Hscr:This is the amount of memory that will be allocated for the screen on a system reset|MIt is not normally necessary to set this value; the Window Manager will override it in setting the configured screen mode
Hheap:This is the amount of memory to be left free in the system heap after system reset|MIt is not normally necessary to set this value.
Hmod:This is the amount of memory that will be left free in the module area (RMA) after the operating system has claimed its workspace|MIt is not normally necessary to set this value
Hspr:This is the amount of memory to be allocated to the system sprite area on a system reset|MIt is not normally necessary to set this value
Hram:This is the amount of memory that will be allocated for the RAM disc on a system reset|MIt is useful to set this value if you always use the RAM disc, and want the computer to power up with it already allocated
HIcon:\Scontrol the use of memory by the operating system at power-up
HIscr:the memory for the screen at start-up
HIheap:the memory for the system heap at start-up
HImod:the memory in the module area at start-up
HIspr:the memory for the system sprite pool at start-up