Started by andreas_g, February 22, 2023, 03:43:13 PM
#define P_C16_VIDEOMEM (SLOT_ID+0x06000000) /* COLOR_FB */
#define P_C16_VIDEOMEM (0x2c000000) /* COLOR_FB */
Quote from: andreas_g on February 26, 2023, 09:47:25 AMI guess memory locations changed from prototype to final hardware. I'm 90 % sure now that NeXTStep 2.0 won't boot on a real NeXTstation Color. Nevertheless it would be interesting to proof it.
Quote from: K-Town Computeum on February 27, 2023, 03:26:53 PMI have a color non-Turbo station in my collection and could test this. Where to download the NS 2.0 CDs?
Quote from: K-Town Computeum on February 28, 2023, 04:49:27 PMI've just tested it on my Color NextStation. It doesn't work. It hangs when it starts booting.
Quote from: cuby on February 28, 2023, 06:18:24 PMHm, your machine has 26 MB RAM? That's a strange amount...
Quote from: andreas_g on March 01, 2023, 12:07:18 AMQuoteHm, your machine has 26 MB RAM? That's a strange amount...The memory layout of the non-Turbo NeXTstation Color makes this possible: 3 * 8 + 2.
QuoteHm, your machine has 26 MB RAM? That's a strange amount...
Quote from: cuby on March 01, 2023, 12:57:20 AMBut now I'm wondering about a thing, since there was a discussion about versions of the Color station using the Turbo chipset but running at 25 MHz. Most pictures of the Color non-Turbo PCB have eight 72-pin SIMM slots (e.g. this one), but some show only four (like that one). However, pictures of the Color Turbo always seem to show four slots only.Now, are the Color non-Turbo machines with only four SIMM slots ones using the Turbo chipset clocked at 25 MHz, but the eight slot PCBs use the old chipset? What are the memory limits of the two different non-Turbo mainboards?