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arm: add back ldr_dpren macro that was lost.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Michael Niedermayer authored on 2011/12/16 01:24:43
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@@ -119,6 +119,12 @@ T       sub             \rn, \rn, \rm
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 T       ldr             \rt, [\rn]
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 .endm
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+.macro  ldr_dpren       rt,  rn,  rm:vararg
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+A       ldr             \rt, [\rn, -\rm]
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+T       sub             \rt, \rn, \rm
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+T       ldr             \rt, [\rt]
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+.endm
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+
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 .macro  ldr_post        rt,  rn,  rm:vararg
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 A       ldr             \rt, [\rn], \rm
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 T       ldr             \rt, [\rn]