Showing changes from revision #1 to #2:
Added | Removed | Changed
Entry | |
---|---|
R0 | 2 |
Exit | |
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R0 | IOEB ASIC presence flag |
R1 | 82C710 presence flag |
R2 | LCD ASIC presence flag |
R3 | Low half of ID |
R4 | High half of ID |
The purpose of this call is to check for the presence of various chips, returning flags.
It also reads the unique machine ID if a suitable chip is fitted to the computer; if none is, an ID of zero is returned.
To When using this call to read just the machine ID, use it is recommended that programs first check with OS_ReadSysInfo 5 12 . to see if an extended machine ID is available.
If you only wish to read the old-style 64 bit machine ID, then OS_ReadSysInfo 5 can be used instead.