Hi Vasile,

You can search for keywords in all JAL libraries I assume.

But swapping can be done simpler I think. For example.

var word crc_in
var byte crc_in_low at crc_in
var byte crc_in_high at crc_in + 1
var word crc_out
var byte crc_out_high at crc_out
var byte crc_out_low at crc_out + 1

crc_out_low = crc_in_low
crc_out_high = crc_in_high

Kind regards,

Rob


________________________________
Van: [email protected] <[email protected]> namens vsurducan 
<[email protected]>
Verzonden: woensdag 18 september 2024 12:55
Aan: [email protected] <[email protected]>
Onderwerp: [jallib] Re: searching for procedures in jal lib files

var byte LSB_crc, MSB_crc

procedure swap_LSB_MSB (word in crc, word out swapped_crc) is
-- When the CRC is placed into the message, its upper and lower bytes must be 
swapped crc_lo; crc_hi
   LSB_crc = byte (crc & 0x00ff)
   crc = crc >> 8
   MSB_crc = byte (crc)
   swapped_crc = 256*LSB_crc + MSB_crc
end procedure


Obviously the procedure in the  email below was wrong...not really sure about 
this one (from the compiler perspective)....:)

On Wed, Sep 18, 2024 at 12:28 PM vsurducan 
<[email protected]<mailto:[email protected]>> wrote:
I think this topic was previously discussed a long time ago...
How can I search for a specific procedure ( for example swapping bytes in a 
word) in order to find different types of implementation (for lower code 
length, etc)?
thx,

procedure swap_LSB_MSB (word in crc, word out swapped_crc) is
-- When the CRC is placed into the message, its upper and lower bytes must be 
swapped crc_lo; crc_hi
   LSB_crc = byte (crc & 0x00ff)
   MSB_crc = byte (crc & 0xff00)
   swapped_crc = 256*LSB_crc + MSB_crc
end procedure

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