Dasm does not match nx_800.500s_core.pdf ?

91crxsi

#1 14 Mar 2005, 12:44 ◈ 2025-06-29

Hi,

I was working on commenting the 273 rom and noticed that the byte sequence C6 00 5B was dasmed to CMP A, #5b00. I'm sure this is correct because makes sense in context, but I was wondering why this does not match with the documentation for the nX-8/500S Core instruction manual? In that document, the only op that starts with C6 is a MOV command. Where did whoever wrote the dasm program get the correct opcodes?

91crxsi

Smooth1

#2 14 Mar 2005, 15:30 ◈ 2025-06-29

OKI 66201 Op Code list...

CMP A, obj

#N16 | C6 | NL | NH

91crxsi

#3 15 Mar 2005, 00:42 ◈ 2025-06-29

...yes, but where did the 66201 op code list come from (what document)? I thought it was from the nX-8/500S core document, but I guess not. Does anyone have a soft copy of the correct document?

Thanks,
91crxsi

blundar

#4 24 Mar 2005, 12:35 ◈ 2025-06-29

the PDFs are on the wiki.