[A83] 6800 (Re: Re: microcode)
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[A83] 6800 (Re: Re: microcode)
At 20:53 2001-09-15, you wrote:
>What, "similar assembler syntax"?
oops. :)
ok, 6809 is more similar at least.
Or maybe I dreamt.
>Just some examples:
>Let's see if you know what they do :-p
heh. I'm sure you didn't write that to test me, but I have to try anyway :)
I have to guess some. maybe:
>RORA
Rotate Right, register A
>ASRA
Aritmetic Shift Right A
>TAB
Transfer A to B ?
>TPA
I'm lost... if there isn't a P register and its
transfer P to A.
>TSX
Transfer S to X maybe?
>STAB <8bit adr>
Store B at adress.
>INS
I'm lost..
hmm. Insert Number in S? nah.. I don't think so..
>ASLA
Aritmetic Shift Left A
>RTI
Return from interrupt maybe?
>BLE
branch if less then or equal?
Ok! how many right did I get? any? :)
>BTW: It could be that 'modern' assemblers use a different 'better' syntax.
That is also very possible. Or I was drunk or something when I formed my
association between z80 and 680x
and it has lingered in my brain since then.
///Olle
References: