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- INT 12 - MEMORY_SIZE_DET_I
- MEMORY SIZE DETERMINE
- This routine returns the amount of memory in the system as determined
- by the POST routine. (Up to 640K)
- Note that the system may not be able to use I/O memory unless there
- is a full complement of 512K bytes on the planar.
- INPUT -
- No registers
- The @MEMORY_SIZE variable is set during power in diagnostics
- according to the following assumptions :
-
- 1. Configuration record in non-volatile memory equals the actual
- memory size installed.
-
- 2. All installed memory is functional. If the memory test during
- POST indicates less, then this value becomes the default.
- If non-volatile memory is not valid (not initialized or battery
- failure) then actual memory determined becomes the default.
-
- 3. All memory from 0 to 640K must be contiguous.