Post by thread:[SX] SXBASIC good for video work?

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, cbmeeks wrote:I'm pretty sure Bean used it for video and I've used it a little on PICs. But what is the general opinion on using BASIC for a video kernel driven by an SX? Or should things like that be kept to pure asm?

Thanks cbmeeks ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=90584 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Coriolis wrote:The prob with SX/B for video, is the signals need to be deterministic (they need to happen at an exact time). That doesn't mean it can't be done, but you'll have to compile the SX/B into asm and do your cycle counting that way, many people (myself included) prefer to do the cycle counting in the coding step, not as a later step then go back and cut or pad cycles.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, KenLem wrote:cbmeeks - I'm not sure as I haven't tried it but I think it's worth trying. I agree with Paul that you will end up needing to go to ASM to get the best performance but I bet you can get something running with just SX/B. I did something similar with an ATMega and C and was surpized at how good the results were. I did end up going to ASM to increase the resolution but since I was learning about video, it was a nice natural step for me.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, LostboY wrote:Wait for Bean to weigh in on this. We had a great discussion yesterday about SX/B. Jon Williams would probably have some insight as to this as well.

SX/B is getting more useful/powerful by the day ;) Ryan ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=90584#m90715 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)

In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote:Black and white video can be done without too much problem. Color video is quite a bit more challenging. You can download the source code for the SX video module from www.sxvm.com Bean.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, cbmeeks wrote:Thanks. I've done both color and B/W in ASM and will probably just stick to ASM but I was wondering the general opion on BASIC and video.

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In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Jon Williams wrote:Remember the SX/B compiles pretty tight with many statements going 1-for-1 (not couning complex keywords like PAUSE, SEROUT, etc) and you can add ASM...ENDASM blocks wherever you need.

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