Difference between revisions of "83:ROMCalls:40BA"
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=== Outputs === | === Outputs === | ||
* OP2 = -OP2 | * OP2 = -OP2 | ||
| − | * A = ([[83:RAM:8039|OP2) | + | * A = ([[83:RAM:8039|OP2]]) = OP2 sign byte |
* F = nc, nz if OP2 is negative, z if positive | * F = nc, nz if OP2 is negative, z if positive | ||
* BC,DE,HL preserved | * BC,DE,HL preserved | ||
Latest revision as of 08:59, 14 April 2005
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
