Illegal Opcodes on the 7800

[vdub_bobby]

Anyone ever tested any of the illegal opcodes on the 7800?

[+bcombee]

Since 2600 games using those opcodes work on the 7800, I'm pretty confident they'll work in 7800 mode too.

[vdub_bobby]

Since 2600 games using those opcodes work on the 7800, I'm pretty confident they'll work in 7800 mode too.

Good point! Never thought of that...

[gdement]

Since 2600 games using those opcodes work on the 7800, I'm pretty confident they'll work in 7800 mode too.

 

Probably so. But it's worth pointing out that the CPU is running at a faster clock in 7800 mode, so it's always possible that unsupported instructions could become less stable at that speed.