ADRHEXADRNAMEDescriptionOS
6$0006TRAMSZTemporary Register for RAM sizeboth

Temporary Register for RAM size; used during powerup sequence to test RAM availability. This value is then moved to RAMTOP, location 106 ($6A). Reads one when the BASIC or the A (left) cartridge is plugged in.

see also: RAMTOP, MEMTOP