Difference between revisions of "83:ROMCalls:40B6"
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Revision as of 09:55, 14 April 2005
Synopsis
Official Name: InvOP1S
Call Address: 40B6
This routine inverts the sign of OP1.
Inputs
- OP1 = floating point number
Outputs
- OP1 = -OP1
- A = ([[83:RAM:8039|OP1)
- F = nc, nz if OP1 is negative, z if positive
- BC,DE,HL preserved