Commander X16

Will the interrupt not trigger on a 65816 while in native mode? Interrupts can occur in either native 65C816 mode or in 6502 emulation mode. There are separate interrupt vectors for each mode. Looking at the CX16 KERNAL source code, the native mode interrupt handlers just switch to emulation mode a...

Will you be able to map the ROM completely out for 16MB of RAM (minus IO, of course)? If so you could completely replace the ROMs with a 16bit OS. I think I plan on taking a crack at writing on that is similar to AmigaOS with a GUI and preemptive multitasking. The first 64k is mostly the same as th...

As for a 65816 BASIC - perhaps not, just that's a difference we're talking about: intro text describe the X16 as a "boot to BASIC system", but now it has to be explained "unless, blah blah" and technical thought and development has to be spent on supporting these alternative mod...

I think it's a reasonable approach for the CX16GS. One could imagine an alternate history where an in-between machine still using the 65C02 could have done the RAM-in-place-of-ROM banks trick to add more memory. And then if the CX16GS were the third system, it would have to keep that in place even w...

Will modifications to Gen-1 boards be offered to have flat address space and more than 2MB RAM? We don't know, yet. It's possible to create a CPU carrier board that has a 32MB memory module on board, but it's also almost certain that this board's function will differ slightly from the GS. Also, wit...

why focus on excellent 6502 software, when the 65816 version is (probably) going be more "wow"? The 65C816 isn't all that different from a 65C02. 16-bit A/X/Y registers, yes, but the 8-bit data bus means there's not that much of a speed difference. The biggest wins are the relocatable dir...

How about a C compiler? CC65 has limited support for 65816. Calypsi has pretty good support and already has profiles for the Foenix256. Should be a pretty short lift to get CX16GS support into that. Finally it is possible to write relocatable code on the 65816. I don't think Calypsi does that. Does...

65816...no "c". Same thing. WDC has used the two names interchangeably over the years, although the actual chips have always been labeled W65C816 (or W6SC816S for the newer fully static version they've been selling the last 25 years or so). As far as I know the other manufacturers have al...

There really needs to be a single straightforward page on the main X16 site that just provides comprehensive instructions on how to update, with a single download containing all needed files (and an another copy of the instructions). There should be no need for anyone to dig through the forum or tra...

I have the Apple IIGS port (which is in turn a port of the SNES version, both were done by the amazing Becky Heineman) and took a look at it, but it just has one giant file called OOTWSOUND (which takes up all of the second disk, LOL) which has no data fork, only a resource fork containing 85 items ...