The Sinclair QL Forum

Pr0f wrote: The original coprocessor architecture of the 68K was supposed to be extensible, but I only recollect FPU and MMU being made availabe, were there any others??

There were at least the 68440/450 DMA controllers, 68681 DUART, 68901 MPU and 68230 PIT

Tobias

MacOS is written in a high-level language, most probably C. Porting it from PPC to x86 involved "only" recompiling it on the new platform and "fixing a few quirks". Still, it took a company like Apple about a year. SMSQ/E is written in 68k assembly completely. Porting to a new pl...

Dave, retro computing stuff is worth what people are willing to pay and price depends a bit on how urgently people want stuff - An SGC is one of the most urgently wanted pieces of QL Hardware and is thus worth nearly the price when it was new to some people. Last few eBay auctions I have seen were b...

For me this looks like a bad contact somewhere (memory ?). I had a similar problem, it went away when I moved the SGC DRAM chips a little inside their sockets. Same here. The RAM chips on the SGC seem to suffer from oxidation of the pins in the sockets over time. Wiggling them very carefully helps ...

Giorgio,

the simplest way to achieve that is to create a bitmap of that two lines of text and put the bitmap in the menu.

There are probably better ways to do that, though.

Tobias

Here's another thread where I described how to create a Prospero Pascal programming environment for modern SMSQ/E computers using C68 make:

http://qlforum.co.uk/viewtopic.php?f=3&t=1838

Tobias

Apparently, I never posted the promised makefile: # # Extended ProPascal Library # # # Assumptions: # DATA_USE points to Device/Directory holding the Sources # LINK_TARGET environment variable holds the name of the binary to create # # Program filenames # PASC = win1_Propascal_pas NOQNS= win1_propas...

Are C1 PASCAL and Metacomco Pascal (with the ROM dongle) comparable? From a language view, yes - All tree implement a somewhat standard Pascal with similar language features, although the QL-specific implementations differ a bit. The main difference is that C1 Pascal is not what I would call a true...

Dilwyn, C1 Pascal wants a 100% identical memory layout as that of an original QL - Otherwise, it won't run. It is also not compatible with the pointer interface - It asks for input in the menu window but doesn't display a cursor, so you can't <CTRL>-C into it. I once tried to patch it but decided it...

If it's not too large, most probably yes.