84PCE:RAM:D005F8

Synopsis

Official Name: OP1,OP2,OP3,OP4,OP5,OP6,OP7

Memory Address: D005F8h - D00644h

Length: 11 bytes each; 77 bytes total

These "registers" are used often to compute many useful things

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This area is divided into seven 11-byte registers:

• OP1 = D005F8h
• OP2 = D00603h
• OP3 = D0060Eh
• OP4 = D00619h
• OP5 = D00624h
• OP6 = D0062Fh
• OP7 = D0063Ah

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.
• The seventh OP register is only used when finding Image variables in RAM. It can generally be used as scrap.