New firmware for the Swissmicros DM15L

[Johnp_g]

Excellent!

The H.MS/HR and FRAC bugs are gone, as far as I can tell.

The R/S problem is now absent, I can use R/S to stop the same benchmark prog that I was testing previously after 61 seconds without the calculator turning off.

Speed.... wow!

The HP Museum benchmark tests are SUBSTANTIALLY faster now - faster even than the DM42 and DM32!

The stock DM15L at 48MHz does 676 loops of the "math" benchmark in 60 seconds

The DM42 does 24,701
The DM32 does 46,265
Your previous firmware on the 15L did 1,346

The new firmware does 68,791

https://www.gm4slv.org.uk/dokuwiki/doku....ng#results

I see a new BUG though :-(

Previously I was testing for the cube root of negative numbers, such as -8

8 CHS ENTER
3 1/x
y^x

and the answer would be 1.000 + 1.732i (or in polar 2 <60 )

Now with the latest firmware the result is : NAN

The same for any other negative number raised to 1/3 power - when previously it gave the correct "1st quadrant" complex result.

Otherwise, it's a great step forward.

The more I use it, the less I like having to terminate STO and RCL with ENTER, though!

Cheers,

John