Last change
on this file since d21fc6f was 7bf3856, checked in by Thomas Lopatic <thomas@…>, 7 years ago |
Added Alcyon C reference output.
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Property mode
set to
100644
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File size:
737 bytes
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Rev | Line | |
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[7bf3856] | 1 | .data
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| 2 | L1:.dc.w $1
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| 3 | .dc.w $2
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| 4 | .dc.w $4
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| 5 | .dc.w $8
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| 6 | .dc.w $10
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| 7 | .dc.w $20
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| 8 | .dc.w $40
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| 9 | .dc.w $80
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| 10 | .dc.w $100
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| 11 | .dc.w $200
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| 12 | .dc.w $400
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| 13 | .dc.w $800
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| 14 | .dc.w $1000
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| 15 | .dc.w $2000
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| 16 | .dc.w $4000
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| 17 | .dc.w $8000
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| 18 | .text
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| 19 | .globl _bitrev
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| 20 | .text
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| 21 | _bitrev:
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| 22 | ~~bitrev:
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| 23 | ~bitsin=8
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| 24 | ~nbits=10
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| 25 | link R14,#-8
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| 26 | ~m=-2
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| 27 | ~n=-4
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| 28 | *line 30
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| 29 | clr -4(R14)
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| 30 | *line 32
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| 31 | clr -2(R14)
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| 32 | bra L5
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| 33 | L6:
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| 34 | *line 33
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| 35 | *line 34
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| 36 | move -2(R14),R8
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| 37 | add.l R8,R8
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| 38 | move.l #L1,R9
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| 39 | move 0(R8,R9.l),R0
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| 40 | and 8(R14),R0
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| 41 | beq L7
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| 42 | *line 34
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| 43 | move 10(R14),R8
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| 44 | sub #1,R8
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| 45 | sub -2(R14),R8
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| 46 | add.l R8,R8
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| 47 | add.l #L1,R8
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| 48 | move (R8),R0
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| 49 | or R0,-4(R14)
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| 50 | *line 35
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| 51 | L7:L4:
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| 52 | *line 32
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| 53 | add #1,-2(R14)
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| 54 | L5:
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| 55 | *line 32
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| 56 | move -2(R14),R0
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| 57 | cmp 10(R14),R0
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| 58 | blt L6
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| 59 | L3:
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| 60 | *line 36
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| 61 | move -4(R14),R0
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| 62 | bra L2
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| 63 | L2:unlk R14
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| 64 | rts
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| 65 | .data
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