Satourne Error: Opcode invalid

DiCE · November 4th, 2003

Greetings,
I have a few problems while trying to run Saturn iso's on Satourne, as shown below:

Using SH2 dynarec2 plugin Ver 1.0 I get the following
error when loading a ISO:
Opcode invalide (SH2 esclave)

Using SH2 interpreter plugin Ver 1.2 I get the following
error when loading a ISO:
Unknown opcode (slave SH2) @0x06017B3E: 0x0000

Also a SCU error:
Writing to DMA status, by ignoring this error Satourne desides to crash.

Is there a way to fix these problems?

Thanks

DeathSight · November 4th, 2003

heh sorry i cant help. i have heard of this same problem b4 with others but, im mostly lost. sorry

**liquid** · November 4th, 2003

Satourne has probably encountered an unemulated opcode, You will need to wait for the next release of satourne, it will have higher compatibility and will be more stable than the current version which is available.

**Runik** · November 5th, 2003

This kind of problem isn't related to an unemulated opcode : Satourne has all the opcodes fully emulated.
This is typically happening when the game jumps to an unpopulated memory area, the slave sh2 tries to execute some code that isn't there yet, resulting in the unknown opcode problem.
The SCU message refers to a register that shouldn't be written (according to the doc) and that was written anyway. It doesn't impact things, it's just a control.

November 4th, 2003	#1 (permalink)
DiCE Registered User Join Date: Nov 2003 Posts: 3	Satourne Error: Opcode invalid Greetings, I have a few problems while trying to run Saturn iso's on Satourne, as shown below: Using SH2 dynarec2 plugin Ver 1.0 I get the following error when loading a ISO: Opcode invalide (SH2 esclave) Using SH2 interpreter plugin Ver 1.2 I get the following error when loading a ISO: Unknown opcode (slave SH2) @0x06017B3E: 0x0000 Also a SCU error: Writing to DMA status, by ignoring this error Satourne desides to crash. Is there a way to fix these problems? Thanks Last edited by DiCE; November 4th, 2003 at 14:38.

November 4th, 2003	#2 (permalink)
DeathSight Dragon Master Mike Join Date: Oct 2003 Location: Cleveland, OHIO Posts: 222	Re: Satourne Error: Opcode invalid heh sorry i cant help. i have heard of this same problem b4 with others but, im mostly lost. sorry __________________

November 4th, 2003	#3 (permalink)
liquid Ebichu! Join Date: Apr 2001 Location: Tampa Bay, Florida Posts: 2,088	Re: Satourne Error: Opcode invalid Satourne has probably encountered an unemulated opcode, You will need to wait for the next release of satourne, it will have higher compatibility and will be more stable than the current version which is available.

November 5th, 2003	#4 (permalink)
Runik Emu author Join Date: Aug 2003 Location: France Posts: 116	Re: Satourne Error: Opcode invalid This kind of problem isn't related to an unemulated opcode : Satourne has all the opcodes fully emulated. This is typically happening when the game jumps to an unpopulated memory area, the slave sh2 tries to execute some code that isn't there yet, resulting in the unknown opcode problem. The SCU message refers to a register that shouldn't be written (according to the doc) and that was written anyway. It doesn't impact things, it's just a control.

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