Download: https://sourceforge.net/projects/ctrlr-utilities/
- Version 2.0
- 05/17/2021
Program for calculating Roland or YAMAHA Sysex check sums.
To Export as executable standalone:
- File » Export » Export restricted instance
2 thoughts on “Roland YAMAHA Checksum Calculator”
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lua function to calculate checksum from MemoryBlock()
function checkSumMb(m) -- Roland Checksum from MemoryBlock
local sum=0
local result=0
for i=0,m:getSize()-1 do
sum=sum+m:getByte(i)
end
local result=bit.band(sum,0x7f)
if result * 1 ~=0 then
result= 0x80-result
end
return result
end --function
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