Re: Hardware emulation of 6509 using 6502?

By the way, was the MAX Machine really sold in early 1982 or is that 
popular belief that it was sold in early 1982?

We're quite certain it was announced in early 1982, but when I 
previously browsed through several Japanese computer and games magazines 
from 1982-83, the earliest mention of the MAX Machine was found in 
Nov-Dec 1982, at the same time as the Japanese C64 and it wasn't 
properly tested until a bit into 1983. If it had been on the market for 
nearly a year, that was unusually late for a games magazine to do a 
write-up spread over several pages.

It has been speculated that the MAX was planned to be sold in early 
1982, but for whichever reason - hardware issues or lack of software - 
it got severly delayed. Somewhere there should be documents or books 
about this, but I don't know where to look.

Another aspect that should also be considered is which were the first 
C64 games to be available. Generally it is thought the first cartridge 
games were ports of the MAX versions, but those who were around in 1982 
have different opinions on whether there were any cartridges to buy when 
the C64 was launched or if those games appeared several months later, in 
time for Christmas 1982. While it probably can be deducted which games 
were the first to be written, it isn't the same as the first games to be 
sold. Also HESware holds a claim for being the first 3rd party publisher 
of cartridge games, possibly even beating Commodore themselves.

If the MAX was already on the market in Japan, those cartridge 
conversions to run on the C64 should have been done, manufactured and 
ready to be sold by the day the C64 hit the market, no doubt about it. 
Again this is probably found in a book or two, though I don't know which 
one to look in and how accurate the sources would be.

Best regards

Anders Carlsson


Den 2018-03-07 kl. 02:18, skrev Steve Gray:
> The Max Machine uses a 6566 VIC-II chip (which uses SRAM rather than 
> DRAM). Early documentation of the CBM-II series (source code) also 
> mentions use of the 6566. However, released machines use the 6567, 
> which leads me to believe that both were developed at almost the same 
> time. The CBM-II series and the C64 are also very close, and were 
> announced at the same time, unfortunately delays in the CBM-II line 
> release make it seem much later.
>
> In my B-Series prototype: Commodore CBM-II B-Series Prototype Computer 
> <http://www.6502.org/users/sjgray/computer/bproto/index.html>, which 
> so far is the earliest known CBM-II machine, the 6509 CPU is dated 
> 2282 (22nd week of 1982), the SID is 1382, and the 6526 is 0882
>
> Steve
>
> ------------------------------------------------------------------------
> *From:* Michał Pleban <lists@michau.name>
> *To:* cbm-hackers@musoftware.de
> *Sent:* Tuesday, March 6, 2018 5:10 PM
> *Subject:* Re: Hardware emulation of 6509 using 6502?
>
> smf wrote:
>
> > The design is horrendous, fortunately they sorted it out when they did
> > the c64.
>
> I am not sure what was the actual timeline here? Was the P500 or 64
> developed first? The CPU part numbers (6509 vs. 6510) might suggest that
> the B series were designed first, but the MAX Machine (which is the true
> ancestor of the 64) was being sold some time before the B series was
> even announced.
>
> Regards,
> Michau.
>
>
>
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