Post Created date
Why PROGMEM attribute ignored?
Inside a function, ESP_CMDS is auto.
Friday, 12 July 2019 - 16:05
GCC Preprocessor Capabilitiy?
apcountryman wrote:Namely, avr-libc's math.h does not define exp() inline yet somehow it was still able to use it in a constexpr context. If I try to do something similar with a...
Monday, 1 July 2019 - 21:45
double/float questions
christop wrote:It very well may be, but it can still be computed close to the exact value (Cliff's example in post #10 shows it being computed correctly, and post #12 actually...
Sunday, 30 June 2019 - 23:14
double/float questions
christop wrote:skeeve wrote: christop wrote:f3 is exactly 0. The value 1.0 is rounded to 0 when it's subtracted from a much larger value (__FLT_MAX__), so that f1 == f2.IEEE'...
Sunday, 30 June 2019 - 23:01
double/float questions
floats represent numbers, not ranges, so sin(FLT_MAX) is meaningful, if not terribly useful. crlibm can compute sines of large doubles. It uses multiprecision arithmetic to...
Friday, 28 June 2019 - 16:42
double/float questions
christop wrote:f3 is exactly 0. The value 1.0 is rounded to 0 when it's subtracted from a much larger value (__FLT_MAX__), so that f1 == f2.IEEE's implicit abstract machine...
Friday, 28 June 2019 - 16:40
software interrupts
All a "software interrupt" will get you is to bypass the caller-side overhead. It will get you the ISR overhead. Some registers will be saved and restored by both ISRs. Replacing...
Tuesday, 18 June 2019 - 14:35
can I ignore the following warning
My recollection is that unsigned char may alias any object. If char is unsigned, I expect the rule applies to char. That said, char should be reserved for text. The only exception...
Friday, 14 June 2019 - 00:31
Well, so much for micropython
'Tis my understanding that a lot of Linux's use Python 2 for installation and other admin stuff. At one time, before Python 3, I think Windows used Python.  Not sure.
Friday, 14 June 2019 - 00:21
Printing variables from RAM with printf_P
Just make the bootloader know that the last two bytes are the CRC, regardless of what went before.
Monday, 10 June 2019 - 22:44
making a UART generic library adapt MCU differences
Note that using the UART names involves token-pasting, so the user-interface would consist of macros.   An unused macro may contain anything. An unused static function needs...
Friday, 31 May 2019 - 15:46
making a UART generic library adapt MCU differences
jgmdesign wrote:I googled the site, and did a site search before I realised that skeeves clue should read:   skeeve and portbits.h Add the 's' to the end of portbit  ...
Friday, 31 May 2019 - 15:42

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