Mercurial > repos > blastem
view fib.s68 @ 19:4717146a7606
Initial support for M68k reset vector, rather than starting at an arbitrary address
author | Mike Pavone <pavone@retrodev.com> |
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date | Tue, 04 Dec 2012 19:25:54 -0800 |
parents | 5a2c1da6dd0f |
children | f664eeb55cb4 |
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dc.l $0, start start: moveq #10, d0 bsr fib illegal fib: cmp.l #2, d0 blt base subq.l #1, d0 move.l d0, -(a7) bsr fib move.l (a7), d1 exg d0, d1 move.l d1, (a7) subq.l #1, d0 bsr fib move.l (a7)+, d1 add.l d1, d0 rts base: moveq #1, d0 rts