Matrix transposition: Difference between revisions
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ELOOPI EQU * out of loop i |
ELOOPI EQU * out of loop i |
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...</lang> |
...</lang> |
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=={{header|68000 Assembly}}== |
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<lang 68000devpac>Transpose2DArray_B: |
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;INPUT: |
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;A0 = POINTER TO SOURCE ARRAY |
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;A1 = POINTER TO BACKUP AREA |
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; (YOU NEED THE SAME AMOUNT OF FREE SPACE AS THE SOURCE ARRAY.) |
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; (IT'S YOUR RESPONSIBILITY TO KNOW WHERE THAT IS.) |
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;D0.W = ARRAY ROW LENGTH-1 |
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;D1.W = ARRAY COLUMN HEIGHT-1 |
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MOVEM.L D2-D7,-(SP) |
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MOVE.W D0,D4 ;width - this copy is our loop counter |
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.outerloop: |
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MOVE.W D1,D7 ;height |
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MOVEQ.L #0,D3 |
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MOVE.W D0,D6 ;width - this copy is used to offset the array |
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ADDQ.L #1,D6 |
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.innerloop: |
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MOVE.B (A0,D3),(A1)+ |
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ADD.W D6,D3 |
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DBRA D7,.innerloop |
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ADDA.L #1,A0 |
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DBRA D4,.outerloop |
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MOVEM.L (SP)+,D2-D7 |
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RTS</lang> |
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=={{header|ACL2}}== |
=={{header|ACL2}}== |
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