Subject:
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Re: Spybot Studies: display an 8-bit value
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Newsgroups:
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lugnet.robotics.spybotics
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Date:
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Fri, 7 Nov 2003 19:45:03 GMT
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Viewed:
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5945 times
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In lugnet.robotics.spybotics, Brian B. Alano wrote:
> Now if I could only pass
> the parameter on the stack to a subroutine, I wouldn't have to
> inline all this code.... :)
>
> I know I've seen someone else do this already, but I can't find the link.
Mark Riley did this using MindScript but I don't recall having already seen the
equivalent in NQC.
http://news.lugnet.com/robotics/spybotics/?n=56
Rather than use a #define macro (speaking of which, I need to fix the syntax
highlighting of preprocessor macros to account for multiple lines) I would use a
function:
void SetLEDBinary2(const int &x)
{
SetLED(LED_MODE_ON, x);
SetLED(LED_MODE_YELLOW, (x >> 6) & 0x01);
// use SetLED rather than SetLight so that you can pass a variable
SetLED(LED_MODE_VLL, x & 0x80);
}
In NQC the resulting compiled code will be identical to what you get when using
a preprocessor macro (but it looks nicer, imho).
John Hansen
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Message has 1 Reply:
 | | Re: Spybot Studies: display an 8-bit value
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| (...) In case anyone was wondering (yeah, sure :-), this line in my original post: lediDisplay = (x & 0x17) ((x & 8) * 4) ((x & 32) / 4) rearranges the bits so that the lower 6 bits can easily be read left to right (while looking at the bot from the (...) (21 years ago, 7-Nov-03, to lugnet.robotics.spybotics, FTX)
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Message is in Reply To:
| | Spybot Studies: display an 8-bit value
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| I feel a little sheepish posting such simple code, but I needed to write this function anyway, and it's a legitimate illustration of a couple functions, which is the goal of "Spybot Studies" and this is a run-on sentence. /* led_8bit_display A (...) (21 years ago, 7-Nov-03, to lugnet.robotics.spybotics)
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