The Sinclair QL Forum

Hi all. I am looking for what the above details. Be it string manipulations, graphics algo 2D or 3D, as long as it is very well commented. I am a newbie to the 68000 assembly language, and let's be frank, I will save a lot of time to be familiar with this CPU with some very well commented source co...

In S*BASIC, A6 points to the start of the data area of the S*BASIC job, not the QDOS/SMS system variables. If A1 is $100, then (A6,A1.L) points to offset $100 in S*BASICs data area (which is usually the start of the buffer, which explains everything). regards, Jan. That's exactly right - but (and t...

As I said, what you seem to assume as a load address (a1+a6) - Must be wrong. That is not a valid address for a load.

Tobias

Strictly speaking the ROM is copied to the RAM and occupies the same address space it would have done in a standard QL, so the vectors could all still be valid... Well, directly after the copy the vectors still point to the same addresses in copied code as in ROM - But we don't want a 100% copy - a...

Hmmm, where to start? The QL has, unlike the other Sinclair computers, no fixed address in memory for the BASIC program, it has, in fact, not even a fixed space where the BASIC interpreter runs. The interpreter is one of many jobs that float about the QL's memory. Unlike the other jobs, it can even ...

I have those downloaded, will have to have a peek at them. I am guessing that the GC/SGC still respect the trap and vector addresses from the ROM's, otherwise things like the I2C on the Minerva wouldn't work. No, they obviously can't - They replace the complete ROM with RAM and use their own interr...

The best information on that can be had from the SMSQ/E sources - SMSQ/E does pretty much the same thing on a GC/SGC.

Tobias

No problem - I could easily design sprites that look just as weird in high-color modes

Tobias

Dilwyn has some of the C68 manuals on his homepage as e-book and pdf here:

http://www.dilwyn.me.uk/docs/ebooks/index.html

Tobias

Simply increase the stack space of your program by placing an
declaration somewhere in your program (to set the stack to 16k, for example) and you're done.

Tobias