[A83] Re: microcode

To: <assembly-83@lists.ticalc.org>
Subject: [A83] Re: microcode
From: "Henk Poley" <HPoley@DDS.nl>
Date: Tue, 18 Sep 2001 08:34:15 +0200
Reply-To: assembly-83@lists.ticalc.org


> Van: David Phillips <david@acz.org>
> 
> That looks more like 6502 than z80, since 6502 has fewer registers and
has
> the register names as part of the opcode name, and not as operands.

For the M6800 'Fewer registers' means there's only a A and B reg (both can
be used as accumulator). BTW, the i8080A/i8085A assembler syntax has the
same habbit of putting the registername inside the instruction-name.
Although not always, that's why people find it confusing to program for
this processor.

> > What, "similar assembler syntax"?
> >
> > Just some examples:
> >
> > RORA
> > ASRA
> > TAB
> > TPA
> > TSX
> > STAB <8bit adr>
> > INS
> > ASLA
> > RTI
> > BLE

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