Search found 4459 matches

by tricky
Fri Aug 14, 2020 8:01 pm
Forum: 8-bit acorn hardware
Topic: 6502 Assembly on BBC B, what do I need?
Replies: 27
Views: 1447

Re: 6502 Assembly on BBC B, what do I need?

I had a 6" B/W portable and that was fine in 80 columns on RF, no chance on a colour TV though. After a while I got an old Galaxian's monitor (I think from the screen burn) and used via RGB. The feedback is actually quicker using beebasm and an emulator, as it a large program is only a second to ass...
by tricky
Fri Aug 14, 2020 3:05 pm
Forum: development tools
Topic: BeebAsm
Replies: 117
Views: 13061

Re: BeebAsm

Thanks, I hadn't noticed that code, I'll "fix" mine locally. I guess the problem is when you have double sided discs that say that they are 40/80 tracks but the file size is smaller. I wonder if it also checks that the catalogue is OK on the supposed second disc. For me, if the disc isn't twice the ...
by tricky
Fri Aug 14, 2020 3:00 pm
Forum: 8-bit acorn hardware
Topic: New to physical BBC retrocomputing
Replies: 4
Views: 137

Re: New to physical BBC retrocomputing

Welcome.
I can't find it now, but this was mentioned in a recent thread.
Most of the beebs that I have come across, even filthy still feel better than any of the usual 8bits.
This isn't a Master Compact with its membrane keyboard is it?
by tricky
Fri Aug 14, 2020 1:28 pm
Forum: development tools
Topic: Fonts for BBC Micro Games
Replies: 5
Views: 142

Re: Fonts for BBC Micro Games

I didn't give them a proper look, but now that I have, I love them. =D> (The link ending /- doesn't work). I have some font routines that I wrote and were subsequently used in commercial games for PC, 360 and PS3. I didn't design any fonts as that requires artistic talent that can't be expressed in ...
by tricky
Fri Aug 14, 2020 1:08 pm
Forum: 8-bit acorn emulators
Topic: Games turn off interlace mode
Replies: 23
Views: 3627

Re: Games turn off interlace mode

Is it possible on the beeb to know which field is being displayed from software? Just came across this old thread. It is possible to get synced up with whether you're in the odd or even frame, at least on the beeb's Hitachi 6845. There are probably a few different workable ways. Couple of ideas: 1)...
by tricky
Thu Aug 13, 2020 8:22 pm
Forum: development tools
Topic: Fonts for BBC Micro Games
Replies: 5
Views: 142

Re: Fonts for BBC Micro Games

Have you seen JGH's fonts and text utilities?
by tricky
Thu Aug 13, 2020 7:50 am
Forum: development tools
Topic: BeebAsm
Replies: 117
Views: 13061

Re: BeebAsm

There is also something a little strange that tokenising BASIC files causes beebem to sometimes complain about the disc image (.SSD) is not valid - they work anyway. I couldn't track down what was the cause, because I I was doing was adding DATA statements.
by tricky
Wed Aug 12, 2020 5:06 pm
Forum: 8-bit acorn hardware
Topic: Gotek help?
Replies: 5
Views: 119

Re: Gotek help?

What sort of cable is it using?
by tricky
Wed Aug 12, 2020 7:04 am
Forum: new projects in development: games
Topic: Windows -> BBC Workflow and Tools
Replies: 6
Views: 447

Re: Windows -> BBC Workflow and Tools

Looking good and sounds like you are really enjoying making it.
by tricky
Tue Aug 11, 2020 10:07 am
Forum: 8-bit acorn software: other
Topic: How PROC and FN references are built in BASIC
Replies: 9
Views: 228

Re: How PROC and FN references are built in BASIC

There was a bbug or maybe A&B or similar article bitd about calling them by name - I don't know how compatible that would be for non-beeb versions of basic though, being non-supported and all.
by tricky
Tue Aug 11, 2020 10:04 am
Forum: introduce yourself
Topic: Hello from Port Macquarie, Australia
Replies: 8
Views: 152

Re: Hello from Port Macquarie, Australia

Welcome, you may have just doubled the known beeb population in Australia :) If there is a market, I would keep one working drive and sell the rest for GOTEKs on machines that have floppy interfaces. Saying that, I have about a dozen assorted drives so I obviously wouldn't! The MMC interfaces are gr...
by tricky
Mon Aug 10, 2020 10:29 pm
Forum: introduce yourself
Topic: Introduction
Replies: 13
Views: 329

Re: Introduction

Welcome, nice history, sorry about your dad.
by tricky
Mon Aug 10, 2020 1:23 pm
Forum: programming
Topic: Load half a mode 7 screen
Replies: 60
Views: 791

Re: Load half a mode 7 screen

Ahh sorry I don't know if that was my mistake from the advice Tricky gave ( with the memory ). Sorry, I was just trying to make the *SAVE and *LOAD as simple as possible. One thought, do you like authoring these in MODE 7 or would you prefer to draw them in another way. I think I know the answer (M...
by tricky
Mon Aug 10, 2020 1:14 pm
Forum: for sale / freebies
Topic: Box of Stuff
Replies: 17
Views: 721

Re: Box of Stuff

It was great to meet Pete and his wife on Saturday and we had a good chat. It was a bit warm for standing in the sun, and my daughter's birthday. I've had a look through the "box of stuff". There are quite a lot of discs and tapes, but unfortunately I can't currently read either as I have no working...
by tricky
Sun Aug 09, 2020 8:59 pm
Forum: programming
Topic: Load half a mode 7 screen
Replies: 60
Views: 791

Re: Load half a mode 7 screen

Sorry, I did not note that there first time I saw the post, but had forgotten when I came back and read posts about *load and thanks things.
by tricky
Sun Aug 09, 2020 10:54 am
Forum: programming
Topic: Load half a mode 7 screen
Replies: 60
Views: 791

Re: Load half a mode 7 screen

I don't want to peak your interest too much, but it is basically a for loop going from 240 down to 1 and copying two bytes per iteration. For x=239to0 step-1 X?&7e08=x?&7008 X?&7ef8=x?&70f8 Next Now I have written it like this, I can see that there is a bug, which can be fixed by removing the INX ab...
by tricky
Sun Aug 09, 2020 10:45 am
Forum: programming
Topic: Tools for analysing files
Replies: 7
Views: 237

Re: Tools for analysing files

*INFO and if the run address is &8023 or &801F, it is probably BASIC.
MODE 0 *LOAD 3000 look for graphics, patterns often means data or noise is usually code.
by tricky
Sun Aug 09, 2020 10:40 am
Forum: programming
Topic: Load half a mode 7 screen
Replies: 60
Views: 791

Re: Load half a mode 7 screen

Yep ;)
Formatting is a pain and auto-correct even worse :lol:

PS Just too lazy to go upstairs! :lol:
by tricky
Sun Aug 09, 2020 9:33 am
Forum: programming
Topic: Load half a mode 7 screen
Replies: 60
Views: 791

Re: Load half a mode 7 screen

You might be better just keeping the bottom halves in memory and copying them in assembler. Something like: ; copy 12 lines from &XX00 to the bottom 12 lines of the screen .copy_lower ; use X%=source page e.g. &70 for &7000 and &7100 : JSR copy_lower stx pg_lo+2 inx stx pg_hi+2 ldx #40*6 ; quarter s...
by tricky
Sat Aug 08, 2020 9:50 pm
Forum: new projects in development: games
Topic: COSMOS CHRONICLES
Replies: 28
Views: 1350

Re: COSMOS CHRONICLES

Good luck, I'm interested to see how this turns out.
by tricky
Sat Aug 08, 2020 9:21 am
Forum: introduce yourself
Topic: Hi from Montreal (via Bexhill)
Replies: 10
Views: 264

Re: Hi from Montreal (via Bexhill)

Welcome,
there is an ongoing preservation project and I'm sure someone with experience of retrieving discs will be along soon.
by tricky
Sat Aug 08, 2020 9:18 am
Forum: miscellaneous new bbc and electron games
Topic: New RPG for BBC model B
Replies: 32
Views: 857

Re: New RPG for BBC model B

GOTEK is a hardware floppy drive emulator, it goes through the usual disc interface, so the beeb doesn't know any difference between it and a "real" floppy. FlashFloppy is the opensource firmware that most beeb people use and it supports .DSD as well as .SSD. If you have a .DSD that doesn't work, bu...
by tricky
Sat Aug 08, 2020 9:14 am
Forum: 8-bit acorn software: other
Topic: A new MENU system for MMC/Gotek
Replies: 110
Views: 11891

Re: A new MENU system for MMC/Gotek

I do have a half finished GUI for it that is half MMB/folder explorer for .SSD/.DSDs and half selection tool for building the menu.
I abandoned it as there are good .SSD/.DSD file explorers out there and EXCEL/your favourite spreadsheet is far better at editing .CSVs.
by tricky
Sat Aug 08, 2020 9:08 am
Forum: acorn & bbc micro user group (abug) events
Topic: Weeknight 'Virtual' Dev session #0, Thursday 6th August 2020, 7pm - 10pm
Replies: 36
Views: 864

Re: Weeknight 'Virtual' Dev session #0, Thursday 6th August 2020, 7pm - 10pm

I was also really enjoying it, sorry I had to go, I've been getting times when I just start to fall asleep. ... Yes, it was really enjoyable. It ended just before 1am ... we moved on to talking about some of the unfinished / unreleased RetroSoftware games. http://www.retrosoftware.co.uk/wiki/index.p...
by tricky
Fri Aug 07, 2020 7:51 am
Forum: off-topic
Topic: Anyone else suffer from bent finger(s)?
Replies: 6
Views: 295

Re: Anyone else suffer from bent finger(s)?

I have psoriatic arthritis which comes with pain and swollen joints, but the end result is a permanent bend in the same finger, but joint nearest the tip. This did throw off my already poor typing, but I nearly got used to it after a few months.
by tricky
Fri Aug 07, 2020 7:46 am
Forum: introduce yourself
Topic: Hello from Poland
Replies: 6
Views: 157

Re: Hello from Poland

Welcome, was it speccy clones over there?
by tricky
Thu Aug 06, 2020 9:52 pm
Forum: new projects in development: games
Topic: Windows -> BBC Workflow and Tools
Replies: 6
Views: 447

Re: Windows -> BBC Workflow and Tools

Sounds like a nicely featured system that would be a great way to get into games programming on the beeb. Maybe a simple example might make it easier to understand for someone who doesn't already have a cross assembler setup. Personally I use Visual Studio + a .bat file + beebasm and my custom conve...
by tricky
Thu Aug 06, 2020 3:26 pm
Forum: programming
Topic: Mode 7 with screen RAM at &3C00 on the model B
Replies: 7
Views: 327

Re: Mode 7 with screen RAM at &3C00 on the model B

Looks like the 6845 sets &2800 for both, but I might not have set Model A mode correctly.

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