83Plus:RAM:8478

Synopsis

Official Name: OP1-OP6

Memory Address: 8478

Length: 6 "registers" of 11 bytes each.

This area of memory is commonly used as temporary memory and for argument passing by many system routines.

Comments

Among the many functions the OP registers are used for:

• A single OP register can hold an 11-byte floating point number.
• Two adjacent OP registers -- usually OP1 and OP2, OP3 and OP4, or OP5 and OP6 -- can hold a 22-byte complex number.
• The first 9 bytes of an OP register can hold a variable name.
• OP3-OP6 are used for storing short strings.
• All 6 OP registers can be used together to hold a single big integer.