I was long gone by the C65 time but heard about it. I was under the impression that this was an attempt to keep the engineers busy while they looked for someone to buy the company. The person designing the C65 was a chip designer so it may have been even worse off then my bunch of miscreants were in 84.
Also when I was speaking of the last of a type or the first of something , I was referring to mass produced, so typically something would have had to sell a million or more before it made it inside our "bubble". I actually knew more about all of the cool little computers of the days like compucolors, etc before joining... after joining it was all about the competition, You get kind of a mass-production tunnel vision.
Bil
Commodore shared the buss so on every clock cycle there was a 6502 cycle and a video fetch cycle, the 650s ran continuously with he exception was that the VIC chip would occasionally do a DMA to fetch sprite data pointers. We also doubled the 6502 clock during blanking times including Vert and Horz and when using strictly 80 column mode. The 6502 was really a 2Mhz type since it had to do everything i half of one mhz normally.
Since we used DRAM's we also had to line up their signals in a compatible way; making sure we had data hold time and yet enough time for RAS-precharge.
The 02 does complete one bus operation per clock cycle, some instructions are multiple operations.
Slashdot Mirror
I was long gone by the C65 time but heard about it. I was under the impression that this was an attempt to keep the engineers busy while they looked for someone to buy the company. The person designing the C65 was a chip designer so it may have been even worse off then my bunch of miscreants were in 84. Also when I was speaking of the last of a type or the first of something , I was referring to mass produced, so typically something would have had to sell a million or more before it made it inside our "bubble". I actually knew more about all of the cool little computers of the days like compucolors, etc before joining... after joining it was all about the competition, You get kind of a mass-production tunnel vision. Bil
Commodore shared the buss so on every clock cycle there was a 6502 cycle and a video fetch cycle, the 650s ran continuously with he exception was that the VIC chip would occasionally do a DMA to fetch sprite data pointers. We also doubled the 6502 clock during blanking times including Vert and Horz and when using strictly 80 column mode. The 6502 was really a 2Mhz type since it had to do everything i half of one mhz normally. Since we used DRAM's we also had to line up their signals in a compatible way; making sure we had data hold time and yet enough time for RAS-precharge. The 02 does complete one bus operation per clock cycle, some instructions are multiple operations.
We made over a Billion dollars, whether obsolete or not.