On Sunday, October 23, 2011 11:46 PM, "Chris McSweeny"  wrote:
> On Sun, Oct 23, 2011 at 5:40 AM, RussellMc <apptechnz@gmail.com> wrote:
> > FWIW - the eg MC6800 makes this easy. The 8080 makes it hard. The Z80
> > adds icing to the 8080 cake.
>=20
> I presume it doesn't count if you started with assembly and hand
> assembled to hex? I can't be the only person to start my low level
> programming career with a ZX81, armed only with a manual and a hex
> editor.

Hello Brother!
You're not the only one. I made an audio digital delay with one, using a
ADC0820 A/D converter, a D/A like maybe the DAC0801 and an NE570
compandor for noise reduction. With a 64K third-party ram expansion.
That's about all I remember about it.

Cheers,

Bob

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