Mercurial > repos > blastem
view fib.s68 @ 4:6f6a2d7cc889
Add support for some bit instructions and a few others in the same "category"
author | Mike Pavone <pavone@retrodev.com> |
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date | Sun, 04 Nov 2012 23:43:03 -0800 |
parents | 5a2c1da6dd0f |
children | 4717146a7606 |
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lea 0, a7 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