Search found 40 matches

by John
Wed Jun 16, 2021 12:26 am
Forum: Master System & GameGear Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear
Replies: 10
Views: 8829

Re: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear

"You're clearly a competent programmer, with your own programming style, and that's great, " I would classify myself as a beginner assembly language programmer (a new hobby for me);nobody ever told me before I was a competent programmer and had my own style. but I'm not sure why you keep a...
by John
Tue Jun 15, 2021 12:41 pm
Forum: Master System & GameGear Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear
Replies: 10
Views: 8829

Re: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear

"How to port any game to any system in the entire world in 10 words" Alter the game so it works on the new system The joke aside, seriously Keith, the 37 word explanation I gave in my answer does lead to a solid way to make an MSX1 to SMS conversion;in my mind it does give a way to get fr...
by John
Tue Jun 15, 2021 9:19 am
Forum: Master System & GameGear Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear
Replies: 10
Views: 8829

Re: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear

The above describes in 37 words how to convert an MSX1 game to Sega master system
by John
Tue Jun 15, 2021 9:14 am
Forum: Master System & GameGear Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear
Replies: 10
Views: 8829

Re: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear

Step One. Write MSX1 ROM game from scratch so it is compatible with the MSX to SMS loader of choice,
Step Two. Add the MSX to SMS loader to your MSX ROM to make finished SMS game.
by John
Tue Jun 15, 2021 9:14 am
Forum: Master System & GameGear Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear
Replies: 10
Views: 8829

Re: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear

I had a look at the MSX1 to SMS links above. "If you think this can be covered in 100 words, then please feel free to post them, as I'm sure others will be interested to read your advice." so here is my first 100 word or less method description in the separate message below (I've got anoth...
by John
Sun Jun 13, 2021 11:06 am
Forum: Master System & GameGear Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear
Replies: 10
Views: 8829

Re: Video: Lesson P31 - Hardware Sprites on the Master System / Game Gear

You are mentioning MSX1 sprites and SMS (sega master system) sprites in same video. From a hardware perspective the SMS VDP has a backward compatible mode with the MSX VDP and the sound chips are similar. I know how to program MSX1 . I want to start programming SMS, by converting my 8K RAM MSX1 game...
by John
Sat Jun 12, 2021 10:05 pm
Forum: Genesis / Megadrive Programming
Topic: Lesson P27 - Hardware Sprites on the Genesis / Megadrive
Replies: 2
Views: 6754

Re: Lesson P27 - Hardware Sprites on the Genesis / Megadrive

Hello Keith, Are you making a version of Chibiakumas game for Megadrive,master system/Game gear,NES,game boy or SNES?
by John
Mon May 31, 2021 3:27 am
Forum: MSX & MSX2 Assembly Programming
Topic: Video: Lesson P31 - Hardware Sprites on the MSX1!
Replies: 24
Views: 19844

Re: Video: Lesson P31 - Hardware Sprites on the MSX1! . Sprites in Dynamite Go! Go!.

Hi Keith,

There is a new MSX1 bullet hell game -Dynamite Go!Go!.

https://www.youtube.com/watch?v=Sl1aauVxmYM

How do you think it get so many large and colourful multiplexed sprite on the screen with out any flickering? Does anyone know what trick it is using? It's an impressive effect.
by John
Thu Feb 25, 2021 11:00 am
Forum: Other Z80 Systems
Topic: BBC Bridge Companion
Replies: 4
Views: 4892

Re: BBC Bridge Companion

"There somehow seems to be a near endless supply of these retro systems!" "I can't say it's something I'm planning to cover at this time, my next 'goal' is to cover MIPS on N64 and PSX" N64 can be programmed with C e.g. see https://retrocomputing.stackexchange.com/questions/606/w...
by John
Thu Feb 25, 2021 1:45 am
Forum: Other Z80 Systems
Topic: BBC Bridge Companion
Replies: 4
Views: 4892

Re: BBC Bridge Companion

Yes, the VDP is the functionally exactly the same one as in MSX1. here is a picture of the inside of it https://upload.wikimedia.org/wikipedia/commons/1/1a/BBC-bridge-companion-pcb.jpg as you can see it has a TMS9129NL which is the same one as in VG 8020 MSX1 machine. I don't know about it sound. Th...

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