83:ROMCalls:40B2

Synopsis

Official Name: InvOP1SC

Call Address: 40B2

This routine calls InvOP2S and runs through InvOP1S inverting the sign of both OP1 and OP2.

Inputs

• OP1 = floating point number
• OP2 = floating point number

Outputs

• OP1 = -OP1
• OP2 = -OP2
• A = (OP1) = OP1 sign byte
• F = nc, nz if OP1 is negative, z if positive
• BC,DE,HL preserved