da1a4cef9e
Helper function for dpa_w_ph, dpax_w_ph, dps_w_ph and dpsx_w_ph incorrectly defines halfword vector elements as unsigned values. This results in wrong output which is not triggered in the tests as they also follow this logic. Signed-off-by: Petar Jovanovic <petarj@mips.com> Reviewed-by: Eric Johnson <ericj@mips.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
45 lines
931 B
C
45 lines
931 B
C
#include<stdio.h>
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#include<assert.h>
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int main()
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{
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int rs, rt;
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int ach = 5, acl = 5;
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int resulth, resultl;
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rs = 0x00FF00FF;
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rt = 0x00010002;
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resulth = 0x05;
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resultl = 0x0302;
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__asm
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("mthi %0, $ac1\n\t"
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"mtlo %1, $ac1\n\t"
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"dpa.w.ph $ac1, %2, %3\n\t"
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"mfhi %0, $ac1\n\t"
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"mflo %1, $ac1\n\t"
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: "+r"(ach), "+r"(acl)
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: "r"(rs), "r"(rt)
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);
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assert(ach == resulth);
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assert(acl == resultl);
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ach = 6, acl = 7;
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rs = 0xFFFF00FF;
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rt = 0xFFFF0002;
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resulth = 0x06;
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resultl = 0x206;
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__asm
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("mthi %0, $ac1\n\t"
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"mtlo %1, $ac1\n\t"
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"dpa.w.ph $ac1, %2, %3\n\t"
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"mfhi %0, $ac1\n\t"
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"mflo %1, $ac1\n\t"
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: "+r"(ach), "+r"(acl)
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: "r"(rs), "r"(rt)
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);
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assert(ach == resulth);
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assert(acl == resultl);
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return 0;
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}
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