The LOC instruction

Name:

LOC Expression

Specification:
@ ← Expression

Description:

Defines the new current location in memory. The assembler always places instructions and data in memory at the current location, incrementing the current location as needed. The symbol @ ("The location where we are at") can be used for the current location in an expression.

In user mode, the program has access to four segments in main memory:
SegmentSymbolStart addressUse
Text Segment   #0

Program and static data

Data SegmentData_Segment #2000000000000000

variable Data

Pool Segment Pool_Segment #4000000000000000  
Stack Segment Stack_Segment#6000000000000000