M1 manual typo? Can anyone explain?

[ubuntourist]

I am reverse-engineering a bunnch of Korg M1 memory dumps, and making good progress... mostly... I think... However, occasionally the file size is not what I expect it to be.

On page 127 of the Korg M1 Owners Manual, Note 10-3 appears to contradict itself. It says:

Code: Select all

10-3: Sequence Data Dump Format
      [Sequence 1st Data (4 byte)], ..., [Sequence nth Data]
         
      n: Seq. Data Size = 0 ~ 4400 (Mem. Alloc = L. Prog.)
                        = 0 ~ 7700 (Mem. Alloc = L. Prog., Seq. Card)
                        = 0 ~ 4200 (Prog, Combi, Seq. Card)

My question: If the data size is something like 3000, is it between 0 and 4400, in which casse the first rule applies, or is it between 0 and 4200, in which case the third rule applies. How do I interpret that?

Or, is it, as I speculate, a typo and either 4400 or 4200 is incorrect? And, if that's the case, what's the correct value (and which is incorrect)?

P.S. I have no access to a Korg M1. Only the memory dumps.

[voip]

On the M1, the choices displayed for memory allocation in Global are:

for the internal memory:

100PROG/100COMBI/4400SEQ
50PROG/50COMBI/7700SEQ

and for a card format, there are three choices:

100PROG/100COMBI
50PROG/50COMBI/4200SEQ
7700STEP SEQUENCE

So the figures do seem to square with those in the MIDI Implementation. The available memory in the memory card and in the M1's internal memory are different.
.

[ubuntourist]

On the M1, the choices displayed for memory allocation in Global are:

for the internal memory:

100PROG/100COMBI/4400SEQ
50PROG/50COMBI/7700SEQ

and for a card format, there are three choices:

100PROG/100COMBI
50PROG/50COMBI/4200SEQ
7700STEP SEQUENCE

So the figures do seem to square with those in the MIDI Implementation. The available memory in the memory card and in the M1's internal memory are different.
.

Ah! So I was interpreting it backwards, then. I was reading it as:

• "If the size is between X and Y, then the configuration is Z."

You've explained, if I understand correctly that the correct interpretation is:

• "If the configuration is Z, then the size will be between X and Y."

[voip]

Memory dumps on the M1 appear to be from the M1's internal memory only. There doesn't seem to be an option to dump data direct from memory card, so that constrains the number of possible configurations to two.

According to the M1 Owner's Manual, the size of the SysEx Sequencer data can very quite a bit, and will depend on the number of sequencer steps. It will be 2kB to 22kB, if the M1 memory has been configured for 100Prog/100Combi/4400Seq, and 2kB to 37kB, if the M1 configuration is for 50Prog/50Combi/7700Seq.

.