The Comparison Flags are contained within the processor COM and OVF flags two-digit field. This field is defined as:
|Comparison Low (COML) flag||1|
|Comparison High (COMH) flag||0|
The states of the Comparison Flags are:
|0||1||Greater or High|
|1||0||Less or Low|
The Comparison Flags will be stored in memory and reset by the Branch Communicate (OP = 30), Enter (OP = 31), Virtual Enter (OP = 35), and Hyper Call (OP = 62) instructions. They are also stored in memory and reset by the Interrupt and Hardware Call procedures.
The Comparison Flags are unconditionally restored from memory by the Return (OP = 63) and Virtual Branch Reinstate (OP = 93) instructions and conditionally restored from memory by the Exit (OP = 32) instruction.