC in dvd.iso
+	# @echo Insert 0x00004000 to offset 0x0818B0 in dvd.iso
+	# @echo Insert 0x000B7548 to offset 0x0818F4 in dvd.iso
+
+	# For now it's easier to just use a base dvd rather than attempting to generate an image and patch it
+	cp dvd.base.iso dvd.iso
+
+	# Return address (2.10 - 2.13) 0x00818f4 = 530676
+	printf $(STAGE1_LOAD_ADDRESS_STRING_210_212) | dd of=dvd.iso bs=1 seek=530676 count=4 conv=notrunc
+
+	# Return address 1.10 (0x000818bc = 530620)
+	printf $(STAGE1_LOAD_ADDRESS_STRING_110) | dd of=dvd.iso bs=1 seek=530620 count=4 conv=notrunc
+
+	# Old toolchains don't support this option, so just copy byte-by-byte...
+	# bs=4096 iflag=skip_bytes,count_bytes
+	
+	dd if=stage1_210_212.iop.bin of=dvd.iso bs=1 seek=$(STAGE1_ISO_210_212) count=$(IOP_STAGE1_SIZE_210_212) conv=notrunc
+	dd if=stage1_213.iop.bin of=dvd.iso bs=1 seek=$(STAGE1_ISO_213) count=$(IOP_STAGE1_SIZE_213) conv=notrunc
+	
+	# 0x700000 = 7340032
+	dd if=ioppayload.iop.bin of=dvd.iso bs=1 seek=7340032 count=$(IOP_PAYLOAD_SIZE) conv=notrunc
+
+%.iop.bin: %.iop.elf
+	$(IOP_OBJCOPY) -O binary $< $@
+
+%.iop.o: %.iop.S
+	$(IOP_AS) $< -o $@
+
+stage1_210_212.iop.elf: stage1_210_212.iop.S ioppayload.iop.bin
+	$(IOP_OBJDUMP) -t ioppayload.iop.elf | grep " _start"
+	$(IOP_CC) $< -DENTRY=$(IOP_PAYLOAD_ENTRY) -DIOP_PAYLOAD_SIZE=$(IOP_PAYLOAD_SIZE) $(IOP_CFLAGS) -o $@
+
+stage1_213.iop.elf: stage1_213.iop.S ioppayload.iop.bin
+	$(IOP_OBJDUMP) -t ioppayload.iop.elf | grep " _start"
+	$(IOP_CC) $< -DENTRY=$(IOP_PAYLOAD_ENTRY) -DIOP_PAYLOAD_SIZE=$(IOP_PAYLOAD_SIZE) $(IOP_CFLAGS) -o $@
+
+%.iop.elf: %.iop.c eepayload.ee.bin
+	$(IOP_CC) -Ttext=$(IOP_PAYLOAD_ADDRESS) -DLOAD_ELF_FROM_OFFSET=$(LOAD_ELF_FROM_OFFSET) ioppayload.iop.c $(IOP_CFLAGS) -o $@
+
+
+%.ee.bin: %.ee.elf
+	$(EE_OBJCOPY) -O binary $< $@ -Wl,-z,max-page-size=0x1
+
+%.ee.o: %.ee.S
+	$(EE_AS) $< -o $@
+
+eepayload.ee.elf: eecrt0.ee.o syscalls.ee.o eepayload.ee.c
+	$(EE_CC) -Ttext=$(EE_PAYLOAD_ADDRESS) $^ $(EE_CFLAGS) -o $@
+
+clean:
+	rm -rf *.elf *.bin *.o dvd.iso

PAYLOADS/1.00-2.13/eecrt0.ee.S

@@ -0,0 +1,25 @@
+# ElReino & CTurt 2020
+
+.section .text.startup
+
+.global _start
+_start:
+	# Point stack to end of scratchpad RAM
+	#la $sp, 0x70004000
+
+.global main
+	#la $v1, 0x01
+	#la $a0, 0x7f
+	#syscall 0x01 # ResetEE
+	
+	la $a0, main
+	la $a1, 0
+	la $a2, 0
+	la $a3, 0
+
+	jr $a0
+
+# Don't use on phat PS2... completely broken syscall
+#ExecPS2:
+#	la $v1, 0x07
+#	syscall 0x07 # ExecPS2

PAYLOADS/1.00-2.13/eepayload.ee.c

@@ -0,0 +1,67 @@
+// ElReino & CTurt 2020
+
+//int (*SifIopReset)(char *, int) = (void *)0x85360;
+//void (*SifInitRpc)(int) = (void *)0x84500;
+//void (*SifExitRpc)(void) = (void *)0x84690;
+
+extern void SifWriteBackDCache(void *ptr, int size);
+extern int SifSetReg(unsigned int register_num, unsigned int register_value);
+extern int SifGetReg(unsigned int register_num);
+
+static int SifIopSync(void) {
+	#define SIF_REG_SMFLAG 4
+	#define SIF_STAT_BOOTEND 0x40000
+	return((SifGetReg(SIF_REG_SMFLAG) & SIF_STAT_BOOTEND) != 0);
+}
+
+static void flush(void) {
+	asm volatile("la $v1, 0x64; la $a0, 0; syscall 0x64"); // FlushCache data writeback
+	asm volatile("la $v1, 0x64; la $a0, 2; syscall 0x64"); // FlushCache instruction invalidate
+}
+
+ int GetThreadId(void);
+void ChangeThreadPriority(int thread_id, int priority);
+int CancelWakeupThread(int thread_id);
+void TerminateThread(int thread_id);
+void DeleteThread(int thread_id);
+
+static void TerminateAllThreads(void) {
+    int i, ThreadID;
+
+    ThreadID=GetThreadId();
+    ChangeThreadPriority(ThreadID, 0);
+    CancelWakeupThread(ThreadID);
+    for(i=1; i<256; i++){    //Skip idle thread.
+        if(i!=ThreadID){
+            TerminateThread(i);
+            DeleteThread(i);
+        }
+    }
+}
+
+int main(void) {
+	// ExecPS2 is broken on Phat PS2... manually kill other threads instead
+	TerminateAllThreads();
+
+	// Signal IOP that EE is Ready, willing, and fully enabled!
+	SifSetReg(3, 1);
+
+	volatile int *waitAddress = (void *)0x21FFF7F0;
+	while(!*waitAddress);
+
+	volatile void **entry_point_address = (void *)0x01FFF7E0;
+
+	// cdrom0:
+	volatile void **argument = (void *)0x01FFF7D0;
+	*(volatile int *)0x01FFF7D0 = 0x01FFF7D8;
+	*(volatile int *)0x01FFF7D8 = 0x6F726463;
+	*(volatile int *)0x01FFF7DC = 0x003A306D;
+
+	flush();
+	
+	//SifIopReset("rom0:UDNL rom0:EELOADCNF", 0);
+	//while(!SifIopSync());
+
+	//ExecPS2(*entry_point_address, 0, 0, 0);
+	ExecPS2(*entry_point_address, 0, 1, argument); // kHn: arg == cdrom0:
+}

PAYLOADS/1.00-2.13/emulator.mk

@@ -0,0 +1,37 @@
+#STAGE1_LOAD_ADDRESS_110 = 0xa00b66a8
+#STAGE1_LOAD_ADDRESS_STRING_110 = '\xa8\x66\x0b\xa0'
+
+STAGE1_LOAD_ADDRESS_210_212 = 0xa00b7548
+STAGE1_LOAD_ADDRESS_STRING_210_212 = '\x48\x75\x0b\xa0'
+
+STAGE1_LOAD_ADDRESS_213 = 0xa00b6fc8
+STAGE1_LOAD_ADDRESS_STRING_213 = '\xc8\x6f\x0b\xa0'
+
+STAGE1_ISO_210_212 = 532728 # 0x820f8
+STAGE1_ISO_213 = 534136 # 0x82678
+
+IOP_READ_SECTORS_110 = 0xb19e4
+IOP_READ_SECTORS_210 = 0xb260c
+IOP_READ_SECTORS_212 = 0xb25f8
+IOP_READ_SECTORS_213 = 0xb21f8
+IOP_ORIGINAL_RETURN_ADDRESS_210 = 0xb3630
+IOP_ORIGINAL_RETURN_ADDRESS_212 = 0xB35D8
+IOP_ORIGINAL_RETURN_ADDRESS_213 = 0xB31EC
+IOP_RETURN_ADDRESS_LOCATION_210 = 0x1f62ac
+IOP_RETURN_ADDRESS_LOCATION_212 = 0x1f62b4
+IOP_RETURN_ADDRESS_LOCATION_213 = 0x1F62B4
+
+
+#IOP_PAYLOAD_ENTRY = `$(IOP_OBJDUMP) -t ioppayload.iop.elf | grep " _start"`
+IOP_PAYLOAD_ENTRY = 0xa00fd178 # Set this manually for now.
+
+IOP_PAYLOAD_ADDRESS = 0xa00fd000
+
+EE_PAYLOAD_ADDRESS = 0x01fff800
+
+#isoinfo -l -i dvd.iso | grep "BOOT.ELF"
+#var=`isoinfo -l -i dvd.iso | grep "BOOT.ELF" | grep -o -P "[0-9]*? -"`
+# LOAD_ELF_FROM_OFFSET = 
+LOAD_ELF_FROM_OFFSET = 0x5BB000 # Set this manually for now
+
+include Mainrules.mk

PAYLOADS/1.00-2.13/hardware.mk

@@ -0,0 +1,36 @@
+
+
+
+STAGE1_LOAD_ADDRESS_210_212 = 0xa0062C48
+STAGE1_LOAD_ADDRESS_STRING_210_212 = '\x48\x2c\x06\xa0'
+
+STAGE1_LOAD_ADDRESS_213 = 0xA00626C8 # 0xa00b6fc8 + 0x5c700 - 0xb1000
+STAGE1_LOAD_ADDRESS_STRING_213 = '\xc8\x26\x06\xa0'
+
+STAGE1_ISO_210_212 = 532728 # 0x820f8
+STAGE1_ISO_213 = 534136 # 0x82678
+
+IOP_READ_SECTORS_210 = 0x5DD0C # 0xb260c + 0x5c700 - 0xb1000
+IOP_READ_SECTORS_212 = 0x5DCF8 # 0xb25f8 + 0x5c700 - 0xb1000
+IOP_READ_SECTORS_213 = 0x5D8F8 # 0xb21f8 + 0x5c700 - 0xb1000
+IOP_ORIGINAL_RETURN_ADDRESS_210 = 0x5ED30 # 0xb3630 + 0x5c700 - 0xb1000
+IOP_ORIGINAL_RETURN_ADDRESS_212 = 0x5ECD8 # 0xB35D8 + 0x5c700 - 0xb1000
+IOP_ORIGINAL_RETURN_ADDRESS_213 = 0x5E8EC # 0xB31EC + 0x5c700 - 0xb1000
+IOP_RETURN_ADDRESS_LOCATION_210 = 0x1F30AC # 0x1f62ac + 0x1F3058 - 0x1f6258
+IOP_RETURN_ADDRESS_LOCATION_212 = 0x1F30B4 # 0x1f62b4 + 0x1F3058 - 0x1f6258
+IOP_RETURN_ADDRESS_LOCATION_213 = 0x1F30B4 # 0x1F62B4 + 0x1F3058 - 0x1f6258
+
+
+#IOP_PAYLOAD_ENTRY = `$(IOP_OBJDUMP) -t ioppayload.iop.elf | grep " _start"`
+IOP_PAYLOAD_ENTRY = 0xa00fd178 # Set this manually for now.
+
+IOP_PAYLOAD_ADDRESS = 0xa00fd000
+
+EE_PAYLOAD_ADDRESS = 0x01fff800
+
+#isoinfo -l -i dvd.iso | grep "BOOT.ELF"
+#var=`isoinfo -l -i dvd.iso | grep "BOOT.ELF" | grep -o -P "[0-9]*? -"`
+# LOAD_ELF_FROM_OFFSET = 
+LOAD_ELF_FROM_OFFSET = 0x5BB000 # Set this manually for now
+
+include Mainrules.mk

PAYLOADS/1.00-2.13/ioppayload.iop.c

@@ -0,0 +1,290 @@
+// ElReino & CTurt
+
+/* Todo: seperate these settings to an include file.
+ */
+#define EE_CRT0_ADDRESS ((void*)0x21FFF800)
+#define EE_WAIT_ADDRESS ((void*)0x01FFF7F0)
+#define EE_ENTRYPOINT_ADDRESS ((void *)0x01FFF7E0)
+//#define EE_DEBUG_ADDRESS ((void *)0x01FFF7D0)
+
+struct SifDmaTransfer {
+   void				*src,
+      				*dest;
+   int				size;
+   int				attr;
+} __attribute__ ((aligned(8)));
+
+#define ELF_PT_LOAD 1
+
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+typedef unsigned int size_t;
+
+typedef struct {
+	u8 ident[16];
+	u16 type;
+	u16 machine;
+	u32 version;
+	u32 entry;
+	u32 phoff;
+	u32 shoff;
+	u32 flags;
+	u16 ehsize;
+	u16 phentsize;
+	u16 phnum;
+	u16 shentsize;
+	u16 shnum;
+	u16 shstrndx;
+} elf_header_t;
+
+typedef struct {
+	u32 type;
+	u32 offset;
+	void *vaddr;
+	u32 paddr;
+	u32 filesz;
+	u32 memsz;
+	u32 flags;
+	u32 align;
+} elf_pheader_t;
+
+#define SECTOR_SIZE 0x800
+
+#define min(a, b) (((a) < (b)) ? (a) : (b))
+
+int (*readSectors)(int count, int sector, void *destination);
+
+//int (*sceSifSetDma)(struct SifDmaTransfer *, int num) = (void *)0x16fc8;
+//int (*sceSifDmaStat)(int trid) = (void *)0x17170;
+//void (*flushIcache)(void) = (void*)0x2f40;
+//void (*flushDcache)(void) = (void*)0x3044;
+//void (*printf)(char *, ...) = (void *)0x1ab84; // 2.10
+//void (*printf)(char *, ...) = (void *)0x155f8; // 2.12
+
+int (*sceSifSetDma)(struct SifDmaTransfer *, int num);
+int (*sceSifDmaStat)(int trid);
+
+static void transfer_to_ee(void *dest, void *src, unsigned int size);
+static void *memcpy(void *dest, void *src, unsigned int n);
+static void *memset(void *s, int c, unsigned int n);
+static void memset_ee(void *s, int c, unsigned int n);
+
+//#include "iopresolve.h"
+
+#define BD2 (*(volatile int *)0xBD000020) //msflag
+
+static void readData(void *dest, unsigned int offset, size_t n) {
+	//unsigned char buffer[SECTOR_SIZE];
+	//unsigned char *buffer = (void *)0xfd000;
+	unsigned char *buffer = (void *)0xba000; // single
+
+	unsigned int copied = 0;
+	#define remaining (n - copied)
+
+	if(offset % SECTOR_SIZE) {
+		readSectors(1, offset / SECTOR_SIZE, buffer);
+		memcpy(dest, buffer + offset % SECTOR_SIZE, min(SECTOR_SIZE - (offset % SECTOR_SIZE), n));
+		copied += min(SECTOR_SIZE - (offset % SECTOR_SIZE), n);
+	}
+
+	if(remaining >= SECTOR_SIZE) {
+		readSectors(remaining / SECTOR_SIZE, (offset + copied) / SECTOR_SIZE, dest + copied);
+		copied += (remaining / SECTOR_SIZE) * SECTOR_SIZE;
+	}
+	
+	if(remaining > 0) {
+		readSectors(1, (offset + copied) / SECTOR_SIZE, buffer);
+		memcpy(dest + copied, buffer, remaining);
+	}
+
+	#undef remaining
+}
+
+// Read data but don't care about over/under writing to dest
+static void readDataUnsafe(void *dest, unsigned int offset, size_t n) {
+	unsigned int sectorAlignedOffset = offset & ~(SECTOR_SIZE - 1);
+	unsigned int underflow = offset - sectorAlignedOffset;
+
+	readSectors((n + underflow + SECTOR_SIZE - 1) / SECTOR_SIZE, sectorAlignedOffset / SECTOR_SIZE, dest - underflow);
+}
+
+void _start(void) {
+	extern unsigned char ee_crt0[];
+	extern unsigned int ee_crt0_size;
+	void *return_address[4] __attribute__ ((aligned (16))) = { EE_CRT0_ADDRESS, 0, 0, 0 };
+	int one __attribute__ ((aligned (16))) = 1;
+	int i;
+
+	//sceSifSetDma = resolve("sifman", 7);
+	//sceSifDmaStat = resolve("sifman", 8);
+
+	sceSifSetDma = (void *)0x16fc8;
+	sceSifDmaStat = (void *)0x17170;
+
+	unsigned int addiu_magic = 0x27bdffc8; // addiu $sp, $sp, -0x38
+	//if(*(unsigned int *)READ_SECTORS_110 == addiu_magic) readSectors = (void *)READ_SECTORS_110;
+	 if(*(unsigned int *)READ_SECTORS_210 == addiu_magic) readSectors = (void *)READ_SECTORS_210;
+	else if(*(unsigned int *)READ_SECTORS_212 == addiu_magic) readSectors = (void *)READ_SECTORS_212;
+	else if(*(unsigned int *)READ_SECTORS_213 == addiu_magic) readSectors = (void *)READ_SECTORS_213;
+
+	transfer_to_ee(EE_CRT0_ADDRESS, ee_crt0, ee_crt0_size);
+	
+	// Corrupt all known return addresses in the stack, there might be a more universal way for IOP to redirect EE...
+	transfer_to_ee((void *)0x14A5FF0, &return_address, sizeof(return_address)); // 2.10E/A
+	transfer_to_ee((void *)0x10007F0, &return_address, sizeof(return_address)); // 2.10J
+	transfer_to_ee((void *)0x12D1C70, &return_address, sizeof(return_address)); // 2.10U
+	
+	transfer_to_ee((void *)0x12B8CF0, &return_address, sizeof(return_address)); // 2.12U
+	transfer_to_ee((void *)0x148D0F0, &return_address, sizeof(return_address)); // 2.12G
+	transfer_to_ee((void *)0xFE5FF0, &return_address, sizeof(return_address)); // 2.12J
+
+	transfer_to_ee((void *)0x01477B80, &return_address, sizeof(return_address)); // 2.13E/A
+
+	// Clear bit 0 of 0x208bb710 to make EE exit loop waiting for IOP, and return to our above payload
+	unsigned int loopValue = 0x010004;
+	//transfer_to_ee((void *)0x208bb710, &loopValue, sizeof(loopValue)); // 2.10E
+	transfer_to_ee((void *)0x2087d110, &loopValue, sizeof(loopValue)); // 2.13E
+
+	// We wait for EE side to be ready before sending ELF.
+	while(!(SifGetMSFlag() & 1));
+	SifSetMSFlag(3);
+	
+	//unsigned char *buffer = (void *)0xfe000;
+	unsigned char *buffer = (void *)0xBB800;
+	size_t sizeofbuffer = 2 * SECTOR_SIZE; // todo: find a nice large space 4 sectors maybe
+
+	elf_header_t eh;
+	readData(&eh, LOAD_ELF_FROM_OFFSET, sizeof(elf_header_t));
+
+	elf_pheader_t eph[eh.phnum];
+	readData(&eph, LOAD_ELF_FROM_OFFSET + eh.phoff, sizeof(elf_pheader_t) * eh.phnum);
+	
+	for (i = 0; i < eh.phnum; i++) {
+		if (eph[i].type != ELF_PT_LOAD)
+			continue;
+
+		// TODO: handle non-16byte aligned transfers
+
+		unsigned int copied = 0;
+		int remaining = eph[i].filesz;
+		while(remaining > 0) {
+			unsigned int k = min(remaining, sizeofbuffer);
+			k = (k + 0xf) & ~0xf;
+
+			// If offset is not aligned to a sector, start with a smaller transfer to get it aligned for future reads
+			if((eph[i].offset + copied) & (SECTOR_SIZE - 1)) k = SECTOR_SIZE - (eph[i].offset + copied) & (SECTOR_SIZE - 1);
+			
+			//readData(buffer, LOAD_ELF_FROM_OFFSET + eph[i].offset + copied, k);
+			readDataUnsafe(buffer, LOAD_ELF_FROM_OFFSET + eph[i].offset + copied, k);
+
+			transfer_to_ee(eph[i].vaddr + copied, buffer, k);
+			copied += k;
+			remaining -= k;
+		}
+
+		copied = 0;
+		remaining = eph[i].memsz - eph[i].filesz;
+
+		if(remaining > 0) {
+			// First transfer needs to respect if load size isn't multiple of 16 bytes and not memset 0 over the final eph[i].filesz % 16 bytes
+			if(eph[i].filesz % 16) {
+				readData(buffer, LOAD_ELF_FROM_OFFSET + eph[i].offset + eph[i].filesz - (eph[i].filesz % 16), eph[i].filesz % 16);
+				memset(buffer + (eph[i].filesz % 16), 0, 16 - (eph[i].filesz % 16));
+				transfer_to_ee(eph[i].vaddr + eph[i].filesz - (eph[i].filesz % 16), buffer, 16);
+
+				copied += 16 - (eph[i].filesz % 16);
+				remaining -= 16 - (eph[i].filesz % 16);
+			}
+
+			memset(buffer, 0, sizeofbuffer);
+		}
+		while(remaining > 0) {
+			unsigned int k = min(remaining, sizeofbuffer);
+			k = (k + 0xf) & ~0xf;
+			
+			transfer_to_ee(eph[i].vaddr + eph[i].filesz + copied, buffer, k);
+			copied += k;
+			remaining -= k;
+		}
+	}
+	
+	transfer_to_ee(EE_ENTRYPOINT_ADDRESS, &eh.entry, sizeof(one));
+	
+	// Signal EE that the ELF is loaded and ready to execute.
+	transfer_to_ee(EE_WAIT_ADDRESS, &one, sizeof(one));
+
+	//int loopValueJ = 0;
+	//transfer_to_ee((void *)0x205ea210, &loopValueJ, sizeof(loopValueJ)); // 2.10J
+}
+
+/* dest and src should be aligned to 16 byte boundary
+ */
+static void transfer_to_ee(void *dest, void *src, unsigned int size)
+{
+	int trid;
+	
+	size = size & 0x3FFFFFFF;
+	struct SifDmaTransfer t = { src, dest, size, 0 };
+	
+	/* These could be sent in parallel, but is it really worth it?
+	 */
+	trid = sceSifSetDma(&t, 1);
+	while(sceSifDmaStat(trid) > -1){};
+}
+
+static void *memcpy(void *dest, void *src, unsigned int n)
+{ 
+	int i;
+	
+	for(i = 0; i < n; i++)
+		((unsigned char *)dest)[i] = ((unsigned char *)src)[i];
+	
+	return dest;
+}
+
+static void *memset(void *s, int c, unsigned int n)
+{
+	int i;
+	
+	for(i = 0; i < n; i++)
+		((unsigned char *)s)[i] = c;
+	
+	return s;
+}
+
+static int SifGetMSFlag()
+{
+	int a, b;
+	
+	b = BD2;
+	do {
+		a=b;
+		b=BD2;
+	} while(a != b);
+	
+	return a;
+}
+
+static int SifSetMSFlag(unsigned int value)
+{
+	int a, b;
+	
+	BD2 = value;
+	
+	b = BD2;
+	do {
+		a=b;
+		b=BD2;
+	} while(a != b);
+	
+	return a;
+}
+
+asm("\n\
+.global ee_crt0\n\
+ee_crt0:\n\
+.align 8\n\
+.incbin \"eepayload.ee.bin\"\n\
+ee_crt0_size: .word . - ee_crt0\n\
+");

PAYLOADS/1.00-2.13/iopresolve.h

@@ -0,0 +1,220 @@
+//typedef unsigned char u8;
+//typedef unsigned short u16;
+//typedef unsigned int u32;
+
+typedef void *pointer;
+
+#define NULL 0
+
+typedef struct _smod_mod_info {
+	//struct _smod_mod_info *next;
+	pointer next;
+	/** A pointer to the name in IOP RAM, this must be smem_read().  */
+	//char	*name;
+	pointer name;
+	u16	version;
+	/** For MODLOAD shipped with games. The old MODLOAD module from boot ROMs do not use a flags field.  */
+	u16	newflags;
+	u16	id;
+	u16	unused;
+	/** _start */
+	u32	entry;
+	u32	gp;
+	u32	text_start;
+	u32	text_size;
+	u32	data_size;
+	u32	bss_size;
+	u32	unused1;
+	u32	unused2;
+} smod_mod_info_t;
+
+typedef struct _slib_imp_list {
+	u8	magic;
+	//struct _slib_imp_list *next;
+	pointer next;
+	u16	version;
+	u16	flags;
+	u8	name[8];
+	//void	*imports[0];
+	pointer imports[0];
+} slib_imp_list_t;
+
+typedef struct _slib_exp_lib {
+	//struct _slib_exp_lib *prev;
+	pointer prev;
+	//struct _slib_imp_list *caller;
+	pointer caller;
+	u16	version;
+	u16	flags;
+	u8	name[8];
+	//void	*exports[0];
+	pointer exports[0];
+} slib_exp_lib_t;
+
+typedef struct _slib_exp_lib_list {
+	//struct _slib_exp_lib *tail;
+	pointer tail;
+	//struct _slib_exp_lib *head;
+	pointer head;
+} slib_exp_lib_list_t;
+
+#define SMEM_BUF_SIZE	0x300	//Must be large enough to accommodate all operations.
+
+struct smem_buf {
+	union {
+		u8 bytes[SMEM_BUF_SIZE / sizeof(u8)];
+		u32 words[SMEM_BUF_SIZE / sizeof(u32)];
+		smod_mod_info_t mod_info;
+		slib_exp_lib_t exp_lib;
+	};
+};
+
+
+
+size_t strlen(const char *str) {
+    const char *s;
+    for (s = str; *s; ++s);
+    return (s - str);
+}
+
+int memcmp(const char *cs_in, const char *ct_in, size_t n) {
+  size_t i;  
+  const unsigned char * cs = (const unsigned char*) cs_in;
+  const unsigned char * ct = (const unsigned char*) ct_in;
+
+  for (i = 0; i < n; i++, cs++, ct++)
+  {
+    if (*cs < *ct)
+    {
+      return -1;
+    }
+    else if (*cs > *ct)
+    {
+      return 1;
+    }
+  }
+  return 0;
+} 
+
+
+
+slib_exp_lib_list_t _slib_cur_exp_lib_list;
+
+struct smem_buf smem_buf;
+
+typedef unsigned int SifRpcReceiveData_t;
+
+size_t SifRpcGetOtherData(void *a, pointer x, void *dest, size_t s, int z) {
+	memcpy(dest, x, s);
+	return s;
+}
+
+slib_exp_lib_list_t *slib_exp_lib_list(void) {
+	SifRpcReceiveData_t RData;
+	slib_exp_lib_t *core_exps;
+	slib_exp_lib_list_t *exp_lib_list = NULL;
+	u32 i, addr, core_end, NextMod, *exp_func;
+	void *pGetLoadcoreInternalData;
+	smod_mod_info_t *ModInfo;
+
+	/* Read the start of the global module table - this is where we will search.  */
+	if(SifRpcGetOtherData(&RData, (void*)0x800, &smem_buf, sizeof(smod_mod_info_t), 0)>=0){
+		/* The first entry points to LOADCORE's module info.  We then use the
+		   module info to determine the end of LOADCORE's .text segment (just
+		   past the export library we're trying to find.  */
+		NextMod = *smem_buf.words;
+		if(SifRpcGetOtherData(&RData, (void*)NextMod, &smem_buf, sizeof(smod_mod_info_t), 0)>=0){
+			ModInfo = &smem_buf.mod_info;
+			core_end = ModInfo->text_start+ModInfo->text_size;
+
+			/* Back up so we position ourselves infront of where the export
+			   library will be.  */
+			if(SifRpcGetOtherData(&RData, (void*)(core_end - 512), &smem_buf, 512, 0)>=0){
+				/* Search for LOADCORE's export library.  */
+				for (i = 0; i < 512; i += 4) {
+					/* SYSMEM's export library sits at 0x830, so it should appear in
+					   LOADCORE's prev pointer.  */
+					if (smem_buf.words[i / sizeof(u32)] == 0x830) {
+						if (!memcmp(smem_buf.bytes + i + 12, "loadcore", 8))
+						//if(*(unsigned int *)(smem_buf.bytes + i + 12) == 0x64616f6c) // 6c 6f 61 64 == load
+							break;
+					}
+				}
+				if (i >= 512)
+					return NULL;
+
+				/* Get to the start of the export table, and find the address of the
+				   routine that will get us the export library list info.  */
+				core_exps = (slib_exp_lib_t *)(smem_buf.bytes + i);
+				pGetLoadcoreInternalData = core_exps->exports[3];
+
+				if(SifRpcGetOtherData(&RData, pGetLoadcoreInternalData, &smem_buf, 8, 0)>=0){
+					exp_func = smem_buf.words;
+
+					/* Parse the two instructions that hold the address of the table.  */
+					if ((exp_func[0] & 0xffff0000) != 0x3c020000)	/* lui v0, XXXX */
+						return NULL;
+					if ((exp_func[1] & 0xffff0000) != 0x24420000)	/* addiu v0, v0, XXXX */
+						return NULL;
+
+					addr = ((exp_func[0] & 0xffff) << 16) | (exp_func[1] & 0xffff);
+
+					if(SifRpcGetOtherData(&RData, (void*)addr, &smem_buf, 8, 0)>=0){
+						_slib_cur_exp_lib_list.tail = (slib_exp_lib_t *)(smem_buf.words[0]);
+						_slib_cur_exp_lib_list.head = (slib_exp_lib_t *)(smem_buf.words[1]);
+						exp_lib_list = &_slib_cur_exp_lib_list;
+					}
+				}
+			}
+		}
+	}
+
+	return exp_lib_list;
+}
+
+#define EXP_LIB_MAX	SMEM_BUF_SIZE	/* We can even handle CDVDMAN's bloat!  */
+
+int slib_get_exp_lib(const char *name, slib_exp_lib_t *library)
+{
+	SifRpcReceiveData_t RData;
+	slib_exp_lib_list_t *exp_lib_list = &_slib_cur_exp_lib_list;
+	slib_exp_lib_t *exp_lib = &smem_buf.exp_lib;
+	void *cur_lib;
+	int len = strlen(name), count = 0;
+
+	if (!exp_lib_list->head && !(exp_lib_list = slib_exp_lib_list()))
+		return 0;
+
+	/* Read the tail export library to initiate the search.  */
+	cur_lib = exp_lib_list->tail;
+
+	while (cur_lib) {
+		if(SifRpcGetOtherData(&RData, cur_lib, exp_lib, EXP_LIB_MAX, 0)>=0){
+			if (!memcmp(exp_lib->name, name, len)) {
+				while (exp_lib->exports[count] != 0)
+					count++;
+
+				if (library)
+					memcpy(library, exp_lib, sizeof(slib_exp_lib_t) + count * 4);
+
+				return count;
+			}
+
+			cur_lib = exp_lib->prev;
+		}
+	}
+
+	return 0;
+}
+
+void *resolve(char *name, int export) {
+	slib_exp_lib_t *modload_lib = (void *)0x100;
+
+	memset(&_slib_cur_exp_lib_list, 0, sizeof(slib_exp_lib_list_t));
+
+	if (!slib_get_exp_lib(name, modload_lib)) {
+		return NULL;
+	}
+
+	return modload_lib->exports[export];
+}

PAYLOADS/1.00-2.13/stage1_210_212.iop.S

@@ -0,0 +1,64 @@
+# ElReino & CTurt 2020
+
+flushIcache = 0x00002f40
+flushDcache = 0x0003044
+
+#flushDcacheWrapper = 0x0057f1c
+
+iop_payload_address = 0xa00fd000
+
+.section .text
+
+.global _start
+_start:
+	move $fp, $sp # We need to reset $fp as it gets trashed by memcpy
+
+	la $v1, 0x27bdffc8 # addiu $sp, $sp, -0x38
+
+check_110:
+	#la $v0, READ_SECTORS_110
+	#lw $t0, 0($v0)
+	#beq $t0, $v1, read_iop_payload
+
+check_210:
+	la $v0, READ_SECTORS_210
+	lw $t0, 0($v0)
+	beq $t0, $v1, read_iop_payload
+
+check_212:
+	la $v0, READ_SECTORS_212
+
+read_iop_payload:
+	la $a0, (IOP_PAYLOAD_SIZE / 0x800) + 1 # count
+	la $a1, 0x700000 / 0x800 # sector
+	la $a2, iop_payload_address # destination
+	jal $v0
+	
+	#jal flushIcache
+	#jal flushDcache
+	
+	#jal ENTRY
+	la $v0, ENTRY
+	jalr $v0
+
+	la $v1, 0x27bdffc8 # addiu $sp, $sp, -0x38
+
+check_110_again:
+
+
+check_210_again:
+	la $v0, READ_SECTORS_210
+	lw $v0, 0($v0)
+	la $a0, RETURN_ADDRESS_LOCATION_210
+	la $ra, ORIGINAL_RETURN_ADDRESS_210
+	beq $v0, $v1, return
+
+check_212_again:
+	la $a0, RETURN_ADDRESS_LOCATION_212
+	la $ra, ORIGINAL_RETURN_ADDRESS_212
+
+return:
+	# Return gracefully back to original return address
+	sw $ra, 0($a0)
+	la $v0, 0
+	jr $ra

PAYLOADS/1.00-2.13/stage1_213.iop.S

@@ -0,0 +1,38 @@
+# ElReino & CTurt 2020
+
+flushIcache = 0x00002f40
+flushDcache = 0x0003044
+
+#flushDcacheWrapper = 0x0057f1c
+
+iop_payload_address = 0xa00fd000
+
+.section .text
+
+.global _start
+_start:
+	move $fp, $sp # We need to reset $fp as it gets trashed by memcpy
+
+	la $v0, READ_SECTORS_213
+
+read_iop_payload:
+	la $a0, (IOP_PAYLOAD_SIZE / 0x800) + 1 # count
+	la $a1, 0x700000 / 0x800 # sector
+	la $a2, iop_payload_address # destination
+	jal $v0
+	
+	#jal flushIcache
+	#jal flushDcache
+	
+	#jal ENTRY
+	la $v0, ENTRY
+	jalr $v0
+
+	la $a0, RETURN_ADDRESS_LOCATION_213
+	la $ra, ORIGINAL_RETURN_ADDRESS_213
+
+return:
+	# Return gracefully back to original return address
+	sw $ra, 0($a0)
+	la $v0, 0
+	jr $ra

PAYLOADS/1.00-2.13/syscalls.ee.S

@@ -0,0 +1,105 @@
+# ElReino and CTurt 2020
+
+# Since GCC does something strange, we can't write syscall thunks directly in C
+# as GCC adds move $v1, $v0 directly after jr $ra, effectively trashing $v0.
+# I don't know why this happens, but I do know enough about GCC that this
+# approach will most probably be easier. But feel free to try fixing it.
+
+.global GetThreadId
+GetThreadId:
+        la $v1, 0x2f
+        syscall 0x2f
+        jr $ra
+
+.global ChangeThreadPriority
+ChangeThreadPriority:
+        la $v1, 0x29
+        syscall 0x29
+        jr $ra
+
+.global CancelWakeupThread
+CancelWakeupThread:
+        la $v1, 0x35
+        syscall 0x35
+        jr $ra
+
+.global TerminateThread
+TerminateThread:
+        la $v1, 0x25
+        syscall 0x25
+        jr $ra
+
+.global DeleteThread
+DeleteThread:
+        la $v1, 0x21
+        syscall 0x21
+        jr $ra
+
+.global SifSetReg
+SifSetReg:
+       la $v1, 0x79
+       syscall 0x79
+       jr $ra
+
+.global SifGetReg
+SifGetReg:
+	la $v1, 0x7a
+	syscall 0x7a
+	jr $ra
+
+.global ExecPS2
+ExecPS2:
+	la $v1, 0x07
+	syscall 0x07 # BTW why do we put the number here also?
+
+# Not a syscall, but it might as well be.
+
+.global SifWriteBackDCache
+SifWriteBackDCache:
+        lui     $25, 0xffff
+        ori     $25, $25, 0xffc0
+        blez    $5, last
+        addu    $10, $4, $5
+        and     $8, $4, $25
+        addiu   $10, $10, -1
+        and     $9, $10, $25
+        subu    $10, $9, $8
+        srl     $11, $10, 0x6
+        addiu   $11, $11, 1
+        andi    $9, $11, 0x7
+        beqz    $9, eight
+        srl     $10, $11, 0x3
+loop1:
+        sync
+        cache   0x18, 0($8)
+        sync
+        addiu   $9, $9, -1
+        nop
+        bgtz    $9, loop1
+        addiu   $8, $8, 64
+eight:
+        beqz    $10, last
+loop8:
+        addiu   $10, $10, -1
+        sync
+        cache   0x18, 0($8)
+        sync
+        cache   0x18, 64($8)
+        sync
+        cache   0x18, 128($8)
+        sync
+        cache   0x18, 192($8)
+        sync
+        cache   0x18, 256($8)
+        sync
+        cache   0x18, 320($8)
+        sync
+        cache   0x18, 384($8)
+        sync
+        cache   0x18, 448($8)
+        sync
+        bgtz    $10, loop8
+        addiu   $8, $8, 512
+last:
+        jr      $31
+        nop

PAYLOADS/3.03-3.11/build.sh

@@ -0,0 +1,50 @@
+echo "Building payload"
+
+ee-gcc -Ttext=0x01FFF800 payload.c -o payload.elf -nostartfiles -nostdlib -ffreestanding -Os -Wl,-z,max-page-size=0x1 # 2048
+ee-objcopy -O binary payload.elf payload.bin -Wl,-z,max-page-size=0x1
+
+ENTRY=`ee-objdump -t payload.elf | grep " _start"`
+echo $ENTRY
+
+# Doesn't seem to work on MinGW toolchain, so set manually if you're using that:
+#ENTRY=0x`grep -o "^\S*" <<< $ENTRY`
+ENTRY=0x01fff99c
+
+echo $ENTRY
+
+echo "Building crt0 (3.03)"
+ee-gcc -Ttext=0x015FFF34 -DENTRY=$ENTRY -DGETBUFFERINTERNAL=0x262360 crt0.S -o crt0_3.03.elf -nostartfiles -nostdlib -ffreestanding -Wl,-z,max-page-size=0x1
+ee-objcopy -O binary crt0_3.03.elf crt0_3.03.bin -Wl,-z,max-page-size=0x1
+
+echo "Building crt0 (3.04M)"
+ee-gcc -Ttext=0x01800180 -DENTRY=$ENTRY -DGETBUFFERINTERNAL=0x261548 crt0.S -o crt0_3.04M.elf -nostartfiles -nostdlib -ffreestanding -Wl,-z,max-page-size=0x1
+ee-objcopy -O binary crt0_3.04M.elf crt0_3.04M.bin -Wl,-z,max-page-size=0x1
+
+echo "Building jump for 3.04J"
+ee-gcc -Ttext=0x012811E4 -DJUMP=0x01281340 jump.S -o jump.elf -nostartfiles -nostdlib -ffreestanding -Wl,-z,max-page-size=0x1
+ee-objcopy -O binary jump.elf jump.bin -Wl,-z,max-page-size=0x1
+
+echo "Building crt0 (3.04J)"
+ee-gcc -Ttext=0x01281340 -DENTRY=$ENTRY -DGETBUFFERINTERNAL=0x261560 crt0.S -o crt0_3.04J.elf -nostartfiles -nostdlib -ffreestanding -Wl,-z,max-page-size=0x1
+ee-objcopy -O binary crt0_3.04J.elf crt0_3.04J.bin -Wl,-z,max-page-size=0x1
+
+echo "Building crt0 (3.10)"
+ee-gcc -Ttext=0x01500014 -DENTRY=$ENTRY -DGETBUFFERINTERNAL=0x2986a0 crt0.S -o crt0_3.10.elf -nostartfiles -nostdlib -ffreestanding -Wl,-z,max-page-size=0x1
+ee-objcopy -O binary crt0_3.10.elf crt0_3.10.bin -Wl,-z,max-page-size=0x1
+
+echo "Building crt0 (3.11)"
+ee-gcc -Ttext=0x01500014 -DENTRY=$ENTRY -DGETBUFFERINTERNAL=0x2952f0 crt0.S -o crt0_3.11.elf -nostartfiles -nostdlib -ffreestanding -Wl,-z,max-page-size=0x1
+ee-objcopy -O binary crt0_3.11.elf crt0_3.11.bin -Wl,-z,max-page-size=0x1
+
+echo "Done."
+
+echo "For the All Slims image:"
+echo "Insert crt0_3.03.bin into VIDEO_TS.IFO at offset 0x0e8c"
+echo "Insert jump.bin into VIDEO_TS.IFO at offset 0x2724"
+echo "Insert crt0_3.04J.bin into VIDEO_TS.IFO at offset 0x2880"
+echo "Insert crt0_3.10.bin into VIDEO_TS.IFO at offset 0x2bb4"
+echo "Insert crt0_3.11.bin into VIDEO_TS.IFO at offset 0x2954"
+echo "Insert payload.bin into VIDEO_TS.IFO at offset 0x3000"
+
+echo "For 3.04M only image:"
+echo "Insert fullpayload.bin at 0x2d00, and payload.bin at 0x3000"

PAYLOADS/3.03-3.11/crt0.S

@@ -0,0 +1,41 @@
+.set noreorder # If we're writing assembly, why would we want this?
+
+.section .text.startup
+
+.equ getBufferInternal, GETBUFFERINTERNAL
+.equ payload, (0x2000000 - 0x800) # End of RAM
+
+.global _start
+_start:
+	la $a0, load
+	la $a1, 0
+	la $a2, 0
+	la $a3, 0
+
+.global ExecPS2
+ExecPS2:
+	la $v1, 7
+	syscall 7 # ExecPS2
+
+load:
+	la $a0, 0
+	la $a1, 0 # 0 = VIDEO_TS.IFO, 1 = VTS_01_0.IFO
+	la $a2, 0x3000 / 0x800 # lba offset in file
+	la $a3, payload # Destination
+	la $t0, 0x800 / 0x800 # Count
+	la $v0, getBufferInternal
+	jalr $v0
+	la $t1, 0
+
+boot:
+	la $v1, 0x64; la $a0, 0; syscall 0x64 # FlushCache data writeback
+	la $v1, 0x64; la $a0, 2; syscall 0x64 # FlushCache instruction invalidate
+
+	# Point stack to end of scratchpad RAM
+	#la $sp, 0x70004000
+	lui $sp, 0x7000
+
+	# Execute from relocated place
+	la $v0, ENTRY
+	j $v0
+	ori $sp, 0x4000

PAYLOADS/3.03-3.11/jump.S

@@ -0,0 +1,8 @@
+.set noreorder # If we're writing assembly, why would we want this?
+
+.section .text.startup
+
+.global _start
+_start:
+	j JUMP
+	nop

PAYLOADS/3.03-3.11/payload.c

@@ -0,0 +1,202 @@
+#include <stddef.h>
+
+// Pick one
+#define LOAD_FROM_VTS_02_0_IFO
+//#define LOAD_FROM_SECTOR_RELATIVE_TO_VIDEO_TS_IFO (151 - 138 - 7)
+
+#define min(a, b) (((a) < (b)) ? (a) : (b))
+
+void (*pointToIFO)(unsigned int index, unsigned int lba, unsigned int offset);
+void (*getDiscData)(unsigned int s, void *d);
+
+int (*getBufferInternal)(void *filename, int type, int currentSector, void *dest, unsigned int sectorsRemaining, int curReadPos);
+
+int (*SifIopReset)(char *, int);
+int (*SifIopSync)(void);
+void (*SifInitRpc)(int);
+void (*SifExitRpc)(void);
+
+#define ELF_PT_LOAD 1
+
+typedef unsigned char u8;
+typedef unsigned short u16;
+typedef unsigned int u32;
+
+typedef struct {
+	u8 ident[16];
+	u16 type;
+	u16 machine;
+	u32 version;
+	u32 entry;
+	u32 phoff;
+	u32 shoff;
+	u32 flags;
+	u16 ehsize;
+	u16 phentsize;
+	u16 phnum;
+	u16 shentsize;
+	u16 shnum;
+	u16 shstrndx;
+} elf_header_t;
+
+typedef struct {
+	u32 type;
+	u32 offset;
+	void *vaddr;
+	u32 paddr;
+	u32 filesz;
+	u32 memsz;
+	u32 flags;
+	u32 align;
+} elf_pheader_t;
+
+__attribute__((noreturn)) void ExecPS2(void *entry, void *gp, int argc, char **argv) {
+	asm volatile("la $v1, 7; syscall 7");
+	//__builtin_unreachable();
+}
+
+static void *memcpy_(void *dest, void *src, size_t n) { 
+   int i;
+   for(i = 0; i < n; i++) ((unsigned char *)dest)[i] = ((unsigned char *)src)[i];
+   return dest;
+}
+
+// Todo: maybe cache last sector to save 1 or 2 reads
+static void *memset(void *dest, int c, size_t n) {
+	int i;
+	for(i = 0; i < n; i++) ((unsigned char *)dest)[i] = c;
+	return dest;
+}
+
+static void readData(void *dest, unsigned int offset, size_t n) {
+	unsigned char buffer[0x800];
+
+	unsigned int copied = 0;
+	#define remaining (n - copied)
+
+	if(offset % 0x800) {
+		getBufferInternal("", 1, offset / 0x800, buffer, 1, 0);
+		memcpy_(dest, buffer + offset % 0x800, min(0x800 - (offset % 0x800), n));
+		copied += min(0x800 - (offset % 0x800), n);
+	}
+
+	if(remaining >= 0x800) {
+		getBufferInternal("", 1, (offset + copied) / 0x800, dest + copied, remaining / 0x800, 0);
+		copied += (remaining / 0x800) * 0x800;
+	}
+	
+	if(remaining > 0) {
+		getBufferInternal("", 1, (offset + copied) / 0x800, buffer, 1, 0);
+		memcpy_(dest + copied, buffer, remaining);
+	}
+}
+
+__attribute__((noreturn)) void _start(void) {
+	int i;
+
+	// Identify version based on jump target location
+	if((*(void **)0x928D24) == (void *)0x15ea540) {
+		// 3.03
+		pointToIFO = (void *)0x2432c8;
+		getDiscData = (void *)0x243438;
+
+		getBufferInternal = (void *)0x262360;
+
+		SifIopReset = (void *)0x291fb8;
+		SifIopSync = (void *)0x292138;
+		SifInitRpc = (void *)0x2082a0;
+		SifExitRpc = (void *)0x208440;
+	}
+	else if((*(void **)0x6D9C3C) == (void *)0x126b7e0) {
+		// 3.04J
+		pointToIFO = (void *)0x23dfe0;
+		getDiscData = (void *)0x23e150;
+
+		getBufferInternal = (void *)0x261560;
+
+		SifIopReset = (void *)0x84fe0;
+		SifIopSync = (void *)0x85110;
+		SifInitRpc = (void *)0x84180;
+		SifExitRpc = (void *)0x84310;
+	}
+	else if((*(void **)0x95CF40) == (void *)0x1800180) {
+		// 3.04M
+		pointToIFO = (void *)0x23dfc8;
+		getDiscData = (void *)0x23e138;
+
+		getBufferInternal = (void *)0x261548;
+
+		SifIopReset = (void *)0x291358;
+		SifIopSync = (void *)0x2914d8;
+		SifInitRpc = (void *)0x208260;
+		SifExitRpc = (void *)0x208400;
+	}
+	else if((*(void **)0x5f1f38) == (void *)0x1500014) {
+		// 3.10
+		pointToIFO = (void *)0x25c880;
+		getDiscData = (void *)0x25c9f0;
+		
+		getBufferInternal = (void *)0x002986a0;
+
+		SifIopReset = (void *)0x84fe0;
+		SifIopSync = (void *)0x85110;
+		SifInitRpc = (void *)0x84180;
+		SifExitRpc = (void *)0x84310;
+	}
+	else if((*(void **)0x3EA438) == (void *)0x1500014) {
+		// 3.11
+		pointToIFO = (void *)0x258a28;
+		getDiscData = (void *) 0x258b98;
+
+		getBufferInternal = (void *)0x2952f0;
+
+		SifIopReset = (void *)0x20e7d8;
+		SifIopSync = (void *)0x20e958;
+		SifInitRpc = (void *)0x208d80;
+		SifExitRpc = (void *)0x208f20;
+	}
+
+	#ifdef LOAD_FROM_VTS_02_0_IFO
+		// point to VTS_02_0.IFO
+		pointToIFO(2, 0, 0);
+		
+		// Force a read from VTS_02_0.IFO
+		char head[64];
+		getDiscData(64, &head);
+
+		#define RELATIVE_SECTOR 0
+	#else
+		#define RELATIVE_SECTOR LOAD_FROM_SECTOR_RELATIVE_TO_VIDEO_TS_IFO
+	#endif
+
+	// Based on https://github.com/AKuHAK/uLaunchELF/blob/master/loader/loader.c
+	elf_header_t eh;
+	readData(&eh, RELATIVE_SECTOR * 0x800, sizeof(elf_header_t));
+
+	elf_pheader_t eph[eh.phnum];
+	readData(&eph, RELATIVE_SECTOR * 0x800 + eh.phoff, sizeof(elf_pheader_t) * eh.phnum);
+	
+	for (i = 0; i < eh.phnum; i++) {
+		if (eph[i].type != ELF_PT_LOAD)
+			continue;
+
+		readData(eph[i].vaddr, RELATIVE_SECTOR * 0x800 + eph[i].offset, eph[i].filesz);
+		if(eph[i].memsz > eph[i].filesz) memset(eph[i].vaddr + eph[i].filesz, 0, eph[i].memsz - eph[i].filesz);
+	}
+
+	asm volatile("la $v1, 0x64; la $a0, 0; syscall 0x64"); // FlushCache data writeback
+	asm volatile("la $v1, 0x64; la $a0, 2; syscall 0x64"); // FlushCache instruction invalidate
+
+	//while(!SifIopReset("", 0));
+	//while(!SifIopSync());
+
+	//while(!SifIopReset("rom0:UDNL rom0:EELOADCNF", 0));
+	SifIopReset("rom0:UDNL rom0:EELOADCNF", 0);
+	while(!SifIopSync());
+
+	SifInitRpc(0);
+	SifExitRpc();
+
+	char *argv[] = { "cdrom0:\\VIDEO_TS\\VTS_02_0.IFO" };
+	ExecPS2((void *)eh.entry, 0, 1, &argv);
+}

README.md

@@ -0,0 +1,154 @@
+# FreeDVDBoot
+PlayStation 2 DVD Player Exploit. This allows you to burn your own PlayStation 2 homebrew discs and play them on an unmodified console as seen in the [demo video](https://www.youtube.com/watch?v=ez0y-hz3VuM). With uLaunchELF as the initial program, users can include multiple homebrew programs on the same disc.
+
+For technical details please refer to my [blog post](https://cturt.github.io/freedvdboot.html).
+
+Read from [here](#easy-setup-for-all-ps2-slim-consoles--bravia-tv) if you have a Slim PS2.
+
+Read from [here](#phat-consoles) if you have a Phat PS2.
+
+## Easy setup for all PS2 Slim consoles / Bravia TV
+All you need is:
+
+- A compatible console (all PS2 Slim / Sony Bravia TV units are supported),
+- A DVD (not a CD), preferably a DVD-R as other types such as DVD+RW put more strain on the PS2 laser,
+- A computer with a built-in disc burner / external USB disc burner,
+
+### Step 1: Download the ISO
+Download [`PREBUILT ISOs/All PS2 Slims - English language.iso`](https://git.lainlounge.xyz/hax/FreeDVDBoot/raw/master/PREBUILT%20ISOs/All%20PS2%20Slims%20-%20English%20language.iso)
+
+### Step 2: Burn the ISO
+Please check following to ensure a good burn which the PS2 will be able to read:
+
+- Clean off any dust from the disc,
+- Select lowest burning speed option,
+- Select finalise disc option,
+
+### Step 3: Set console language to English
+Your console must be set to **English language** for the exploit to work (other languages cause memory contents to change).
+
+To do this, boot without a disc inserted, press **Circle** to enter **System Configuration** and set your system language to **English**.
+
+### Step 4: Boot!
+Insert the disc into your console, and wait. It should boot into **uLaunchELF** within a few seconds.
+
+From **uLaunchELF**, you have the ability to run any homebrew you want over USB **mass** storage! Many people choose to run **FreeMCBoot** or **Fortuna** installer, as they find booting from a memory card more convenient.
+
+If you want to add additional homebrew to your DVD / replace uLaunchELF, please read from [Custom disc setup](#custom-disc-setup).
+
+## Troubleshooting - please read if the above didn't work
+| Problem                                                                            | Solution                                                                                                                                                                                                                                                                                         |
+|------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| Disc doesn't spin on slim console                                                  | Press the lid down hard to ensure the sensors detect that the lid is closed. If still not working try placing some weight such as a book on the top of the console.                                                                                                                              |
+| PS2 detects the disc as "PlayStation 2 disc" instead of "DVD Video" in the browser | Your PS2 has a modchip which is incorrectly preventing the DVD player from launching. You do not need this exploit for a console with a modchip, but if you really want to try it some modchips offer the ability to temporarily disable themselves (by holding start when booting for example). |
+| PS2 displays "unable to read disc"                                                 | Please try playing a real DVD movie disc to verify that your console's DVD laser works; doing this can also recalibrate the laser which might solve the issue, as [commented here](https://github.com/CTurt/FreeDVDBoot/issues/27). Also try the following PS2 setting `Version -> Console -> Diagnosis -> On` which can assist with laser problems.                                                                                                               |
+| PS2 freezes at black/red/green screen                                              | If your PS2 DVD laser is really worn out, or you are using something difficult to read like a dusty DVD+RW burned on high speed, it might take some time before uLaunchELF actually starts. Please try waiting 3 minutes or so, per [this comment](https://github.com/CTurt/FreeDVDBoot/issues/3#issuecomment-651337741)                                            |
+
+Other suggestions that worked for others:
+
+- Try unplugging your controller, and plugging it back in. Apparently [that solved the issue for this user](https://github.com/CTurt/FreeDVDBoot/issues/103).
+
+- Try removing all memory cards. Apparently [that solved the issue for this user](https://github.com/CTurt/FreeDVDBoot/issues/3#issuecomment-651970564).
+
+- Try burning with different software. Apparently [for this user](https://github.com/CTurt/FreeDVDBoot/issues/108) and [this user](https://github.com/CTurt/FreeDVDBoot/issues/124#issuecomment-661231776) ImgBurn didn't work, but CDBurnerXP with 1x speed, compatibility settings, and finalize option worked.
+
+- Check that your console's language is set to English.
+
+- Check the GitHub repo to see if the image has been updated recently. Download the new one if it has.
+
+**Please, only open a GitHub issue if you have read and tried all of the above. If you do open an issue, please confirm that you tried a real DVD movie and it worked on your system so that we know it's not just a laser failure; also include your DVD player version, the name of the ISO you tried, the type of DVD, and what happens when you launch the disc.**
+
+## Phat consoles
+Phat consoles have many different firmware version revisions, which makes them harder to add support for. It also means you will need to identify your firmware version, and burn the matching ISO file.
+
+It's still early in terms of support for different versions, check back here later. Hopefully over time other developers from the scene will also contribute support for additional DVD Player versions. The new exploit for 2.10 should be possible to port to all firmwares between 1.00 - 2.13 (Sony actually patched this one in 2.14 lol).
+
+### Step 1: Identify your DVD Player Version
+Boot your PlayStation 2 without any disc inserted, and press Triangle to identify which DVD Player version your console has.
+
+**Currently only support:**
+
+- 2.10 (certain models only? Working: SCPH-30001 R (ROMGEN 0160AC20010427), SCPH-30000 (ROMGEN 0160JC20010427), SCPH-30004 R (ROMGEN 0160EC20011004), Not working: SCPH-39004 - todo),
+
+- 2.12 (regions U, J, and G, if any other regions exist for 2.12 let me know),
+
+- 3.04 (tested only region M in emulator so far, but guess most other regions EUMACDG, except for J will work - with English language set in settings),
+
+### Step 2: Download the ISO
+Download the ISO that corresponds to your firmware version.
+
+**Please don't bother trying on a non-supported firmware/language configuration, it won't work...**
+
+For example, if your DVD Player version is 2.10J, you would want to download `PREBUILT ISOs/2.10.iso`.
+
+### Step 3, 4, 5 - Burn the ISO, set console language to English, and boot!
+These steps are the same as described for slim above.
+
+## Custom disc setup - Slim
+If you intend to make your own image containing additional homebrew / modified initial loader, please read on.
+
+### Step 1: Copy your homebrew
+Once you've identified your console's DVD Player version, copy all of the homebrew you would like to include on the disc into that directory in the `Filesystems` (EG: `Filesystems/All PS2 slims (3.10 + 3.11) - English language/` is the one that supports all slim consoles).
+
+### Step 2: Make an image
+Once you've placed all the homebrew files you'd like into the directory, generate a UDF (ISO9960/UDF hybrid also works) image of the directory (so `VIDEO_TS` is in the root).
+
+On Windows, you can use a GUI like ImgBurn to make an disc image. It will give a warning that `VIDEO_TS.BUP` is missing, but just click continue anyway (PS2 doesn't require this file).
+
+On Linux the easiest way is probably to use `genisoimage` as it comes pre-installed on many Linux distributions like Ubuntu. Run the following on terminal (where `exploit.iso` is the output and `Filesystem/All PS2 slims (3.10 + 3.11) - English language` is the directory containing `VIDEO_TS` and any homebrew):
+
+    genisoimage -udf -o exploit.iso "Filesystems/All PS2 slims (3.10 + 3.11) - English language"
+
+### Step 3: Test and burn
+I would recommend you test in PCSX2 first, but since [PCSX2 doesn't support loading the DVD Player](https://github.com/PCSX2/pcsx2/issues/1981), you have to decrypt and repack it yourself, which is beyond the scope of this README. With that said, if you aren't touching anything in `VIDEO_TS`, there shouldn't really be any reason for the exploit to fail.
+
+## Custom disc setup - Phat
+Instructions for building the phat exploit coming soon.
+
+## Replacing the initial program - Slim
+I've included uLaunchELF recompiled with [DVD support](https://github.com/ps2dev/ps2sdk/pull/130) as the default initial program. It presents a menu which allows you to select any of the homebrew programs you chose to include on the disc (and also allows booting from USB).
+
+Alternatively, if you would rather just boot into a single homebrew application, the initial program the exploit attempts to boot is located at `VIDEO_TS/VTS_02_0.IFO`, replace it with your desired `ELF` file, with the below caveat that compatibility might be lower than if you booted a program through uLaunchELF:
+
+For the initial release, I didn't bother to reimplement a couple of functions used by the loader, so it requires that the ELF you load doesn't overwrite those functions I use (those are around `0x84000 - 0x85fff` and `0x250000 - 0x29ffff`). I will probably remove this limitation in the future, but all ELFs I could find were fine with this limitation.
+
+You can run `readelf -l` to verify your executable satisfies this requirement. For example, this Tetris homebrew just uses `0x00100000 - 0x0017a940`:
+
+	$ readelf -l VTS_02_0.IFO
+
+	Elf file type is EXEC (Executable file)
+	Entry point 0x104490
+	There is 1 program header, starting at offset 52
+
+	Program Headers:
+	  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
+	  LOAD           0x001000 0x00100000 0x00100000 0x72ef4 0x7a940 RWE 0x1000
+
+	 Section to Segment mapping:
+	  Segment Sections...
+	   00     .text .ctors .dtors .rodata .data .jcr .sdata .sbss .bss
+
+## Replacing the initial program - Phat
+The ELF is read from `0x5bb000` in the ISO file, copy to that location with a hex editor to replace it.
+
+## Loading backups
+It's possible to patch backup images of commercial games to make them bootable using this exploit. I didn't want to maintain this tool, so it's not included in this repository, but can be found by searching for something like FreeDVDBoot ESR auto patcher.
+
+## DEVELOPMENT: Replacing the loader payload - Slim
+The default payload will boot `VIDEO_TS/VTS_02_0.IFO` as an ELF file, but tweaks might be desired to improve compatibility, or maybe changing the behaviour to boot `BOOT.ELF` instead for instance.
+
+If you wish to update the loader payload, run `build.sh` inside `PAYLOAD` directory, and copy the output `.bin` files into `VIDEO_TS/VIDEO_TS.IFO` at the offsets displayed by the output of the command.
+
+## DEVELOPMENT: Replacing the loader payload - Phat
+Run the following to build a new `dvd.iso`:
+
+`make -f hardware.mk`
+
+If you want to test on PCSX2 using KrHacken's repacked DVD players, it loads `udfio` at a different base address, use the repacked Makefile to build an image for testing on the emulator:
+
+`make -f emulator.mk`
+
+`clean` before switching between these different Makefiles, or use `-B` flag.
+
+## PORTING:
+Please read my technical writeup, to understand how the exploit works. I've also provided some [notes about porting](https://cturt.github.io/FreeDVDBoot/portingnotes.html) in the [`gh-pages`](https://github.com/CTurt/FreeDVDBoot/tree/gh-pages) branch.

index.html

@@ -1,12 +0,0 @@
-<html>
-<body>
-<ul>
-<li>
-	<a href="https://cturt.github.io/freedvdboot.html">Technical writeup for initial exploit of firmware 3.10</a>
-</li>
-<li>
-	<a href="portingnotes.html">Notes on reverse engineering and exploiting different DVD player firmwares</a>
-</li>
-</ul>
-</body>
-</html>

portingnotes.html

@@ -1,521 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<style>
-table {
-  font-family: arial, sans-serif;
-  border-collapse: collapse;
-  width: 100%;
-}
-
-td, th {
-  border: 1px solid #dddddd;
-  text-align: left;
-  padding: 8px;
-}
-
-tr:nth-child(even) {
-  background-color: #dddddd;
-}
-</style>
-</head>
-<body>
-
-<h1>3.03 - 3.11</h1>
-<p>
-	These firmware versions all have the same getDiscData 0xffff * 3 * 8 buffer overflow of immediately controllable contents.
-</p>
-
-<table>
-  <tr>
-    <th></th>
-    <th>3.03</th>
-    <th>3.04J</th>
-    <th>3.04M</th>
-    <th>3.10</th>
-    <th>3.11</th>
-  </tr>
-  <tr>
-  	<th style="text-align: center" colspan="6">Symbols</th>
-  </tr>
-  <tr>
-    <th>getDiscData</th>
-    <td>0x243438</td>
-    <td>0x23e150</td>
-    <td>0x23e138</td>
-    <td>0x25c9f0</td>
-    <td>0x258b98</td>
-  </tr>
-  <tr>
-    <th>getDiscByte</th>
-    <td>0x243368</td>
-    <td>0x23e080</td>
-    <td>0x23e068</td>
-    <td>0x25c920</td>
-    <td>0x258ac8</td>
-  </tr>
-  <tr>
-    <th>currentDiscBytePointer</th>
-    <td>0x15f42a4</td>
-    <td>0x1273ae4</td>
-    <td>0x16ceee4</td>
-    <td>0x1411fe4</td>
-    <td>0x143b3e4</td>
-  </tr>
-  <tr>
-    <th>endDiscBytePointer</th>
-    <td>0x15f42a8</td>
-    <td>0x1273ae8</td>
-    <td>0x16ceee8</td>
-    <td>0x1411fe8</td>
-    <td>0x143b3e8</td>
-  </tr>
-  <tr>
-    <th>0xff * 3 * 8 overflow</th>
-    <td>0x241d0c</td>
-    <td>0x23cb1c</td>
-    <td>0x23cb04</td>
-    <td>0x25b3bc</td>
-    <td>0x257564</td>
-  </tr>
-  <tr>
-    <th>fpIndex</th>
-    <td>0x15f4b0a</td>
-    <td>0x127434a</td>
-    <td>0x16cf74a</td>
-    <td>0x141284a</td>
-    <td>0x143bc4a</td>
-  </tr>
-  <tr>
-    <th>fpArray</th>
-    <td>0x923d88</td>
-    <td>0x6d4e68</td>
-    <td>0x95ace8</td>
-    <td>0x5b9d40</td>
-    <td>0x3b3050</td>
-  </tr>
-  <tr>
-    <th>OOB call</th>
-    <td>0x0244E1C</td>
-    <td>0x23fad4</td>
-    <td>0x23faac</td>
-    <td>0x25e388</td>
-    <td>0x25ab44</td>
-  </tr>
-  <tr>
-    <th>getBufferInternal</th>
-    <td>0x262360</td>
-    <td>0x261560</td>
-    <td>0x261548</td>
-    <td>0x2986a0</td>
-    <td>0x2952f0</td>
-  </tr>
-  <tr>
-    <th>pointToIFO</th>
-    <td>0x2432c8</td>
-    <td>0x23dfe0</td>
-    <td>0x23dfc8</td>
-    <td>0x25c880</td>
-    <td>0x258a28</td>
-  </tr>
-  <tr>
-    <th>SifIopReboot</th>
-    <td></td>
-    <td></td>
-    <td>0x291528</td>
-    <td></td>
-    <td></td>
-  </tr>
-  <tr>
-    <th>SifInitRpc</th>
-    <td>0x2082a0</td>
-    <td></td>
-    <td>0x208260</td>
-    <td>0x84180</td>
-    <td>0x208d80</td>
-  </tr>
-  <tr>
-    <th>SifExitRpc</th>
-    <td>0x208440</td>
-    <td></td>
-    <td>0x208400</td>
-    <td>0x84310</td>
-    <td>0x208f20</td>
-  </tr>
-  <tr>
-    <th>SifIopReset</th>
-    <td>0x291fb8</td>
-    <td></td>
-    <td>0x291358</td>
-    <td>0x84fe0</td>
-    <td>0x20e7d8</td>
-  </tr>
-  <tr>
-    <th>SifIopSync</th>
-    <td>0x292138</td>
-    <td></td>
-    <td>0x2914d8</td>
-    <td>0x85110</td>
-    <td>0x20e958</td>
-  </tr>
-  <tr>
-  	<th style="text-align: center" colspan="6">Controlled memory ranges</th>
-  </tr>
-  <tr>
-    <th>Destination of large copy</th>
-    <td>0x15ec890</td>
-    <td>0x126d8d4</td>
-    <td>0x16c8cd4</td>
-    <td>0x140bdd4</td>
-    <td>0x14351cc</td>
-  </tr>
-  <tr>
-    <th>Destination + max size</th>
-    <td>0x176C878</td>
-    <td>0x12AD8D0</td>
-    <td>0x1848CBC</td>
-    <td>0x158BDBC</td>
-    <td>0x15B51B4</td>
-  </tr>
-  <tr>
-  	<th style="text-align: center" colspan="6">Exploit values</th>
-  </tr>
-  <tr>
-    <th>currentDiscBytePointer value at overwrite</th>
-    <td>0x015f1008</td>
-    <td>0x01273044</td>
-    <td>0x016ce444</td>
-    <td>0x01411544</td>
-    <td>0x0143a94c</td>
-  </tr>
-  <tr>
-    <th>Jump target</th>
-    <td>0x15ea540</td>
-    <td>0x0126b7e0</td>
-    <td>0x01800180</td>
-    <td>0x01500014</td>
-    <td>0x01500014</td>
-  </tr>
-  <tr>
-    <th>Address of jump target</th>
-    <td>0x928D24</td>
-    <td>0x6D9C3C</td>
-    <td>0x95CF40</td>
-    <td>0x5f1f38</td>
-    <td>0x3EA438</td>
-  </tr>
-  <tr>
-    <th>Intermediate jump location</th>
-    <td></td>
-    <td>0x012811E4</td>
-    <td>Not required</td>
-    <td>Not required</td>
-    <td>Not required</td>
-  </tr>
-  <tr>
-    <th>Intermediate jump target</th>
-    <td></td>
-    <td>0x01281340</td>
-    <td>Not required</td>
-    <td>Not required</td>
-    <td>Not required</td>
-  </tr>
-  <tr>
-  	<th style="text-align: center" colspan="6">IFO offsets</th>
-  </tr>
-  <tr>
-  	<th>currentDiscBytePointer</th>
-    <td>0x1c6c (4 bytes)</td>
-    <td>0x2744 (2 bytes), 0x2c26 (2 bytes)</td>
-    <td>0x2744 ()</td>
-    <td>0x2744 (4 bytes)</td>
-    <td>0x277c (4 bytes)</td>
-  </tr>
-  <tr>
-  	<th>fpIndex</th>
-    <td>0x24D2</td>
-    <td>0x29ea</td>
-    <td>0x2faa</td>
-    <td>0x2faa</td>
-    <td>0x2fe2</td>
-  </tr>
-  <tr>
-  	<th>Payload</th>
-    <td>0x0e8c</td>
-    <td>0x2880</td>
-    <td>0x2d00</td>
-    <td>0x2bb4</td>
-    <td>0x2954</td>
-  </tr>
-</table>
-
-<br>
-
-<h2>3.03</h2>
-<p>
-  3.03 has a couple of additional tricks going on. There are no jump targets which lie within our controlled range from any buffer overflows, however the jump target 0x15ea540 is very close to the beginning of our IFO file contents (0x15ea620).
-</p>
-
-<p>
-  The memory between the jump target and the start of the IFO (0x15ea540 - 0x15ea620) is all zeroes, so that's just a NOP-sled. Then the IFO header "DVDVIDEO-VMG" turns out to decode to a conditional relative branch which not only happens to be taken, but also jumps to fully controlled contents later in the IFO:
-</p>
-
-<pre><code>bnel    s2,a0,pos_015FFF34</code></pre>
-
-<br>
-
-<p>
-  In addition, that jump target does not fall within language data, so the 3.03 exploit supports all languages, not just English!
-</p>
-
-<br>
-
-<h2>Testing</h2>
-<ul>
-  <li>3.03 has only been tested in region E - other regions need dumping and testing,</li>
-  <li>3.04 only region M and J are repacked - they are both different, other regions need dumping and testing,</li>
-  <li>3.10 and 3.11 have both been tested on all regions and work the same,</li>
-</ul>
-
-<br>
-
-<h2>Conflicts</h2>
-<p>
-	In order to merge 2 exploits into a single ISO there must be either:
-</p>
-
-<ul>
-<li>No conflict between offset of currentDiscBytePointer corruption value in IFO file so that the two versions can specify different addresses (3.10 and 3.11),</li>
-<li>Controlled memory at a common address between the two versions so that currentDiscBytePointer can be written to controlled memory region for both (3.04J and 3.10),</li>
-</ul>
-
-<p>
-	It's more complicated than that, because the currentDiscBytePointer is overwritten byte-by-byte.
-</p>
-
-<br>
-
-<h1>&lt; 3.03</h1>
-<p>
-	These firmwares don't use the same getDiscData stream reader API, instead they manually call getBuffer and then memcpy from that sectorBuffer somewhere else. They still contain the vulnerability, but as it occurs from memcpy of OOB memory into other OOB memory, it is not just immediately possible for the full memory range overflowed with to contain fully controlled contents.
-</p>
-
-<p>
-	Let's look at 3.02 specifically.
-</p>
-
-<pre><code>0x256668 - getBufferInternal
-0x256888 - getBuffer</pre></code>
-
-<br>
-
-<p>
-	Searching calls to getBuffer, it's always a fixed number of sectors, 1 to 4, so as previously stated we can't just overflow straight into fpIndex with controlled contents as in &gt; 3.02.
-</p>
-
-<p>
-	But, <b>the buffer overflows definitely do still exist</b>. The function at 0x23e560 is a nice self contained one:
-</p>
-
-<pre><code>long bufferOverflow(void) {
-  long lVar1;
-  
-  lVar1 = getBuffer(s_VIDEO_TS.IFO_0090c210,(long)(int)DAT_013c7840,sectorBuffer,1,0);
-  if (lVar1 == 0) {
-    someLengthFromIFO = (ushort)sectorBuffer[0] * 0x100 + (ushort)sectorBuffer[1];
-    DAT_013c7890 = ((long)(int)((uint)sectorBuffer[4] << 0x18) | (ulong)sectorBuffer[5] << 0x10) +
-                   (ulong)sectorBuffer[6] * 0x100 + (ulong)sectorBuffer[7];
-    memcpy(&PTR_DAT_013c7898,sectorBuffer + 8,(uint)someLengthFromIFO * 0xc);
-    lVar1 = 0;
-  }
-  return lVar1;
-}</code></pre>
-
-<br>
-
-<p>
-	The memcpy call can overwrite memory from 0x013c7898 to 0x148788C (0x013c7898 + 0xffff * 0xc). The buffer overflow we are triggering in all other exploits because it gives biggest size is at 0x240284:
-</p>
-
-<pre><code>
-      length2 = (ushort)sectorBuffer[uVar33 + 2] * 0x100 + (ushort)sectorBuffer[uVar33 + 3];
-      length1 = (ushort)sectorBuffer[uVar33] * 0x100 + (ushort)sectorBuffer[uVar33 + 1];
-      length3 = (ushort)sectorBuffer[uVar33 + 4] * 0x100 + (ushort)sectorBuffer[uVar33 + 5];
-      DAT_013c9a2e = (ushort)sectorBuffer[uVar33 + 6] * 0x100 + (ushort)sectorBuffer[uVar33 + 7];
-      memcpy(&DAT_013c9a30,sectorBuffer + uVar33 + 8,
-             ((uint)length1 + (uint)length2 + (uint)length3) * 8);</code></pre>
-
-<br>
-
-<p>
-	fpIndex is at 0x13cfaca (leading to OOB call at 0x242f6c), and if we can set that to a controlled value we potentially have an exploit (if there's a good jump target).
-</p>
-
-<p>
-	fpIndex can be overwritten by either of the memcpy buffer overflows shown with a large enough size, but we're not corrupting it with data coming straight from disc; we only read at most 4 sectors (0x800 * 4) = 0x2000 into sectorBuffer, however we need to memcpy 0x609A bytes from sectorBuffer into 0x13c9a30 to overwrite fpIndex (0x13cfaca-0x13c9a30), so we'll be copying from uncontrolled OOB memory into fpIndex.
-</p>
-
-<p>
-    So, can we make that OOB memory contain controlled contents? Well, by making use of that buffer overflow, we can shift the question from "can we control fpIndex (0x13cfaca)", to "can we control sectorBuffer + 0x609A = 0x13D331A", since if we control that the memcpy will then copy into fpIndex from an address we can control the contents of.
-</p>
-
-<p>
-  Looking at all of the copies - maybe you will be lucky and find that it happens to line up that after a series of copies - some value you control ends up in fpIndex. Will need more time on it.
-</p>
-
-<br>
-
-<h2>UDF vulnerabilities</h2>
-<p>
-  The IFO buffer overflows are really easy to find as the IFO parsing is the first thing the DVD player does on EE side. We'll probably want to reverse engineer deeper into things like the actual video decoding, etc, in order to see if more easily exploitable bugs are available; for that, I hope others will help collaborate and share notes.
-</p>
-
-<br>
-
-<h2 id="readPartitionTables">readPartitionTables stack buffer overflow - Found by ElReino</h2>
-<p>
-  This is a stack buffer overflow occuring in UDFIO IOP processor module. From 2.10E, at 0xb37e4:
-</p>
-
-<pre><code>    memcpy(&lengthOfExtendedAttributes,DescriptorBuf + 0xa8,4);
-    memcpy(&lengthOfAllocationDescriptors,DescriptorBuf + 0xac,4);
-    memset(&AllocationDescriptors,0,8);
-    memcpy(&AllocationDescriptors,DescriptorBuf + lengthOfExtendedAttributes + 0xb0,
-           lengthOfAllocationDescriptors);</code></pre>
-
-<br>
-
-<p>
-  Interestingly, this was actually patched by Sony in firmware 2.14! We see it just uses fixed size of 8 bytes:
-</p>
-
-<pre><code>  memcpy(local_20,0x5ab8,4);
-  memcpy(auStack36,0x5abc,4);
-  memset(&local_18,0,8);
-  memcpy(&local_18,(int)&PTR_DAT_00005ac0 + local_20[0],8);
-</code></pre>
-
-<br>
-
-<p>
-  To find the vulnerability in an IOP memory dump, search for this instruction sequence:
-</p>
-
-<pre><code>08 00 06 24       _li        param_3,0x8</code></pre>
-
-<br>
-
-<p>
-  Until you get one that matches the memcpy/memset pattern shown above in the decompiler view.
-</p>
-
-<p>
-  If you are paranoid about cache, there's a really nice ROP gadget in the sound module. To find where the FlushDCache function is in your BIOS, run an IOP RAM dump through <a href="https://gist.github.com/CTurt/6eecc155e2b545a58bad9a65e866b4ab">this code</a>. Then look for calls to that function to find a nice ROP gadget, for 2.10 it's at 0x57f1c:
-</p>
-
-
-<pre><code>        00057f1c 3e 67 01 0c       jal        FlushDCacheWrapper
-        00057f20 00 00 00 00       _nop
-        00057f24 18 00 bf 8f       lw         ra,local_8(sp)
-        00057f28 14 00 b1 8f       lw         s1,local_c(sp)
-        00057f2c 10 00 b0 8f       lw         s0,local_10(sp)
-        00057f30 01 00 02 24       li         v0,0x1
-        00057f34 08 00 e0 03       jr         ra
-        00057f38 20 00 bd 27       _addiu     sp,sp,0x20</code></pre>
-
-<br>
-
-<p>
-  This will be our initial corrupted return address, then we'll jump to the uncached virtual address of the actual IOP payload entry-point, and first thing will be undoing the corruption from this ROP gadget (sub 0x20 from sp and restore s0/s1). The IOP payload loads a second IOP payload, which loads an ELF into EE RAM, then redirects return address on EE stack and IOP returns gracefully (which resumes EE and triggers EE payload).
-</p>
-
-<p>
-  Table of addresses for completed ports below. It should be possible to port to all versions from 1.00 - 2.13:
-<p>
-
-<table>
-  <tr>
-    <th>Symbol</th>
-    <th>2.10</th>
-    <th>2.12</th>
-  </tr>
-  <tr>
-    <th>memcpy overflow</th>
-    <td>0xb37e4</td>
-    <td>0xb37e8</td>
-  </tr>
-  <tr>
-    <th>copy destination</th>
-    <td>0x01F6268</td>
-    <td></td>
-  </tr>
-  <tr>
-    <th>return address location</th>
-    <td>0x1f62ac</td>
-    <td></td>
-  </tr>
-  <tr>
-    <th>jump to return address</th>
-    <td>0xB3BF0</td>
-    <td></td>
-  </tr>
-  <tr>
-    <th>stage 1 address</th>
-    <td>0x1f62b0</td>
-    <td></td>
-  </tr>
-  <tr>
-    <th>Flush D Cache IOP</th>
-    <td>0x0003044</td>
-    <td></td>
-  </tr>
-  <tr>
-    <th>Flush I Cache IOP</th>
-    <td>0x00002f40</td>
-    <td></td>
-  </tr>
-  <tr>
-    <th>Flush D Cache IOP caller (initial jump address)</th>
-    <td>0x57f1c</td>
-    <td></td>
-  </tr>
-  <tr>
-    <th>Return address in ISO</th>
-    <td>0x00818f4</td>
-    <td></td>
-  </tr>
-  <tr>
-    <th>Second return address in ISO</th>
-    <td>0x0081910</td>
-    <td></td>
-  </tr>
-</table>
-
-<br>
-
-<h2 id="readSectorsOverflow">readSectors buffer overflow</h2>
-<p>
-  In 2.14, Sony removed the bounds check on sizes passed to readSectors, so we can reach the following with controlled sectorCount:
-</p>
-
-<pre><code>0xb31bc:
-
-iVar1 = readSectors(sectorCount,sectorNumber,0xb6c40);</code></pre>
-
-<br>
-
-<p>
-  In PCSX2 emulator, we can exploit this bug by overflowing into the stack (you can just spam payload addresses like 0xa00c0000 to that massive range of controlled memory and it will jump to it).
-</p>
-
-<p>
-  I was super excited by this, and started writing a nice exploit for 2.14+, but then krHacken burned the disc and found out that it isn't accepted by mechacon as a valid DVD Video, so we can't trigger this bug on the hardware. This makes sense; the change was too random to have been a security regression, especially as 2.14 was a release that fixed the readPartitionTables bug, otherwise it would have seemed too much like a backdoor lol
-</p>
-
-</body>
-</html>
-
-2.13
-
-bug 0xb33fc
-ret 0xb37c4