 | | Re: Sharing variables and using expressions (was Re: NQC 2.0 and some math questions
|
|
(...) I appreciate this -- that's what the "Not Quite" is all about. As long as you explain things well, I think this kind of compromise is the right way. (25 years ago, 20-Oct-99, to lugnet.robotics.rcx.nqc)
|
| |
| | Re: Sharing variables and using expressions (was Re: NQC 2.0 and some math questions
|
|
The optimization was intentional (and quite a lot of work, actually). I know it breaks with multiple tasks, but I was more concerned with keeping the variable pool from being cluttered with temporaries. With only 32 vars to use, its quite easy to (...) (25 years ago, 20-Oct-99, to lugnet.robotics.rcx.nqc)
|
| |
| | FW: RCX Firmware and SP
|
|
-----Original Message----- From: Sergey Udovenko [mailto:udovenko@bluewin.ch] Sent: Tuesday, October 19, 1999 5:56 PM To: Ralph Hempel Subject: Re: RCX Firmware and SP Hi Ralph, I'm just yet another hobbyist, so nothing is special about my plans. (...) (25 years ago, 19-Oct-99, to lugnet.robotics.rcx.pbforth)
|
| |
| | RE: additional pbforth questions
|
|
Hmm, this is the kind of message I should use for FAQ fodder... (...) You can run it either way. The original intent was to use the dumbest tool possible to interact with the RCX. For DOS this is Procomm Plus or some such tool, for Windows its (...) (25 years ago, 19-Oct-99, to lugnet.robotics.rcx.pbforth)
|
| |
| | additional pbforth questions
|
|
Does pbforth run under dos or windows on the PC? Does it use blocks or dos/windows file system on the PC? Does it use blocks in RAM on the RCX? If I program directly on the RCX can I upload the programs to the PC for further development? In using (...) (25 years ago, 19-Oct-99, to lugnet.robotics.rcx.pbforth)
|
| |
| | 0.2.0a patch
|
|
Hello, apparently I introduced a glitch when adding last-minute support for non-patched standard egcs. This and a broken symlink in the archive prevented dllback from compiling on the host. A patched version of legOS is available on (URL) for the (...) (25 years ago, 19-Oct-99, to lugnet.robotics.rcx.legos)
|
| |
| | RCX-enhanced egcs
|
|
Hello, I just posted the final RCX interrupt handling patch for egcs. There is no need for wrappers anymore. Interrupt handlers can be declared like this now: void handler() __attribute__((rcx_interrupt)); void handler() { // do stuff } For a leaf (...) (25 years ago, 19-Oct-99, to lugnet.robotics.rcx.legos)
|
| |
| | pbforth questions
|
|
My 15 year old son is into legos big time. He has asked for the Lego robot package. I developed in Forth many years ago and I am just getting back into it with Forth Inc.'s SwiftForth for Windows. I have enjoyed messing about with it but what I am (...) (25 years ago, 19-Oct-99, to lugnet.robotics.rcx.pbforth)
|
| |
| | Sharing variables and using expressions (was Re: NQC 2.0 and some math questions
|
|
I have discovered a somewhat non-intuitive feature of NQC (in my version, at least, which is pre-2.0) The statement: var = (20 * var) / 21; gets compiled into the following: MUL var, 20 ; var = var * 20 DIV var, 21 ; var = var / 21 rather than the (...) (25 years ago, 19-Oct-99, to lugnet.robotics.rcx.nqc)
|
| |
| | RE: RCX Firmware and SP
|
|
(...) Unfortunately, yes. The current version of pbFORTH allocates a 256 byte stack, but it's JUST above a 256 byte boundary. When you run the test code, everything works, but if your stack depth is around 12 and you run SENSOR_READ, it allocates (...) (25 years ago, 19-Oct-99, to lugnet.robotics.rcx.pbforth)
|
