83:ROMCalls:40BA

Synopsis

Official Name: InvOP2S

Call Address: 40BA

This routine inverts the sign of OP2.

Inputs

• OP2 = floating point number

Outputs

• OP2 = -OP2
• A = (OP2) = OP2 sign byte
• F = nc, nz if OP2 is negative, z if positive
• BC,DE,HL preserved