The following environment variables control the run time virtual memory
		
		 
		   
			 - MFMP 
			 
 
 
			 - This must be set to 
				ON for assembler to execute. 
			 
 
 
			 - Example: 
				
MFMP=ON 
				
 
			  
 
		   
		   
			 - SVC370 
			 
 
 
			 - This switch is related to backward compatibility. It must always be set to MFI. 
			 
 
 
			 - Example: 
				
SVC370=MFI 
				
 
			  
 
		   
		   
			 - MEMSIZE=<LOW>,<HIGH> 
			 
 
 
			 - Maximum 370 linear address that assembler modules can address. A value of 
				0,7FFFFFFF addresses the bottom 2 gigabytes of 370 virtual memory 
			 
 
 
			 - Example: 
				
MEMSIZE=0,7FFFFFFF 
				
 
			  
 
		   
		   
			 - VM370 
			 
 
 
			 - Amount of memory, starting at absolute address 0, to be allocated for the use of 370 assembler modules to be loaded into. Default is 3 meg below the 16 meg address line. 
			 
 
 
			 - Example: 
				
VM370=3000 
				
 
			  
 
		   
		   
			 - AMODE370 
			 
 
 
			 - Tells the assembler emulator which addressing mode to initially start in when the first assembler module is called. 
			 
 
 
			 - Example: 
				
AMODE370=31