What is the NOP value for the Hitachi SH4?

[47iscool]

Just wondering since I'm starting to hack DC games with ASM codes.

[Tony H]

If it's the same as 32x (SH2), then NOP is 0009.

[Abystus]

If it's the same as 32x (SH2), then NOP is 0009.

This should be correct as Marvel Vs. Capcom 2 arcade uses Sega Naomi hardware (SH-4), and is what the Dreamcast is based on.

[47iscool]

If it's the same as 32x (SH2), then NOP is 0009.

Since the GameShark on the system can use 32-bit codes would that 00090000 or 00000009?

I'm guessing the latter, and thanks for the info.

[lee4]

Sega Saturn use same SH2 as 32x

[47iscool]

Maybe I'll back off ASM for DC games.

Two codes I've tried lock it up, here's what I did:

Sonic Adventure 2, finds rings and set write breakpoint. Run into an enemy and get hit to lose rings.

Cheat Engine snaps on this: 8C0523F6

So I try:
010523F6 00000009
and it freezes.

Something else that is odd that I noticed, the last value of the address ended in 6. Shouldn't only end with 0,4,8 or C?

[Helder]

Here is a complete list of instructions thanks to Pugsy.