83:ROMCalls:40B2

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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 = ([[83:RAM:8039|OP1)
  • F = nc, nz if OP1 is negative, z if positive
  • BC,DE,HL preserved
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