Posted: July 18, 2012 at 4:38 pm
|July 2012 edition, Sensi SNES Article|
Take Sensible Soccer on the Super Nintendo for example,(SNES for those not in the know or have forgotten).Unlike the version we ported to the Sega Mega-drive, Nintendo’s 16bit wonder involved a bit more work than the relatively easy port to the Sega hardware. For a start the original Amiga code was written in 68000 assembler which also happens to be the same processor used in the Mega-drive.Converting a game is just a tad easier when both your original code and the target code can effectively run on the same processor.
Unfortunately the same can not be said when converting to a totally different microprocessor, say one that has its foot still in the 8bit era. You see the processor in the SNES was at it’s brass roots level a MOS 6502, yes ‘that’ very same family of processors used in the Commodore C64 and many other 8bit computers, consoles and arcade machines. Not that I have anything against the 6502 in fact I cut my coding teeth on it back in the day. Thankfully Nintendo opted to use the updated version developed by Western Design Center which has a wonderful assortment of extras over it’s older brother. What extras are these then? Well, extras like 16 bit registers, more instructions and and the ability to address up to 16 megabytes of memory which is somewhat greater than the 6502 and it’s comparatively puny 64k addressing range. Cool! (Thanks Wikipedia! come on you didn’t think I’d remember all that geek stuff? )
So what’s all that got to do with the price of fish? Well nothing but it does remind us that converting a game isn’t a just a case of converting the graphics, changing a few lines of code and hey presto you have a new target platform with which to publish your game on. No, it’s far more involved than that, even today with multi platform game engines like Unity or Corona which makes the whole process far easier there are still rules to follow but these falter in my opinion when compared to the technical work required doing it old skool!.
So anyway as I was saying it’s funny how things turn out isn’t it? I was going through some old graphics files recently when out of the blue I was contacted by Nintendo Gamer Magazine who invited me to comment on my memories of converting Sensible Soccer to the Super Nintendo. Well it took me a while to remember what we did but after after viewing a few old Amiga IFF files, drinking a large mug of tea (or three) those old memories soon resurfaced and before I knew it I’d written enough waffle to pad out a few paragraphs.
So if you want to know how this version of Sensi Soccer differs from that of the original , grab yourself a copy today! Nintendo Gamer July 2012.