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pmc · 20 April 2012, 11:21

little optimisation - maybe obvious, maybe not but here goes...

Instead of:

Code:

                    lea                 vals(pc),An
                    move.w              (An)+,Dn
                    move.w              (An),Dn
                    ext.l               Dn
                    ext.l               Dn

this:

Code:

                    lea                 vals(pc),An
                    movem.w             (An),Dn-Dn

gets you the ext.l's for free

20 April 2012, 11:21	#29
pmc gone Join Date: Apr 2007 Location: completely gone Posts: 1,596	little optimisation - maybe obvious, maybe not but here goes... Instead of: Code: lea vals(pc),An move.w (An)+,Dn move.w (An),Dn ext.l Dn ext.l Dn this: Code: lea vals(pc),An movem.w (An),Dn-Dn gets you the ext.l's for free