Search found 23 matches

by John
Sat Jul 18, 2020 4:21 pm
Forum: MSX & MSX2 Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the MSX1!
Replies: 22
Views: 6041

Re: Video: Lesson P31 - Hardware Sprites on the MSX1!

The problem I am having for completing a game is making Arkos Tracker 2 work properly I mention the problem at the page Video: Lesson P35 - Playing Digital Sound with WAV on the AY! I guess the issue is CBIOS differs from the real MSX 1 BIOS in a way that makes Arkos tracker 2 fail on a real MSX 1 (...
by John
Fri Jul 17, 2020 11:46 am
Forum: MSX & MSX2 Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the MSX1!
Replies: 22
Views: 6041

Re: Video: Lesson P31 - Hardware Sprites on the MSX1!

"Unless you have some clever ideas to exploit this (like objects that move with the screen - staying in their 3rd)" I have though about this again. I do not think you need clever ideas to do vertical scrolling if that is what you meant in your video lesson P52 (https://youtu.be/pobGYc2iPfE) you ask ...
by John
Wed Jul 15, 2020 1:57 pm
Forum: MSX & MSX2 Assembly Programming
Topic: Video: Lesson P10 - Tilemap graphics on the MSX1
Replies: 5
Views: 3843

Bug in Akusprite conversion to MSX tiles?

Hello Keith, I think there may be a bug in akusprite. So I have a 16x16 BMP test image (imagetoconverttomsxtiles.bmp in the zip file attached) to convert to MSX 8 by 8 pixel tiles,with 8 bytes in a tile to demonstrate the problem; thes test image is also shown as a png image in this message. The pro...
by John
Tue Jul 14, 2020 6:22 pm
Forum: MSX & MSX2 Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the MSX1!
Replies: 22
Views: 6041

Re: Video: Lesson P31 - Hardware Sprites on the MSX1!

"If you can't keep your program below 16k, I think one way or another you're going to have to learn about bank switching." Now I understand how to do bank switching and hence I am paging in the required 16K memory to show the screen. So I can now show the desired background image using all three til...
by John
Tue Jul 07, 2020 9:36 am
Forum: MSX & MSX2 Assembly Programming
Topic: Video: Lesson P18 - Making Sound with the AY
Replies: 2
Views: 2908

Re: Video: Lesson P18 - Making Sound with the AY-Bug in Chibisound?

Hello Keith, This question is regarding your Chibisound described at https://www.chibiakumas.com/z80/platform2.php for the MSX 1 you describe loading the mixer register,which is register 7, with the value --NNNTTT. Don't you need to set bit 7 to 1 and bit 6 to 0 when setting the mixer register (regi...
by John
Mon Jul 06, 2020 4:50 am
Forum: MSX & MSX2 Assembly Programming
Topic: Video: Lesson P5 - Bitmap graphics on the TI-83 and MSX
Replies: 4
Views: 2982

Re: Video: Lesson P5 - Bitmap graphics on the TI-83 and MSX

A game entry into msx-dev twenty has a 64x48 screen 3 game and it looks great
by John
Sun Jul 05, 2020 4:34 pm
Forum: MSX & MSX2 Assembly Programming
Topic: Video: Lesson P5 - Bitmap graphics on the TI-83 and MSX
Replies: 4
Views: 2982

Re: Video: Lesson P5 - Bitmap graphics on the TI-83 and MSX

Yeah, screen 3 is 64 columns by 48; and in addition in can still display some high resolution using the 32 sprites in screen 3. Because it does not use tiles it makes it easier (and uses less memory) to program some type of games in 16 colours such as 3D games (lacking on the MSX-1) or pseudo 3D gam...
by John
Sat Jul 04, 2020 4:48 am
Forum: MSX & MSX2 Assembly Programming
Topic: Video: Lesson P5 - Bitmap graphics on the TI-83 and MSX
Replies: 4
Views: 2982

Re: Video: Lesson P5 - Bitmap graphics on the TI-83 and MSX

Hello Keith, According to https://www.msx.org/wiki/SCREEN screen 3 is the only true bitmap mode (screen 1 and 2 simulate bitmap modes with tiles) for the MSX 1. Do you show anywhere how to use screen 3 MSX? I am looking how to plot a pixel,with a chosen colour, in screen 3 using assembly. Of course ...
by John
Thu Jun 25, 2020 10:45 pm
Forum: MSX & MSX2 Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the MSX1!
Replies: 22
Views: 6041

Re: Video: Lesson P31 - Hardware Sprites on the MSX1!

Hello Keith, I recall I read it somewhere but don't recall where as it was so long ago. If I can remember the reference I will let you know. Early 1980s home computers , for example, like the MSX and ZX spectrum and others a main application for them computers was text applications (e.g. business ap...
by John
Wed Jun 24, 2020 8:39 pm
Forum: MSX & MSX2 Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the MSX1!
Replies: 22
Views: 6041

Re: Video: Lesson P31 - Hardware Sprites on the MSX1!

Hello Keith, I don not understand why you say words that mean you need to use a buffer for MSX-1 scrolling up an down (vertically) and/or there is no hardware scrolling on MSX-1 machines in your recent video Lesson P59 - Hardware scrolling on the MSX 1/2/2+ at https://www.youtube.com/watch?v=-vKt68T...

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