Search found 925 matches

by martyn_hill
Fri Jan 26, 2018 2:18 pm
Forum: Software & Programming
Topic: QL Graphics
Replies: 43
Views: 18708

Re: QL Graphics

"Devil's spanner polisher" - I love it! Never come across that term before (but fully understand its intent.) And yes, if an extreme end of a scan-line is contiguous FLASH, it must (?) follow that either the first FLASH toggle bit or the last toggle bit would necessarily be dropped. I wond...
by martyn_hill
Fri Jan 26, 2018 11:43 am
Forum: Software & Programming
Topic: QL Graphics
Replies: 43
Views: 18708

Re: QL Graphics

Hi again Per Coming back to your explicit check for '170' in the high-byte of the pixel-word: 420 IF b% = 170 THEN 430 m% = 8: EXIT pos What makes you sure that 4-consecutive pixels with GREEN component set but no FLASH (if Mode 8) or alternatively, 8 pixels with alternate GREEN bits set (Mode 4) sh...
by martyn_hill
Fri Jan 26, 2018 8:13 am
Forum: Software & Programming
Topic: Sections or includes in GST/Quanta Assembler
Replies: 9
Views: 3567

Re: Sections or includes in GST/Quanta Assembler

Thank you gentlemen!

That gives me what I need - and a timely reminder about the QMake approach!

I'll start to use this info over the weekend to re-org the files I've already started to get ready for the QL LAN Bridge Adapter project...

M.
by martyn_hill
Fri Jan 26, 2018 12:23 am
Forum: Software & Programming
Topic: Sections or includes in GST/Quanta Assembler
Replies: 9
Views: 3567

Re: Sections or includes in GST/Quanta Assembler

Thanks Tobias - that begins to make some sense to me.

You mention the linker control file (is that a '.ctx' file I've seen someplace?), so each assembler source file is listed there. Got it.

And is it the .ctx file (or whatever) that you then tell the assembler to go assemble?

M.
by martyn_hill
Thu Jan 25, 2018 10:52 pm
Forum: Software & Programming
Topic: Sections or includes in GST/Quanta Assembler
Replies: 9
Views: 3567

Sections or includes in GST/Quanta Assembler

Hi everyone Quick question regarding the correct use of sections and linking versus includes when using the GST or Quanta QMAC Assembler... If I want to keep assembler code segments of a project in different files, but am not interested in fixed addresses and/or linking per-se, is the 'section' dire...
by martyn_hill
Thu Jan 25, 2018 8:51 pm
Forum: Software & Programming
Topic: QL Graphics
Replies: 43
Views: 18708

Re: QL Graphics

Hi Per Nice first stab at the problem. Taking some of your questions: "Fewer, well-chosen but random, samples from the file?" I was thinking about this last night. I don't think that randomising which sub-set of pixels to test would enhance the accuracy over pre-selecting a fixed sub-set o...
by martyn_hill
Wed Jan 24, 2018 11:18 pm
Forum: Software & Programming
Topic: Expanding the range of QL Adventures
Replies: 107
Views: 60235

Re: Expanding the range of QL Adventures

Hi Georgeo and thank you for bringing Akalabeth to the QL! I haven't tried the game yet, but have been perusing the code. There are a couple of things that you might want to add to your 'issues list' for the beta version :-) a) Try replacing all those RETurns intended to terminate PROCedures with EN...
by martyn_hill
Wed Jan 24, 2018 6:08 pm
Forum: Software & Programming
Topic: QL Graphics
Replies: 43
Views: 18708

Re: QL Graphics

Hi again Per Not 100%, but given that almost zero.zero% of apps bother with HW FLASH, you could get a good indication by checking a few of the bits that hold the FLASH state toggle in MODE 8 versus GREEN in MODE 4. If you find ANY GREEN/FLASH bits set, there's a pretty good chance that the file hold...
by martyn_hill
Wed Jan 24, 2018 6:02 pm
Forum: Software & Programming
Topic: QL Graphics
Replies: 43
Views: 18708

Re: QL Graphics

Hi Per Just to add to Tobias' explanation "The original QL mode 8 layout "emulates" 512 pixels horizontal resolution in 256 real ones. ": Even in Mode 8, the OS addresses horizontal pixels as though there were 512 - any accesses to odd-numbered x-axis pixels in Mode 8 are rounded...
by martyn_hill
Wed Jan 24, 2018 4:34 pm
Forum: Software & Programming
Topic: Nested TRAP #3 I/O calls in SMSQ/E...
Replies: 4
Views: 2050

Re: Nested TRAP #3 I/O calls in SMSQ/E...

Thanks, Martin!

Time to try... I'll report back here at the other end of the weekend.

:-)