[HN Gopher] Playing Board Games with Deep Convolutional Neural N...
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Playing Board Games with Deep Convolutional Neural Network on 8bit
Motorola 6809
Author : mci
Score : 33 points
Date : 2026-01-29 14:03 UTC (8 hours ago)
(HTM) web link (ipsj.ixsq.nii.ac.jp)
(TXT) w3m dump (ipsj.ixsq.nii.ac.jp)
| pklausler wrote:
| I think of the 6809 as a 16-bit microprocessor, myself (pace
| Wikipedia). It has 16-bit registers, load/stores, and
| add/subtracts. A nice clean architecture for its day.
| spogbiper wrote:
| I learned assembly on the 6809 and enjoyed it quite a bit. Much
| nicer than x86, which pretty much convinced me never to do
| assembly again
| Projectiboga wrote:
| It was a hybrid processor, 16 on the inside 8 bit on the bus.
| From Wikipedia.
|
| The Motorola 6809 ("sixty-eight-oh-nine") is an 8-bit
| microprocessor with some 16-bit features. It was designed by
| Motorola's Terry Ritter and Joel Boney and introduced in 1978.
| Although source compatible with the earlier Motorola 6800, the
| 6809 offered significant improvements over it and 8-bit
| contemporaries like the MOS Technology 6502, including a hardware
| multiplication instruction, 16-bit arithmetic, system and user
| stack registers allowing re-entrant code, improved interrupts,
| position-independent code, and an orthogonal instruction set
| architecture with a comprehensive set of addressing modes.
| adrian_b wrote:
| Motorola 6809 was a great improvement over Zilog Z80
| (previously the best "8-bit" processor), but unfortunately it
| was introduced too late, in 1979, when the transition towards
| 16-bit CPUs able to address more than 64 kB of memory had
| already started.
|
| Motorola had made the mistake of introducing at the same time 2
| different incompatible ISAs, one for CPUs covering the low-end
| of the market, MC6809, and one for CPUs covering the high-end
| of the market, MC68000. This mistake has cost them the chance
| of being selected for the IBM PC (because MC68000 was
| considered too expensive, while MC6809 was not future-proof,
| with its limited addressing space). After they have seen the
| success of Intel with its 2 software-compatible CPUs, 8086 for
| the high end and 8088 for the low end, Motorola has also
| introduced MC68008, a MC68000 variant for cheaper computers,
| but it was too late, as the IBM PC became dominant.
| Mountain_Skies wrote:
| It also kept the HCF, Halt and Catch Fire, opcode.
| RandomTeaParty wrote:
| "Board games" here means go (and only it?)
|
| I honestly was hoping for some tabletop eurogames or smth...
| actionfromafar wrote:
| ... _8-bit microprocessor launched by Motorola in 1978_
|
| ... _reached a playing strength on par with GNU Go_
| adrian_b wrote:
| MC6809 was actually launched in 1979, like MC68000, about one
| year after the launch of 8086 in 1978 by Intel.
|
| What Motorola did in 1978 was to publish some articles in the
| specialized magazines, announcing MC6809 as the future better
| replacement for their existing MC6800 derivatives. This is
| the same like Intel describing during last year how great
| will be their Panther Lake CPU, but Panther Lake has really
| been launched only a couple of days ago.
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(page generated 2026-01-29 23:01 UTC)