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It was thus said that the Great Francisco Olarte once stated:
> On Thu, 16 Feb 2023 at 15:05, Lorenzo Donati <> wrote:
> > The AVR 8-bit architecture (used in ATmega328 MCUs, for and other uChip
> > former Atmel MCUs) has a half carry bit in its flag register.
> it's useful, specially in slow processors, how many have used the
> classic Z80 sequence
> add ax,0x40
> daa
> adc ax,0x90
> daa

  Um, aside from using AX (which is from the 8086), what's so speial about
this sequence?  Aside from doing a bit of BCD atrithmetic?