Difference between revisions of "83Plus:BCALLs:4063"
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Revision as of 21:51, 20 April 2005
Synopsis
Official Name: InvSub
BCALL Address: 4063
Computes the floating point subtraction op2-op1.
Inputs
- op1 = floating point number
- op2 = floating point number
Outputs
- op1 = op2-op1
Registers Destroyed
- AF, BC, DE, HL
Comments
This is similar to FPsub.
Example
Suppose op1=00h,80h,12h,00h,... And op2=00h,80h,10h,00h,... After B_CALL InvSub, op1=80h,7Fh,20h,00h,...
Suppose op1=00h,80h,10h,00h,... And op2=00h,80h,12h,00h,... After B_CALL InvSub, op1=00h,7Fh,20h,00h,...
