User talk:Kozarovv

PS2 netemu

Picard notes - edited

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0x00: end, branch if is_cnf == 0(false), ret *sub_46BD4, else do WE HAVE A CONFIG: cd setup
0x01: value2, value3(max 59): exec start_iso_148EF0(value2, *entrie), *entrie from *vtab_9363F8 by index(value3)


0x02: config_cmd_0x02(value2); store value2 on (u32)*0xB530DC
0x03: config_cmd_0x03(void); set (u8)*0x94A290 to 0
0x04: config_cmd_0x04(u32 value2); todo...

0x06: config_cmd_0x06(void); set (u32)*0x40181B20, (u32)*0x40181B24, (u32)*0x40181B28 and (u32)*0x40181B2C to 0x14F80
0x07: config_cmd_0x07(value2); store (u32)value2 on *0x94A27C = GS_VERT_PRECISE?
-----------------------------------------------------------------------------------
0x08: config_cmd_0x08(u64 arg[4]); = MASK_PATCH
      arg[0] = ((value2 <<32) | value3)
      arg[1] = ((value4 <<32) | value5)
      arg[2] = ((value6 <<32) | value7)
      arg[3] = ((value8 <<32) | value9)
-----------------------------------------------------------------------------------
0x09: value2(count) = DOUBLE UINT32_t_EE_MEMPATCH
      
      struct data {    // size 0x18
        u32 unk_00;    // 0x00: value3
        u32 unk_04;    // 0x04: padding
        u64 unk_08;    // 0x08: ((value4 <<32) | value5)
        u64 unk_10;    // 0x10: ((value6 <<32) | value7)
      }
      
      sub_122904(1, 1, data); for count
-----------------------------------------------------------------------------------
0x0A: value2 = count = UINT32_t_EE_MEMPATCH
      struct data {    // size 0x18
        u32 unk_00;    // 0x00: value3
        u32 unk_04;    // 0x04: padding
        u64 unk_08;    // 0x08: (u32)value4
        u64 unk_10;    // 0x10: (u32)value5
      }
      
      sub_122904(2, 4, &var_198); in loop, to config end
-----------------------------------------------------------------------------------
0x0B: MECHA_config_cmd_0x0B(*thr_mecha_obj, value2); try again if not ret 0    todo... = GAMEDISC_PATCH (-0xC per offset)
-----------------------------------------------------------------------------------
0x0C: X = (value2 >>16) 0, 1 or 2; Y = (value2 & 0xFFFF)
      MECHA_config_cmd_0x0C_0(*thr_mecha_obj, Y), set (u32)thr_mecha_obj.unk_004C to Y and set (u32)thr_mecha_obj.unk_005C to Y /// bytes? Always multiply of 8. 
      MECHA_config_cmd_0x0C_1(*thr_mecha_obj, X), set (u32)thr_mecha_obj.unk_0048 to X
-----------------------------------------------------------------------------------
0x0D: store (u8)value2(0 or 1) on *0xB4A310
0x0E: config_cmd_0x0E(value2)
0x0F: config_cmd_0x0F(u32 value2, u32 value3) = add/sub accu
0x10: config_cmd_0x10(u32 value2, u32 value3) = accu
0x11:
0x12: value2 = count of next (u32)values, do config_cmd_0x12(value) for each = Pattern Patch?
0x13: config_cmd_0x13set(), set *0x1BDC790 to ((value2 <<32) | value3) Memory card related (timing? reported free space?), Value 2 seems to be always 0
0x14: sub_139354(), store 1 on 0x247E9E8, also done in thr_SYS() if if stat_flag[45:45] is set
0x15: config_cmd_0x15(u32 value2(0 or 1)), check 256 u32 from 0x4003A2C0, if (value & 0xFF800000) == 0x30000000, replace with 0x35003F80

0x17: store (u8)value2 on *0x2A0DC52

0x19: pad_set_0xB5C500(), store 1 on 0xB5C500
0x1A: set 0x40300350 to 1
0x1B: set 0x40300360 to 1
0x1C: store (u8)value2 on *0x949FD5
0x1D: store (u8)value2 on *0xB5B87A
0x1E: store (u8)value2 on *0xB5C501
0x1F: set_sub_121FE4(value2), store (u32)value2 on *0xB56B80
0x20: store (u64)((value2 <<32) | value3) on *0x949FC8
-----------------------------------------------------------------------------------
0x21: value2: 0: set (u8)*0x94A291 to 0 and (u8)*0x2A0DC5C to 0
              1: set (u8)*0x94A291 to 0 and (u8)*0x2A0DC5C to 1
              2: set (u8)*0x94A291 to 1 and (u8)*0x2A0DC5C to 0
-----------------------------------------------------------------------------------
0x22: set (u8)thr_mecha_obj.unk_00EA to 1 
0x23: sub_123080(), copy 256 byte from 0x40181A10 to 0x40182110 and set 0x40182120, 0x40181B24, 0x40181B28 and 0x40181B2C to 0x14E00
0x24: config_cmd_0x24(), store ((value2 <<32) | value3) on *0xB5C1B8

0x26: config_cmd_0x26(u32 value2, u32 value3); add accu
0x27: config_cmd_0x27(u32 value2, u32 value3); accu
0x28: MECHA_config_cmd_0x28(*thr_mecha_obj, u32 value2); set thr_mecha_obj.unk_0050, value2 <4
0x29: MECHA_config_cmd_0x29(*thr_mecha_obj, value2, value3); set (u32)thr_mecha_obj.unk_0054 to value2 and (u32)thr_mecha_obj.unk_0058 to value3
0x2A: set (u8)*0xB52BBD to 1
0x2B: MECHA_config_cmd_0x2B(*thr_mecha_obj, 1), set (u8)thr_mecha_obj.unk_0083 to 1 = Setting mecha HACK to show GODZCD as GODZCDDA

0x2D: config_cmd_0x2D(u32 value2), store (u64)((value2 <<32) | value2) on *0x4002B4F0 and *0x4002B4F8
0x2E: store value2 on thr_mecha_obj.unk_002C
0x2F: config_cmd_0x2F(value2); store (u32)value2 on *0x400AE784  SET_SPU2_PARAM 1,2





0x35: set "Force Flip Field" on







0x3D: store (u32)value2 on UI_obj.unk_DC
0x3E: set *0xB4A311 to 1
0x3F: config_cmd_0x3F(value2); store (u32)value2 on *0x4002B700
0x40: UI related, UI_285AC8(1) = store 1 on 0x402002F0
0x41: config_cmd_0x41(); set (u8)*0xB5B540 to 1
0x42: config_cmd_0x42(value2); repeat until ret 0,   todo...
-----------------------------------------------------------------------------------
0x43: X = value2, or -1 if config end      value2 can be negative. -1 cause flickering in burnout2
      UI_285AC8(X); store (u32)X on *0x402002F0
-----------------------------------------------------------------------------------
0x44: UI related, set UI_obj.flag_ED to 1, .set_sub_27AEE8(*obj_30700D0, 0) = *0x3172FD0 to 0
0x45: set (u8)*0x306F381 to 1
0x46: set (u8)*L2H_Impr to 1; "L2H Improvement" on
0x47: set (u8)*XOR_CSR_B5B378 to 1; "XOR CSR" on = XOR System Status Register 
0x48: "VSYNC DELAY": store (u32)value2 on *vsync_delay_00 and (int32)value3 on *vsync_delay_04 //second value is int32, not uint32
0x49: sub_49644(11, 0, 0), wait for (u32)0x40200420 = 0, than set (u32)0x40200424 to 0, (u64)0x40200428 to 0, (u32)0x40200420 to 11
0x4A: set: 0x40182D14, 0x40182D20, 0x40182D24, 0x40182D28 and 0x40182D2C to (u32)0x15100     
-----------------------------------------------------------------------------------
0x4B: save path related
      if next offset == end of config: set *cnf_cur_offset to next offset + 0x10
      value1(cmd, 0x4B)
      
      gesammt 0x10
      u32 value2(r3);
      u32 *value3(*string, ?);
      
-----------------------------------------------------------------------------------
0x4C: iso.bin.enc related
      value2, value3(mode 1, 2, 3)
-----------------------------------------------------------------------------------
0x4D: X = value2, or -1 if config end
      sub_49644(12, X, 0), wait for (u32)0x40200420 = 0, than set (u32)0x40200424 to X, (u64)0x40200428 to 0, (u32)0x40200420 to 12
-----------------------------------------------------------------------------------


0x50: config_cmd_0x50(), set (u8)*0x2456610 to 1

clamping

PS3 CELL is full IEEE 754 compliant only with PPE/PPU part. SPE/SPU is compliant with IEEE 754 only in double precision, while single precision round-towards-zero instead of round-towards-even. PS2 is not IEEE 754 compliant at all. In summary is still not clear that FPU clamping is needed and used in ps2_netemu, but probably not.

To do: https://gcc.gnu.org/ml/gcc-patches/2013-07/msg00231.html "This is the case on the PS2 and the PS3. For example inf minus inf should be NaN, but on both systems it is 0. I tested it on r5900 and the PS3 SPU." Seems to confirm above.

fpu/cop2 accuracy

To do

• --fpu-accurate-addsub-range
• --fpu-accurate-muldiv-range
• --cop2-accurate-mul-range
• --cop2-accurate-addsub-range

• 0x0E - Same as 0x26 but not used per range
• 0x0F
• 0x10 - Massive slow down while used at full game memory range. BR2
• 0x26 ADD/SUB accu (Also for float)
• 0x27 COP2 Accu (confirmed)

0x10

Weird usage, include floats, cop2 advanced operations, converting double to single precision floating-point. There is small possibility that is overall accuracy command. Just like software mode from pcsx2

0x27

Example code where Sony used command (with commands comment):

0x3476F8                 cop2    0x1CC09BC        # vmulax.xyz ACC,vf01,vf12x
0x3476FC                 cop2    0x1CC10BD        # vmadday.xyz ACC,vf02,vf12y
0x347700                 cop2    0x1CC1B8A        # vmaddz.xyz vf14, vf03, vf12z
0x347704                 cop2    0x1E409BC        # vmulax.xyzw ACC,vf01,vf04x
0x347708                 cop2    0x1E410BD        # vmadday.xyzw ACC,vf02,vf04y
0x34770C                 cop2    0x1E419CA        # vmaddz.xyzw vf07, vf03, vf04z
0x347710                 cop2    0x1CB739B        # vmulw.xyz vf14,vf14,vf11w
0x347714                 cop2    0x1E509BC        # vmulax.xyzw ACC,vf01,vf05x
0x347718                 cop2    0x1E510BD        # vmadday.xyzw ACC,vf02,vf05y
0x34771C                 cop2    0x1E51A0A        # vmaddz.xyzw vf08, vf03, vf05z
0x347720                 cop2    0x1CB7368        # vadd.xyz vf13, vf14, vf11
0x347724                 cop2    0x1E609BC        # vmulax.xyzw ACC,vf01,vf06x
0x347728                 cop2    0x1E610BD        # vmadday.xyzw ACC,vf02,vf06y
0x34772C                 cop2    0x1E61A4A        # vmaddz.xyzw vf09, vf03, vf06z

DECKARD chip internal settings (can be related to usleep hooks)

Since 750XX ps2 Sony abandoned using MIPS IOP chip, exchanging it to PowePC DECKARD chip. Here are some internal deckard settings to keep compatibility for ps2 titles on scph-750XX and later. We can safely assume that some of them are needed also on PS3, and are used in config tables.

deckard	ps2_gxemu	notes
PARAM_MDEC_DELAY_CYCLE		PS1 Related?
PARAM_SPU_INT_DELAY_LIMIT
PARAM_SPU_INT_DELAY_PPC_COEFF
PARAM_SPU2_INT_DELAY_LIMIT	SPU2_BEHAVIOR?
PARAM_SPU2_INT_DELAY_PPC_COEFF	SPU2_BEHAVIOR?
PARAM_DMAC_CH10_INT_DELAY	DMAC_CH10_INT_DELAY
PARAM_CPU_DELAY		0x20?
PARAM_SPU_DMA_WAIT_LIMIT
PARAM_GPU_DMA_WAIT_LIMIT
PARAM_DMAC_CH10_INT_DELAY_DPC
PARAM_CPU_DELAY_DPC
PARAM_USB_DELAYED_INT_ENAB
PARAM_TIMER_LOAD_DELAY
PARAM_SIO0_DTR_SCK_DELAY
PARAM_SIO0_DSR_SCK_DELAY_C
PARAM_SIO0_DSR_SCK_DELAY_M
PARAM_MIPS_DCACHE_ON
PARAM_CACHE_FLASH_CHANNELS

unsorted deckard:

• PARAM_MDEC_DELAY_CYCLE
• PARAM_SPU_INT_DELAY_LIMIT
• PARAM_SPU_INT_DELAY_PPC_COEFF
• PARAM_SPU2_INT_DELAY_LIMIT
• PARAM_SPU2_INT_DELAY_PPC_COEFF
• PARAM_DMAC_CH10_INT_DELAY
• PARAM_CPU_DELAY
• PARAM_SPU_DMA_WAIT_LIMIT
• PARAM_GPU_DMA_WAIT_LIMIT
• PARAM_DMAC_CH10_INT_DELAY_DPC
• PARAM_CPU_DELAY_DPC
• PARAM_USB_DELAYED_INT_ENABLE
• PARAM_TIMER_LOAD_DELAY
• PARAM_SIO0_DTR_SCK_DELAY
• PARAM_SIO0_DSR_SCK_DELAY_C
• PARAM_SIO0_DSR_SCK_DELAY_M
• PARAM_MIPS_DCACHE_ON
• PARAM_CACHE_FLASH_CHANNELS

unsorted gxemu:

• "SIO2_MASK"
• "DEV9_MASK"
• "USB_MASK"
• "SIF_DMA_SYNC"
• "SIF_DMA_LOAD"
• "DMAC_CH10_INT_DELAY"
• "MECHA_RECOGTIME"
• "CPU_DELAY"
• "DEV5_INT_SPEED"
• "CDVD_READ_DELAY"
• "SPU2_BEHAVIOR"

Per game hooks 0x01

There are some per game hooks in 0x01 netemu table not compatible with other games at all. Good example are GTA fixes, or triace hack. More coming soon™... PS4 shows that hook commands sometimes are not even needed to make game run correctly. Sometimes there are commands related to fixing timing for new TV standard, sometime minor fixes. Looks like there are only few cases when hooks are fixing major issues. Anyway.. 90% 0x01 commands are per title ID fixes. Not really worth reversing, in most cases is just rewritten game function.

• 0x0A - Triace (0x4b1ed5e7 db prec? custom Addi rountime)
• 0x0B - Triace, interesting. Star Ocean don't need it
• 0x12 - Disney's Finding Nemo hook
• 0x13 - 0x16 - Snowblind hacks (custom name ;) )
• 0x1B - 0x1E - Street Racing Syndicate hook
• 0x1F - 0x22 - Ford vs. Chevy
• 0x0F - 0x11, and 0x3B doing the same but "probing" for conditions, and answering in different addresses

PSPEmu

The key for minis2 is known, you can just use npdtool to encrypt it. ofc you can patch it to read unencrypted ones but whats the advantage?

are you interested in any specific game?

https://github.com/hrydgard/ppsspp/commits/525cce095a6e4ac569736c14dbcde7b64a92328f/assets/compat.ini

i patched some games and found some more configurations:

http://www.psdevwiki.com/ps3/Talk:PSP_Emulation#PSP_compatibility_lists

--Mysis

• My point is to use PSP Remaster Launcher because it allow to use minis2 config directly with decrypted ISO. With this patch I should be able to run test games very easy/fast, because I can use plain ISO + plain minis2.txt without need for external tools. I can then even edit config thru ftp text editor without need to do any additional steps (specially useful with black screen games). Is not necessary, just make things much easier. I'm interested in overall tests with games I have, not any specific game. --Kozarovv

> Ok, patching is quite easy, its in the psp_emulator.self there is only one sceNpDrmIsAvailable followed by a OpenFile...:

seg001:000000000001158C 41 9E 00 1C                 beq       cr7, no_minis2
seg001:0000000000011590 7B A3 00 20                 clrldi    r3, r29, 32
seg001:0000000000011594 7F E4 FB 78                 mr        r4, r31
seg001:0000000000011598 48 04 98 DD                 bl        _sceNp_sceNpDrmIsAvailable -> 38 60 00 00                 li        r3, 0
seg001:000000000001159C E8 41 00 28                 ld        r2, 0x18A0+var_1878(r1)
seg001:00000000000115A0 2F 83 00 00                 cmpwi     cr7, r3, 0
seg001:00000000000115A4 41 9E 06 58                 beq       cr7, loc_11BFC
seg001:00000000000115A8
seg001:00000000000115A8             no_minis2:                              # CODE XREF: main+74C�j
seg001:00000000000115A8                                                     # main+DE4�j ...
seg001:00000000000115A8 80 1E 00 08                 lwz       r0, 8(r30)
seg001:00000000000115AC 2F 80 00 02                 cmpwi     cr7, r0, 2
seg001:00000000000115B0 41 9E 05 54                 beq       cr7, read_2nd_settings

and possibly, but not sure:
seg001:0000000000011BFC             loc_11BFC:                              # CODE XREF: main+764�j
seg001:0000000000011BFC 38 00 00 02                 li        r0, 2
seg001:0000000000011C00 7F E3 FB 78                 mr        r3, r31
seg001:0000000000011C04 38 80 00 00                 li        r4, 0
seg001:0000000000011C08 38 A1 00 74                 addi      r5, r1, 0x18A0+var_182C
seg001:0000000000011C0C 38 C1 00 90                 addi      r6, r1, 0x18A0+var_1810 -> 38 C0 00 00                 li        r6, 0
seg001:0000000000011C10 38 E0 00 08                 li        r7, 8                   -> 38 E0 00 00                 li        r7, 0
seg001:0000000000011C14 F8 01 00 90                 std       r0, 0x18A0+var_1810(r1)
seg001:0000000000011C18 48 04 91 DD                 bl        _sys_fs_cellFsOpen

but if you are using cobra mode then cobra is checking psp_emulator hash? and might not apply the other patches: https://github.com/Joonie86/COBRA-7.3/blob/master/481/REX/SRC/stage2/modulespatch.h ? Not sure how it works...

Mysis

• Cobra hash is no problem, I can recompile stage2, or just even edit hash in binary after adding patch. Thanks for sharing, you just made my testing much easier!

--Kozarovv