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Senryoku / Deecy

Experimental Dreamcast emulator written in Zig
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Legacy of Kain - Soul Reaver immediate crash #51

Open Senryoku opened 1 month ago

Senryoku commented 1 month ago 
PC: 0C012156
Invalid _get_memory @1C3032D0
thread 24536 panic: Invalid _get_memory @{X:0>8}

Looks similar to #43. Interpreter doesn't help.

panic_debug: PC: 8C012172
Invalid _get_memory @1C3032D0
thread 11612 panic: Invalid _get_memory @{X:0>8}
H:\Source\Deecy\src\sh4.zig:867:9: 0x1a26f45 in panic_debug__anon_12735 (Deecy.exe.lto.obj)
        @panic(fmt);
        ^
H:\Source\Deecy\src\sh4_interpreter.zig:132:56: 0x1a8c59e in movl_Rm_atRn (Deecy.exe.lto.obj)
    cpu.write32(cpu.R(opcode.nmd.n).*, cpu.R(opcode.nmd.m).*);
                                                       ^
H:\Source\Deecy\src\dreamcast.zig:439:40: 0x1a2736d in tick (Deecy.exe.lto.obj)
        const cycles = self.cpu.execute(max_instructions);
                                       ^
H:\Software\zig\0.13.0-dev.351+64ef45eb0\files\lib\std\Thread.zig:518:30: 0x1b4ddda in entryFn (Deecy.exe.lto.obj)
                return callFn(f, self.fn_args);
Senryoku commented 1 month ago

CPU Trace:

[8C012146] 1001000101001010 mov.w @(74,PC),R1    R1 =8C2C3F10, R4 =8C0596C0, T=1, Q=0, M=0
[8C012146]             914A                      R1 =00002060, R4 =8C0596C0, T=1, Q=0, M=0
[8C012148] 0110001100100010 mov.l @R2,R3         R3 =8C2C9720, R2 =8C2C9720, T=1, Q=0, M=0
[8C012148]             6322                      R3 =8C2C3AB0, R2 =8C2C9720, T=1, Q=0, M=0
[8C01214A] 1001001001001000 mov.w @(72,PC),R2    R2 =8C2C9720, R4 =8C0596C0, T=1, Q=0, M=0
[8C01214A]             9248                      R2 =00002060, R4 =8C0596C0, T=1, Q=0, M=0
[8C01214C] 0000110100011010 sts MACL,R13         R13=544F4853, R1 =00002060, T=1, Q=0, M=0
[8C01214C]              D1A                      R13=00000000, R1 =00002060, T=1, Q=0, M=0
[8C01214E] 0011001000111100 add R3,R2            R2 =00002060, R3 =8C2C3AB0, T=1, Q=0, M=0
[8C01214E]             323C                      R2 =8C2C5B10, R3 =8C2C3AB0, T=1, Q=0, M=0
[8C012150] 0000111010110111 mul.l R11,R14        R14=00000000, R11=00000350, T=1, Q=0, M=0
[8C012150]              EB7                      R14=00000000, R11=00000350, T=1, Q=0, M=0
[8C012152] 0011001011011100 add R13,R2           R2 =8C2C5B10, R13=00000000, T=1, Q=0, M=0
[8C012152]             32DC                      R2 =8C2C5B10, R13=00000000, T=1, Q=0, M=0
[8C012154] 0000001011000110 mov.l R12,@(R0,R2)   R2 =8C2C5B10, R12=4D545350, T=1, Q=0, M=0
[8C012154]              2C6                      R2 =8C2C5B10, R12=4D545350, T=1, Q=0, M=0
[8C012156] 0110001101000010 mov.l @R4,R3         R3 =8C2C3AB0, R4 =8C0596C0, T=1, Q=0, M=0
[8C012156]             6342                      R3 =8C2C9720, R4 =8C0596C0, T=1, Q=0, M=0
[8C012158] 0110001000110010 mov.l @R3,R2         R2 =8C2C5B10, R3 =8C2C9720, T=1, Q=0, M=0
[8C012158]             6232                      R2 =8C2C3AB0, R3 =8C2C9720, T=1, Q=0, M=0
[8C01215A] 0110001111110011 mov R15,R3           R3 =8C2C9720, R15=8C00F38C, T=1, Q=0, M=0
[8C01215A]             63F3                      R3 =8C00F38C, R15=8C00F38C, T=1, Q=0, M=0
[8C01215C] 0100001100001000 shll2 R3             R3 =8C00F38C, R0 =00000064, T=1, Q=0, M=0
[8C01215C]             4308                      R3 =3003CE30, R0 =00000064, T=1, Q=0, M=0
[8C01215E] 0011000100101100 add R2,R1            R1 =00002060, R2 =8C2C3AB0, T=1, Q=0, M=0
[8C01215E]             312C                      R1 =8C2C5B10, R2 =8C2C3AB0, T=1, Q=0, M=0
[8C012160] 1001001000111110 mov.w @(62,PC),R2    R2 =8C2C3AB0, R3 =3003CE30, T=1, Q=0, M=0
[8C012160]             923E                      R2 =00000290, R3 =3003CE30, T=1, Q=0, M=0
[8C012162] 0011110100011100 add R1,R13           R13=00000000, R1 =8C2C5B10, T=1, Q=0, M=0
[8C012162]             3D1C                      R13=8C2C5B10, R1 =8C2C5B10, T=1, Q=0, M=0
[8C012164] 0010110111100000 mov.b R14,@R13       R13=8C2C5B10, R14=00000000, T=1, Q=0, M=0
[8C012164]             2DE0                      R13=8C2C5B10, R14=00000000, T=1, Q=0, M=0
[8C012166] 0110000001000010 mov.l @R4,R0         R0 =00000064, R4 =8C0596C0, T=1, Q=0, M=0
[8C012166]             6042                      R0 =8C2C9720, R4 =8C0596C0, T=1, Q=0, M=0
[8C012168] 0000110100011010 sts MACL,R13         R13=8C2C5B10, R1 =8C2C5B10, T=1, Q=0, M=0
[8C012168]              D1A                      R13=00000000, R1 =8C2C5B10, T=1, Q=0, M=0
[8C01216A] 0101000000000001 mov.l @(1,R0),R0     R0 =8C2C9720, R0 =8C2C9720, T=1, Q=0, M=0
[8C01216A]             5001                      R0 =8C2C6210, R0 =8C2C6210, T=1, Q=0, M=0
[8C01216C] 0011000011011100 add R13,R0           R0 =8C2C6210, R13=00000000, T=1, Q=0, M=0
[8C01216C]             30DC                      R0 =8C2C6210, R13=00000000, T=1, Q=0, M=0
[8C01216E] 0011001000001100 add R0,R2            R2 =00000290, R0 =8C2C6210, T=1, Q=0, M=0
[8C01216E]             320C                      R2 =8C2C64A0, R0 =8C2C6210, T=1, Q=0, M=0
[8C012170] 0011001100101100 add R2,R3            R3 =3003CE30, R2 =8C2C64A0, T=1, Q=0, M=0
[8C012170]             332C                      R3 =BC3032D0, R2 =8C2C64A0, T=1, Q=0, M=0
[8C012172] 0010001101010010 mov.l R5,@R3         R3 =BC3032D0, R5 =00000000, T=1, Q=0, M=0
panic_debug: PC: 8C012172
Invalid _get_memory @1C3032D0
thread 17668 panic: Invalid _get_memory @{X:0>8}

With a small hack redirecting the write from BC3032D0 to 0C3032D0 the game goes a little bit further (intros play, mostly black menu and Software Reset on start), but this is obviously not a fix.